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authorKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2012-09-12 19:14:33 +0400
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2012-09-12 19:14:33 +0400
commit25a765b7f05cb8460fa01b54568894b20e184862 (patch)
tree0b56db57b4d9f912393ab303c269e0fe6cdf8635 /drivers/net/ethernet/freescale/fec.c
parent9d2be9287107695708e6aae5105a8a518a6cb4d0 (diff)
parent64282278989d5b0398dcb3ba7904cb00c621dc35 (diff)
downloadlinux-25a765b7f05cb8460fa01b54568894b20e184862.tar.xz
Merge branch 'x86/platform' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into stable/for-linus-3.7
* 'x86/platform' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (9690 commits) x86: Document x86_init.paging.pagetable_init() x86: xen: Cleanup and remove x86_init.paging.pagetable_setup_done() x86: Move paging_init() call to x86_init.paging.pagetable_init() x86: Rename pagetable_setup_start() to pagetable_init() x86: Remove base argument from x86_init.paging.pagetable_setup_start Linux 3.6-rc5 HID: tpkbd: work even if the new Lenovo Keyboard driver is not configured Remove user-triggerable BUG from mpol_to_str xen/pciback: Fix proper FLR steps. uml: fix compile error in deliver_alarm() dj: memory scribble in logi_dj Fix order of arguments to compat_put_time[spec|val] xen: Use correct masking in xen_swiotlb_alloc_coherent. xen: fix logical error in tlb flushing xen/p2m: Fix one-off error in checking the P2M tree directory. powerpc: Don't use __put_user() in patch_instruction powerpc: Make sure IPI handlers see data written by IPI senders powerpc: Restore correct DSCR in context switch powerpc: Fix DSCR inheritance in copy_thread() powerpc: Keep thread.dscr and thread.dscr_inherit in sync ...
Diffstat (limited to 'drivers/net/ethernet/freescale/fec.c')
-rw-r--r--drivers/net/ethernet/freescale/fec.c32
1 files changed, 26 insertions, 6 deletions
diff --git a/drivers/net/ethernet/freescale/fec.c b/drivers/net/ethernet/freescale/fec.c
index ff7f4c5115a1..fffd20528b5d 100644
--- a/drivers/net/ethernet/freescale/fec.c
+++ b/drivers/net/ethernet/freescale/fec.c
@@ -49,6 +49,7 @@
#include <linux/of_gpio.h>
#include <linux/of_net.h>
#include <linux/pinctrl/consumer.h>
+#include <linux/regulator/consumer.h>
#include <asm/cacheflush.h>
@@ -1388,8 +1389,8 @@ fec_set_mac_address(struct net_device *ndev, void *p)
}
#ifdef CONFIG_NET_POLL_CONTROLLER
-/*
- * fec_poll_controller: FEC Poll controller function
+/**
+ * fec_poll_controller - FEC Poll controller function
* @dev: The FEC network adapter
*
* Polled functionality used by netconsole and others in non interrupt mode
@@ -1506,18 +1507,25 @@ static int __devinit fec_get_phy_mode_dt(struct platform_device *pdev)
static void __devinit fec_reset_phy(struct platform_device *pdev)
{
int err, phy_reset;
+ int msec = 1;
struct device_node *np = pdev->dev.of_node;
if (!np)
return;
+ of_property_read_u32(np, "phy-reset-duration", &msec);
+ /* A sane reset duration should not be longer than 1s */
+ if (msec > 1000)
+ msec = 1;
+
phy_reset = of_get_named_gpio(np, "phy-reset-gpios", 0);
- err = gpio_request_one(phy_reset, GPIOF_OUT_INIT_LOW, "phy-reset");
+ err = devm_gpio_request_one(&pdev->dev, phy_reset,
+ GPIOF_OUT_INIT_LOW, "phy-reset");
if (err) {
pr_debug("FEC: failed to get gpio phy-reset: %d\n", err);
return;
}
- msleep(1);
+ msleep(msec);
gpio_set_value(phy_reset, 1);
}
#else /* CONFIG_OF */
@@ -1546,6 +1554,7 @@ fec_probe(struct platform_device *pdev)
const struct of_device_id *of_id;
static int dev_id;
struct pinctrl *pinctrl;
+ struct regulator *reg_phy;
of_id = of_match_device(fec_dt_ids, &pdev->dev);
if (of_id)
@@ -1593,8 +1602,6 @@ fec_probe(struct platform_device *pdev)
fep->phy_interface = ret;
}
- fec_reset_phy(pdev);
-
for (i = 0; i < FEC_IRQ_NUM; i++) {
irq = platform_get_irq(pdev, i);
if (irq < 0) {
@@ -1634,6 +1641,18 @@ fec_probe(struct platform_device *pdev)
clk_prepare_enable(fep->clk_ahb);
clk_prepare_enable(fep->clk_ipg);
+ reg_phy = devm_regulator_get(&pdev->dev, "phy");
+ if (!IS_ERR(reg_phy)) {
+ ret = regulator_enable(reg_phy);
+ if (ret) {
+ dev_err(&pdev->dev,
+ "Failed to enable phy regulator: %d\n", ret);
+ goto failed_regulator;
+ }
+ }
+
+ fec_reset_phy(pdev);
+
ret = fec_enet_init(ndev);
if (ret)
goto failed_init;
@@ -1655,6 +1674,7 @@ failed_register:
fec_enet_mii_remove(fep);
failed_mii_init:
failed_init:
+failed_regulator:
clk_disable_unprepare(fep->clk_ahb);
clk_disable_unprepare(fep->clk_ipg);
failed_pin: