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-rw-r--r--drivers/pinctrl/intel/Kconfig8
-rw-r--r--drivers/pinctrl/intel/Makefile1
-rw-r--r--drivers/pinctrl/intel/pinctrl-baytrail.c79
-rw-r--r--drivers/pinctrl/intel/pinctrl-broxton.c7
-rw-r--r--drivers/pinctrl/intel/pinctrl-cherryview.c4
-rw-r--r--drivers/pinctrl/intel/pinctrl-geminilake.c512
-rw-r--r--drivers/pinctrl/intel/pinctrl-intel.c201
-rw-r--r--drivers/pinctrl/intel/pinctrl-intel.h8
-rw-r--r--drivers/pinctrl/intel/pinctrl-merrifield.c3
-rw-r--r--drivers/pinctrl/intel/pinctrl-sunrisepoint.c1
10 files changed, 752 insertions, 72 deletions
diff --git a/drivers/pinctrl/intel/Kconfig b/drivers/pinctrl/intel/Kconfig
index 00fb055a4897..396830a41127 100644
--- a/drivers/pinctrl/intel/Kconfig
+++ b/drivers/pinctrl/intel/Kconfig
@@ -56,6 +56,14 @@ config PINCTRL_BROXTON
Broxton pinctrl driver provides an interface that allows
configuring of SoC pins and using them as GPIOs.
+config PINCTRL_GEMINILAKE
+ tristate "Intel Gemini Lake SoC pinctrl and GPIO driver"
+ depends on ACPI
+ select PINCTRL_INTEL
+ help
+ This pinctrl driver provides an interface that allows configuring
+ of Intel Gemini Lake SoC pins and using them as GPIOs.
+
config PINCTRL_SUNRISEPOINT
tristate "Intel Sunrisepoint pinctrl and GPIO driver"
depends on ACPI
diff --git a/drivers/pinctrl/intel/Makefile b/drivers/pinctrl/intel/Makefile
index 30803078f09e..12f3af5b2ca5 100644
--- a/drivers/pinctrl/intel/Makefile
+++ b/drivers/pinctrl/intel/Makefile
@@ -5,4 +5,5 @@ obj-$(CONFIG_PINCTRL_CHERRYVIEW) += pinctrl-cherryview.o
obj-$(CONFIG_PINCTRL_MERRIFIELD) += pinctrl-merrifield.o
obj-$(CONFIG_PINCTRL_INTEL) += pinctrl-intel.o
obj-$(CONFIG_PINCTRL_BROXTON) += pinctrl-broxton.o
+obj-$(CONFIG_PINCTRL_GEMINILAKE) += pinctrl-geminilake.o
obj-$(CONFIG_PINCTRL_SUNRISEPOINT) += pinctrl-sunrisepoint.o
diff --git a/drivers/pinctrl/intel/pinctrl-baytrail.c b/drivers/pinctrl/intel/pinctrl-baytrail.c
index 37300634b7d2..fa3c5758ac67 100644
--- a/drivers/pinctrl/intel/pinctrl-baytrail.c
+++ b/drivers/pinctrl/intel/pinctrl-baytrail.c
@@ -731,16 +731,23 @@ static void __iomem *byt_gpio_reg(struct byt_gpio *vg, unsigned int offset,
int reg)
{
struct byt_community *comm = byt_get_community(vg, offset);
- u32 reg_offset = 0;
+ u32 reg_offset;
if (!comm)
return NULL;
offset -= comm->pin_base;
- if (reg == BYT_INT_STAT_REG)
+ switch (reg) {
+ case BYT_INT_STAT_REG:
reg_offset = (offset / 32) * 4;
- else
+ break;
+ case BYT_DEBOUNCE_REG:
+ reg_offset = 0;
+ break;
+ default:
reg_offset = comm->pad_map[offset] * 16;
+ break;
+ }
return comm->reg_base + reg_offset + reg;
}
@@ -1092,6 +1099,7 @@ static int byt_pin_config_get(struct pinctrl_dev *pctl_dev, unsigned int offset,
enum pin_config_param param = pinconf_to_config_param(*config);
void __iomem *conf_reg = byt_gpio_reg(vg, offset, BYT_CONF0_REG);
void __iomem *val_reg = byt_gpio_reg(vg, offset, BYT_VAL_REG);
+ void __iomem *db_reg = byt_gpio_reg(vg, offset, BYT_DEBOUNCE_REG);
unsigned long flags;
u32 conf, pull, val, debounce;
u16 arg = 0;
@@ -1128,7 +1136,7 @@ static int byt_pin_config_get(struct pinctrl_dev *pctl_dev, unsigned int offset,
return -EINVAL;
raw_spin_lock_irqsave(&vg->lock, flags);
- debounce = readl(byt_gpio_reg(vg, offset, BYT_DEBOUNCE_REG));
+ debounce = readl(db_reg);
raw_spin_unlock_irqrestore(&vg->lock, flags);
switch (debounce & BYT_DEBOUNCE_PULSE_MASK) {
@@ -1176,6 +1184,7 @@ static int byt_pin_config_set(struct pinctrl_dev *pctl_dev,
unsigned int param, arg;
void __iomem *conf_reg = byt_gpio_reg(vg, offset, BYT_CONF0_REG);
void __iomem *val_reg = byt_gpio_reg(vg, offset, BYT_VAL_REG);
+ void __iomem *db_reg = byt_gpio_reg(vg, offset, BYT_DEBOUNCE_REG);
unsigned long flags;
u32 conf, val, debounce;
int i, ret = 0;
@@ -1238,36 +1247,44 @@ static int byt_pin_config_set(struct pinctrl_dev *pctl_dev,
break;
case PIN_CONFIG_INPUT_DEBOUNCE:
- debounce = readl(byt_gpio_reg(vg, offset,
- BYT_DEBOUNCE_REG));
- conf &= ~BYT_DEBOUNCE_PULSE_MASK;
+ debounce = readl(db_reg);
+ debounce &= ~BYT_DEBOUNCE_PULSE_MASK;
+
+ if (arg)
+ conf |= BYT_DEBOUNCE_EN;
+ else
+ conf &= ~BYT_DEBOUNCE_EN;
switch (arg) {
case 375:
- conf |= BYT_DEBOUNCE_PULSE_375US;
+ debounce |= BYT_DEBOUNCE_PULSE_375US;
break;
case 750:
- conf |= BYT_DEBOUNCE_PULSE_750US;
+ debounce |= BYT_DEBOUNCE_PULSE_750US;
break;
case 1500:
- conf |= BYT_DEBOUNCE_PULSE_1500US;
+ debounce |= BYT_DEBOUNCE_PULSE_1500US;
break;
case 3000:
- conf |= BYT_DEBOUNCE_PULSE_3MS;
+ debounce |= BYT_DEBOUNCE_PULSE_3MS;
break;
case 6000:
- conf |= BYT_DEBOUNCE_PULSE_6MS;
+ debounce |= BYT_DEBOUNCE_PULSE_6MS;
break;
case 12000:
- conf |= BYT_DEBOUNCE_PULSE_12MS;
+ debounce |= BYT_DEBOUNCE_PULSE_12MS;
break;
case 24000:
- conf |= BYT_DEBOUNCE_PULSE_24MS;
+ debounce |= BYT_DEBOUNCE_PULSE_24MS;
break;
default:
- ret = -EINVAL;
+ if (arg)
+ ret = -EINVAL;
+ break;
}
+ if (!ret)
+ writel(debounce, db_reg);
break;
default:
ret = -ENOTSUPP;
@@ -1449,7 +1466,7 @@ static void byt_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip)
val & BYT_INPUT_EN ? " " : "in",
val & BYT_OUTPUT_EN ? " " : "out",
val & BYT_LEVEL ? "hi" : "lo",
- comm->pad_map[i], comm->pad_map[i] * 32,
+ comm->pad_map[i], comm->pad_map[i] * 16,
conf0 & 0x7,
conf0 & BYT_TRIG_NEG ? " fall" : " ",
conf0 & BYT_TRIG_POS ? " rise" : " ",
@@ -1606,7 +1623,9 @@ static void byt_gpio_irq_handler(struct irq_desc *desc)
continue;
}
+ raw_spin_lock(&vg->lock);
pending = readl(reg);
+ raw_spin_unlock(&vg->lock);
for_each_set_bit(pin, &pending, 32) {
virq = irq_find_mapping(vg->chip.irqdomain, base + pin);
generic_handle_irq(virq);
@@ -1617,6 +1636,8 @@ static void byt_gpio_irq_handler(struct irq_desc *desc)
static void byt_gpio_irq_init_hw(struct byt_gpio *vg)
{
+ struct gpio_chip *gc = &vg->chip;
+ struct device *dev = &vg->pdev->dev;
void __iomem *reg;
u32 base, value;
int i;
@@ -1638,10 +1659,12 @@ static void byt_gpio_irq_init_hw(struct byt_gpio *vg)
}
value = readl(reg);
- if ((value & BYT_PIN_MUX) == byt_get_gpio_mux(vg, i) &&
- !(value & BYT_DIRECT_IRQ_EN)) {
+ if (value & BYT_DIRECT_IRQ_EN) {
+ clear_bit(i, gc->irq_valid_mask);
+ dev_dbg(dev, "excluding GPIO %d from IRQ domain\n", i);
+ } else if ((value & BYT_PIN_MUX) == byt_get_gpio_mux(vg, i)) {
byt_gpio_clear_triggering(vg, i);
- dev_dbg(&vg->pdev->dev, "disabling GPIO %d\n", i);
+ dev_dbg(dev, "disabling GPIO %d\n", i);
}
}
@@ -1680,12 +1703,13 @@ static int byt_gpio_probe(struct byt_gpio *vg)
gc->can_sleep = false;
gc->parent = &vg->pdev->dev;
gc->ngpio = vg->soc_data->npins;
+ gc->irq_need_valid_mask = true;
#ifdef CONFIG_PM_SLEEP
vg->saved_context = devm_kcalloc(&vg->pdev->dev, gc->ngpio,
sizeof(*vg->saved_context), GFP_KERNEL);
#endif
- ret = gpiochip_add_data(gc, vg);
+ ret = devm_gpiochip_add_data(&vg->pdev->dev, gc, vg);
if (ret) {
dev_err(&vg->pdev->dev, "failed adding byt-gpio chip\n");
return ret;
@@ -1695,7 +1719,7 @@ static int byt_gpio_probe(struct byt_gpio *vg)
0, 0, vg->soc_data->npins);
if (ret) {
dev_err(&vg->pdev->dev, "failed to add GPIO pin range\n");
- goto fail;
+ return ret;
}
/* set up interrupts */
@@ -1706,7 +1730,7 @@ static int byt_gpio_probe(struct byt_gpio *vg)
handle_bad_irq, IRQ_TYPE_NONE);
if (ret) {
dev_err(&vg->pdev->dev, "failed to add irqchip\n");
- goto fail;
+ return ret;
}
gpiochip_set_chained_irqchip(gc, &byt_irqchip,
@@ -1715,11 +1739,6 @@ static int byt_gpio_probe(struct byt_gpio *vg)
}
return ret;
-
-fail:
- gpiochip_remove(&vg->chip);
-
- return ret;
}
static int byt_set_soc_data(struct byt_gpio *vg,
@@ -1802,7 +1821,7 @@ static int byt_pinctrl_probe(struct platform_device *pdev)
vg->pctl_desc.pins = vg->soc_data->pins;
vg->pctl_desc.npins = vg->soc_data->npins;
- vg->pctl_dev = pinctrl_register(&vg->pctl_desc, &pdev->dev, vg);
+ vg->pctl_dev = devm_pinctrl_register(&pdev->dev, &vg->pctl_desc, vg);
if (IS_ERR(vg->pctl_dev)) {
dev_err(&pdev->dev, "failed to register pinctrl driver\n");
return PTR_ERR(vg->pctl_dev);
@@ -1811,10 +1830,8 @@ static int byt_pinctrl_probe(struct platform_device *pdev)
raw_spin_lock_init(&vg->lock);
ret = byt_gpio_probe(vg);
- if (ret) {
- pinctrl_unregister(vg->pctl_dev);
+ if (ret)
return ret;
- }
platform_set_drvdata(pdev, vg);
pm_runtime_enable(&pdev->dev);
diff --git a/drivers/pinctrl/intel/pinctrl-broxton.c b/drivers/pinctrl/intel/pinctrl-broxton.c
index 59cb7a6fc5be..e6e6fd112585 100644
--- a/drivers/pinctrl/intel/pinctrl-broxton.c
+++ b/drivers/pinctrl/intel/pinctrl-broxton.c
@@ -19,7 +19,7 @@
#define BXT_PAD_OWN 0x020
#define BXT_HOSTSW_OWN 0x080
-#define BXT_PADCFGLOCK 0x090
+#define BXT_PADCFGLOCK 0x060
#define BXT_GPI_IE 0x110
#define BXT_COMMUNITY(s, e) \
@@ -1004,8 +1004,8 @@ static const struct acpi_device_id bxt_pinctrl_acpi_match[] = {
MODULE_DEVICE_TABLE(acpi, bxt_pinctrl_acpi_match);
static const struct platform_device_id bxt_pinctrl_platform_ids[] = {
- { "apl-pinctrl", (kernel_ulong_t)&apl_pinctrl_soc_data },
- { "broxton-pinctrl", (kernel_ulong_t)&bxt_pinctrl_soc_data },
+ { "apollolake-pinctrl", (kernel_ulong_t)apl_pinctrl_soc_data },
+ { "broxton-pinctrl", (kernel_ulong_t)bxt_pinctrl_soc_data },
{ },
};
@@ -1058,7 +1058,6 @@ static const struct dev_pm_ops bxt_pinctrl_pm_ops = {
static struct platform_driver bxt_pinctrl_driver = {
.probe = bxt_pinctrl_probe,
- .remove = intel_pinctrl_remove,
.driver = {
.name = "broxton-pinctrl",
.acpi_match_table = bxt_pinctrl_acpi_match,
diff --git a/drivers/pinctrl/intel/pinctrl-cherryview.c b/drivers/pinctrl/intel/pinctrl-cherryview.c
index 5e66860a5e67..f80134e3e0b6 100644
--- a/drivers/pinctrl/intel/pinctrl-cherryview.c
+++ b/drivers/pinctrl/intel/pinctrl-cherryview.c
@@ -1059,7 +1059,7 @@ static int chv_config_get(struct pinctrl_dev *pctldev, unsigned pin,
}
static int chv_config_set_pull(struct chv_pinctrl *pctrl, unsigned pin,
- enum pin_config_param param, u16 arg)
+ enum pin_config_param param, u32 arg)
{
void __iomem *reg = chv_padreg(pctrl, pin, CHV_PADCTRL0);
unsigned long flags;
@@ -1151,7 +1151,7 @@ static int chv_config_set(struct pinctrl_dev *pctldev, unsigned pin,
struct chv_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
enum pin_config_param param;
int i, ret;
- u16 arg;
+ u32 arg;
if (chv_pad_locked(pctrl, pin))
return -EBUSY;
diff --git a/drivers/pinctrl/intel/pinctrl-geminilake.c b/drivers/pinctrl/intel/pinctrl-geminilake.c
new file mode 100644
index 000000000000..a6b94c930007
--- /dev/null
+++ b/drivers/pinctrl/intel/pinctrl-geminilake.c
@@ -0,0 +1,512 @@
+/*
+ * Intel Gemini Lake SoC pinctrl/GPIO driver
+ *
+ * Copyright (C) 2017 Intel Corporation
+ * Author: Mika Westerberg <mika.westerberg@linux.intel.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/acpi.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/pm.h>
+#include <linux/pinctrl/pinctrl.h>
+
+#include "pinctrl-intel.h"
+
+#define GLK_PAD_OWN 0x020
+#define GLK_HOSTSW_OWN 0x0b0
+#define GLK_PADCFGLOCK 0x080
+#define GLK_GPI_IE 0x110
+
+#define GLK_COMMUNITY(s, e) \
+ { \
+ .padown_offset = GLK_PAD_OWN, \
+ .padcfglock_offset = GLK_PADCFGLOCK, \
+ .hostown_offset = GLK_HOSTSW_OWN, \
+ .ie_offset = GLK_GPI_IE, \
+ .gpp_size = 32, \
+ .pin_base = (s), \
+ .npins = ((e) - (s) + 1), \
+ }
+
+/* GLK */
+static const struct pinctrl_pin_desc glk_northwest_pins[] = {
+ PINCTRL_PIN(0, "TCK"),
+ PINCTRL_PIN(1, "TRST_B"),
+ PINCTRL_PIN(2, "TMS"),
+ PINCTRL_PIN(3, "TDI"),
+ PINCTRL_PIN(4, "TDO"),
+ PINCTRL_PIN(5, "JTAGX"),
+ PINCTRL_PIN(6, "CX_PREQ_B"),
+ PINCTRL_PIN(7, "CX_PRDY_B"),
+ PINCTRL_PIN(8, "GPIO_8"),
+ PINCTRL_PIN(9, "GPIO_9"),
+ PINCTRL_PIN(10, "GPIO_10"),
+ PINCTRL_PIN(11, "GPIO_11"),
+ PINCTRL_PIN(12, "GPIO_12"),
+ PINCTRL_PIN(13, "GPIO_13"),
+ PINCTRL_PIN(14, "GPIO_14"),
+ PINCTRL_PIN(15, "GPIO_15"),
+ PINCTRL_PIN(16, "GPIO_16"),
+ PINCTRL_PIN(17, "GPIO_17"),
+ PINCTRL_PIN(18, "GPIO_18"),
+ PINCTRL_PIN(19, "GPIO_19"),
+ PINCTRL_PIN(20, "GPIO_20"),
+ PINCTRL_PIN(21, "GPIO_21"),
+ PINCTRL_PIN(22, "GPIO_22"),
+ PINCTRL_PIN(23, "GPIO_23"),
+ PINCTRL_PIN(24, "GPIO_24"),
+ PINCTRL_PIN(25, "GPIO_25"),
+ PINCTRL_PIN(26, "GPIO_26"),
+ PINCTRL_PIN(27, "GPIO_27"),
+ PINCTRL_PIN(28, "GPIO_28"),
+ PINCTRL_PIN(29, "GPIO_29"),
+ PINCTRL_PIN(30, "GPIO_30"),
+ PINCTRL_PIN(31, "GPIO_31"),
+ PINCTRL_PIN(32, "GPIO_32"),
+ PINCTRL_PIN(33, "GPIO_33"),
+ PINCTRL_PIN(34, "GPIO_34"),
+ PINCTRL_PIN(35, "GPIO_35"),
+ PINCTRL_PIN(36, "GPIO_36"),
+ PINCTRL_PIN(37, "GPIO_37"),
+ PINCTRL_PIN(38, "GPIO_38"),
+ PINCTRL_PIN(39, "GPIO_39"),
+ PINCTRL_PIN(40, "GPIO_40"),
+ PINCTRL_PIN(41, "GPIO_41"),
+ PINCTRL_PIN(42, "GP_INTD_DSI_TE1"),
+ PINCTRL_PIN(43, "GP_INTD_DSI_TE2"),
+ PINCTRL_PIN(44, "USB_OC0_B"),
+ PINCTRL_PIN(45, "USB_OC1_B"),
+ PINCTRL_PIN(46, "DSI_I2C_SDA"),
+ PINCTRL_PIN(47, "DSI_I2C_SCL"),
+ PINCTRL_PIN(48, "PMC_I2C_SDA"),
+ PINCTRL_PIN(49, "PMC_I2C_SCL"),
+ PINCTRL_PIN(50, "LPSS_I2C0_SDA"),
+ PINCTRL_PIN(51, "LPSS_I2C0_SCL"),
+ PINCTRL_PIN(52, "LPSS_I2C1_SDA"),
+ PINCTRL_PIN(53, "LPSS_I2C1_SCL"),
+ PINCTRL_PIN(54, "LPSS_I2C2_SDA"),
+ PINCTRL_PIN(55, "LPSS_I2C2_SCL"),
+ PINCTRL_PIN(56, "LPSS_I2C3_SDA"),
+ PINCTRL_PIN(57, "LPSS_I2C3_SCL"),
+ PINCTRL_PIN(58, "LPSS_I2C4_SDA"),
+ PINCTRL_PIN(59, "LPSS_I2C4_SCL"),
+ PINCTRL_PIN(60, "LPSS_UART0_RXD"),
+ PINCTRL_PIN(61, "LPSS_UART0_TXD"),
+ PINCTRL_PIN(62, "LPSS_UART0_RTS_B"),
+ PINCTRL_PIN(63, "LPSS_UART0_CTS_B"),
+ PINCTRL_PIN(64, "LPSS_UART2_RXD"),
+ PINCTRL_PIN(65, "LPSS_UART2_TXD"),
+ PINCTRL_PIN(66, "LPSS_UART2_RTS_B"),
+ PINCTRL_PIN(67, "LPSS_UART2_CTS_B"),
+ PINCTRL_PIN(68, "PMC_SPI_FS0"),
+ PINCTRL_PIN(69, "PMC_SPI_FS1"),
+ PINCTRL_PIN(70, "PMC_SPI_FS2"),
+ PINCTRL_PIN(71, "PMC_SPI_RXD"),
+ PINCTRL_PIN(72, "PMC_SPI_TXD"),
+ PINCTRL_PIN(73, "PMC_SPI_CLK"),
+ PINCTRL_PIN(74, "THERMTRIP_B"),
+ PINCTRL_PIN(75, "PROCHOT_B"),
+ PINCTRL_PIN(76, "EMMC_RST_B"),
+ PINCTRL_PIN(77, "GPIO_212"),
+ PINCTRL_PIN(78, "GPIO_213"),
+ PINCTRL_PIN(79, "GPIO_214"),
+};
+
+static const unsigned int glk_northwest_uart1_pins[] = { 26, 27, 28, 29 };
+static const unsigned int glk_northwest_pwm0_pins[] = { 42 };
+static const unsigned int glk_northwest_pwm1_pins[] = { 43 };
+static const unsigned int glk_northwest_pwm2_pins[] = { 44 };
+static const unsigned int glk_northwest_pwm3_pins[] = { 45 };
+static const unsigned int glk_northwest_i2c0_pins[] = { 50, 51 };
+static const unsigned int glk_northwest_i2c1_pins[] = { 52, 53 };
+static const unsigned int glk_northwest_i2c2_pins[] = { 54, 55 };
+static const unsigned int glk_northwest_i2c3_pins[] = { 56, 57 };
+static const unsigned int glk_northwest_i2c4_pins[] = { 58, 59 };
+static const unsigned int glk_northwest_uart0_pins[] = { 60, 61, 62, 63 };
+static const unsigned int glk_northwest_uart2_pins[] = { 64, 65, 66, 67 };
+
+static const struct intel_pingroup glk_northwest_groups[] = {
+ PIN_GROUP("uart1_grp", glk_northwest_uart1_pins, 2),
+ PIN_GROUP("pwm0_grp", glk_northwest_pwm0_pins, 2),
+ PIN_GROUP("pwm1_grp", glk_northwest_pwm1_pins, 2),
+ PIN_GROUP("pwm2_grp", glk_northwest_pwm2_pins, 2),
+ PIN_GROUP("pwm3_grp", glk_northwest_pwm3_pins, 2),
+ PIN_GROUP("i2c0_grp", glk_northwest_i2c0_pins, 1),
+ PIN_GROUP("i2c1_grp", glk_northwest_i2c1_pins, 1),
+ PIN_GROUP("i2c2_grp", glk_northwest_i2c2_pins, 1),
+ PIN_GROUP("i2c3_grp", glk_northwest_i2c3_pins, 1),
+ PIN_GROUP("i2c4_grp", glk_northwest_i2c4_pins, 1),
+ PIN_GROUP("uart0_grp", glk_northwest_uart0_pins, 1),
+ PIN_GROUP("uart2_grp", glk_northwest_uart2_pins, 1),
+};
+
+static const char * const glk_northwest_uart1_groups[] = { "uart1_grp" };
+static const char * const glk_northwest_pwm0_groups[] = { "pwm0_grp" };
+static const char * const glk_northwest_pwm1_groups[] = { "pwm1_grp" };
+static const char * const glk_northwest_pwm2_groups[] = { "pwm2_grp" };
+static const char * const glk_northwest_pwm3_groups[] = { "pwm3_grp" };
+static const char * const glk_northwest_i2c0_groups[] = { "i2c0_grp" };
+static const char * const glk_northwest_i2c1_groups[] = { "i2c1_grp" };
+static const char * const glk_northwest_i2c2_groups[] = { "i2c2_grp" };
+static const char * const glk_northwest_i2c3_groups[] = { "i2c3_grp" };
+static const char * const glk_northwest_i2c4_groups[] = { "i2c4_grp" };
+static const char * const glk_northwest_uart0_groups[] = { "uart0_grp" };
+static const char * const glk_northwest_uart2_groups[] = { "uart2_grp" };
+
+static const struct intel_function glk_northwest_functions[] = {
+ FUNCTION("uart1", glk_northwest_uart1_groups),
+ FUNCTION("pmw0", glk_northwest_pwm0_groups),
+ FUNCTION("pmw1", glk_northwest_pwm1_groups),
+ FUNCTION("pmw2", glk_northwest_pwm2_groups),
+ FUNCTION("pmw3", glk_northwest_pwm3_groups),
+ FUNCTION("i2c0", glk_northwest_i2c0_groups),
+ FUNCTION("i2c1", glk_northwest_i2c1_groups),
+ FUNCTION("i2c2", glk_northwest_i2c2_groups),
+ FUNCTION("i2c3", glk_northwest_i2c3_groups),
+ FUNCTION("i2c4", glk_northwest_i2c4_groups),
+ FUNCTION("uart0", glk_northwest_uart0_groups),
+ FUNCTION("uart2", glk_northwest_uart2_groups),
+};
+
+static const struct intel_community glk_northwest_communities[] = {
+ GLK_COMMUNITY(0, 79),
+};
+
+static const struct intel_pinctrl_soc_data glk_northwest_soc_data = {
+ .uid = "1",
+ .pins = glk_northwest_pins,
+ .npins = ARRAY_SIZE(glk_northwest_pins),
+ .groups = glk_northwest_groups,
+ .ngroups = ARRAY_SIZE(glk_northwest_groups),
+ .functions = glk_northwest_functions,
+ .nfunctions = ARRAY_SIZE(glk_northwest_functions),
+ .communities = glk_northwest_communities,
+ .ncommunities = ARRAY_SIZE(glk_northwest_communities),
+};
+
+static const struct pinctrl_pin_desc glk_north_pins[] = {
+ PINCTRL_PIN(0, "SVID0_ALERT_B"),
+ PINCTRL_PIN(1, "SVID0_DATA"),
+ PINCTRL_PIN(2, "SVID0_CLK"),
+ PINCTRL_PIN(3, "LPSS_SPI_0_CLK"),
+ PINCTRL_PIN(4, "LPSS_SPI_0_FS0"),
+ PINCTRL_PIN(5, "LPSS_SPI_0_FS1"),
+ PINCTRL_PIN(6, "LPSS_SPI_0_RXD"),
+ PINCTRL_PIN(7, "LPSS_SPI_0_TXD"),
+ PINCTRL_PIN(8, "LPSS_SPI_1_CLK"),
+ PINCTRL_PIN(9, "LPSS_SPI_1_FS0"),
+ PINCTRL_PIN(10, "LPSS_SPI_1_FS1"),
+ PINCTRL_PIN(11, "LPSS_SPI_1_FS2"),
+ PINCTRL_PIN(12, "LPSS_SPI_1_RXD"),
+ PINCTRL_PIN(13, "LPSS_SPI_1_TXD"),
+ PINCTRL_PIN(14, "FST_SPI_CS0_B"),
+ PINCTRL_PIN(15, "FST_SPI_CS1_B"),
+ PINCTRL_PIN(16, "FST_SPI_MOSI_IO0"),
+ PINCTRL_PIN(17, "FST_SPI_MISO_IO1"),
+ PINCTRL_PIN(18, "FST_SPI_IO2"),
+ PINCTRL_PIN(19, "FST_SPI_IO3"),
+ PINCTRL_PIN(20, "FST_SPI_CLK"),
+ PINCTRL_PIN(21, "FST_SPI_CLK_FB"),
+ PINCTRL_PIN(22, "PMU_PLTRST_B"),
+ PINCTRL_PIN(23, "PMU_PWRBTN_B"),
+ PINCTRL_PIN(24, "PMU_SLP_S0_B"),
+ PINCTRL_PIN(25, "PMU_SLP_S3_B"),
+ PINCTRL_PIN(26, "PMU_SLP_S4_B"),
+ PINCTRL_PIN(27, "SUSPWRDNACK"),
+ PINCTRL_PIN(28, "EMMC_PWR_EN_B"),
+ PINCTRL_PIN(29, "PMU_AC_PRESENT"),
+ PINCTRL_PIN(30, "PMU_BATLOW_B"),
+ PINCTRL_PIN(31, "PMU_RESETBUTTON_B"),
+ PINCTRL_PIN(32, "PMU_SUSCLK"),
+ PINCTRL_PIN(33, "SUS_STAT_B"),
+ PINCTRL_PIN(34, "LPSS_I2C5_SDA"),
+ PINCTRL_PIN(35, "LPSS_I2C5_SCL"),
+ PINCTRL_PIN(36, "LPSS_I2C6_SDA"),
+ PINCTRL_PIN(37, "LPSS_I2C6_SCL"),
+ PINCTRL_PIN(38, "LPSS_I2C7_SDA"),
+ PINCTRL_PIN(39, "LPSS_I2C7_SCL"),
+ PINCTRL_PIN(40, "PCIE_WAKE0_B"),
+ PINCTRL_PIN(41, "PCIE_WAKE1_B"),
+ PINCTRL_PIN(42, "PCIE_WAKE2_B"),
+ PINCTRL_PIN(43, "PCIE_WAKE3_B"),
+ PINCTRL_PIN(44, "PCIE_CLKREQ0_B"),
+ PINCTRL_PIN(45, "PCIE_CLKREQ1_B"),
+ PINCTRL_PIN(46, "PCIE_CLKREQ2_B"),
+ PINCTRL_PIN(47, "PCIE_CLKREQ3_B"),
+ PINCTRL_PIN(48, "HV_DDI0_DDC_SDA"),
+ PINCTRL_PIN(49, "HV_DDI0_DDC_SCL"),
+ PINCTRL_PIN(50, "HV_DDI1_DDC_SDA"),
+ PINCTRL_PIN(51, "HV_DDI1_DDC_SCL"),
+ PINCTRL_PIN(52, "PANEL0_VDDEN"),
+ PINCTRL_PIN(53, "PANEL0_BKLTEN"),
+ PINCTRL_PIN(54, "PANEL0_BKLTCTL"),
+ PINCTRL_PIN(55, "HV_DDI0_HPD"),
+ PINCTRL_PIN(56, "HV_DDI1_HPD"),
+ PINCTRL_PIN(57, "HV_EDP_HPD"),
+ PINCTRL_PIN(58, "GPIO_134"),
+ PINCTRL_PIN(59, "GPIO_135"),
+ PINCTRL_PIN(60, "GPIO_136"),
+ PINCTRL_PIN(61, "GPIO_137"),
+ PINCTRL_PIN(62, "GPIO_138"),
+ PINCTRL_PIN(63, "GPIO_139"),
+ PINCTRL_PIN(64, "GPIO_140"),
+ PINCTRL_PIN(65, "GPIO_141"),
+ PINCTRL_PIN(66, "GPIO_142"),
+ PINCTRL_PIN(67, "GPIO_143"),
+ PINCTRL_PIN(68, "GPIO_144"),
+ PINCTRL_PIN(69, "GPIO_145"),
+ PINCTRL_PIN(70, "GPIO_146"),
+ PINCTRL_PIN(71, "LPC_ILB_SERIRQ"),
+ PINCTRL_PIN(72, "LPC_CLKOUT0"),
+ PINCTRL_PIN(73, "LPC_CLKOUT1"),
+ PINCTRL_PIN(74, "LPC_AD0"),
+ PINCTRL_PIN(75, "LPC_AD1"),
+ PINCTRL_PIN(76, "LPC_AD2"),
+ PINCTRL_PIN(77, "LPC_AD3"),
+ PINCTRL_PIN(78, "LPC_CLKRUNB"),
+ PINCTRL_PIN(79, "LPC_FRAMEB"),
+};
+
+static const unsigned int glk_north_spi0_pins[] = { 3, 4, 5, 6, 7 };
+static const unsigned int glk_north_spi1_pins[] = { 8, 9, 10, 11, 12, 13 };
+static const unsigned int glk_north_i2c5_pins[] = { 34, 35 };
+static const unsigned int glk_north_i2c6_pins[] = { 36, 37 };
+static const unsigned int glk_north_i2c7_pins[] = { 38, 39 };
+static const unsigned int glk_north_uart0_pins[] = { 62, 63, 64, 65 };
+static const unsigned int glk_north_spi0b_pins[] = { 66, 67, 68, 69, 70 };
+
+static const struct intel_pingroup glk_north_groups[] = {
+ PIN_GROUP("spi0_grp", glk_north_spi0_pins, 1),
+ PIN_GROUP("spi1_grp", glk_north_spi1_pins, 1),
+ PIN_GROUP("i2c5_grp", glk_north_i2c5_pins, 1),
+ PIN_GROUP("i2c6_grp", glk_north_i2c6_pins, 1),
+ PIN_GROUP("i2c7_grp", glk_north_i2c7_pins, 1),
+ PIN_GROUP("uart0_grp", glk_north_uart0_pins, 2),
+ PIN_GROUP("spi0b_grp", glk_north_spi0b_pins, 2),
+};
+
+static const char * const glk_north_spi0_groups[] = { "spi0_grp", "spi0b_grp" };
+static const char * const glk_north_spi1_groups[] = { "spi1_grp" };
+static const char * const glk_north_i2c5_groups[] = { "i2c5_grp" };
+static const char * const glk_north_i2c6_groups[] = { "i2c6_grp" };
+static const char * const glk_north_i2c7_groups[] = { "i2c7_grp" };
+static const char * const glk_north_uart0_groups[] = { "uart0_grp" };
+
+static const struct intel_function glk_north_functions[] = {
+ FUNCTION("spi0", glk_north_spi0_groups),
+ FUNCTION("spi1", glk_north_spi1_groups),
+ FUNCTION("i2c5", glk_north_i2c5_groups),
+ FUNCTION("i2c6", glk_north_i2c6_groups),
+ FUNCTION("i2c7", glk_north_i2c7_groups),
+ FUNCTION("uart0", glk_north_uart0_groups),
+};
+
+static const struct intel_community glk_north_communities[] = {
+ GLK_COMMUNITY(0, 79),
+};
+
+static const struct intel_pinctrl_soc_data glk_north_soc_data = {
+ .uid = "2",
+ .pins = glk_north_pins,
+ .npins = ARRAY_SIZE(glk_north_pins),
+ .groups = glk_north_groups,
+ .ngroups = ARRAY_SIZE(glk_north_groups),
+ .functions = glk_north_functions,
+ .nfunctions = ARRAY_SIZE(glk_north_functions),
+ .communities = glk_north_communities,
+ .ncommunities = ARRAY_SIZE(glk_north_communities),
+};
+
+static const struct pinctrl_pin_desc glk_audio_pins[] = {
+ PINCTRL_PIN(0, "AVS_I2S0_MCLK"),
+ PINCTRL_PIN(1, "AVS_I2S0_BCLK"),
+ PINCTRL_PIN(2, "AVS_I2S0_WS_SYNC"),
+ PINCTRL_PIN(3, "AVS_I2S0_SDI"),
+ PINCTRL_PIN(4, "AVS_I2S0_SDO"),
+ PINCTRL_PIN(5, "AVS_I2S1_MCLK"),
+ PINCTRL_PIN(6, "AVS_I2S1_BCLK"),
+ PINCTRL_PIN(7, "AVS_I2S1_WS_SYNC"),
+ PINCTRL_PIN(8, "AVS_I2S1_SDI"),
+ PINCTRL_PIN(9, "AVS_I2S1_SDO"),
+ PINCTRL_PIN(10, "AVS_HDA_BCLK"),
+ PINCTRL_PIN(11, "AVS_HDA_WS_SYNC"),
+ PINCTRL_PIN(12, "AVS_HDA_SDI"),
+ PINCTRL_PIN(13, "AVS_HDA_SDO"),
+ PINCTRL_PIN(14, "AVS_HDA_RSTB"),
+ PINCTRL_PIN(15, "AVS_M_CLK_A1"),
+ PINCTRL_PIN(16, "AVS_M_CLK_B1"),
+ PINCTRL_PIN(17, "AVS_M_DATA_1"),
+ PINCTRL_PIN(18, "AVS_M_CLK_AB2"),
+ PINCTRL_PIN(19, "AVS_M_DATA_2"),
+};
+
+static const struct intel_community glk_audio_communities[] = {
+ GLK_COMMUNITY(0, 19),
+};
+
+static const struct intel_pinctrl_soc_data glk_audio_soc_data = {
+ .uid = "3",
+ .pins = glk_audio_pins,
+ .npins = ARRAY_SIZE(glk_audio_pins),
+ .communities = glk_audio_communities,
+ .ncommunities = ARRAY_SIZE(glk_audio_communities),
+};
+
+static const struct pinctrl_pin_desc glk_scc_pins[] = {
+ PINCTRL_PIN(0, "SMB_ALERTB"),
+ PINCTRL_PIN(1, "SMB_CLK"),
+ PINCTRL_PIN(2, "SMB_DATA"),
+ PINCTRL_PIN(3, "SDCARD_LVL_WP"),
+ PINCTRL_PIN(4, "SDCARD_CLK"),
+ PINCTRL_PIN(5, "SDCARD_CLK_FB"),
+ PINCTRL_PIN(6, "SDCARD_D0"),
+ PINCTRL_PIN(7, "SDCARD_D1"),
+ PINCTRL_PIN(8, "SDCARD_D2"),
+ PINCTRL_PIN(9, "SDCARD_D3"),
+ PINCTRL_PIN(10, "SDCARD_CMD"),
+ PINCTRL_PIN(11, "SDCARD_CD_B"),
+ PINCTRL_PIN(12, "SDCARD_PWR_DOWN_B"),
+ PINCTRL_PIN(13, "GPIO_210"),
+ PINCTRL_PIN(14, "OSC_CLK_OUT_0"),
+ PINCTRL_PIN(15, "OSC_CLK_OUT_1"),
+ PINCTRL_PIN(16, "CNV_BRI_DT"),
+ PINCTRL_PIN(17, "CNV_BRI_RSP"),
+ PINCTRL_PIN(18, "CNV_RGI_DT"),
+ PINCTRL_PIN(19, "CNV_RGI_RSP"),
+ PINCTRL_PIN(20, "CNV_RF_RESET_B"),
+ PINCTRL_PIN(21, "XTAL_CLKREQ"),
+ PINCTRL_PIN(22, "SDIO_CLK_FB"),
+ PINCTRL_PIN(23, "EMMC0_CLK"),
+ PINCTRL_PIN(24, "EMMC0_CLK_FB"),
+ PINCTRL_PIN(25, "EMMC0_D0"),
+ PINCTRL_PIN(26, "EMMC0_D1"),
+ PINCTRL_PIN(27, "EMMC0_D2"),
+ PINCTRL_PIN(28, "EMMC0_D3"),
+ PINCTRL_PIN(29, "EMMC0_D4"),
+ PINCTRL_PIN(30, "EMMC0_D5"),
+ PINCTRL_PIN(31, "EMMC0_D6"),
+ PINCTRL_PIN(32, "EMMC0_D7"),
+ PINCTRL_PIN(33, "EMMC0_CMD"),
+ PINCTRL_PIN(34, "EMMC0_STROBE"),
+};
+
+static const unsigned int glk_scc_i2c7_pins[] = { 1, 2 };
+static const unsigned int glk_scc_sdcard_pins[] = {
+ 3, 4, 5, 6, 7, 8, 9, 10, 11, 12,
+};
+static const unsigned int glk_scc_sdio_pins[] = { 16, 17, 18, 19, 20, 21, 22 };
+static const unsigned int glk_scc_uart1_pins[] = { 16, 17, 18, 19 };
+static const unsigned int glk_scc_emmc_pins[] = {
+ 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34,
+};
+
+static const struct intel_pingroup glk_scc_groups[] = {
+ PIN_GROUP("i2c7_grp", glk_scc_i2c7_pins, 2),
+ PIN_GROUP("sdcard_grp", glk_scc_sdcard_pins, 1),
+ PIN_GROUP("sdio_grp", glk_scc_sdio_pins, 2),
+ PIN_GROUP("uart1_grp", glk_scc_uart1_pins, 3),
+ PIN_GROUP("emmc_grp", glk_scc_emmc_pins, 1),
+};
+
+static const char * const glk_scc_i2c7_groups[] = { "i2c7_grp" };
+static const char * const glk_scc_sdcard_groups[] = { "sdcard_grp" };
+static const char * const glk_scc_sdio_groups[] = { "sdio_grp" };
+static const char * const glk_scc_uart1_groups[] = { "uart1_grp" };
+static const char * const glk_scc_emmc_groups[] = { "emmc_grp" };
+
+static const struct intel_function glk_scc_functions[] = {
+ FUNCTION("i2c7", glk_scc_i2c7_groups),
+ FUNCTION("sdcard", glk_scc_sdcard_groups),
+ FUNCTION("sdio", glk_scc_sdio_groups),
+ FUNCTION("uart1", glk_scc_uart1_groups),
+ FUNCTION("emmc", glk_scc_emmc_groups),
+};
+
+static const struct intel_community glk_scc_communities[] = {
+ GLK_COMMUNITY(0, 34),
+};
+
+static const struct intel_pinctrl_soc_data glk_scc_soc_data = {
+ .uid = "4",
+ .pins = glk_scc_pins,
+ .npins = ARRAY_SIZE(glk_scc_pins),
+ .groups = glk_scc_groups,
+ .ngroups = ARRAY_SIZE(glk_scc_groups),
+ .functions = glk_scc_functions,
+ .nfunctions = ARRAY_SIZE(glk_scc_functions),
+ .communities = glk_scc_communities,
+ .ncommunities = ARRAY_SIZE(glk_scc_communities),
+};
+
+static const struct intel_pinctrl_soc_data *glk_pinctrl_soc_data[] = {
+ &glk_northwest_soc_data,
+ &glk_north_soc_data,
+ &glk_audio_soc_data,
+ &glk_scc_soc_data,
+ NULL,
+};
+
+static const struct acpi_device_id glk_pinctrl_acpi_match[] = {
+ { "INT3453" },
+ { }
+};
+MODULE_DEVICE_TABLE(acpi, glk_pinctrl_acpi_match);
+
+static int glk_pinctrl_probe(struct platform_device *pdev)
+{
+ const struct intel_pinctrl_soc_data *soc_data = NULL;
+ struct acpi_device *adev;
+ int i;
+
+ adev = ACPI_COMPANION(&pdev->dev);
+ if (!adev)
+ return -ENODEV;
+
+ for (i = 0; glk_pinctrl_soc_data[i]; i++) {
+ if (!strcmp(adev->pnp.unique_id,
+ glk_pinctrl_soc_data[i]->uid)) {
+ soc_data = glk_pinctrl_soc_data[i];
+ break;
+ }
+ }
+
+ if (!soc_data)
+ return -ENODEV;
+
+ return intel_pinctrl_probe(pdev, soc_data);
+}
+
+static const struct dev_pm_ops glk_pinctrl_pm_ops = {
+ SET_LATE_SYSTEM_SLEEP_PM_OPS(intel_pinctrl_suspend,
+ intel_pinctrl_resume)
+};
+
+static struct platform_driver glk_pinctrl_driver = {
+ .probe = glk_pinctrl_probe,
+ .driver = {
+ .name = "geminilake-pinctrl",
+ .acpi_match_table = glk_pinctrl_acpi_match,
+ .pm = &glk_pinctrl_pm_ops,
+ },
+};
+
+static int __init glk_pinctrl_init(void)
+{
+ return platform_driver_register(&glk_pinctrl_driver);
+}
+subsys_initcall(glk_pinctrl_init);
+
+static void __exit glk_pinctrl_exit(void)
+{
+ platform_driver_unregister(&glk_pinctrl_driver);
+}
+module_exit(glk_pinctrl_exit);
+
+MODULE_AUTHOR("Mika Westerberg <mika.westerberg@linux.intel.com>");
+MODULE_DESCRIPTION("Intel Gemini Lake SoC pinctrl/GPIO driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/pinctrl/intel/pinctrl-intel.c b/drivers/pinctrl/intel/pinctrl-intel.c
index 1e139672f1af..592b465e981e 100644
--- a/drivers/pinctrl/intel/pinctrl-intel.c
+++ b/drivers/pinctrl/intel/pinctrl-intel.c
@@ -13,6 +13,7 @@
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/gpio/driver.h>
+#include <linux/log2.h>
#include <linux/platform_device.h>
#include <linux/pinctrl/pinctrl.h>
#include <linux/pinctrl/pinmux.h>
@@ -23,6 +24,10 @@
#include "pinctrl-intel.h"
/* Offset from regs */
+#define REVID 0x000
+#define REVID_SHIFT 16
+#define REVID_MASK GENMASK(31, 16)
+
#define PADBAR 0x00c
#define GPI_IS 0x100
#define GPI_GPE_STS 0x140
@@ -41,6 +46,7 @@
#define PADCFG0_RXEVCFG_EDGE 1
#define PADCFG0_RXEVCFG_DISABLED 2
#define PADCFG0_RXEVCFG_EDGE_BOTH 3
+#define PADCFG0_PREGFRXSEL BIT(24)
#define PADCFG0_RXINV BIT(23)
#define PADCFG0_GPIROUTIOXAPIC BIT(20)
#define PADCFG0_GPIROUTSCI BIT(19)
@@ -62,9 +68,17 @@
#define PADCFG1_TERM_5K 2
#define PADCFG1_TERM_1K 1
+#define PADCFG2 0x008
+#define PADCFG2_DEBEN BIT(0)
+#define PADCFG2_DEBOUNCE_SHIFT 1
+#define PADCFG2_DEBOUNCE_MASK GENMASK(4, 1)
+
+#define DEBOUNCE_PERIOD 31250 /* ns */
+
struct intel_pad_context {
u32 padcfg0;
u32 padcfg1;
+ u32 padcfg2;
};
struct intel_community_context {
@@ -126,13 +140,19 @@ static void __iomem *intel_get_padcfg(struct intel_pinctrl *pctrl, unsigned pin,
{
const struct intel_community *community;
unsigned padno;
+ size_t nregs;
community = intel_get_community(pctrl, pin);
if (!community)
return NULL;
padno = pin_to_padno(community, pin);
- return community->pad_regs + reg + padno * 8;
+ nregs = (community->features & PINCTRL_FEATURE_DEBOUNCE) ? 4 : 2;
+
+ if (reg == PADCFG2 && !(community->features & PINCTRL_FEATURE_DEBOUNCE))
+ return NULL;
+
+ return community->pad_regs + reg + padno * nregs * 4;
}
static bool intel_pad_owned_by_host(struct intel_pinctrl *pctrl, unsigned pin)
@@ -244,6 +264,7 @@ static void intel_pin_dbg_show(struct pinctrl_dev *pctldev, struct seq_file *s,
unsigned pin)
{
struct intel_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
+ void __iomem *padcfg;
u32 cfg0, cfg1, mode;
bool locked, acpi;
@@ -263,6 +284,11 @@ static void intel_pin_dbg_show(struct pinctrl_dev *pctldev, struct seq_file *s,
seq_printf(s, "0x%08x 0x%08x", cfg0, cfg1);
+ /* Dump the additional PADCFG registers if available */
+ padcfg = intel_get_padcfg(pctrl, pin, PADCFG2);
+ if (padcfg)
+ seq_printf(s, " 0x%08x", readl(padcfg));
+
locked = intel_pad_locked(pctrl, pin);
acpi = intel_pad_acpi_mode(pctrl, pin);
@@ -353,6 +379,21 @@ static int intel_pinmux_set_mux(struct pinctrl_dev *pctldev, unsigned function,
return 0;
}
+static void __intel_gpio_set_direction(void __iomem *padcfg0, bool input)
+{
+ u32 value;
+
+ value = readl(padcfg0);
+ if (input) {
+ value &= ~PADCFG0_GPIORXDIS;
+ value |= PADCFG0_GPIOTXDIS;
+ } else {
+ value &= ~PADCFG0_GPIOTXDIS;
+ value |= PADCFG0_GPIORXDIS;
+ }
+ writel(value, padcfg0);
+}
+
static int intel_gpio_request_enable(struct pinctrl_dev *pctldev,
struct pinctrl_gpio_range *range,
unsigned pin)
@@ -375,11 +416,11 @@ static int intel_gpio_request_enable(struct pinctrl_dev *pctldev,
/* Disable SCI/SMI/NMI generation */
value &= ~(PADCFG0_GPIROUTIOXAPIC | PADCFG0_GPIROUTSCI);
value &= ~(PADCFG0_GPIROUTSMI | PADCFG0_GPIROUTNMI);
- /* Disable TX buffer and enable RX (this will be input) */
- value &= ~PADCFG0_GPIORXDIS;
- value |= PADCFG0_GPIOTXDIS;
writel(value, padcfg0);
+ /* Disable TX buffer and enable RX (this will be input) */
+ __intel_gpio_set_direction(padcfg0, true);
+
raw_spin_unlock_irqrestore(&pctrl->lock, flags);
return 0;
@@ -392,18 +433,11 @@ static int intel_gpio_set_direction(struct pinctrl_dev *pctldev,
struct intel_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
void __iomem *padcfg0;
unsigned long flags;
- u32 value;
raw_spin_lock_irqsave(&pctrl->lock, flags);
padcfg0 = intel_get_padcfg(pctrl, pin, PADCFG0);
-
- value = readl(padcfg0);
- if (input)
- value |= PADCFG0_GPIOTXDIS;
- else
- value &= ~PADCFG0_GPIOTXDIS;
- writel(value, padcfg0);
+ __intel_gpio_set_direction(padcfg0, input);
raw_spin_unlock_irqrestore(&pctrl->lock, flags);
@@ -424,12 +458,14 @@ static int intel_config_get(struct pinctrl_dev *pctldev, unsigned pin,
{
struct intel_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
enum pin_config_param param = pinconf_to_config_param(*config);
+ const struct intel_community *community;
u32 value, term;
- u16 arg = 0;
+ u32 arg = 0;
if (!intel_pad_owned_by_host(pctrl, pin))
return -ENOTSUPP;
+ community = intel_get_community(pctrl, pin);
value = readl(intel_get_padcfg(pctrl, pin, PADCFG1));
term = (value & PADCFG1_TERM_MASK) >> PADCFG1_TERM_SHIFT;
@@ -465,6 +501,11 @@ static int intel_config_get(struct pinctrl_dev *pctldev, unsigned pin,
return -EINVAL;
switch (term) {
+ case PADCFG1_TERM_1K:
+ if (!(community->features & PINCTRL_FEATURE_1K_PD))
+ return -EINVAL;
+ arg = 1000;
+ break;
case PADCFG1_TERM_5K:
arg = 5000;
break;
@@ -475,6 +516,24 @@ static int intel_config_get(struct pinctrl_dev *pctldev, unsigned pin,
break;
+ case PIN_CONFIG_INPUT_DEBOUNCE: {
+ void __iomem *padcfg2;
+ u32 v;
+
+ padcfg2 = intel_get_padcfg(pctrl, pin, PADCFG2);
+ if (!padcfg2)
+ return -ENOTSUPP;
+
+ v = readl(padcfg2);
+ if (!(v & PADCFG2_DEBEN))
+ return -EINVAL;
+
+ v = (v & PADCFG2_DEBOUNCE_MASK) >> PADCFG2_DEBOUNCE_SHIFT;
+ arg = BIT(v) * DEBOUNCE_PERIOD / 1000;
+
+ break;
+ }
+
default:
return -ENOTSUPP;
}
@@ -488,6 +547,7 @@ static int intel_config_set_pull(struct intel_pinctrl *pctrl, unsigned pin,
{
unsigned param = pinconf_to_config_param(config);
unsigned arg = pinconf_to_config_argument(config);
+ const struct intel_community *community;
void __iomem *padcfg1;
unsigned long flags;
int ret = 0;
@@ -495,6 +555,7 @@ static int intel_config_set_pull(struct intel_pinctrl *pctrl, unsigned pin,
raw_spin_lock_irqsave(&pctrl->lock, flags);
+ community = intel_get_community(pctrl, pin);
padcfg1 = intel_get_padcfg(pctrl, pin, PADCFG1);
value = readl(padcfg1);
@@ -537,6 +598,13 @@ static int intel_config_set_pull(struct intel_pinctrl *pctrl, unsigned pin,
case 5000:
value |= PADCFG1_TERM_5K << PADCFG1_TERM_SHIFT;
break;
+ case 1000:
+ if (!(community->features & PINCTRL_FEATURE_1K_PD)) {
+ ret = -EINVAL;
+ break;
+ }
+ value |= PADCFG1_TERM_1K << PADCFG1_TERM_SHIFT;
+ break;
default:
ret = -EINVAL;
}
@@ -552,6 +620,53 @@ static int intel_config_set_pull(struct intel_pinctrl *pctrl, unsigned pin,
return ret;
}
+static int intel_config_set_debounce(struct intel_pinctrl *pctrl, unsigned pin,
+ unsigned debounce)
+{
+ void __iomem *padcfg0, *padcfg2;
+ unsigned long flags;
+ u32 value0, value2;
+ int ret = 0;
+
+ padcfg2 = intel_get_padcfg(pctrl, pin, PADCFG2);
+ if (!padcfg2)
+ return -ENOTSUPP;
+
+ padcfg0 = intel_get_padcfg(pctrl, pin, PADCFG0);
+
+ raw_spin_lock_irqsave(&pctrl->lock, flags);
+
+ value0 = readl(padcfg0);
+ value2 = readl(padcfg2);
+
+ /* Disable glitch filter and debouncer */
+ value0 &= ~PADCFG0_PREGFRXSEL;
+ value2 &= ~(PADCFG2_DEBEN | PADCFG2_DEBOUNCE_MASK);
+
+ if (debounce) {
+ unsigned long v;
+
+ v = order_base_2(debounce * 1000 / DEBOUNCE_PERIOD);
+ if (v < 3 || v > 15) {
+ ret = -EINVAL;
+ goto exit_unlock;
+ } else {
+ /* Enable glitch filter and debouncer */
+ value0 |= PADCFG0_PREGFRXSEL;
+ value2 |= v << PADCFG2_DEBOUNCE_SHIFT;
+ value2 |= PADCFG2_DEBEN;
+ }
+ }
+
+ writel(value0, padcfg0);
+ writel(value2, padcfg2);
+
+exit_unlock:
+ raw_spin_unlock_irqrestore(&pctrl->lock, flags);
+
+ return ret;
+}
+
static int intel_config_set(struct pinctrl_dev *pctldev, unsigned pin,
unsigned long *configs, unsigned nconfigs)
{
@@ -571,6 +686,13 @@ static int intel_config_set(struct pinctrl_dev *pctldev, unsigned pin,
return ret;
break;
+ case PIN_CONFIG_INPUT_DEBOUNCE:
+ ret = intel_config_set_debounce(pctrl, pin,
+ pinconf_to_config_argument(configs[i]));
+ if (ret)
+ return ret;
+ break;
+
default:
return -ENOTSUPP;
}
@@ -645,6 +767,7 @@ static const struct gpio_chip intel_gpio_chip = {
.direction_output = intel_gpio_direction_output,
.get = intel_gpio_get,
.set = intel_gpio_set,
+ .set_config = gpiochip_generic_config,
};
static void intel_gpio_irq_ack(struct irq_data *d)
@@ -884,7 +1007,7 @@ static int intel_gpio_probe(struct intel_pinctrl *pctrl, int irq)
pctrl->chip.base = -1;
pctrl->irq = irq;
- ret = gpiochip_add_data(&pctrl->chip, pctrl);
+ ret = devm_gpiochip_add_data(pctrl->dev, &pctrl->chip, pctrl);
if (ret) {
dev_err(pctrl->dev, "failed to register gpiochip\n");
return ret;
@@ -894,7 +1017,7 @@ static int intel_gpio_probe(struct intel_pinctrl *pctrl, int irq)
0, 0, pctrl->soc->npins);
if (ret) {
dev_err(pctrl->dev, "failed to add GPIO pin range\n");
- goto fail;
+ return ret;
}
/*
@@ -907,24 +1030,19 @@ static int intel_gpio_probe(struct intel_pinctrl *pctrl, int irq)
dev_name(pctrl->dev), pctrl);
if (ret) {
dev_err(pctrl->dev, "failed to request interrupt\n");
- goto fail;
+ return ret;
}
ret = gpiochip_irqchip_add(&pctrl->chip, &intel_gpio_irqchip, 0,
handle_bad_irq, IRQ_TYPE_NONE);
if (ret) {
dev_err(pctrl->dev, "failed to add irqchip\n");
- goto fail;
+ return ret;
}
gpiochip_set_chained_irqchip(&pctrl->chip, &intel_gpio_irqchip, irq,
NULL);
return 0;
-
-fail:
- gpiochip_remove(&pctrl->chip);
-
- return ret;
}
static int intel_pinctrl_pm_init(struct intel_pinctrl *pctrl)
@@ -1005,6 +1123,20 @@ int intel_pinctrl_probe(struct platform_device *pdev,
if (IS_ERR(regs))
return PTR_ERR(regs);
+ /*
+ * Determine community features based on the revision if
+ * not specified already.
+ */
+ if (!community->features) {
+ u32 rev;
+
+ rev = (readl(regs + REVID) & REVID_MASK) >> REVID_SHIFT;
+ if (rev >= 0x94) {
+ community->features |= PINCTRL_FEATURE_DEBOUNCE;
+ community->features |= PINCTRL_FEATURE_1K_PD;
+ }
+ }
+
/* Read offset of the pad configuration registers */
padbar = readl(regs + PADBAR);
@@ -1046,16 +1178,6 @@ int intel_pinctrl_probe(struct platform_device *pdev,
}
EXPORT_SYMBOL_GPL(intel_pinctrl_probe);
-int intel_pinctrl_remove(struct platform_device *pdev)
-{
- struct intel_pinctrl *pctrl = platform_get_drvdata(pdev);
-
- gpiochip_remove(&pctrl->chip);
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(intel_pinctrl_remove);
-
#ifdef CONFIG_PM_SLEEP
static bool intel_pinctrl_should_save(struct intel_pinctrl *pctrl, unsigned pin)
{
@@ -1088,6 +1210,7 @@ int intel_pinctrl_suspend(struct device *dev)
pads = pctrl->context.pads;
for (i = 0; i < pctrl->soc->npins; i++) {
const struct pinctrl_pin_desc *desc = &pctrl->soc->pins[i];
+ void __iomem *padcfg;
u32 val;
if (!intel_pinctrl_should_save(pctrl, desc->number))
@@ -1097,6 +1220,10 @@ int intel_pinctrl_suspend(struct device *dev)
pads[i].padcfg0 = val & ~PADCFG0_GPIORXSTATE;
val = readl(intel_get_padcfg(pctrl, desc->number, PADCFG1));
pads[i].padcfg1 = val;
+
+ padcfg = intel_get_padcfg(pctrl, desc->number, PADCFG2);
+ if (padcfg)
+ pads[i].padcfg2 = readl(padcfg);
}
communities = pctrl->context.communities;
@@ -1169,6 +1296,16 @@ int intel_pinctrl_resume(struct device *dev)
dev_dbg(dev, "restored pin %u padcfg1 %#08x\n",
desc->number, readl(padcfg));
}
+
+ padcfg = intel_get_padcfg(pctrl, desc->number, PADCFG2);
+ if (padcfg) {
+ val = readl(padcfg);
+ if (val != pads[i].padcfg2) {
+ writel(pads[i].padcfg2, padcfg);
+ dev_dbg(dev, "restored pin %u padcfg2 %#08x\n",
+ desc->number, readl(padcfg));
+ }
+ }
}
communities = pctrl->context.communities;
diff --git a/drivers/pinctrl/intel/pinctrl-intel.h b/drivers/pinctrl/intel/pinctrl-intel.h
index b60215793017..fe9521f345b5 100644
--- a/drivers/pinctrl/intel/pinctrl-intel.h
+++ b/drivers/pinctrl/intel/pinctrl-intel.h
@@ -58,6 +58,7 @@ struct intel_function {
* @gpp_size: Maximum number of pads in each group, such as PADCFGLOCK,
* HOSTSW_OWN, GPI_IS, GPI_IE, etc.
* @npins: Number of pins in this community
+ * @features: Additional features supported by the hardware
* @regs: Community specific common registers (reserved for core driver)
* @pad_regs: Community specific pad registers (reserved for core driver)
* @ngpps: Number of groups (hw groups) in this community (reserved for
@@ -72,11 +73,16 @@ struct intel_community {
unsigned pin_base;
unsigned gpp_size;
size_t npins;
+ unsigned features;
void __iomem *regs;
void __iomem *pad_regs;
size_t ngpps;
};
+/* Additional features supported by the hardware */
+#define PINCTRL_FEATURE_DEBOUNCE BIT(0)
+#define PINCTRL_FEATURE_1K_PD BIT(1)
+
#define PIN_GROUP(n, p, m) \
{ \
.name = (n), \
@@ -121,8 +127,6 @@ struct intel_pinctrl_soc_data {
int intel_pinctrl_probe(struct platform_device *pdev,
const struct intel_pinctrl_soc_data *soc_data);
-int intel_pinctrl_remove(struct platform_device *pdev);
-
#ifdef CONFIG_PM_SLEEP
int intel_pinctrl_suspend(struct device *dev);
int intel_pinctrl_resume(struct device *dev);
diff --git a/drivers/pinctrl/intel/pinctrl-merrifield.c b/drivers/pinctrl/intel/pinctrl-merrifield.c
index b21896126f76..4d4ef42a39b5 100644
--- a/drivers/pinctrl/intel/pinctrl-merrifield.c
+++ b/drivers/pinctrl/intel/pinctrl-merrifield.c
@@ -794,6 +794,9 @@ static int mrfld_config_set(struct pinctrl_dev *pctldev, unsigned int pin,
unsigned int i;
int ret;
+ if (!mrfld_buf_available(mp, pin))
+ return -ENOTSUPP;
+
for (i = 0; i < nconfigs; i++) {
switch (pinconf_to_config_param(configs[i])) {
case PIN_CONFIG_BIAS_DISABLE:
diff --git a/drivers/pinctrl/intel/pinctrl-sunrisepoint.c b/drivers/pinctrl/intel/pinctrl-sunrisepoint.c
index c725a5313b4e..9877526c0807 100644
--- a/drivers/pinctrl/intel/pinctrl-sunrisepoint.c
+++ b/drivers/pinctrl/intel/pinctrl-sunrisepoint.c
@@ -574,7 +574,6 @@ static const struct dev_pm_ops spt_pinctrl_pm_ops = {
static struct platform_driver spt_pinctrl_driver = {
.probe = spt_pinctrl_probe,
- .remove = intel_pinctrl_remove,
.driver = {
.name = "sunrisepoint-pinctrl",
.acpi_match_table = spt_pinctrl_acpi_match,
generated by cgit v1.2.3 (git 2.39.0) at 2025-01-25 02:22:16 +0300