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path: root/drivers/usb/musb
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Diffstat (limited to 'drivers/usb/musb')
-rw-r--r--drivers/usb/musb/Kconfig3
-rw-r--r--drivers/usb/musb/am35x.c67
-rw-r--r--drivers/usb/musb/blackfin.c64
-rw-r--r--drivers/usb/musb/cppi_dma.c2
-rw-r--r--drivers/usb/musb/da8xx.c59
-rw-r--r--drivers/usb/musb/davinci.c67
-rw-r--r--drivers/usb/musb/musb_core.c331
-rw-r--r--drivers/usb/musb/musb_core.h17
-rw-r--r--drivers/usb/musb/musb_debugfs.c8
-rw-r--r--drivers/usb/musb/musb_dma.h2
-rw-r--r--drivers/usb/musb/musb_dsps.c194
-rw-r--r--drivers/usb/musb/musb_gadget.c172
-rw-r--r--drivers/usb/musb/musb_host.c264
-rw-r--r--drivers/usb/musb/musb_host.h3
-rw-r--r--drivers/usb/musb/musb_virthub.c13
-rw-r--r--drivers/usb/musb/musbhsdma.c2
-rw-r--r--drivers/usb/musb/omap2430.c156
-rw-r--r--drivers/usb/musb/omap2430.h9
-rw-r--r--drivers/usb/musb/tusb6010.c57
-rw-r--r--drivers/usb/musb/tusb6010_omap.c2
-rw-r--r--drivers/usb/musb/ux500.c33
-rw-r--r--drivers/usb/musb/ux500_dma.c2
22 files changed, 872 insertions, 655 deletions
diff --git a/drivers/usb/musb/Kconfig b/drivers/usb/musb/Kconfig
index 6259f0d99324..23a0b7f0892d 100644
--- a/drivers/usb/musb/Kconfig
+++ b/drivers/usb/musb/Kconfig
@@ -12,7 +12,6 @@ config USB_MUSB_HDRC
select TWL4030_USB if MACH_OMAP_3430SDP
select TWL6030_USB if MACH_OMAP_4430SDP || MACH_OMAP4_PANDA
select USB_OTG_UTILS
- select USB_GADGET_DUALSPEED
help
Say Y here if your system has a dual role high speed USB
controller based on the Mentor Graphics silicon IP. Then
@@ -20,7 +19,7 @@ config USB_MUSB_HDRC
it's being used with, including the USB peripheral role,
or the USB host role, or both.
- Texas Instruments familiies using this IP include DaVinci
+ Texas Instruments families using this IP include DaVinci
(35x, 644x ...), OMAP 243x, OMAP 3, and TUSB 6010.
Analog Devices parts using this IP include Blackfin BF54x,
diff --git a/drivers/usb/musb/am35x.c b/drivers/usb/musb/am35x.c
index 7a95ab87ac00..457f25e62c51 100644
--- a/drivers/usb/musb/am35x.c
+++ b/drivers/usb/musb/am35x.c
@@ -33,6 +33,7 @@
#include <linux/io.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
+#include <linux/usb/nop-usb-xceiv.h>
#include <plat/usb.h>
@@ -107,9 +108,8 @@ static void am35x_musb_enable(struct musb *musb)
musb_writel(reg_base, CORE_INTR_MASK_SET_REG, AM35X_INTR_USB_MASK);
/* Force the DRVVBUS IRQ so we can start polling for ID change. */
- if (is_otg_enabled(musb))
- musb_writel(reg_base, CORE_INTR_SRC_SET_REG,
- AM35X_INTR_DRVVBUS << AM35X_INTR_USB_SHIFT);
+ musb_writel(reg_base, CORE_INTR_SRC_SET_REG,
+ AM35X_INTR_DRVVBUS << AM35X_INTR_USB_SHIFT);
}
/*
@@ -173,9 +173,6 @@ static void otg_timer(unsigned long _musb)
MUSB_INTR_VBUSERROR << AM35X_INTR_USB_SHIFT);
break;
case OTG_STATE_B_IDLE:
- if (!is_peripheral_enabled(musb))
- break;
-
devctl = musb_readb(mregs, MUSB_DEVCTL);
if (devctl & MUSB_DEVCTL_BDEVICE)
mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
@@ -192,9 +189,6 @@ static void am35x_musb_try_idle(struct musb *musb, unsigned long timeout)
{
static unsigned long last_timer;
- if (!is_otg_enabled(musb))
- return;
-
if (timeout == 0)
timeout = jiffies + msecs_to_jiffies(3);
@@ -271,8 +265,7 @@ static irqreturn_t am35x_musb_interrupt(int irq, void *hci)
u8 devctl = musb_readb(mregs, MUSB_DEVCTL);
int err;
- err = is_host_enabled(musb) && (musb->int_usb &
- MUSB_INTR_VBUSERROR);
+ err = musb->int_usb & MUSB_INTR_VBUSERROR;
if (err) {
/*
* The Mentor core doesn't debounce VBUS as needed
@@ -289,7 +282,7 @@ static irqreturn_t am35x_musb_interrupt(int irq, void *hci)
musb->xceiv->state = OTG_STATE_A_WAIT_VFALL;
mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
WARNING("VBUS error workaround (delay coming)\n");
- } else if (is_host_enabled(musb) && drvvbus) {
+ } else if (drvvbus) {
MUSB_HST_MODE(musb);
otg->default_a = 1;
musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
@@ -326,7 +319,7 @@ eoi:
}
/* Poll for ID change */
- if (is_otg_enabled(musb) && musb->xceiv->state == OTG_STATE_B_IDLE)
+ if (musb->xceiv->state == OTG_STATE_B_IDLE)
mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
spin_unlock_irqrestore(&musb->lock, flags);
@@ -369,8 +362,7 @@ static int am35x_musb_init(struct musb *musb)
if (IS_ERR_OR_NULL(musb->xceiv))
return -ENODEV;
- if (is_host_enabled(musb))
- setup_timer(&otg_workaround, otg_timer, (unsigned long) musb);
+ setup_timer(&otg_workaround, otg_timer, (unsigned long) musb);
/* Reset the musb */
if (data->reset)
@@ -400,8 +392,7 @@ static int am35x_musb_exit(struct musb *musb)
struct musb_hdrc_platform_data *plat = dev->platform_data;
struct omap_musb_board_data *data = plat->board_data;
- if (is_host_enabled(musb))
- del_timer_sync(&otg_workaround);
+ del_timer_sync(&otg_workaround);
/* Shutdown the on-chip PHY and its PLL. */
if (data->set_phy_power)
@@ -468,6 +459,7 @@ static int __devinit am35x_probe(struct platform_device *pdev)
struct clk *clk;
int ret = -ENOMEM;
+ int musbid;
glue = kzalloc(sizeof(*glue), GFP_KERNEL);
if (!glue) {
@@ -475,38 +467,47 @@ static int __devinit am35x_probe(struct platform_device *pdev)
goto err0;
}
- musb = platform_device_alloc("musb-hdrc", -1);
+ /* get the musb id */
+ musbid = musb_get_id(&pdev->dev, GFP_KERNEL);
+ if (musbid < 0) {
+ dev_err(&pdev->dev, "failed to allocate musb id\n");
+ ret = -ENOMEM;
+ goto err1;
+ }
+
+ musb = platform_device_alloc("musb-hdrc", musbid);
if (!musb) {
dev_err(&pdev->dev, "failed to allocate musb device\n");
- goto err1;
+ goto err2;
}
phy_clk = clk_get(&pdev->dev, "fck");
if (IS_ERR(phy_clk)) {
dev_err(&pdev->dev, "failed to get PHY clock\n");
ret = PTR_ERR(phy_clk);
- goto err2;
+ goto err3;
}
clk = clk_get(&pdev->dev, "ick");
if (IS_ERR(clk)) {
dev_err(&pdev->dev, "failed to get clock\n");
ret = PTR_ERR(clk);
- goto err3;
+ goto err4;
}
ret = clk_enable(phy_clk);
if (ret) {
dev_err(&pdev->dev, "failed to enable PHY clock\n");
- goto err4;
+ goto err5;
}
ret = clk_enable(clk);
if (ret) {
dev_err(&pdev->dev, "failed to enable clock\n");
- goto err5;
+ goto err6;
}
+ musb->id = musbid;
musb->dev.parent = &pdev->dev;
musb->dev.dma_mask = &am35x_dmamask;
musb->dev.coherent_dma_mask = am35x_dmamask;
@@ -524,38 +525,41 @@ static int __devinit am35x_probe(struct platform_device *pdev)
pdev->num_resources);
if (ret) {
dev_err(&pdev->dev, "failed to add resources\n");
- goto err6;
+ goto err7;
}
ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
if (ret) {
dev_err(&pdev->dev, "failed to add platform_data\n");
- goto err6;
+ goto err7;
}
ret = platform_device_add(musb);
if (ret) {
dev_err(&pdev->dev, "failed to register musb device\n");
- goto err6;
+ goto err7;
}
return 0;
-err6:
+err7:
clk_disable(clk);
-err5:
+err6:
clk_disable(phy_clk);
-err4:
+err5:
clk_put(clk);
-err3:
+err4:
clk_put(phy_clk);
-err2:
+err3:
platform_device_put(musb);
+err2:
+ musb_put_id(&pdev->dev, musbid);
+
err1:
kfree(glue);
@@ -567,6 +571,7 @@ static int __devexit am35x_remove(struct platform_device *pdev)
{
struct am35x_glue *glue = platform_get_drvdata(pdev);
+ musb_put_id(&pdev->dev, glue->musb->id);
platform_device_del(glue->musb);
platform_device_put(glue->musb);
clk_disable(glue->clk);
diff --git a/drivers/usb/musb/blackfin.c b/drivers/usb/musb/blackfin.c
index 428e6aa3e78a..e8cff9bb9d23 100644
--- a/drivers/usb/musb/blackfin.c
+++ b/drivers/usb/musb/blackfin.c
@@ -19,6 +19,7 @@
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
#include <linux/prefetch.h>
+#include <linux/usb/nop-usb-xceiv.h>
#include <asm/cacheflush.h>
@@ -184,8 +185,8 @@ static irqreturn_t blackfin_interrupt(int irq, void *__hci)
}
/* Start sampling ID pin, when plug is removed from MUSB */
- if ((is_otg_enabled(musb) && (musb->xceiv->state == OTG_STATE_B_IDLE
- || musb->xceiv->state == OTG_STATE_A_WAIT_BCON)) ||
+ if ((musb->xceiv->state == OTG_STATE_B_IDLE
+ || musb->xceiv->state == OTG_STATE_A_WAIT_BCON) ||
(musb->int_usb & MUSB_INTR_DISCONNECT && is_host_active(musb))) {
mod_timer(&musb_conn_timer, jiffies + TIMER_DELAY);
musb->a_wait_bcon = TIMER_DELAY;
@@ -228,18 +229,13 @@ static void musb_conn_timer_handler(unsigned long _musb)
val = MUSB_INTR_SUSPEND | MUSB_INTR_VBUSERROR;
musb_writeb(musb->mregs, MUSB_INTRUSB, val);
- if (is_otg_enabled(musb))
- musb->xceiv->state = OTG_STATE_B_IDLE;
- else
- musb_writeb(musb->mregs, MUSB_POWER, MUSB_POWER_HSENAB);
+ musb->xceiv->state = OTG_STATE_B_IDLE;
}
mod_timer(&musb_conn_timer, jiffies + TIMER_DELAY);
break;
case OTG_STATE_B_IDLE:
-
- if (!is_peripheral_enabled(musb))
- break;
- /* Start a new session. It seems that MUSB needs taking
+ /*
+ * Start a new session. It seems that MUSB needs taking
* some time to recognize the type of the plug inserted?
*/
val = musb_readw(musb->mregs, MUSB_DEVCTL);
@@ -295,10 +291,7 @@ static void musb_conn_timer_handler(unsigned long _musb)
static void bfin_musb_enable(struct musb *musb)
{
- if (!is_otg_enabled(musb) && is_host_enabled(musb)) {
- mod_timer(&musb_conn_timer, jiffies + TIMER_DELAY);
- musb->a_wait_bcon = TIMER_DELAY;
- }
+ /* REVISIT is this really correct ? */
}
static void bfin_musb_disable(struct musb *musb)
@@ -323,12 +316,6 @@ static int bfin_musb_set_power(struct usb_phy *x, unsigned mA)
return 0;
}
-static void bfin_musb_try_idle(struct musb *musb, unsigned long timeout)
-{
- if (!is_otg_enabled(musb) && is_host_enabled(musb))
- mod_timer(&musb_conn_timer, jiffies + TIMER_DELAY);
-}
-
static int bfin_musb_vbus_status(struct musb *musb)
{
return 0;
@@ -424,12 +411,10 @@ static int bfin_musb_init(struct musb *musb)
bfin_musb_reg_init(musb);
- if (is_host_enabled(musb)) {
- setup_timer(&musb_conn_timer,
- musb_conn_timer_handler, (unsigned long) musb);
- }
- if (is_peripheral_enabled(musb))
- musb->xceiv->set_power = bfin_musb_set_power;
+ setup_timer(&musb_conn_timer, musb_conn_timer_handler,
+ (unsigned long) musb);
+
+ musb->xceiv->set_power = bfin_musb_set_power;
musb->isr = blackfin_interrupt;
musb->double_buffer_not_ok = true;
@@ -454,7 +439,6 @@ static const struct musb_platform_ops bfin_ops = {
.disable = bfin_musb_disable,
.set_mode = bfin_musb_set_mode,
- .try_idle = bfin_musb_try_idle,
.vbus_status = bfin_musb_vbus_status,
.set_vbus = bfin_musb_set_vbus,
@@ -471,6 +455,7 @@ static int __devinit bfin_probe(struct platform_device *pdev)
struct bfin_glue *glue;
int ret = -ENOMEM;
+ int musbid;
glue = kzalloc(sizeof(*glue), GFP_KERNEL);
if (!glue) {
@@ -478,12 +463,21 @@ static int __devinit bfin_probe(struct platform_device *pdev)
goto err0;
}
- musb = platform_device_alloc("musb-hdrc", -1);
+ /* get the musb id */
+ musbid = musb_get_id(&pdev->dev, GFP_KERNEL);
+ if (musbid < 0) {
+ dev_err(&pdev->dev, "failed to allocate musb id\n");
+ ret = -ENOMEM;
+ goto err1;
+ }
+
+ musb = platform_device_alloc("musb-hdrc", musbid);
if (!musb) {
dev_err(&pdev->dev, "failed to allocate musb device\n");
- goto err1;
+ goto err2;
}
+ musb->id = musbid;
musb->dev.parent = &pdev->dev;
musb->dev.dma_mask = &bfin_dmamask;
musb->dev.coherent_dma_mask = bfin_dmamask;
@@ -499,26 +493,29 @@ static int __devinit bfin_probe(struct platform_device *pdev)
pdev->num_resources);
if (ret) {
dev_err(&pdev->dev, "failed to add resources\n");
- goto err2;
+ goto err3;
}
ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
if (ret) {
dev_err(&pdev->dev, "failed to add platform_data\n");
- goto err2;
+ goto err3;
}
ret = platform_device_add(musb);
if (ret) {
dev_err(&pdev->dev, "failed to register musb device\n");
- goto err2;
+ goto err3;
}
return 0;
-err2:
+err3:
platform_device_put(musb);
+err2:
+ musb_put_id(&pdev->dev, musbid);
+
err1:
kfree(glue);
@@ -530,6 +527,7 @@ static int __devexit bfin_remove(struct platform_device *pdev)
{
struct bfin_glue *glue = platform_get_drvdata(pdev);
+ musb_put_id(&pdev->dev, glue->musb->id);
platform_device_del(glue->musb);
platform_device_put(glue->musb);
kfree(glue);
diff --git a/drivers/usb/musb/cppi_dma.c b/drivers/usb/musb/cppi_dma.c
index 8637c1f69fc3..e19da82b4782 100644
--- a/drivers/usb/musb/cppi_dma.c
+++ b/drivers/usb/musb/cppi_dma.c
@@ -1316,7 +1316,7 @@ irqreturn_t cppi_interrupt(int irq, void *dev_id)
}
/* Instantiate a software object representing a DMA controller. */
-struct dma_controller *__init
+struct dma_controller *__devinit
dma_controller_create(struct musb *musb, void __iomem *mregs)
{
struct cppi *controller;
diff --git a/drivers/usb/musb/da8xx.c b/drivers/usb/musb/da8xx.c
index 0f9fcec4e1d3..ce11d20b90f4 100644
--- a/drivers/usb/musb/da8xx.c
+++ b/drivers/usb/musb/da8xx.c
@@ -33,6 +33,7 @@
#include <linux/io.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
+#include <linux/usb/nop-usb-xceiv.h>
#include <mach/da8xx.h>
#include <mach/usb.h>
@@ -155,9 +156,8 @@ static void da8xx_musb_enable(struct musb *musb)
musb_writel(reg_base, DA8XX_USB_INTR_MASK_SET_REG, mask);
/* Force the DRVVBUS IRQ so we can start polling for ID change. */
- if (is_otg_enabled(musb))
- musb_writel(reg_base, DA8XX_USB_INTR_SRC_SET_REG,
- DA8XX_INTR_DRVVBUS << DA8XX_INTR_USB_SHIFT);
+ musb_writel(reg_base, DA8XX_USB_INTR_SRC_SET_REG,
+ DA8XX_INTR_DRVVBUS << DA8XX_INTR_USB_SHIFT);
}
/**
@@ -231,9 +231,6 @@ static void otg_timer(unsigned long _musb)
MUSB_INTR_VBUSERROR << DA8XX_INTR_USB_SHIFT);
break;
case OTG_STATE_B_IDLE:
- if (!is_peripheral_enabled(musb))
- break;
-
/*
* There's no ID-changed IRQ, so we have no good way to tell
* when to switch to the A-Default state machine (by setting
@@ -263,9 +260,6 @@ static void da8xx_musb_try_idle(struct musb *musb, unsigned long timeout)
{
static unsigned long last_timer;
- if (!is_otg_enabled(musb))
- return;
-
if (timeout == 0)
timeout = jiffies + msecs_to_jiffies(3);
@@ -333,8 +327,7 @@ static irqreturn_t da8xx_musb_interrupt(int irq, void *hci)
u8 devctl = musb_readb(mregs, MUSB_DEVCTL);
int err;
- err = is_host_enabled(musb) && (musb->int_usb &
- MUSB_INTR_VBUSERROR);
+ err = musb->int_usb & USB_INTR_VBUSERROR;
if (err) {
/*
* The Mentor core doesn't debounce VBUS as needed
@@ -351,7 +344,7 @@ static irqreturn_t da8xx_musb_interrupt(int irq, void *hci)
musb->xceiv->state = OTG_STATE_A_WAIT_VFALL;
mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
WARNING("VBUS error workaround (delay coming)\n");
- } else if (is_host_enabled(musb) && drvvbus) {
+ } else if (drvvbus) {
MUSB_HST_MODE(musb);
otg->default_a = 1;
musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
@@ -382,7 +375,7 @@ static irqreturn_t da8xx_musb_interrupt(int irq, void *hci)
musb_writel(reg_base, DA8XX_USB_END_OF_INTR_REG, 0);
/* Poll for ID change */
- if (is_otg_enabled(musb) && musb->xceiv->state == OTG_STATE_B_IDLE)
+ if (musb->xceiv->state == OTG_STATE_B_IDLE)
mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
spin_unlock_irqrestore(&musb->lock, flags);
@@ -430,8 +423,7 @@ static int da8xx_musb_init(struct musb *musb)
if (IS_ERR_OR_NULL(musb->xceiv))
goto fail;
- if (is_host_enabled(musb))
- setup_timer(&otg_workaround, otg_timer, (unsigned long)musb);
+ setup_timer(&otg_workaround, otg_timer, (unsigned long)musb);
/* Reset the controller */
musb_writel(reg_base, DA8XX_USB_CTRL_REG, DA8XX_SOFT_RESET_MASK);
@@ -454,8 +446,7 @@ fail:
static int da8xx_musb_exit(struct musb *musb)
{
- if (is_host_enabled(musb))
- del_timer_sync(&otg_workaround);
+ del_timer_sync(&otg_workaround);
phy_off();
@@ -489,6 +480,7 @@ static int __devinit da8xx_probe(struct platform_device *pdev)
struct clk *clk;
int ret = -ENOMEM;
+ int musbid;
glue = kzalloc(sizeof(*glue), GFP_KERNEL);
if (!glue) {
@@ -496,25 +488,34 @@ static int __devinit da8xx_probe(struct platform_device *pdev)
goto err0;
}
- musb = platform_device_alloc("musb-hdrc", -1);
+ /* get the musb id */
+ musbid = musb_get_id(&pdev->dev, GFP_KERNEL);
+ if (musbid < 0) {
+ dev_err(&pdev->dev, "failed to allocate musb id\n");
+ ret = -ENOMEM;
+ goto err1;
+ }
+
+ musb = platform_device_alloc("musb-hdrc", musbid);
if (!musb) {
dev_err(&pdev->dev, "failed to allocate musb device\n");
- goto err1;
+ goto err2;
}
clk = clk_get(&pdev->dev, "usb20");
if (IS_ERR(clk)) {
dev_err(&pdev->dev, "failed to get clock\n");
ret = PTR_ERR(clk);
- goto err2;
+ goto err3;
}
ret = clk_enable(clk);
if (ret) {
dev_err(&pdev->dev, "failed to enable clock\n");
- goto err3;
+ goto err4;
}
+ musb->id = musbid;
musb->dev.parent = &pdev->dev;
musb->dev.dma_mask = &da8xx_dmamask;
musb->dev.coherent_dma_mask = da8xx_dmamask;
@@ -531,32 +532,35 @@ static int __devinit da8xx_probe(struct platform_device *pdev)
pdev->num_resources);
if (ret) {
dev_err(&pdev->dev, "failed to add resources\n");
- goto err4;
+ goto err5;
}
ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
if (ret) {
dev_err(&pdev->dev, "failed to add platform_data\n");
- goto err4;
+ goto err5;
}
ret = platform_device_add(musb);
if (ret) {
dev_err(&pdev->dev, "failed to register musb device\n");
- goto err4;
+ goto err5;
}
return 0;
-err4:
+err5:
clk_disable(clk);
-err3:
+err4:
clk_put(clk);
-err2:
+err3:
platform_device_put(musb);
+err2:
+ musb_put_id(&pdev->dev, musbid);
+
err1:
kfree(glue);
@@ -568,6 +572,7 @@ static int __devexit da8xx_remove(struct platform_device *pdev)
{
struct da8xx_glue *glue = platform_get_drvdata(pdev);
+ musb_put_id(&pdev->dev, glue->musb->id);
platform_device_del(glue->musb);
platform_device_put(glue->musb);
clk_disable(glue->clk);
diff --git a/drivers/usb/musb/davinci.c b/drivers/usb/musb/davinci.c
index 472c8b42d38b..606bfd00cde6 100644
--- a/drivers/usb/musb/davinci.c
+++ b/drivers/usb/musb/davinci.c
@@ -33,6 +33,7 @@
#include <linux/gpio.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
+#include <linux/usb/nop-usb-xceiv.h>
#include <mach/cputype.h>
#include <mach/hardware.h>
@@ -115,8 +116,7 @@ static void davinci_musb_enable(struct musb *musb)
dma_off = 0;
/* force a DRVVBUS irq so we can start polling for ID change */
- if (is_otg_enabled(musb))
- musb_writel(musb->ctrl_base, DAVINCI_USB_INT_SET_REG,
+ musb_writel(musb->ctrl_base, DAVINCI_USB_INT_SET_REG,
DAVINCI_INTR_DRVVBUS << DAVINCI_USB_USBINT_SHIFT);
}
@@ -234,10 +234,8 @@ static void otg_timer(unsigned long _musb)
MUSB_INTR_VBUSERROR << DAVINCI_USB_USBINT_SHIFT);
break;
case OTG_STATE_B_IDLE:
- if (!is_peripheral_enabled(musb))
- break;
-
- /* There's no ID-changed IRQ, so we have no good way to tell
+ /*
+ * There's no ID-changed IRQ, so we have no good way to tell
* when to switch to the A-Default state machine (by setting
* the DEVCTL.SESSION flag).
*
@@ -315,8 +313,7 @@ static irqreturn_t davinci_musb_interrupt(int irq, void *__hci)
u8 devctl = musb_readb(mregs, MUSB_DEVCTL);
int err = musb->int_usb & MUSB_INTR_VBUSERROR;
- err = is_host_enabled(musb)
- && (musb->int_usb & MUSB_INTR_VBUSERROR);
+ err = musb->int_usb & MUSB_INTR_VBUSERROR;
if (err) {
/* The Mentor core doesn't debounce VBUS as needed
* to cope with device connect current spikes. This
@@ -332,7 +329,7 @@ static irqreturn_t davinci_musb_interrupt(int irq, void *__hci)
musb->xceiv->state = OTG_STATE_A_WAIT_VFALL;
mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
WARNING("VBUS error workaround (delay coming)\n");
- } else if (is_host_enabled(musb) && drvvbus) {
+ } else if (drvvbus) {
MUSB_HST_MODE(musb);
otg->default_a = 1;
musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
@@ -365,8 +362,7 @@ static irqreturn_t davinci_musb_interrupt(int irq, void *__hci)
musb_writel(tibase, DAVINCI_USB_EOI_REG, 0);
/* poll for ID change */
- if (is_otg_enabled(musb)
- && musb->xceiv->state == OTG_STATE_B_IDLE)
+ if (musb->xceiv->state == OTG_STATE_B_IDLE)
mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
spin_unlock_irqrestore(&musb->lock, flags);
@@ -397,8 +393,7 @@ static int davinci_musb_init(struct musb *musb)
if (revision == 0)
goto fail;
- if (is_host_enabled(musb))
- setup_timer(&otg_workaround, otg_timer, (unsigned long) musb);
+ setup_timer(&otg_workaround, otg_timer, (unsigned long) musb);
davinci_musb_source_power(musb, 0, 1);
@@ -419,12 +414,7 @@ static int davinci_musb_init(struct musb *musb)
if (cpu_is_davinci_dm355()) {
u32 deepsleep = __raw_readl(DM355_DEEPSLEEP);
- if (is_host_enabled(musb)) {
- deepsleep &= ~DRVVBUS_OVERRIDE;
- } else {
- deepsleep &= ~DRVVBUS_FORCE;
- deepsleep |= DRVVBUS_OVERRIDE;
- }
+ deepsleep &= ~DRVVBUS_FORCE;
__raw_writel(deepsleep, DM355_DEEPSLEEP);
}
@@ -453,8 +443,7 @@ unregister:
static int davinci_musb_exit(struct musb *musb)
{
- if (is_host_enabled(musb))
- del_timer_sync(&otg_workaround);
+ del_timer_sync(&otg_workaround);
/* force VBUS off */
if (cpu_is_davinci_dm355()) {
@@ -468,7 +457,7 @@ static int davinci_musb_exit(struct musb *musb)
davinci_musb_source_power(musb, 0 /*off*/, 1);
/* delay, to avoid problems with module reload */
- if (is_host_enabled(musb) && musb->xceiv->otg->default_a) {
+ if (musb->xceiv->otg->default_a) {
int maxdelay = 30;
u8 devctl, warn = 0;
@@ -523,6 +512,7 @@ static int __devinit davinci_probe(struct platform_device *pdev)
struct clk *clk;
int ret = -ENOMEM;
+ int musbid;
glue = kzalloc(sizeof(*glue), GFP_KERNEL);
if (!glue) {
@@ -530,25 +520,34 @@ static int __devinit davinci_probe(struct platform_device *pdev)
goto err0;
}
- musb = platform_device_alloc("musb-hdrc", -1);
+ /* get the musb id */
+ musbid = musb_get_id(&pdev->dev, GFP_KERNEL);
+ if (musbid < 0) {
+ dev_err(&pdev->dev, "failed to allocate musb id\n");
+ ret = -ENOMEM;
+ goto err1;
+ }
+
+ musb = platform_device_alloc("musb-hdrc", musbid);
if (!musb) {
dev_err(&pdev->dev, "failed to allocate musb device\n");
- goto err1;
+ goto err2;
}
clk = clk_get(&pdev->dev, "usb");
if (IS_ERR(clk)) {
dev_err(&pdev->dev, "failed to get clock\n");
ret = PTR_ERR(clk);
- goto err2;
+ goto err3;
}
ret = clk_enable(clk);
if (ret) {
dev_err(&pdev->dev, "failed to enable clock\n");
- goto err3;
+ goto err4;
}
+ musb->id = musbid;
musb->dev.parent = &pdev->dev;
musb->dev.dma_mask = &davinci_dmamask;
musb->dev.coherent_dma_mask = davinci_dmamask;
@@ -565,32 +564,35 @@ static int __devinit davinci_probe(struct platform_device *pdev)
pdev->num_resources);
if (ret) {
dev_err(&pdev->dev, "failed to add resources\n");
- goto err4;
+ goto err5;
}
ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
if (ret) {
dev_err(&pdev->dev, "failed to add platform_data\n");
- goto err4;
+ goto err5;
}
ret = platform_device_add(musb);
if (ret) {
dev_err(&pdev->dev, "failed to register musb device\n");
- goto err4;
+ goto err5;
}
return 0;
-err4:
+err5:
clk_disable(clk);
-err3:
+err4:
clk_put(clk);
-err2:
+err3:
platform_device_put(musb);
+err2:
+ musb_put_id(&pdev->dev, musbid);
+
err1:
kfree(glue);
@@ -602,6 +604,7 @@ static int __devexit davinci_remove(struct platform_device *pdev)
{
struct davinci_glue *glue = platform_get_drvdata(pdev);
+ musb_put_id(&pdev->dev, glue->musb->id);
platform_device_del(glue->musb);
platform_device_put(glue->musb);
clk_disable(glue->clk);
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 26f1befb4896..bb56a0e8b23b 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -99,6 +99,8 @@
#include <linux/prefetch.h>
#include <linux/platform_device.h>
#include <linux/io.h>
+#include <linux/idr.h>
+#include <linux/dma-mapping.h>
#include "musb_core.h"
@@ -114,6 +116,7 @@
#define MUSB_DRIVER_NAME "musb-hdrc"
const char musb_driver_name[] = MUSB_DRIVER_NAME;
+static DEFINE_IDA(musb_ida);
MODULE_DESCRIPTION(DRIVER_INFO);
MODULE_AUTHOR(DRIVER_AUTHOR);
@@ -130,6 +133,35 @@ static inline struct musb *dev_to_musb(struct device *dev)
/*-------------------------------------------------------------------------*/
+int musb_get_id(struct device *dev, gfp_t gfp_mask)
+{
+ int ret;
+ int id;
+
+ ret = ida_pre_get(&musb_ida, gfp_mask);
+ if (!ret) {
+ dev_err(dev, "failed to reserve resource for id\n");
+ return -ENOMEM;
+ }
+
+ ret = ida_get_new(&musb_ida, &id);
+ if (ret < 0) {
+ dev_err(dev, "failed to allocate a new id\n");
+ return ret;
+ }
+
+ return id;
+}
+EXPORT_SYMBOL_GPL(musb_get_id);
+
+void musb_put_id(struct device *dev, int id)
+{
+
+ dev_dbg(dev, "removing id %d\n", id);
+ ida_remove(&musb_ida, id);
+}
+EXPORT_SYMBOL_GPL(musb_put_id);
+
#ifndef CONFIG_BLACKFIN
static int musb_ulpi_read(struct usb_phy *phy, u32 offset)
{
@@ -234,6 +266,9 @@ void musb_write_fifo(struct musb_hw_ep *hw_ep, u16 len, const u8 *src)
struct musb *musb = hw_ep->musb;
void __iomem *fifo = hw_ep->fifo;
+ if (unlikely(len == 0))
+ return;
+
prefetch((u8 *)src);
dev_dbg(musb->controller, "%cX ep%d fifo %p count %d buf %p\n",
@@ -276,6 +311,9 @@ void musb_read_fifo(struct musb_hw_ep *hw_ep, u16 len, u8 *dst)
struct musb *musb = hw_ep->musb;
void __iomem *fifo = hw_ep->fifo;
+ if (unlikely(len == 0))
+ return;
+
dev_dbg(musb->controller, "%cX ep%d fifo %p count %d buf %p\n",
'R', hw_ep->epnum, fifo, len, dst);
@@ -348,7 +386,7 @@ void musb_load_testpacket(struct musb *musb)
/*
* Handles OTG hnp timeouts, such as b_ase0_brst
*/
-void musb_otg_timer_func(unsigned long data)
+static void musb_otg_timer_func(unsigned long data)
{
struct musb *musb = (struct musb *)data;
unsigned long flags;
@@ -643,8 +681,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
break;
case OTG_STATE_B_PERIPHERAL:
musb_g_suspend(musb);
- musb->is_active = is_otg_enabled(musb)
- && otg->gadget->b_hnp_enable;
+ musb->is_active = otg->gadget->b_hnp_enable;
if (musb->is_active) {
musb->xceiv->state = OTG_STATE_B_WAIT_ACON;
dev_dbg(musb->controller, "HNP: Setting timer for b_ase0_brst\n");
@@ -660,8 +697,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
break;
case OTG_STATE_A_HOST:
musb->xceiv->state = OTG_STATE_A_SUSPEND;
- musb->is_active = is_otg_enabled(musb)
- && otg->host->b_hnp_enable;
+ musb->is_active = otg->host->b_hnp_enable;
break;
case OTG_STATE_B_HOST:
/* Transition to B_PERIPHERAL, see 6.8.2.6 p 44 */
@@ -749,7 +785,7 @@ b_host:
case OTG_STATE_A_SUSPEND:
usb_hcd_resume_root_hub(musb_to_hcd(musb));
musb_root_disconnect(musb);
- if (musb->a_wait_bcon != 0 && is_otg_enabled(musb))
+ if (musb->a_wait_bcon != 0)
musb_platform_try_idle(musb, jiffies
+ msecs_to_jiffies(musb->a_wait_bcon));
break;
@@ -787,7 +823,7 @@ b_host:
*/
if (int_usb & MUSB_INTR_RESET) {
handled = IRQ_HANDLED;
- if (is_host_capable() && (devctl & MUSB_DEVCTL_HM) != 0) {
+ if ((devctl & MUSB_DEVCTL_HM) != 0) {
/*
* Looks like non-HS BABBLE can be ignored, but
* HS BABBLE is an error condition. For HS the solution
@@ -801,7 +837,7 @@ b_host:
ERR("Stopping host session -- babble\n");
musb_writeb(musb->mregs, MUSB_DEVCTL, 0);
}
- } else if (is_peripheral_capable()) {
+ } else {
dev_dbg(musb->controller, "BUS RESET as %s\n",
otg_state_string(musb->xceiv->state));
switch (musb->xceiv->state) {
@@ -925,25 +961,16 @@ void musb_start(struct musb *musb)
devctl = musb_readb(regs, MUSB_DEVCTL);
devctl &= ~MUSB_DEVCTL_SESSION;
- if (is_otg_enabled(musb)) {
- /* session started after:
- * (a) ID-grounded irq, host mode;
- * (b) vbus present/connect IRQ, peripheral mode;
- * (c) peripheral initiates, using SRP
- */
- if ((devctl & MUSB_DEVCTL_VBUS) == MUSB_DEVCTL_VBUS)
- musb->is_active = 1;
- else
- devctl |= MUSB_DEVCTL_SESSION;
-
- } else if (is_host_enabled(musb)) {
- /* assume ID pin is hard-wired to ground */
+ /* session started after:
+ * (a) ID-grounded irq, host mode;
+ * (b) vbus present/connect IRQ, peripheral mode;
+ * (c) peripheral initiates, using SRP
+ */
+ if ((devctl & MUSB_DEVCTL_VBUS) == MUSB_DEVCTL_VBUS)
+ musb->is_active = 1;
+ else
devctl |= MUSB_DEVCTL_SESSION;
- } else /* peripheral is enabled */ {
- if ((devctl & MUSB_DEVCTL_VBUS) == MUSB_DEVCTL_VBUS)
- musb->is_active = 1;
- }
musb_platform_enable(musb);
musb_writeb(regs, MUSB_DEVCTL, devctl);
}
@@ -1007,8 +1034,6 @@ static void musb_shutdown(struct platform_device *pdev)
musb_generic_disable(musb);
spin_unlock_irqrestore(&musb->lock, flags);
- if (!is_otg_enabled(musb) && is_host_enabled(musb))
- usb_remove_hcd(musb_to_hcd(musb));
musb_writeb(musb->mregs, MUSB_DEVCTL, 0);
musb_platform_exit(musb);
@@ -1302,7 +1327,7 @@ done:
if (offset < 0) {
pr_debug("%s: mem overrun, ep %d\n",
musb_driver_name, epn);
- return -EINVAL;
+ return offset;
}
epn++;
musb->nr_endpoints = max(epn, musb->nr_endpoints);
@@ -1330,7 +1355,7 @@ static int __devinit ep_config_from_hw(struct musb *musb)
{
u8 epnum = 0;
struct musb_hw_ep *hw_ep;
- void *mbase = musb->mregs;
+ void __iomem *mbase = musb->mregs;
int ret = 0;
dev_dbg(musb->controller, "<== static silicon ep config\n");
@@ -1571,13 +1596,10 @@ irqreturn_t musb_interrupt(struct musb *musb)
/* musb_ep_select(musb->mregs, ep_num); */
/* REVISIT just retval = ep->rx_irq(...) */
retval = IRQ_HANDLED;
- if (devctl & MUSB_DEVCTL_HM) {
- if (is_host_capable())
- musb_host_rx(musb, ep_num);
- } else {
- if (is_peripheral_capable())
- musb_g_rx(musb, ep_num);
- }
+ if (devctl & MUSB_DEVCTL_HM)
+ musb_host_rx(musb, ep_num);
+ else
+ musb_g_rx(musb, ep_num);
}
reg >>= 1;
@@ -1592,13 +1614,10 @@ irqreturn_t musb_interrupt(struct musb *musb)
/* musb_ep_select(musb->mregs, ep_num); */
/* REVISIT just retval |= ep->tx_irq(...) */
retval = IRQ_HANDLED;
- if (devctl & MUSB_DEVCTL_HM) {
- if (is_host_capable())
- musb_host_tx(musb, ep_num);
- } else {
- if (is_peripheral_capable())
- musb_g_tx(musb, ep_num);
- }
+ if (devctl & MUSB_DEVCTL_HM)
+ musb_host_tx(musb, ep_num);
+ else
+ musb_g_tx(musb, ep_num);
}
reg >>= 1;
ep_num++;
@@ -1634,22 +1653,16 @@ void musb_dma_completion(struct musb *musb, u8 epnum, u8 transmit)
} else {
/* endpoints 1..15 */
if (transmit) {
- if (devctl & MUSB_DEVCTL_HM) {
- if (is_host_capable())
- musb_host_tx(musb, epnum);
- } else {
- if (is_peripheral_capable())
- musb_g_tx(musb, epnum);
- }
+ if (devctl & MUSB_DEVCTL_HM)
+ musb_host_tx(musb, epnum);
+ else
+ musb_g_tx(musb, epnum);
} else {
/* receive */
- if (devctl & MUSB_DEVCTL_HM) {
- if (is_host_capable())
- musb_host_rx(musb, epnum);
- } else {
- if (is_peripheral_capable())
- musb_g_rx(musb, epnum);
- }
+ if (devctl & MUSB_DEVCTL_HM)
+ musb_host_rx(musb, epnum);
+ else
+ musb_g_rx(musb, epnum);
}
}
}
@@ -1785,10 +1798,9 @@ static const struct attribute_group musb_attr_group = {
static void musb_irq_work(struct work_struct *data)
{
struct musb *musb = container_of(data, struct musb, irq_work);
- static int old_state;
- if (musb->xceiv->state != old_state) {
- old_state = musb->xceiv->state;
+ if (musb->xceiv->state != musb->xceiv_old_state) {
+ musb->xceiv_old_state = musb->xceiv->state;
sysfs_notify(&musb->controller->kobj, NULL, "mode");
}
}
@@ -1862,15 +1874,15 @@ static void musb_free(struct musb *musb)
dma_controller_destroy(c);
}
- kfree(musb);
+ usb_put_hcd(musb_to_hcd(musb));
}
/*
* Perform generic per-controller initialization.
*
- * @pDevice: the controller (already clocked, etc)
- * @nIrq: irq
- * @mregs: virtual address of controller registers,
+ * @dev: the controller (already clocked, etc)
+ * @nIrq: IRQ number
+ * @ctrl: virtual address of controller registers,
* not yet corrected for platform-specific offsets
*/
static int __devinit
@@ -1879,6 +1891,7 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
int status;
struct musb *musb;
struct musb_hdrc_platform_data *plat = dev->platform_data;
+ struct usb_hcd *hcd;
/* The driver might handle more features than the board; OK.
* Fail when the board needs a feature that's not enabled.
@@ -1901,7 +1914,6 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
pm_runtime_enable(musb->controller);
spin_lock_init(&musb->lock);
- musb->board_mode = plat->mode;
musb->board_set_power = plat->set_power;
musb->min_power = plat->min_power;
musb->ops = plat->platform_ops;
@@ -1972,7 +1984,7 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
goto fail3;
}
musb->nIrq = nIrq;
-/* FIXME this handles wakeup irqs wrong */
+ /* FIXME this handles wakeup irqs wrong */
if (enable_irq_wake(nIrq) == 0) {
musb->irq_wake = 1;
device_init_wakeup(dev, 1);
@@ -1981,58 +1993,25 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
}
/* host side needs more setup */
- if (is_host_enabled(musb)) {
- struct usb_hcd *hcd = musb_to_hcd(musb);
-
- otg_set_host(musb->xceiv->otg, &hcd->self);
-
- if (is_otg_enabled(musb))
- hcd->self.otg_port = 1;
- musb->xceiv->otg->host = &hcd->self;
- hcd->power_budget = 2 * (plat->power ? : 250);
-
- /* program PHY to use external vBus if required */
- if (plat->extvbus) {
- u8 busctl = musb_read_ulpi_buscontrol(musb->mregs);
- busctl |= MUSB_ULPI_USE_EXTVBUS;
- musb_write_ulpi_buscontrol(musb->mregs, busctl);
- }
+ hcd = musb_to_hcd(musb);
+ otg_set_host(musb->xceiv->otg, &hcd->self);
+ hcd->self.otg_port = 1;
+ musb->xceiv->otg->host = &hcd->self;
+ hcd->power_budget = 2 * (plat->power ? : 250);
+
+ /* program PHY to use external vBus if required */
+ if (plat->extvbus) {
+ u8 busctl = musb_read_ulpi_buscontrol(musb->mregs);
+ busctl |= MUSB_ULPI_USE_EXTVBUS;
+ musb_write_ulpi_buscontrol(musb->mregs, busctl);
}
- /* For the host-only role, we can activate right away.
- * (We expect the ID pin to be forcibly grounded!!)
- * Otherwise, wait till the gadget driver hooks up.
- */
- if (!is_otg_enabled(musb) && is_host_enabled(musb)) {
- struct usb_hcd *hcd = musb_to_hcd(musb);
-
- MUSB_HST_MODE(musb);
- musb->xceiv->otg->default_a = 1;
- musb->xceiv->state = OTG_STATE_A_IDLE;
-
- status = usb_add_hcd(musb_to_hcd(musb), 0, 0);
-
- hcd->self.uses_pio_for_control = 1;
- dev_dbg(musb->controller, "%s mode, status %d, devctl %02x %c\n",
- "HOST", status,
- musb_readb(musb->mregs, MUSB_DEVCTL),
- (musb_readb(musb->mregs, MUSB_DEVCTL)
- & MUSB_DEVCTL_BDEVICE
- ? 'B' : 'A'));
-
- } else /* peripheral is enabled */ {
- MUSB_DEV_MODE(musb);
- musb->xceiv->otg->default_a = 0;
- musb->xceiv->state = OTG_STATE_B_IDLE;
-
- status = musb_gadget_setup(musb);
+ MUSB_DEV_MODE(musb);
+ musb->xceiv->otg->default_a = 0;
+ musb->xceiv->state = OTG_STATE_B_IDLE;
- dev_dbg(musb->controller, "%s mode, status %d, dev%02x\n",
- is_otg_enabled(musb) ? "OTG" : "PERIPHERAL",
- status,
- musb_readb(musb->mregs, MUSB_DEVCTL));
+ status = musb_gadget_setup(musb);
- }
if (status < 0)
goto fail3;
@@ -2048,28 +2027,13 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
pm_runtime_put(musb->controller);
- dev_info(dev, "USB %s mode controller at %p using %s, IRQ %d\n",
- ({char *s;
- switch (musb->board_mode) {
- case MUSB_HOST: s = "Host"; break;
- case MUSB_PERIPHERAL: s = "Peripheral"; break;
- default: s = "OTG"; break;
- }; s; }),
- ctrl,
- (is_dma_capable() && musb->dma_controller)
- ? "DMA" : "PIO",
- musb->nIrq);
-
return 0;
fail5:
musb_exit_debugfs(musb);
fail4:
- if (!is_otg_enabled(musb) && is_host_enabled(musb))
- usb_remove_hcd(musb_to_hcd(musb));
- else
- musb_gadget_cleanup(musb);
+ musb_gadget_cleanup(musb);
fail3:
pm_runtime_put_sync(musb->controller);
@@ -2096,11 +2060,6 @@ fail0:
/* all implementations (PCI bridge to FPGA, VLYNQ, etc) should just
* bridge to a platform device; this driver then suffices.
*/
-
-#ifndef CONFIG_MUSB_PIO_ONLY
-static u64 *orig_dma_mask;
-#endif
-
static int __devinit musb_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@@ -2119,10 +2078,6 @@ static int __devinit musb_probe(struct platform_device *pdev)
return -ENOMEM;
}
-#ifndef CONFIG_MUSB_PIO_ONLY
- /* clobbered by use_dma=n */
- orig_dma_mask = dev->dma_mask;
-#endif
status = musb_init_controller(dev, irq, base);
if (status < 0)
iounmap(base);
@@ -2132,7 +2087,8 @@ static int __devinit musb_probe(struct platform_device *pdev)
static int __devexit musb_remove(struct platform_device *pdev)
{
- struct musb *musb = dev_to_musb(&pdev->dev);
+ struct device *dev = &pdev->dev;
+ struct musb *musb = dev_to_musb(dev);
void __iomem *ctrl_base = musb->ctrl_base;
/* this gets called on rmmod.
@@ -2145,9 +2101,9 @@ static int __devexit musb_remove(struct platform_device *pdev)
musb_free(musb);
iounmap(ctrl_base);
- device_init_wakeup(&pdev->dev, 0);
+ device_init_wakeup(dev, 0);
#ifndef CONFIG_MUSB_PIO_ONLY
- pdev->dev.dma_mask = orig_dma_mask;
+ dma_set_mask(dev, *dev->parent->dma_mask);
#endif
return 0;
}
@@ -2160,11 +2116,9 @@ static void musb_save_context(struct musb *musb)
void __iomem *musb_base = musb->mregs;
void __iomem *epio;
- if (is_host_enabled(musb)) {
- musb->context.frame = musb_readw(musb_base, MUSB_FRAME);
- musb->context.testmode = musb_readb(musb_base, MUSB_TESTMODE);
- musb->context.busctl = musb_read_ulpi_buscontrol(musb->mregs);
- }
+ musb->context.frame = musb_readw(musb_base, MUSB_FRAME);
+ musb->context.testmode = musb_readb(musb_base, MUSB_TESTMODE);
+ musb->context.busctl = musb_read_ulpi_buscontrol(musb->mregs);
musb->context.power = musb_readb(musb_base, MUSB_POWER);
musb->context.intrtxe = musb_readw(musb_base, MUSB_INTRTXE);
musb->context.intrrxe = musb_readw(musb_base, MUSB_INTRRXE);
@@ -2203,30 +2157,29 @@ static void musb_save_context(struct musb *musb)
musb->context.index_regs[i].rxfifosz =
musb_read_rxfifosz(musb_base);
}
- if (is_host_enabled(musb)) {
- musb->context.index_regs[i].txtype =
- musb_readb(epio, MUSB_TXTYPE);
- musb->context.index_regs[i].txinterval =
- musb_readb(epio, MUSB_TXINTERVAL);
- musb->context.index_regs[i].rxtype =
- musb_readb(epio, MUSB_RXTYPE);
- musb->context.index_regs[i].rxinterval =
- musb_readb(epio, MUSB_RXINTERVAL);
-
- musb->context.index_regs[i].txfunaddr =
- musb_read_txfunaddr(musb_base, i);
- musb->context.index_regs[i].txhubaddr =
- musb_read_txhubaddr(musb_base, i);
- musb->context.index_regs[i].txhubport =
- musb_read_txhubport(musb_base, i);
-
- musb->context.index_regs[i].rxfunaddr =
- musb_read_rxfunaddr(musb_base, i);
- musb->context.index_regs[i].rxhubaddr =
- musb_read_rxhubaddr(musb_base, i);
- musb->context.index_regs[i].rxhubport =
- musb_read_rxhubport(musb_base, i);
- }
+
+ musb->context.index_regs[i].txtype =
+ musb_readb(epio, MUSB_TXTYPE);
+ musb->context.index_regs[i].txinterval =
+ musb_readb(epio, MUSB_TXINTERVAL);
+ musb->context.index_regs[i].rxtype =
+ musb_readb(epio, MUSB_RXTYPE);
+ musb->context.index_regs[i].rxinterval =
+ musb_readb(epio, MUSB_RXINTERVAL);
+
+ musb->context.index_regs[i].txfunaddr =
+ musb_read_txfunaddr(musb_base, i);
+ musb->context.index_regs[i].txhubaddr =
+ musb_read_txhubaddr(musb_base, i);
+ musb->context.index_regs[i].txhubport =
+ musb_read_txhubport(musb_base, i);
+
+ musb->context.index_regs[i].rxfunaddr =
+ musb_read_rxfunaddr(musb_base, i);
+ musb->context.index_regs[i].rxhubaddr =
+ musb_read_rxhubaddr(musb_base, i);
+ musb->context.index_regs[i].rxhubport =
+ musb_read_rxhubport(musb_base, i);
}
}
@@ -2237,11 +2190,9 @@ static void musb_restore_context(struct musb *musb)
void __iomem *ep_target_regs;
void __iomem *epio;
- if (is_host_enabled(musb)) {
- musb_writew(musb_base, MUSB_FRAME, musb->context.frame);
- musb_writeb(musb_base, MUSB_TESTMODE, musb->context.testmode);
- musb_write_ulpi_buscontrol(musb->mregs, musb->context.busctl);
- }
+ musb_writew(musb_base, MUSB_FRAME, musb->context.frame);
+ musb_writeb(musb_base, MUSB_TESTMODE, musb->context.testmode);
+ musb_write_ulpi_buscontrol(musb->mregs, musb->context.busctl);
musb_writeb(musb_base, MUSB_POWER, musb->context.power);
musb_writew(musb_base, MUSB_INTRTXE, musb->context.intrtxe);
musb_writew(musb_base, MUSB_INTRRXE, musb->context.intrrxe);
@@ -2280,33 +2231,31 @@ static void musb_restore_context(struct musb *musb)
musb->context.index_regs[i].rxfifoadd);
}
- if (is_host_enabled(musb)) {
- musb_writeb(epio, MUSB_TXTYPE,
+ musb_writeb(epio, MUSB_TXTYPE,
musb->context.index_regs[i].txtype);
- musb_writeb(epio, MUSB_TXINTERVAL,
+ musb_writeb(epio, MUSB_TXINTERVAL,
musb->context.index_regs[i].txinterval);
- musb_writeb(epio, MUSB_RXTYPE,
+ musb_writeb(epio, MUSB_RXTYPE,
musb->context.index_regs[i].rxtype);
- musb_writeb(epio, MUSB_RXINTERVAL,
+ musb_writeb(epio, MUSB_RXINTERVAL,
- musb->context.index_regs[i].rxinterval);
- musb_write_txfunaddr(musb_base, i,
+ musb->context.index_regs[i].rxinterval);
+ musb_write_txfunaddr(musb_base, i,
musb->context.index_regs[i].txfunaddr);
- musb_write_txhubaddr(musb_base, i,
+ musb_write_txhubaddr(musb_base, i,
musb->context.index_regs[i].txhubaddr);
- musb_write_txhubport(musb_base, i,
+ musb_write_txhubport(musb_base, i,
musb->context.index_regs[i].txhubport);
- ep_target_regs =
- musb_read_target_reg_base(i, musb_base);
+ ep_target_regs =
+ musb_read_target_reg_base(i, musb_base);
- musb_write_rxfunaddr(ep_target_regs,
+ musb_write_rxfunaddr(ep_target_regs,
musb->context.index_regs[i].rxfunaddr);
- musb_write_rxhubaddr(ep_target_regs,
+ musb_write_rxhubaddr(ep_target_regs,
musb->context.index_regs[i].rxhubaddr);
- musb_write_rxhubport(ep_target_regs,
+ musb_write_rxhubport(ep_target_regs,
musb->context.index_regs[i].rxhubport);
- }
}
musb_writeb(musb_base, MUSB_INDEX, musb->context.index);
}
diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h
index 586105b55a7c..c158aacd6de8 100644
--- a/drivers/usb/musb/musb_core.h
+++ b/drivers/usb/musb/musb_core.h
@@ -71,10 +71,6 @@ struct musb_ep;
#include <linux/usb/hcd.h>
#include "musb_host.h"
-#define is_peripheral_enabled(musb) ((musb)->board_mode != MUSB_HOST)
-#define is_host_enabled(musb) ((musb)->board_mode != MUSB_PERIPHERAL)
-#define is_otg_enabled(musb) ((musb)->board_mode == MUSB_OTG)
-
/* NOTE: otg and peripheral-only state machines start at B_IDLE.
* OTG or host-only go to A_IDLE when ID is sensed.
*/
@@ -88,8 +84,6 @@ struct musb_ep;
/****************************** PERIPHERAL ROLE *****************************/
-#define is_peripheral_capable() (1)
-
extern irqreturn_t musb_g_ep0_irq(struct musb *);
extern void musb_g_tx(struct musb *, u8);
extern void musb_g_rx(struct musb *, u8);
@@ -101,8 +95,6 @@ extern void musb_g_disconnect(struct musb *);
/****************************** HOST ROLE ***********************************/
-#define is_host_capable() (1)
-
extern irqreturn_t musb_h_ep0_irq(struct musb *);
extern void musb_host_tx(struct musb *, u8);
extern void musb_host_rx(struct musb *, u8);
@@ -376,7 +368,6 @@ struct musb {
u16 epmask;
u8 nr_endpoints;
- u8 board_mode; /* enum musb_mode */
int (*board_set_power)(int state);
u8 min_power; /* vbus for periph, in mA/2 */
@@ -446,6 +437,10 @@ struct musb {
#ifdef MUSB_CONFIG_PROC_FS
struct proc_dir_entry *proc_entry;
#endif
+ int xceiv_old_state;
+#ifdef CONFIG_DEBUG_FS
+ struct dentry *debugfs_root;
+#endif
};
static inline struct musb *gadget_to_musb(struct usb_gadget *g)
@@ -484,7 +479,7 @@ static inline void musb_configure_ep0(struct musb *musb)
static inline int musb_read_fifosize(struct musb *musb,
struct musb_hw_ep *hw_ep, u8 epnum)
{
- void *mbase = musb->mregs;
+ void __iomem *mbase = musb->mregs;
u8 reg = 0;
/* read from core using indexed model */
@@ -526,6 +521,8 @@ extern const char musb_driver_name[];
extern void musb_start(struct musb *musb);
extern void musb_stop(struct musb *musb);
+extern int musb_get_id(struct device *dev, gfp_t gfp_mask);
+extern void musb_put_id(struct device *dev, int id);
extern void musb_write_fifo(struct musb_hw_ep *ep, u16 len, const u8 *src);
extern void musb_read_fifo(struct musb_hw_ep *ep, u16 len, u8 *dst);
diff --git a/drivers/usb/musb/musb_debugfs.c b/drivers/usb/musb/musb_debugfs.c
index 40a37c91cc10..1d6e8af94c06 100644
--- a/drivers/usb/musb/musb_debugfs.c
+++ b/drivers/usb/musb/musb_debugfs.c
@@ -103,8 +103,6 @@ static const struct musb_register_map musb_regmap[] = {
{ } /* Terminating Entry */
};
-static struct dentry *musb_debugfs_root;
-
static int musb_regdump_show(struct seq_file *s, void *unused)
{
struct musb *musb = s->private;
@@ -241,7 +239,7 @@ int __devinit musb_init_debugfs(struct musb *musb)
struct dentry *file;
int ret;
- root = debugfs_create_dir("musb", NULL);
+ root = debugfs_create_dir(dev_name(musb->controller), NULL);
if (!root) {
ret = -ENOMEM;
goto err0;
@@ -261,7 +259,7 @@ int __devinit musb_init_debugfs(struct musb *musb)
goto err1;
}
- musb_debugfs_root = root;
+ musb->debugfs_root = root;
return 0;
@@ -274,5 +272,5 @@ err0:
void /* __init_or_exit */ musb_exit_debugfs(struct musb *musb)
{
- debugfs_remove_recursive(musb_debugfs_root);
+ debugfs_remove_recursive(musb->debugfs_root);
}
diff --git a/drivers/usb/musb/musb_dma.h b/drivers/usb/musb/musb_dma.h
index 3a97c4e2d4f5..24d39210d4ab 100644
--- a/drivers/usb/musb/musb_dma.h
+++ b/drivers/usb/musb/musb_dma.h
@@ -178,7 +178,7 @@ struct dma_controller {
extern void musb_dma_completion(struct musb *musb, u8 epnum, u8 transmit);
-extern struct dma_controller *__init
+extern struct dma_controller *__devinit
dma_controller_create(struct musb *, void __iomem *);
extern void dma_controller_destroy(struct dma_controller *);
diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c
index 494772fc9e23..444346e1e10d 100644
--- a/drivers/usb/musb/musb_dsps.c
+++ b/drivers/usb/musb/musb_dsps.c
@@ -31,11 +31,13 @@
#include <linux/init.h>
#include <linux/io.h>
+#include <linux/of.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
#include <linux/pm_runtime.h>
#include <linux/module.h>
+#include <linux/usb/nop-usb-xceiv.h>
#include <linux/of.h>
#include <linux/of_device.h>
@@ -45,6 +47,10 @@
#include "musb_core.h"
+#ifdef CONFIG_OF
+static const struct of_device_id musb_dsps_of_match[];
+#endif
+
/**
* avoid using musb_readx()/musb_writex() as glue layer should not be
* dependent on musb core layer symbols.
@@ -105,6 +111,8 @@ struct dsps_musb_wrapper {
/* miscellaneous stuff */
u32 musb_core_offset;
u8 poll_seconds;
+ /* number of musb instances */
+ u8 instances;
};
/**
@@ -112,9 +120,10 @@ struct dsps_musb_wrapper {
*/
struct dsps_glue {
struct device *dev;
- struct platform_device *musb; /* child musb pdev */
+ struct platform_device *musb[2]; /* child musb pdev */
const struct dsps_musb_wrapper *wrp; /* wrapper register offsets */
- struct timer_list timer; /* otg_workaround timer */
+ struct timer_list timer[2]; /* otg_workaround timer */
+ unsigned long last_timer[2]; /* last timer data for each instance */
};
/**
@@ -137,9 +146,8 @@ static void dsps_musb_enable(struct musb *musb)
dsps_writel(reg_base, wrp->epintr_set, epmask);
dsps_writel(reg_base, wrp->coreintr_set, coremask);
/* Force the DRVVBUS IRQ so we can start polling for ID change. */
- if (is_otg_enabled(musb))
- dsps_writel(reg_base, wrp->coreintr_set,
- (1 << wrp->drvvbus) << wrp->usb_shift);
+ dsps_writel(reg_base, wrp->coreintr_set,
+ (1 << wrp->drvvbus) << wrp->usb_shift);
}
/**
@@ -165,8 +173,8 @@ static void otg_timer(unsigned long _musb)
struct musb *musb = (void *)_musb;
void __iomem *mregs = musb->mregs;
struct device *dev = musb->controller;
- struct platform_device *pdev = to_platform_device(dev->parent);
- struct dsps_glue *glue = platform_get_drvdata(pdev);
+ struct platform_device *pdev = to_platform_device(dev);
+ struct dsps_glue *glue = dev_get_drvdata(dev->parent);
const struct dsps_musb_wrapper *wrp = glue->wrp;
u8 devctl;
unsigned long flags;
@@ -200,12 +208,9 @@ static void otg_timer(unsigned long _musb)
MUSB_INTR_VBUSERROR << wrp->usb_shift);
break;
case OTG_STATE_B_IDLE:
- if (!is_peripheral_enabled(musb))
- break;
-
devctl = dsps_readb(mregs, MUSB_DEVCTL);
if (devctl & MUSB_DEVCTL_BDEVICE)
- mod_timer(&glue->timer,
+ mod_timer(&glue->timer[pdev->id],
jiffies + wrp->poll_seconds * HZ);
else
musb->xceiv->state = OTG_STATE_A_IDLE;
@@ -219,12 +224,8 @@ static void otg_timer(unsigned long _musb)
static void dsps_musb_try_idle(struct musb *musb, unsigned long timeout)
{
struct device *dev = musb->controller;
- struct platform_device *pdev = to_platform_device(dev->parent);
- struct dsps_glue *glue = platform_get_drvdata(pdev);
- static unsigned long last_timer;
-
- if (!is_otg_enabled(musb))
- return;
+ struct platform_device *pdev = to_platform_device(dev);
+ struct dsps_glue *glue = dev_get_drvdata(dev->parent);
if (timeout == 0)
timeout = jiffies + msecs_to_jiffies(3);
@@ -234,22 +235,23 @@ static void dsps_musb_try_idle(struct musb *musb, unsigned long timeout)
musb->xceiv->state == OTG_STATE_A_WAIT_BCON)) {
dev_dbg(musb->controller, "%s active, deleting timer\n",
otg_state_string(musb->xceiv->state));
- del_timer(&glue->timer);
- last_timer = jiffies;
+ del_timer(&glue->timer[pdev->id]);
+ glue->last_timer[pdev->id] = jiffies;
return;
}
- if (time_after(last_timer, timeout) && timer_pending(&glue->timer)) {
+ if (time_after(glue->last_timer[pdev->id], timeout) &&
+ timer_pending(&glue->timer[pdev->id])) {
dev_dbg(musb->controller,
"Longer idle timer already pending, ignoring...\n");
return;
}
- last_timer = timeout;
+ glue->last_timer[pdev->id] = timeout;
dev_dbg(musb->controller, "%s inactive, starting idle timer for %u ms\n",
otg_state_string(musb->xceiv->state),
jiffies_to_msecs(timeout - jiffies));
- mod_timer(&glue->timer, timeout);
+ mod_timer(&glue->timer[pdev->id], timeout);
}
static irqreturn_t dsps_interrupt(int irq, void *hci)
@@ -257,8 +259,8 @@ static irqreturn_t dsps_interrupt(int irq, void *hci)
struct musb *musb = hci;
void __iomem *reg_base = musb->ctrl_base;
struct device *dev = musb->controller;
- struct platform_device *pdev = to_platform_device(dev->parent);
- struct dsps_glue *glue = platform_get_drvdata(pdev);
+ struct platform_device *pdev = to_platform_device(dev);
+ struct dsps_glue *glue = dev_get_drvdata(dev->parent);
const struct dsps_musb_wrapper *wrp = glue->wrp;
unsigned long flags;
irqreturn_t ret = IRQ_NONE;
@@ -293,7 +295,7 @@ static irqreturn_t dsps_interrupt(int irq, void *hci)
* value but DEVCTL.BDEVICE is invalid without DEVCTL.SESSION set.
* Also, DRVVBUS pulses for SRP (but not at 5V) ...
*/
- if ((usbintr & MUSB_INTR_BABBLE) && is_host_enabled(musb))
+ if (usbintr & MUSB_INTR_BABBLE)
pr_info("CAUTION: musb: Babble Interrupt Occured\n");
if (usbintr & ((1 << wrp->drvvbus) << wrp->usb_shift)) {
@@ -302,8 +304,7 @@ static irqreturn_t dsps_interrupt(int irq, void *hci)
u8 devctl = dsps_readb(mregs, MUSB_DEVCTL);
int err;
- err = is_host_enabled(musb) && (musb->int_usb &
- MUSB_INTR_VBUSERROR);
+ err = musb->int_usb & MUSB_INTR_VBUSERROR;
if (err) {
/*
* The Mentor core doesn't debounce VBUS as needed
@@ -318,15 +319,15 @@ static irqreturn_t dsps_interrupt(int irq, void *hci)
*/
musb->int_usb &= ~MUSB_INTR_VBUSERROR;
musb->xceiv->state = OTG_STATE_A_WAIT_VFALL;
- mod_timer(&glue->timer,
+ mod_timer(&glue->timer[pdev->id],
jiffies + wrp->poll_seconds * HZ);
WARNING("VBUS error workaround (delay coming)\n");
- } else if (is_host_enabled(musb) && drvvbus) {
+ } else if (drvvbus) {
musb->is_active = 1;
MUSB_HST_MODE(musb);
musb->xceiv->otg->default_a = 1;
musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
- del_timer(&glue->timer);
+ del_timer(&glue->timer[pdev->id]);
} else {
musb->is_active = 0;
MUSB_DEV_MODE(musb);
@@ -352,8 +353,9 @@ static irqreturn_t dsps_interrupt(int irq, void *hci)
dsps_writel(reg_base, wrp->eoi, 1);
/* Poll for ID change */
- if (is_otg_enabled(musb) && musb->xceiv->state == OTG_STATE_B_IDLE)
- mod_timer(&glue->timer, jiffies + wrp->poll_seconds * HZ);
+ if (musb->xceiv->state == OTG_STATE_B_IDLE)
+ mod_timer(&glue->timer[pdev->id],
+ jiffies + wrp->poll_seconds * HZ);
spin_unlock_irqrestore(&musb->lock, flags);
@@ -364,8 +366,8 @@ static int dsps_musb_init(struct musb *musb)
{
struct device *dev = musb->controller;
struct musb_hdrc_platform_data *plat = dev->platform_data;
- struct platform_device *pdev = to_platform_device(dev->parent);
- struct dsps_glue *glue = platform_get_drvdata(pdev);
+ struct platform_device *pdev = to_platform_device(dev);
+ struct dsps_glue *glue = dev_get_drvdata(dev->parent);
const struct dsps_musb_wrapper *wrp = glue->wrp;
struct omap_musb_board_data *data = plat->board_data;
void __iomem *reg_base = musb->ctrl_base;
@@ -375,8 +377,7 @@ static int dsps_musb_init(struct musb *musb)
/* mentor core register starts at offset of 0x400 from musb base */
musb->mregs += wrp->musb_core_offset;
- /* NOP driver needs change if supporting dual instance */
- usb_nop_xceiv_register();
+ /* Get the NOP PHY */
musb->xceiv = usb_get_phy(USB_PHY_TYPE_USB2);
if (IS_ERR_OR_NULL(musb->xceiv))
return -ENODEV;
@@ -388,8 +389,7 @@ static int dsps_musb_init(struct musb *musb)
goto err0;
}
- if (is_host_enabled(musb))
- setup_timer(&glue->timer, otg_timer, (unsigned long) musb);
+ setup_timer(&glue->timer[pdev->id], otg_timer, (unsigned long) musb);
/* Reset the musb */
dsps_writel(reg_base, wrp->control, (1 << wrp->reset));
@@ -420,11 +420,10 @@ static int dsps_musb_exit(struct musb *musb)
struct device *dev = musb->controller;
struct musb_hdrc_platform_data *plat = dev->platform_data;
struct omap_musb_board_data *data = plat->board_data;
- struct platform_device *pdev = to_platform_device(dev->parent);
- struct dsps_glue *glue = platform_get_drvdata(pdev);
+ struct platform_device *pdev = to_platform_device(dev);
+ struct dsps_glue *glue = dev_get_drvdata(dev->parent);
- if (is_host_enabled(musb))
- del_timer_sync(&glue->timer);
+ del_timer_sync(&glue->timer[pdev->id]);
/* Shutdown the on-chip PHY and its PLL. */
if (data->set_phy_power)
@@ -454,11 +453,13 @@ static int __devinit dsps_create_musb_pdev(struct dsps_glue *glue, u8 id)
struct device *dev = glue->dev;
struct platform_device *pdev = to_platform_device(dev);
struct musb_hdrc_platform_data *pdata = dev->platform_data;
+ struct device_node *np = pdev->dev.of_node;
+ struct musb_hdrc_config *config;
struct platform_device *musb;
struct resource *res;
struct resource resources[2];
char res_name[10];
- int ret;
+ int ret, musbid;
/* get memory resource */
sprintf(res_name, "musb%d", id);
@@ -483,62 +484,107 @@ static int __devinit dsps_create_musb_pdev(struct dsps_glue *glue, u8 id)
resources[1] = *res;
resources[1].name = "mc";
+ /* get the musb id */
+ musbid = musb_get_id(dev, GFP_KERNEL);
+ if (musbid < 0) {
+ dev_err(dev, "failed to allocate musb id\n");
+ ret = -ENOMEM;
+ goto err0;
+ }
/* allocate the child platform device */
- musb = platform_device_alloc("musb-hdrc", -1);
+ musb = platform_device_alloc("musb-hdrc", musbid);
if (!musb) {
dev_err(dev, "failed to allocate musb device\n");
ret = -ENOMEM;
- goto err0;
+ goto err1;
}
+ musb->id = musbid;
musb->dev.parent = dev;
musb->dev.dma_mask = &musb_dmamask;
musb->dev.coherent_dma_mask = musb_dmamask;
- glue->musb = musb;
-
- pdata->platform_ops = &dsps_ops;
+ glue->musb[id] = musb;
ret = platform_device_add_resources(musb, resources, 2);
if (ret) {
dev_err(dev, "failed to add resources\n");
- goto err1;
+ goto err2;
}
+ if (np) {
+ pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata) {
+ dev_err(&pdev->dev,
+ "failed to allocate musb platfrom data\n");
+ ret = -ENOMEM;
+ goto err2;
+ }
+
+ config = devm_kzalloc(&pdev->dev, sizeof(*config), GFP_KERNEL);
+ if (!config) {
+ dev_err(&pdev->dev,
+ "failed to allocate musb hdrc config\n");
+ goto err2;
+ }
+
+ of_property_read_u32(np, "num-eps", (u32 *)&config->num_eps);
+ of_property_read_u32(np, "ram-bits", (u32 *)&config->ram_bits);
+ sprintf(res_name, "port%d-mode", id);
+ of_property_read_u32(np, res_name, (u32 *)&pdata->mode);
+ of_property_read_u32(np, "power", (u32 *)&pdata->power);
+ config->multipoint = of_property_read_bool(np, "multipoint");
+
+ pdata->config = config;
+ }
+
+ pdata->platform_ops = &dsps_ops;
+
ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
if (ret) {
dev_err(dev, "failed to add platform_data\n");
- goto err1;
+ goto err2;
}
ret = platform_device_add(musb);
if (ret) {
dev_err(dev, "failed to register musb device\n");
- goto err1;
+ goto err2;
}
return 0;
-err1:
+err2:
platform_device_put(musb);
+err1:
+ musb_put_id(dev, musbid);
err0:
return ret;
}
-static void __devexit dsps_delete_musb_pdev(struct dsps_glue *glue)
+static void dsps_delete_musb_pdev(struct dsps_glue *glue, u8 id)
{
- platform_device_del(glue->musb);
- platform_device_put(glue->musb);
+ musb_put_id(glue->dev, glue->musb[id]->id);
+ platform_device_del(glue->musb[id]);
+ platform_device_put(glue->musb[id]);
}
static int __devinit dsps_probe(struct platform_device *pdev)
{
- const struct platform_device_id *id = platform_get_device_id(pdev);
- const struct dsps_musb_wrapper *wrp =
- (struct dsps_musb_wrapper *)id->driver_data;
+ struct device_node *np = pdev->dev.of_node;
+ const struct of_device_id *match;
+ const struct dsps_musb_wrapper *wrp;
struct dsps_glue *glue;
struct resource *iomem;
- int ret;
+ int ret, i;
+
+ match = of_match_node(musb_dsps_of_match, np);
+ if (!match) {
+ dev_err(&pdev->dev, "fail to get matching of_match struct\n");
+ ret = -EINVAL;
+ goto err0;
+ }
+ wrp = match->data;
/* allocate glue */
glue = kzalloc(sizeof(*glue), GFP_KERNEL);
@@ -575,11 +621,16 @@ static int __devinit dsps_probe(struct platform_device *pdev)
goto err2;
}
- /* create the child platform device for first instances of musb */
- ret = dsps_create_musb_pdev(glue, 0);
- if (ret != 0) {
- dev_err(&pdev->dev, "failed to create child pdev\n");
- goto err3;
+ /* create the child platform device for all instances of musb */
+ for (i = 0; i < wrp->instances ; i++) {
+ ret = dsps_create_musb_pdev(glue, i);
+ if (ret != 0) {
+ dev_err(&pdev->dev, "failed to create child pdev\n");
+ /* release resources of previously created instances */
+ for (i--; i >= 0 ; i--)
+ dsps_delete_musb_pdev(glue, i);
+ goto err3;
+ }
}
return 0;
@@ -597,9 +648,12 @@ err0:
static int __devexit dsps_remove(struct platform_device *pdev)
{
struct dsps_glue *glue = platform_get_drvdata(pdev);
+ const struct dsps_musb_wrapper *wrp = glue->wrp;
+ int i;
/* delete the child platform device */
- dsps_delete_musb_pdev(glue);
+ for (i = 0; i < wrp->instances ; i++)
+ dsps_delete_musb_pdev(glue, i);
/* disable usbss clocks */
pm_runtime_put(&pdev->dev);
@@ -665,6 +719,7 @@ static const struct dsps_musb_wrapper ti81xx_driver_data __devinitconst = {
.rxep_bitmap = (0xfffe << 16),
.musb_core_offset = 0x400,
.poll_seconds = 2,
+ .instances = 2,
};
static const struct platform_device_id musb_dsps_id_table[] __devinitconst = {
@@ -676,13 +731,14 @@ static const struct platform_device_id musb_dsps_id_table[] __devinitconst = {
};
MODULE_DEVICE_TABLE(platform, musb_dsps_id_table);
+#ifdef CONFIG_OF
static const struct of_device_id musb_dsps_of_match[] __devinitconst = {
- { .compatible = "musb-ti81xx", },
- { .compatible = "ti,ti81xx-musb", },
- { .compatible = "ti,am335x-musb", },
+ { .compatible = "ti,musb-am33xx",
+ .data = (void *) &ti81xx_driver_data, },
{ },
};
MODULE_DEVICE_TABLE(of, musb_dsps_of_match);
+#endif
static struct platform_driver dsps_usbss_driver = {
.probe = dsps_probe,
@@ -690,7 +746,7 @@ static struct platform_driver dsps_usbss_driver = {
.driver = {
.name = "musb-dsps",
.pm = &dsps_pm_ops,
- .of_match_table = musb_dsps_of_match,
+ .of_match_table = of_match_ptr(musb_dsps_of_match),
},
.id_table = musb_dsps_id_table,
};
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index f7194cf65aba..d0b87e7b4abf 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -373,7 +373,7 @@ static void txstate(struct musb *musb, struct musb_request *req)
request_size = min_t(size_t, request->length - request->actual,
musb_ep->dma->max_len);
- use_dma = (request->dma != DMA_ADDR_INVALID);
+ use_dma = (request->dma != DMA_ADDR_INVALID && request_size);
/* MUSB_TXCSR_P_ISO is still set correctly */
@@ -644,8 +644,8 @@ static void rxstate(struct musb *musb, struct musb_request *req)
struct usb_request *request = &req->request;
struct musb_ep *musb_ep;
void __iomem *epio = musb->endpoints[epnum].regs;
- unsigned fifo_count = 0;
- u16 len;
+ unsigned len = 0;
+ u16 fifo_count;
u16 csr = musb_readw(epio, MUSB_RXCSR);
struct musb_hw_ep *hw_ep = &musb->endpoints[epnum];
u8 use_mode_1;
@@ -655,7 +655,7 @@ static void rxstate(struct musb *musb, struct musb_request *req)
else
musb_ep = &hw_ep->ep_out;
- len = musb_ep->packet_sz;
+ fifo_count = musb_ep->packet_sz;
/* Check if EP is disabled */
if (!musb_ep->desc) {
@@ -704,15 +704,14 @@ static void rxstate(struct musb *musb, struct musb_request *req)
}
if (csr & MUSB_RXCSR_RXPKTRDY) {
- len = musb_readw(epio, MUSB_RXCOUNT);
+ fifo_count = musb_readw(epio, MUSB_RXCOUNT);
/*
- * Enable Mode 1 on RX transfers only when short_not_ok flag
- * is set. Currently short_not_ok flag is set only from
- * file_storage and f_mass_storage drivers
+ * use mode 1 only if we expect data of at least ep packet_sz
+ * and have not yet received a short packet
*/
-
- if (request->short_not_ok && len == musb_ep->packet_sz)
+ if ((request->length - request->actual >= musb_ep->packet_sz) &&
+ (fifo_count >= musb_ep->packet_sz))
use_mode_1 = 1;
else
use_mode_1 = 0;
@@ -723,31 +722,11 @@ static void rxstate(struct musb *musb, struct musb_request *req)
struct dma_controller *c;
struct dma_channel *channel;
int use_dma = 0;
+ int transfer_size;
c = musb->dma_controller;
channel = musb_ep->dma;
- /* We use DMA Req mode 0 in rx_csr, and DMA controller operates in
- * mode 0 only. So we do not get endpoint interrupts due to DMA
- * completion. We only get interrupts from DMA controller.
- *
- * We could operate in DMA mode 1 if we knew the size of the tranfer
- * in advance. For mass storage class, request->length = what the host
- * sends, so that'd work. But for pretty much everything else,
- * request->length is routinely more than what the host sends. For
- * most these gadgets, end of is signified either by a short packet,
- * or filling the last byte of the buffer. (Sending extra data in
- * that last pckate should trigger an overflow fault.) But in mode 1,
- * we don't get DMA completion interrupt for short packets.
- *
- * Theoretically, we could enable DMAReq irq (MUSB_RXCSR_DMAMODE = 1),
- * to get endpoint interrupt on every DMA req, but that didn't seem
- * to work reliably.
- *
- * REVISIT an updated g_file_storage can set req->short_not_ok, which
- * then becomes usable as a runtime "use mode 1" hint...
- */
-
/* Experimental: Mode1 works with mass storage use cases */
if (use_mode_1) {
csr |= MUSB_RXCSR_AUTOCLEAR;
@@ -764,35 +743,30 @@ static void rxstate(struct musb *musb, struct musb_request *req)
csr | MUSB_RXCSR_DMAMODE);
musb_writew(epio, MUSB_RXCSR, csr);
+ transfer_size = min(request->length - request->actual,
+ channel->max_len);
+ musb_ep->dma->desired_mode = 1;
+
} else {
if (!musb_ep->hb_mult &&
musb_ep->hw_ep->rx_double_buffered)
csr |= MUSB_RXCSR_AUTOCLEAR;
csr |= MUSB_RXCSR_DMAENAB;
musb_writew(epio, MUSB_RXCSR, csr);
- }
- if (request->actual < request->length) {
- int transfer_size = 0;
- if (use_mode_1) {
- transfer_size = min(request->length - request->actual,
- channel->max_len);
- musb_ep->dma->desired_mode = 1;
- } else {
- transfer_size = min(request->length - request->actual,
- (unsigned)len);
- musb_ep->dma->desired_mode = 0;
- }
-
- use_dma = c->channel_program(
- channel,
- musb_ep->packet_sz,
- channel->desired_mode,
- request->dma
- + request->actual,
- transfer_size);
+ transfer_size = min(request->length - request->actual,
+ (unsigned)fifo_count);
+ musb_ep->dma->desired_mode = 0;
}
+ use_dma = c->channel_program(
+ channel,
+ musb_ep->packet_sz,
+ channel->desired_mode,
+ request->dma
+ + request->actual,
+ transfer_size);
+
if (use_dma)
return;
}
@@ -808,8 +782,8 @@ static void rxstate(struct musb *musb, struct musb_request *req)
channel = musb_ep->dma;
/* In case first packet is short */
- if (len < musb_ep->packet_sz)
- transfer_size = len;
+ if (fifo_count < musb_ep->packet_sz)
+ transfer_size = fifo_count;
else if (request->short_not_ok)
transfer_size = min(request->length -
request->actual,
@@ -817,7 +791,7 @@ static void rxstate(struct musb *musb, struct musb_request *req)
else
transfer_size = min(request->length -
request->actual,
- (unsigned)len);
+ (unsigned)fifo_count);
csr &= ~MUSB_RXCSR_DMAMODE;
csr |= (MUSB_RXCSR_DMAENAB |
@@ -845,10 +819,10 @@ static void rxstate(struct musb *musb, struct musb_request *req)
}
#endif /* Mentor's DMA */
- fifo_count = request->length - request->actual;
+ len = request->length - request->actual;
dev_dbg(musb->controller, "%s OUT/RX pio fifo %d/%d, maxpacket %d\n",
musb_ep->end_point.name,
- len, fifo_count,
+ fifo_count, len,
musb_ep->packet_sz);
fifo_count = min_t(unsigned, len, fifo_count);
@@ -901,7 +875,8 @@ static void rxstate(struct musb *musb, struct musb_request *req)
}
/* reach the end or short packet detected */
- if (request->actual == request->length || len < musb_ep->packet_sz)
+ if (request->actual == request->length ||
+ fifo_count < musb_ep->packet_sz)
musb_g_giveback(musb_ep, request, 0);
}
@@ -1885,8 +1860,7 @@ int __devinit musb_gadget_setup(struct musb *musb)
musb->g.dev.release = musb_gadget_release;
musb->g.name = musb_driver_name;
- if (is_otg_enabled(musb))
- musb->g.is_otg = 1;
+ musb->g.is_otg = 1;
musb_g_init_endpoints(musb);
@@ -1932,11 +1906,14 @@ static int musb_gadget_start(struct usb_gadget *g,
{
struct musb *musb = gadget_to_musb(g);
struct usb_otg *otg = musb->xceiv->otg;
+ struct usb_hcd *hcd = musb_to_hcd(musb);
unsigned long flags;
- int retval = -EINVAL;
+ int retval = 0;
- if (driver->max_speed < USB_SPEED_HIGH)
- goto err0;
+ if (driver->max_speed < USB_SPEED_HIGH) {
+ retval = -EINVAL;
+ goto err;
+ }
pm_runtime_get_sync(musb->controller);
@@ -1950,49 +1927,30 @@ static int musb_gadget_start(struct usb_gadget *g,
otg_set_peripheral(otg, &musb->g);
musb->xceiv->state = OTG_STATE_B_IDLE;
-
- /*
- * FIXME this ignores the softconnect flag. Drivers are
- * allowed hold the peripheral inactive until for example
- * userspace hooks up printer hardware or DSP codecs, so
- * hosts only see fully functional devices.
- */
-
- if (!is_otg_enabled(musb))
- musb_start(musb);
-
spin_unlock_irqrestore(&musb->lock, flags);
- if (is_otg_enabled(musb)) {
- struct usb_hcd *hcd = musb_to_hcd(musb);
-
- dev_dbg(musb->controller, "OTG startup...\n");
+ /* REVISIT: funcall to other code, which also
+ * handles power budgeting ... this way also
+ * ensures HdrcStart is indirectly called.
+ */
+ retval = usb_add_hcd(hcd, 0, 0);
+ if (retval < 0) {
+ dev_dbg(musb->controller, "add_hcd failed, %d\n", retval);
+ goto err;
+ }
- /* REVISIT: funcall to other code, which also
- * handles power budgeting ... this way also
- * ensures HdrcStart is indirectly called.
- */
- retval = usb_add_hcd(musb_to_hcd(musb), 0, 0);
- if (retval < 0) {
- dev_dbg(musb->controller, "add_hcd failed, %d\n", retval);
- goto err2;
- }
+ if ((musb->xceiv->last_event == USB_EVENT_ID)
+ && otg->set_vbus)
+ otg_set_vbus(otg, 1);
- if ((musb->xceiv->last_event == USB_EVENT_ID)
- && otg->set_vbus)
- otg_set_vbus(otg, 1);
+ hcd->self.uses_pio_for_control = 1;
- hcd->self.uses_pio_for_control = 1;
- }
if (musb->xceiv->last_event == USB_EVENT_NONE)
pm_runtime_put(musb->controller);
return 0;
-err2:
- if (!is_otg_enabled(musb))
- musb_stop(musb);
-err0:
+err:
return retval;
}
@@ -2070,16 +2028,12 @@ static int musb_gadget_stop(struct usb_gadget *g,
musb_platform_try_idle(musb, 0);
spin_unlock_irqrestore(&musb->lock, flags);
- if (is_otg_enabled(musb)) {
- usb_remove_hcd(musb_to_hcd(musb));
- /* FIXME we need to be able to register another
- * gadget driver here and have everything work;
- * that currently misbehaves.
- */
- }
-
- if (!is_otg_enabled(musb))
- musb_stop(musb);
+ usb_remove_hcd(musb_to_hcd(musb));
+ /*
+ * FIXME we need to be able to register another
+ * gadget driver here and have everything work;
+ * that currently misbehaves.
+ */
pm_runtime_put(musb->controller);
@@ -2241,13 +2195,11 @@ __acquires(musb->lock)
if (devctl & MUSB_DEVCTL_BDEVICE) {
musb->xceiv->state = OTG_STATE_B_PERIPHERAL;
musb->g.is_a_peripheral = 0;
- } else if (is_otg_enabled(musb)) {
+ } else {
musb->xceiv->state = OTG_STATE_A_PERIPHERAL;
musb->g.is_a_peripheral = 1;
- } else
- WARN_ON(1);
+ }
/* start with default limits on VBUS power draw */
- (void) musb_gadget_vbus_draw(&musb->g,
- is_otg_enabled(musb) ? 8 : 100);
+ (void) musb_gadget_vbus_draw(&musb->g, 8);
}
diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index 1ae378d5fc6f..3df6a76b851d 100644
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -693,6 +693,8 @@ static void musb_ep_program(struct musb *musb, u8 epnum,
void __iomem *epio = hw_ep->regs;
struct musb_qh *qh = musb_ep_get_qh(hw_ep, !is_out);
u16 packet_sz = qh->maxpacket;
+ u8 use_dma = 1;
+ u16 csr;
dev_dbg(musb->controller, "%s hw%d urb %p spd%d dev%d ep%d%s "
"h_addr%02x h_port%02x bytes %d\n",
@@ -704,9 +706,17 @@ static void musb_ep_program(struct musb *musb, u8 epnum,
musb_ep_select(mbase, epnum);
+ if (is_out && !len) {
+ use_dma = 0;
+ csr = musb_readw(epio, MUSB_TXCSR);
+ csr &= ~MUSB_TXCSR_DMAENAB;
+ musb_writew(epio, MUSB_TXCSR, csr);
+ hw_ep->tx_channel = NULL;
+ }
+
/* candidate for DMA? */
dma_controller = musb->dma_controller;
- if (is_dma_capable() && epnum && dma_controller) {
+ if (use_dma && is_dma_capable() && epnum && dma_controller) {
dma_channel = is_out ? hw_ep->tx_channel : hw_ep->rx_channel;
if (!dma_channel) {
dma_channel = dma_controller->channel_alloc(
@@ -813,9 +823,28 @@ static void musb_ep_program(struct musb *musb, u8 epnum,
if (load_count) {
/* PIO to load FIFO */
qh->segsize = load_count;
- musb_write_fifo(hw_ep, load_count, buf);
+ if (!buf) {
+ sg_miter_start(&qh->sg_miter, urb->sg, 1,
+ SG_MITER_ATOMIC
+ | SG_MITER_FROM_SG);
+ if (!sg_miter_next(&qh->sg_miter)) {
+ dev_err(musb->controller,
+ "error: sg"
+ "list empty\n");
+ sg_miter_stop(&qh->sg_miter);
+ goto finish;
+ }
+ buf = qh->sg_miter.addr + urb->sg->offset +
+ urb->actual_length;
+ load_count = min_t(u32, load_count,
+ qh->sg_miter.length);
+ musb_write_fifo(hw_ep, load_count, buf);
+ qh->sg_miter.consumed = load_count;
+ sg_miter_stop(&qh->sg_miter);
+ } else
+ musb_write_fifo(hw_ep, load_count, buf);
}
-
+finish:
/* re-enable interrupt */
musb_writew(mbase, MUSB_INTRTXE, int_txe);
@@ -882,6 +911,73 @@ static void musb_ep_program(struct musb *musb, u8 epnum,
}
}
+/* Schedule next QH from musb->in_bulk/out_bulk and move the current qh to
+ * the end; avoids starvation for other endpoints.
+ */
+static void musb_bulk_nak_timeout(struct musb *musb, struct musb_hw_ep *ep,
+ int is_in)
+{
+ struct dma_channel *dma;
+ struct urb *urb;
+ void __iomem *mbase = musb->mregs;
+ void __iomem *epio = ep->regs;
+ struct musb_qh *cur_qh, *next_qh;
+ u16 rx_csr, tx_csr;
+
+ musb_ep_select(mbase, ep->epnum);
+ if (is_in) {
+ dma = is_dma_capable() ? ep->rx_channel : NULL;
+
+ /* clear nak timeout bit */
+ rx_csr = musb_readw(epio, MUSB_RXCSR);
+ rx_csr |= MUSB_RXCSR_H_WZC_BITS;
+ rx_csr &= ~MUSB_RXCSR_DATAERROR;
+ musb_writew(epio, MUSB_RXCSR, rx_csr);
+
+ cur_qh = first_qh(&musb->in_bulk);
+ } else {
+ dma = is_dma_capable() ? ep->tx_channel : NULL;
+
+ /* clear nak timeout bit */
+ tx_csr = musb_readw(epio, MUSB_TXCSR);
+ tx_csr |= MUSB_TXCSR_H_WZC_BITS;
+ tx_csr &= ~MUSB_TXCSR_H_NAKTIMEOUT;
+ musb_writew(epio, MUSB_TXCSR, tx_csr);
+
+ cur_qh = first_qh(&musb->out_bulk);
+ }
+ if (cur_qh) {
+ urb = next_urb(cur_qh);
+ if (dma_channel_status(dma) == MUSB_DMA_STATUS_BUSY) {
+ dma->status = MUSB_DMA_STATUS_CORE_ABORT;
+ musb->dma_controller->channel_abort(dma);
+ urb->actual_length += dma->actual_len;
+ dma->actual_len = 0L;
+ }
+ musb_save_toggle(cur_qh, is_in, urb);
+
+ if (is_in) {
+ /* move cur_qh to end of queue */
+ list_move_tail(&cur_qh->ring, &musb->in_bulk);
+
+ /* get the next qh from musb->in_bulk */
+ next_qh = first_qh(&musb->in_bulk);
+
+ /* set rx_reinit and schedule the next qh */
+ ep->rx_reinit = 1;
+ } else {
+ /* move cur_qh to end of queue */
+ list_move_tail(&cur_qh->ring, &musb->out_bulk);
+
+ /* get the next qh from musb->out_bulk */
+ next_qh = first_qh(&musb->out_bulk);
+
+ /* set tx_reinit and schedule the next qh */
+ ep->tx_reinit = 1;
+ }
+ musb_start_urb(musb, is_in, next_qh);
+ }
+}
/*
* Service the default endpoint (ep0) as host.
@@ -1116,6 +1212,7 @@ void musb_host_tx(struct musb *musb, u8 epnum)
void __iomem *mbase = musb->mregs;
struct dma_channel *dma;
bool transfer_pending = false;
+ static bool use_sg;
musb_ep_select(mbase, epnum);
tx_csr = musb_readw(epio, MUSB_TXCSR);
@@ -1146,23 +1243,31 @@ void musb_host_tx(struct musb *musb, u8 epnum)
status = -ETIMEDOUT;
} else if (tx_csr & MUSB_TXCSR_H_NAKTIMEOUT) {
- dev_dbg(musb->controller, "TX end=%d device not responding\n", epnum);
-
- /* NOTE: this code path would be a good place to PAUSE a
- * transfer, if there's some other (nonperiodic) tx urb
- * that could use this fifo. (dma complicates it...)
- * That's already done for bulk RX transfers.
- *
- * if (bulk && qh->ring.next != &musb->out_bulk), then
- * we have a candidate... NAKing is *NOT* an error
- */
- musb_ep_select(mbase, epnum);
- musb_writew(epio, MUSB_TXCSR,
- MUSB_TXCSR_H_WZC_BITS
- | MUSB_TXCSR_TXPKTRDY);
- return;
+ if (USB_ENDPOINT_XFER_BULK == qh->type && qh->mux == 1
+ && !list_is_singular(&musb->out_bulk)) {
+ dev_dbg(musb->controller,
+ "NAK timeout on TX%d ep\n", epnum);
+ musb_bulk_nak_timeout(musb, hw_ep, 0);
+ } else {
+ dev_dbg(musb->controller,
+ "TX end=%d device not responding\n", epnum);
+ /* NOTE: this code path would be a good place to PAUSE a
+ * transfer, if there's some other (nonperiodic) tx urb
+ * that could use this fifo. (dma complicates it...)
+ * That's already done for bulk RX transfers.
+ *
+ * if (bulk && qh->ring.next != &musb->out_bulk), then
+ * we have a candidate... NAKing is *NOT* an error
+ */
+ musb_ep_select(mbase, epnum);
+ musb_writew(epio, MUSB_TXCSR,
+ MUSB_TXCSR_H_WZC_BITS
+ | MUSB_TXCSR_TXPKTRDY);
+ }
+ return;
}
+done:
if (status) {
if (dma_channel_status(dma) == MUSB_DMA_STATUS_BUSY) {
dma->status = MUSB_DMA_STATUS_CORE_ABORT;
@@ -1332,9 +1437,38 @@ void musb_host_tx(struct musb *musb, u8 epnum)
length = qh->maxpacket;
/* Unmap the buffer so that CPU can use it */
usb_hcd_unmap_urb_for_dma(musb_to_hcd(musb), urb);
- musb_write_fifo(hw_ep, length, urb->transfer_buffer + offset);
+
+ /*
+ * We need to map sg if the transfer_buffer is
+ * NULL.
+ */
+ if (!urb->transfer_buffer)
+ use_sg = true;
+
+ if (use_sg) {
+ /* sg_miter_start is already done in musb_ep_program */
+ if (!sg_miter_next(&qh->sg_miter)) {
+ dev_err(musb->controller, "error: sg list empty\n");
+ sg_miter_stop(&qh->sg_miter);
+ status = -EINVAL;
+ goto done;
+ }
+ urb->transfer_buffer = qh->sg_miter.addr;
+ length = min_t(u32, length, qh->sg_miter.length);
+ musb_write_fifo(hw_ep, length, urb->transfer_buffer);
+ qh->sg_miter.consumed = length;
+ sg_miter_stop(&qh->sg_miter);
+ } else {
+ musb_write_fifo(hw_ep, length, urb->transfer_buffer + offset);
+ }
+
qh->segsize = length;
+ if (use_sg) {
+ if (offset + length >= urb->transfer_buffer_length)
+ use_sg = false;
+ }
+
musb_ep_select(mbase, epnum);
musb_writew(epio, MUSB_TXCSR,
MUSB_TXCSR_H_WZC_BITS | MUSB_TXCSR_TXPKTRDY);
@@ -1380,50 +1514,6 @@ void musb_host_tx(struct musb *musb, u8 epnum)
#endif
-/* Schedule next QH from musb->in_bulk and move the current qh to
- * the end; avoids starvation for other endpoints.
- */
-static void musb_bulk_rx_nak_timeout(struct musb *musb, struct musb_hw_ep *ep)
-{
- struct dma_channel *dma;
- struct urb *urb;
- void __iomem *mbase = musb->mregs;
- void __iomem *epio = ep->regs;
- struct musb_qh *cur_qh, *next_qh;
- u16 rx_csr;
-
- musb_ep_select(mbase, ep->epnum);
- dma = is_dma_capable() ? ep->rx_channel : NULL;
-
- /* clear nak timeout bit */
- rx_csr = musb_readw(epio, MUSB_RXCSR);
- rx_csr |= MUSB_RXCSR_H_WZC_BITS;
- rx_csr &= ~MUSB_RXCSR_DATAERROR;
- musb_writew(epio, MUSB_RXCSR, rx_csr);
-
- cur_qh = first_qh(&musb->in_bulk);
- if (cur_qh) {
- urb = next_urb(cur_qh);
- if (dma_channel_status(dma) == MUSB_DMA_STATUS_BUSY) {
- dma->status = MUSB_DMA_STATUS_CORE_ABORT;
- musb->dma_controller->channel_abort(dma);
- urb->actual_length += dma->actual_len;
- dma->actual_len = 0L;
- }
- musb_save_toggle(cur_qh, 1, urb);
-
- /* move cur_qh to end of queue */
- list_move_tail(&cur_qh->ring, &musb->in_bulk);
-
- /* get the next qh from musb->in_bulk */
- next_qh = first_qh(&musb->in_bulk);
-
- /* set rx_reinit and schedule the next qh */
- ep->rx_reinit = 1;
- musb_start_urb(musb, 1, next_qh);
- }
-}
-
/*
* Service an RX interrupt for the given IN endpoint; docs cover bulk, iso,
* and high-bandwidth IN transfer cases.
@@ -1442,6 +1532,8 @@ void musb_host_rx(struct musb *musb, u8 epnum)
bool done = false;
u32 status;
struct dma_channel *dma;
+ static bool use_sg;
+ unsigned int sg_flags = SG_MITER_ATOMIC | SG_MITER_TO_SG;
musb_ep_select(mbase, epnum);
@@ -1500,7 +1592,7 @@ void musb_host_rx(struct musb *musb, u8 epnum)
if (usb_pipebulk(urb->pipe)
&& qh->mux == 1
&& !list_is_singular(&musb->in_bulk)) {
- musb_bulk_rx_nak_timeout(musb, hw_ep);
+ musb_bulk_nak_timeout(musb, hw_ep, 1);
return;
}
musb_ep_select(mbase, epnum);
@@ -1756,10 +1848,43 @@ void musb_host_rx(struct musb *musb, u8 epnum)
#endif /* Mentor DMA */
if (!dma) {
+ unsigned int received_len;
+
/* Unmap the buffer so that CPU can use it */
usb_hcd_unmap_urb_for_dma(musb_to_hcd(musb), urb);
- done = musb_host_packet_rx(musb, urb,
- epnum, iso_err);
+
+ /*
+ * We need to map sg if the transfer_buffer is
+ * NULL.
+ */
+ if (!urb->transfer_buffer) {
+ use_sg = true;
+ sg_miter_start(&qh->sg_miter, urb->sg, 1,
+ sg_flags);
+ }
+
+ if (use_sg) {
+ if (!sg_miter_next(&qh->sg_miter)) {
+ dev_err(musb->controller, "error: sg list empty\n");
+ sg_miter_stop(&qh->sg_miter);
+ status = -EINVAL;
+ done = true;
+ goto finish;
+ }
+ urb->transfer_buffer = qh->sg_miter.addr;
+ received_len = urb->actual_length;
+ qh->offset = 0x0;
+ done = musb_host_packet_rx(musb, urb, epnum,
+ iso_err);
+ /* Calculate the number of bytes received */
+ received_len = urb->actual_length -
+ received_len;
+ qh->sg_miter.consumed = received_len;
+ sg_miter_stop(&qh->sg_miter);
+ } else {
+ done = musb_host_packet_rx(musb, urb,
+ epnum, iso_err);
+ }
dev_dbg(musb->controller, "read %spacket\n", done ? "last " : "");
}
}
@@ -1768,6 +1893,9 @@ finish:
urb->actual_length += xfer_len;
qh->offset += xfer_len;
if (done) {
+ if (use_sg)
+ use_sg = false;
+
if (urb->status == -EINPROGRESS)
urb->status = status;
musb_advance_schedule(musb, urb, hw_ep, USB_DIR_IN);
@@ -1863,14 +1991,14 @@ static int musb_schedule(
else
head = &musb->out_bulk;
- /* Enable bulk RX NAK timeout scheme when bulk requests are
+ /* Enable bulk RX/TX NAK timeout scheme when bulk requests are
* multiplexed. This scheme doen't work in high speed to full
* speed scenario as NAK interrupts are not coming from a
* full speed device connected to a high speed device.
* NAK timeout interval is 8 (128 uframe or 16ms) for HS and
* 4 (8 frame or 8ms) for FS device.
*/
- if (is_in && qh->dev)
+ if (qh->dev)
qh->intv_reg =
(USB_SPEED_HIGH == qh->dev->speed) ? 8 : 4;
goto success;
diff --git a/drivers/usb/musb/musb_host.h b/drivers/usb/musb/musb_host.h
index 622d09fb9aba..5a9c8feec10c 100644
--- a/drivers/usb/musb/musb_host.h
+++ b/drivers/usb/musb/musb_host.h
@@ -35,6 +35,8 @@
#ifndef _MUSB_HOST_H
#define _MUSB_HOST_H
+#include <linux/scatterlist.h>
+
static inline struct usb_hcd *musb_to_hcd(struct musb *musb)
{
return container_of((void *) musb, struct usb_hcd, hcd_priv);
@@ -71,6 +73,7 @@ struct musb_qh {
u16 maxpacket;
u16 frame; /* for periodic schedule */
unsigned iso_idx; /* in urb->iso_frame_desc[] */
+ struct sg_mapping_iter sg_miter; /* for highmem in PIO mode */
};
/* map from control or bulk queue head to the first qh on that ring */
diff --git a/drivers/usb/musb/musb_virthub.c b/drivers/usb/musb/musb_virthub.c
index 22ec3e379980..f70579154ded 100644
--- a/drivers/usb/musb/musb_virthub.c
+++ b/drivers/usb/musb/musb_virthub.c
@@ -81,8 +81,7 @@ static void musb_port_suspend(struct musb *musb, bool do_suspend)
switch (musb->xceiv->state) {
case OTG_STATE_A_HOST:
musb->xceiv->state = OTG_STATE_A_SUSPEND;
- musb->is_active = is_otg_enabled(musb)
- && otg->host->b_hnp_enable;
+ musb->is_active = otg->host->b_hnp_enable;
if (musb->is_active)
mod_timer(&musb->otg_timer, jiffies
+ msecs_to_jiffies(
@@ -91,8 +90,7 @@ static void musb_port_suspend(struct musb *musb, bool do_suspend)
break;
case OTG_STATE_B_HOST:
musb->xceiv->state = OTG_STATE_B_WAIT_ACON;
- musb->is_active = is_otg_enabled(musb)
- && otg->host->b_hnp_enable;
+ musb->is_active = otg->host->b_hnp_enable;
musb_platform_try_idle(musb, 0);
break;
default:
@@ -190,8 +188,7 @@ void musb_root_disconnect(struct musb *musb)
switch (musb->xceiv->state) {
case OTG_STATE_A_SUSPEND:
- if (is_otg_enabled(musb)
- && otg->host->b_hnp_enable) {
+ if (otg->host->b_hnp_enable) {
musb->xceiv->state = OTG_STATE_A_PERIPHERAL;
musb->g.is_a_peripheral = 1;
break;
@@ -273,7 +270,7 @@ int musb_hub_control(
musb_port_suspend(musb, false);
break;
case USB_PORT_FEAT_POWER:
- if (!(is_otg_enabled(musb) && hcd->self.is_b_host))
+ if (!hcd->self.is_b_host)
musb_platform_set_vbus(musb, 0);
break;
case USB_PORT_FEAT_C_CONNECTION:
@@ -369,7 +366,7 @@ int musb_hub_control(
* initialization logic, e.g. for OTG, or change any
* logic relating to VBUS power-up.
*/
- if (!(is_otg_enabled(musb) && hcd->self.is_b_host))
+ if (!hcd->self.is_b_host)
musb_start(musb);
break;
case USB_PORT_FEAT_RESET:
diff --git a/drivers/usb/musb/musbhsdma.c b/drivers/usb/musb/musbhsdma.c
index c1be687e00ec..0fc6ca6bc60a 100644
--- a/drivers/usb/musb/musbhsdma.c
+++ b/drivers/usb/musb/musbhsdma.c
@@ -380,7 +380,7 @@ void dma_controller_destroy(struct dma_controller *c)
kfree(controller);
}
-struct dma_controller *__init
+struct dma_controller *__devinit
dma_controller_create(struct musb *musb, void __iomem *base)
{
struct musb_dma_controller *controller;
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index 5fdb9da8dd56..a538fe17a966 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -30,10 +30,12 @@
#include <linux/init.h>
#include <linux/list.h>
#include <linux/io.h>
+#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
#include <linux/pm_runtime.h>
#include <linux/err.h>
+#include <linux/delay.h>
#include <linux/usb/musb-omap.h>
#include "musb_core.h"
@@ -44,6 +46,7 @@ struct omap2430_glue {
struct platform_device *musb;
enum omap_musb_vbus_id_status status;
struct work_struct omap_musb_mailbox_work;
+ u32 __iomem *control_otghs;
};
#define glue_to_musb(g) platform_get_drvdata(g->musb)
@@ -51,6 +54,26 @@ struct omap2430_glue *_glue;
static struct timer_list musb_idle_timer;
+/**
+ * omap4_usb_phy_mailbox - write to usb otg mailbox
+ * @glue: struct omap2430_glue *
+ * @val: the value to be written to the mailbox
+ *
+ * On detection of a device (ID pin is grounded), this API should be called
+ * to set AVALID, VBUSVALID and ID pin is grounded.
+ *
+ * When OMAP is connected to a host (OMAP in device mode), this API
+ * is called to set AVALID, VBUSVALID and ID pin in high impedance.
+ *
+ * XXX: This function will be removed once we have a seperate driver for
+ * control module
+ */
+static void omap4_usb_phy_mailbox(struct omap2430_glue *glue, u32 val)
+{
+ if (glue->control_otghs)
+ writel(val, glue->control_otghs);
+}
+
static void musb_do_idle(unsigned long _musb)
{
struct musb *musb = (void *)_musb;
@@ -140,7 +163,6 @@ static void omap2430_musb_set_vbus(struct musb *musb, int is_on)
struct usb_otg *otg = musb->xceiv->otg;
u8 devctl;
unsigned long timeout = jiffies + msecs_to_jiffies(1000);
- int ret = 1;
/* HDRC controls CPEN, but beware current surges during device
* connect. They can trigger transient overcurrent conditions
* that must be ignored.
@@ -150,6 +172,7 @@ static void omap2430_musb_set_vbus(struct musb *musb, int is_on)
if (is_on) {
if (musb->xceiv->state == OTG_STATE_A_IDLE) {
+ int loops = 100;
/* start the session */
devctl |= MUSB_DEVCTL_SESSION;
musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
@@ -159,17 +182,18 @@ static void omap2430_musb_set_vbus(struct musb *musb, int is_on)
*/
while (musb_readb(musb->mregs, MUSB_DEVCTL) & 0x80) {
+ mdelay(5);
cpu_relax();
- if (time_after(jiffies, timeout)) {
+ if (time_after(jiffies, timeout)
+ || loops-- <= 0) {
dev_err(musb->controller,
"configured as A device timeout");
- ret = -EINVAL;
break;
}
}
- if (ret && otg->set_vbus)
+ if (otg->set_vbus)
otg_set_vbus(otg, 1);
} else {
musb->is_active = 1;
@@ -245,6 +269,7 @@ EXPORT_SYMBOL_GPL(omap_musb_mailbox);
static void omap_musb_set_mailbox(struct omap2430_glue *glue)
{
+ u32 val;
struct musb *musb = glue_to_musb(glue);
struct device *dev = musb->controller;
struct musb_hdrc_platform_data *pdata = dev->platform_data;
@@ -258,9 +283,10 @@ static void omap_musb_set_mailbox(struct omap2430_glue *glue)
otg->default_a = true;
musb->xceiv->state = OTG_STATE_A_IDLE;
musb->xceiv->last_event = USB_EVENT_ID;
- if (!is_otg_enabled(musb) || musb->gadget_driver) {
+ if (musb->gadget_driver) {
pm_runtime_get_sync(dev);
- usb_phy_init(musb->xceiv);
+ val = AVALID | VBUSVALID;
+ omap4_usb_phy_mailbox(glue, val);
omap2430_musb_set_vbus(musb, 1);
}
break;
@@ -273,7 +299,8 @@ static void omap_musb_set_mailbox(struct omap2430_glue *glue)
musb->xceiv->last_event = USB_EVENT_VBUS;
if (musb->gadget_driver)
pm_runtime_get_sync(dev);
- usb_phy_init(musb->xceiv);
+ val = IDDIG | AVALID | VBUSVALID;
+ omap4_usb_phy_mailbox(glue, val);
break;
case OMAP_MUSB_ID_FLOAT:
@@ -281,17 +308,17 @@ static void omap_musb_set_mailbox(struct omap2430_glue *glue)
dev_dbg(dev, "VBUS Disconnect\n");
musb->xceiv->last_event = USB_EVENT_NONE;
- if (is_otg_enabled(musb) || is_peripheral_enabled(musb))
- if (musb->gadget_driver) {
- pm_runtime_mark_last_busy(dev);
- pm_runtime_put_autosuspend(dev);
- }
+ if (musb->gadget_driver) {
+ pm_runtime_mark_last_busy(dev);
+ pm_runtime_put_autosuspend(dev);
+ }
if (data->interface_type == MUSB_INTERFACE_UTMI) {
if (musb->xceiv->otg->set_vbus)
otg_set_vbus(musb->xceiv->otg, 0);
}
- usb_phy_shutdown(musb->xceiv);
+ val = SESSEND | IDDIG;
+ omap4_usb_phy_mailbox(glue, val);
break;
default:
dev_dbg(dev, "ID float\n");
@@ -366,6 +393,7 @@ err1:
static void omap2430_musb_enable(struct musb *musb)
{
u8 devctl;
+ u32 val;
unsigned long timeout = jiffies + msecs_to_jiffies(1000);
struct device *dev = musb->controller;
struct omap2430_glue *glue = dev_get_drvdata(dev->parent);
@@ -375,7 +403,8 @@ static void omap2430_musb_enable(struct musb *musb)
switch (glue->status) {
case OMAP_MUSB_ID_GROUND:
- usb_phy_init(musb->xceiv);
+ val = AVALID | VBUSVALID;
+ omap4_usb_phy_mailbox(glue, val);
if (data->interface_type != MUSB_INTERFACE_UTMI)
break;
devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
@@ -394,7 +423,8 @@ static void omap2430_musb_enable(struct musb *musb)
break;
case OMAP_MUSB_VBUS_VALID:
- usb_phy_init(musb->xceiv);
+ val = IDDIG | AVALID | VBUSVALID;
+ omap4_usb_phy_mailbox(glue, val);
break;
default:
@@ -404,11 +434,14 @@ static void omap2430_musb_enable(struct musb *musb)
static void omap2430_musb_disable(struct musb *musb)
{
+ u32 val;
struct device *dev = musb->controller;
struct omap2430_glue *glue = dev_get_drvdata(dev->parent);
- if (glue->status != OMAP_MUSB_UNKNOWN)
- usb_phy_shutdown(musb->xceiv);
+ if (glue->status != OMAP_MUSB_UNKNOWN) {
+ val = SESSEND | IDDIG;
+ omap4_usb_phy_mailbox(glue, val);
+ }
}
static int omap2430_musb_exit(struct musb *musb)
@@ -438,9 +471,14 @@ static u64 omap2430_dmamask = DMA_BIT_MASK(32);
static int __devinit omap2430_probe(struct platform_device *pdev)
{
struct musb_hdrc_platform_data *pdata = pdev->dev.platform_data;
+ struct omap_musb_board_data *data;
struct platform_device *musb;
struct omap2430_glue *glue;
+ struct device_node *np = pdev->dev.of_node;
+ struct musb_hdrc_config *config;
+ struct resource *res;
int ret = -ENOMEM;
+ int musbid;
glue = devm_kzalloc(&pdev->dev, sizeof(*glue), GFP_KERNEL);
if (!glue) {
@@ -448,12 +486,21 @@ static int __devinit omap2430_probe(struct platform_device *pdev)
goto err0;
}
- musb = platform_device_alloc("musb-hdrc", -1);
+ /* get the musb id */
+ musbid = musb_get_id(&pdev->dev, GFP_KERNEL);
+ if (musbid < 0) {
+ dev_err(&pdev->dev, "failed to allocate musb id\n");
+ ret = -ENOMEM;
+ goto err0;
+ }
+
+ musb = platform_device_alloc("musb-hdrc", musbid);
if (!musb) {
dev_err(&pdev->dev, "failed to allocate musb device\n");
- goto err0;
+ goto err1;
}
+ musb->id = musbid;
musb->dev.parent = &pdev->dev;
musb->dev.dma_mask = &omap2430_dmamask;
musb->dev.coherent_dma_mask = omap2430_dmamask;
@@ -462,6 +509,48 @@ static int __devinit omap2430_probe(struct platform_device *pdev)
glue->musb = musb;
glue->status = OMAP_MUSB_UNKNOWN;
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+
+ glue->control_otghs = devm_request_and_ioremap(&pdev->dev, res);
+ if (glue->control_otghs == NULL)
+ dev_dbg(&pdev->dev, "Failed to obtain control memory\n");
+
+ if (np) {
+ pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata) {
+ dev_err(&pdev->dev,
+ "failed to allocate musb platfrom data\n");
+ ret = -ENOMEM;
+ goto err1;
+ }
+
+ data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
+ if (!data) {
+ dev_err(&pdev->dev,
+ "failed to allocate musb board data\n");
+ ret = -ENOMEM;
+ goto err1;
+ }
+
+ config = devm_kzalloc(&pdev->dev, sizeof(*config), GFP_KERNEL);
+ if (!data) {
+ dev_err(&pdev->dev,
+ "failed to allocate musb hdrc config\n");
+ goto err1;
+ }
+
+ of_property_read_u32(np, "mode", (u32 *)&pdata->mode);
+ of_property_read_u32(np, "interface_type",
+ (u32 *)&data->interface_type);
+ of_property_read_u32(np, "num_eps", (u32 *)&config->num_eps);
+ of_property_read_u32(np, "ram_bits", (u32 *)&config->ram_bits);
+ of_property_read_u32(np, "power", (u32 *)&pdata->power);
+ config->multipoint = of_property_read_bool(np, "multipoint");
+
+ pdata->board_data = data;
+ pdata->config = config;
+ }
+
pdata->platform_ops = &omap2430_ops;
platform_set_drvdata(pdev, glue);
@@ -478,13 +567,13 @@ static int __devinit omap2430_probe(struct platform_device *pdev)
pdev->num_resources);
if (ret) {
dev_err(&pdev->dev, "failed to add resources\n");
- goto err1;
+ goto err2;
}
ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
if (ret) {
dev_err(&pdev->dev, "failed to add platform_data\n");
- goto err1;
+ goto err2;
}
pm_runtime_enable(&pdev->dev);
@@ -492,14 +581,17 @@ static int __devinit omap2430_probe(struct platform_device *pdev)
ret = platform_device_add(musb);
if (ret) {
dev_err(&pdev->dev, "failed to register musb device\n");
- goto err1;
+ goto err2;
}
return 0;
-err1:
+err2:
platform_device_put(musb);
+err1:
+ musb_put_id(&pdev->dev, musbid);
+
err0:
return ret;
}
@@ -509,8 +601,8 @@ static int __devexit omap2430_remove(struct platform_device *pdev)
struct omap2430_glue *glue = platform_get_drvdata(pdev);
cancel_work_sync(&glue->omap_musb_mailbox_work);
- platform_device_del(glue->musb);
- platform_device_put(glue->musb);
+ musb_put_id(&pdev->dev, glue->musb->id);
+ platform_device_unregister(glue->musb);
return 0;
}
@@ -559,12 +651,26 @@ static struct dev_pm_ops omap2430_pm_ops = {
#define DEV_PM_OPS NULL
#endif
+#ifdef CONFIG_OF
+static const struct of_device_id omap2430_id_table[] = {
+ {
+ .compatible = "ti,omap4-musb"
+ },
+ {
+ .compatible = "ti,omap3-musb"
+ },
+ {},
+};
+MODULE_DEVICE_TABLE(of, omap2430_id_table);
+#endif
+
static struct platform_driver omap2430_driver = {
.probe = omap2430_probe,
.remove = __devexit_p(omap2430_remove),
.driver = {
.name = "musb-omap2430",
.pm = DEV_PM_OPS,
+ .of_match_table = of_match_ptr(omap2430_id_table),
},
};
diff --git a/drivers/usb/musb/omap2430.h b/drivers/usb/musb/omap2430.h
index 40b3c02ae9f0..b85f3973e78c 100644
--- a/drivers/usb/musb/omap2430.h
+++ b/drivers/usb/musb/omap2430.h
@@ -49,4 +49,13 @@
#define OTG_FORCESTDBY 0x414
# define ENABLEFORCE (1 << 0)
+/*
+ * Control Module bit definitions
+ * XXX: Will be removed once we have a driver for control module.
+ */
+#define AVALID BIT(0)
+#define BVALID BIT(1)
+#define VBUSVALID BIT(2)
+#define SESSEND BIT(3)
+#define IDDIG BIT(4)
#endif /* __MUSB_OMAP243X_H__ */
diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c
index 341625442377..dc4d75ea13ad 100644
--- a/drivers/usb/musb/tusb6010.c
+++ b/drivers/usb/musb/tusb6010.c
@@ -24,6 +24,7 @@
#include <linux/irq.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
+#include <linux/usb/nop-usb-xceiv.h>
#include "musb_core.h"
@@ -153,7 +154,7 @@ tusb_fifo_write_unaligned(void __iomem *fifo, const u8 *buf, u16 len)
}
static inline void tusb_fifo_read_unaligned(void __iomem *fifo,
- void __iomem *buf, u16 len)
+ void *buf, u16 len)
{
u32 val;
int i;
@@ -437,14 +438,13 @@ static void musb_do_idle(unsigned long _musb)
if (is_host_active(musb) && (musb->port1_status >> 16))
goto done;
- if (is_peripheral_enabled(musb) && !musb->gadget_driver) {
+ if (!musb->gadget_driver) {
wakeups = 0;
} else {
wakeups = TUSB_PRCM_WHOSTDISCON
| TUSB_PRCM_WBUS
| TUSB_PRCM_WVBUS;
- if (is_otg_enabled(musb))
- wakeups |= TUSB_PRCM_WID;
+ wakeups |= TUSB_PRCM_WID;
}
tusb_allow_idle(musb, wakeups);
}
@@ -582,21 +582,12 @@ static void tusb_musb_set_vbus(struct musb *musb, int is_on)
*
* Note that if a mini-A cable is plugged in the ID line will stay down as
* the weak ID pull-up is not able to pull the ID up.
- *
- * REVISIT: It would be possible to add support for changing between host
- * and peripheral modes in non-OTG configurations by reconfiguring hardware
- * and then setting musb->board_mode. For now, only support OTG mode.
*/
static int tusb_musb_set_mode(struct musb *musb, u8 musb_mode)
{
void __iomem *tbase = musb->ctrl_base;
u32 otg_stat, phy_otg_ctrl, phy_otg_ena, dev_conf;
- if (musb->board_mode != MUSB_OTG) {
- ERR("Changing mode currently only supported in OTG mode\n");
- return -EINVAL;
- }
-
otg_stat = musb_readl(tbase, TUSB_DEV_OTG_STAT);
phy_otg_ctrl = musb_readl(tbase, TUSB_PHY_OTG_CTRL);
phy_otg_ena = musb_readl(tbase, TUSB_PHY_OTG_CTRL_ENABLE);
@@ -652,10 +643,7 @@ tusb_otg_ints(struct musb *musb, u32 int_src, void __iomem *tbase)
if ((int_src & TUSB_INT_SRC_ID_STATUS_CHNG)) {
int default_a;
- if (is_otg_enabled(musb))
- default_a = !(otg_stat & TUSB_DEV_OTG_STAT_ID_STATUS);
- else
- default_a = is_host_enabled(musb);
+ default_a = !(otg_stat & TUSB_DEV_OTG_STAT_ID_STATUS);
dev_dbg(musb->controller, "Default-%c\n", default_a ? 'A' : 'B');
otg->default_a = default_a;
tusb_musb_set_vbus(musb, default_a);
@@ -669,8 +657,7 @@ tusb_otg_ints(struct musb *musb, u32 int_src, void __iomem *tbase)
if (int_src & TUSB_INT_SRC_VBUS_SENSE_CHNG) {
/* B-dev state machine: no vbus ~= disconnect */
- if ((is_otg_enabled(musb) && !otg->default_a)
- || !is_host_enabled(musb)) {
+ if (!otg->default_a) {
/* ? musb_root_disconnect(musb); */
musb->port1_status &=
~(USB_PORT_STAT_CONNECTION
@@ -1119,10 +1106,8 @@ static int tusb_musb_init(struct musb *musb)
}
musb->isr = tusb_musb_interrupt;
- if (is_peripheral_enabled(musb)) {
- musb->xceiv->set_power = tusb_draw_power;
- the_musb = musb;
- }
+ musb->xceiv->set_power = tusb_draw_power;
+ the_musb = musb;
setup_timer(&musb_idle_timer, musb_do_idle, (unsigned long) musb);
@@ -1175,6 +1160,7 @@ static int __devinit tusb_probe(struct platform_device *pdev)
struct tusb6010_glue *glue;
int ret = -ENOMEM;
+ int musbid;
glue = kzalloc(sizeof(*glue), GFP_KERNEL);
if (!glue) {
@@ -1182,12 +1168,21 @@ static int __devinit tusb_probe(struct platform_device *pdev)
goto err0;
}
- musb = platform_device_alloc("musb-hdrc", -1);
+ /* get the musb id */
+ musbid = musb_get_id(&pdev->dev, GFP_KERNEL);
+ if (musbid < 0) {
+ dev_err(&pdev->dev, "failed to allocate musb id\n");
+ ret = -ENOMEM;
+ goto err1;
+ }
+
+ musb = platform_device_alloc("musb-hdrc", musbid);
if (!musb) {
dev_err(&pdev->dev, "failed to allocate musb device\n");
- goto err1;
+ goto err2;
}
+ musb->id = musbid;
musb->dev.parent = &pdev->dev;
musb->dev.dma_mask = &tusb_dmamask;
musb->dev.coherent_dma_mask = tusb_dmamask;
@@ -1203,26 +1198,29 @@ static int __devinit tusb_probe(struct platform_device *pdev)
pdev->num_resources);
if (ret) {
dev_err(&pdev->dev, "failed to add resources\n");
- goto err2;
+ goto err3;
}
ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
if (ret) {
dev_err(&pdev->dev, "failed to add platform_data\n");
- goto err2;
+ goto err3;
}
ret = platform_device_add(musb);
if (ret) {
dev_err(&pdev->dev, "failed to register musb device\n");
- goto err2;
+ goto err3;
}
return 0;
-err2:
+err3:
platform_device_put(musb);
+err2:
+ musb_put_id(&pdev->dev, musbid);
+
err1:
kfree(glue);
@@ -1234,6 +1232,7 @@ static int __devexit tusb_remove(struct platform_device *pdev)
{
struct tusb6010_glue *glue = platform_get_drvdata(pdev);
+ musb_put_id(&pdev->dev, glue->musb->id);
platform_device_del(glue->musb);
platform_device_put(glue->musb);
kfree(glue);
diff --git a/drivers/usb/musb/tusb6010_omap.c b/drivers/usb/musb/tusb6010_omap.c
index b67b4bc596c1..53e25968ed0c 100644
--- a/drivers/usb/musb/tusb6010_omap.c
+++ b/drivers/usb/musb/tusb6010_omap.c
@@ -662,7 +662,7 @@ void dma_controller_destroy(struct dma_controller *c)
kfree(tusb_dma);
}
-struct dma_controller *__init
+struct dma_controller *__devinit
dma_controller_create(struct musb *musb, void __iomem *base)
{
void __iomem *tbase = musb->ctrl_base;
diff --git a/drivers/usb/musb/ux500.c b/drivers/usb/musb/ux500.c
index a8c0fadce1b0..d62a91fedc22 100644
--- a/drivers/usb/musb/ux500.c
+++ b/drivers/usb/musb/ux500.c
@@ -74,25 +74,34 @@ static int __devinit ux500_probe(struct platform_device *pdev)
goto err0;
}
- musb = platform_device_alloc("musb-hdrc", -1);
+ /* get the musb id */
+ musbid = musb_get_id(&pdev->dev, GFP_KERNEL);
+ if (musbid < 0) {
+ dev_err(&pdev->dev, "failed to allocate musb id\n");
+ ret = -ENOMEM;
+ goto err1;
+ }
+
+ musb = platform_device_alloc("musb-hdrc", musbid);
if (!musb) {
dev_err(&pdev->dev, "failed to allocate musb device\n");
- goto err1;
+ goto err2;
}
clk = clk_get(&pdev->dev, "usb");
if (IS_ERR(clk)) {
dev_err(&pdev->dev, "failed to get clock\n");
ret = PTR_ERR(clk);
- goto err2;
+ goto err3;
}
ret = clk_enable(clk);
if (ret) {
dev_err(&pdev->dev, "failed to enable clock\n");
- goto err3;
+ goto err4;
}
+ musb->id = musbid;
musb->dev.parent = &pdev->dev;
musb->dev.dma_mask = pdev->dev.dma_mask;
musb->dev.coherent_dma_mask = pdev->dev.coherent_dma_mask;
@@ -109,32 +118,35 @@ static int __devinit ux500_probe(struct platform_device *pdev)
pdev->num_resources);
if (ret) {
dev_err(&pdev->dev, "failed to add resources\n");
- goto err4;
+ goto err5;
}
ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
if (ret) {
dev_err(&pdev->dev, "failed to add platform_data\n");
- goto err4;
+ goto err5;
}
ret = platform_device_add(musb);
if (ret) {
dev_err(&pdev->dev, "failed to register musb device\n");
- goto err4;
+ goto err5;
}
return 0;
-err4:
+err5:
clk_disable(clk);
-err3:
+err4:
clk_put(clk);
-err2:
+err3:
platform_device_put(musb);
+err2:
+ musb_put_id(&pdev->dev, musbid);
+
err1:
kfree(glue);
@@ -146,6 +158,7 @@ static int __devexit ux500_remove(struct platform_device *pdev)
{
struct ux500_glue *glue = platform_get_drvdata(pdev);
+ musb_put_id(&pdev->dev, glue->musb->id);
platform_device_del(glue->musb);
platform_device_put(glue->musb);
clk_disable(glue->clk);
diff --git a/drivers/usb/musb/ux500_dma.c b/drivers/usb/musb/ux500_dma.c
index d05c7fbbb703..639d58ee24f9 100644
--- a/drivers/usb/musb/ux500_dma.c
+++ b/drivers/usb/musb/ux500_dma.c
@@ -364,7 +364,7 @@ void dma_controller_destroy(struct dma_controller *c)
kfree(controller);
}
-struct dma_controller *__init
+struct dma_controller *__devinit
dma_controller_create(struct musb *musb, void __iomem *base)
{
struct ux500_dma_controller *controller;
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-06 14:43:33 +0300