diff options
Diffstat (limited to 'drivers/pinctrl/intel')
| -rw-r--r-- | drivers/pinctrl/intel/pinctrl-baytrail.c | 6 | ||||
| -rw-r--r-- | drivers/pinctrl/intel/pinctrl-cherryview.c | 4 | ||||
| -rw-r--r-- | drivers/pinctrl/intel/pinctrl-intel.c | 18 | ||||
| -rw-r--r-- | drivers/pinctrl/intel/pinctrl-lynxpoint.c | 4 |
4 files changed, 23 insertions, 9 deletions
diff --git a/drivers/pinctrl/intel/pinctrl-baytrail.c b/drivers/pinctrl/intel/pinctrl-baytrail.c index 969137c4cb06..5fd107a00ef8 100644 --- a/drivers/pinctrl/intel/pinctrl-baytrail.c +++ b/drivers/pinctrl/intel/pinctrl-baytrail.c @@ -1045,7 +1045,7 @@ static int byt_gpio_get(struct gpio_chip *chip, unsigned int offset) return !!(val & BYT_LEVEL); } -static void byt_gpio_set(struct gpio_chip *chip, unsigned int offset, int value) +static int byt_gpio_set(struct gpio_chip *chip, unsigned int offset, int value) { struct intel_pinctrl *vg = gpiochip_get_data(chip); void __iomem *reg; @@ -1053,7 +1053,7 @@ static void byt_gpio_set(struct gpio_chip *chip, unsigned int offset, int value) reg = byt_gpio_reg(vg, offset, BYT_VAL_REG); if (!reg) - return; + return -EINVAL; guard(raw_spinlock_irqsave)(&byt_lock); @@ -1062,6 +1062,8 @@ static void byt_gpio_set(struct gpio_chip *chip, unsigned int offset, int value) writel(old_val | BYT_LEVEL, reg); else writel(old_val & ~BYT_LEVEL, reg); + + return 0; } static int byt_gpio_get_direction(struct gpio_chip *chip, unsigned int offset) diff --git a/drivers/pinctrl/intel/pinctrl-cherryview.c b/drivers/pinctrl/intel/pinctrl-cherryview.c index 69b18ce0f685..f81f7929cd3b 100644 --- a/drivers/pinctrl/intel/pinctrl-cherryview.c +++ b/drivers/pinctrl/intel/pinctrl-cherryview.c @@ -1112,7 +1112,7 @@ static int chv_gpio_get(struct gpio_chip *chip, unsigned int offset) return !!(ctrl0 & CHV_PADCTRL0_GPIORXSTATE); } -static void chv_gpio_set(struct gpio_chip *chip, unsigned int offset, int value) +static int chv_gpio_set(struct gpio_chip *chip, unsigned int offset, int value) { struct intel_pinctrl *pctrl = gpiochip_get_data(chip); u32 ctrl0; @@ -1127,6 +1127,8 @@ static void chv_gpio_set(struct gpio_chip *chip, unsigned int offset, int value) ctrl0 &= ~CHV_PADCTRL0_GPIOTXSTATE; chv_writel(pctrl, offset, CHV_PADCTRL0, ctrl0); + + return 0; } static int chv_gpio_get_direction(struct gpio_chip *chip, unsigned int offset) diff --git a/drivers/pinctrl/intel/pinctrl-intel.c b/drivers/pinctrl/intel/pinctrl-intel.c index d889c7c878e2..d68cef4ec52a 100644 --- a/drivers/pinctrl/intel/pinctrl-intel.c +++ b/drivers/pinctrl/intel/pinctrl-intel.c @@ -9,6 +9,7 @@ #include <linux/acpi.h> #include <linux/cleanup.h> +#include <linux/export.h> #include <linux/gpio/driver.h> #include <linux/interrupt.h> #include <linux/log2.h> @@ -1033,8 +1034,8 @@ static int intel_gpio_get(struct gpio_chip *chip, unsigned int offset) return !!(padcfg0 & PADCFG0_GPIORXSTATE); } -static void intel_gpio_set(struct gpio_chip *chip, unsigned int offset, - int value) +static int intel_gpio_set(struct gpio_chip *chip, unsigned int offset, + int value) { struct intel_pinctrl *pctrl = gpiochip_get_data(chip); void __iomem *reg; @@ -1043,11 +1044,11 @@ static void intel_gpio_set(struct gpio_chip *chip, unsigned int offset, pin = intel_gpio_to_pin(pctrl, offset, NULL, NULL); if (pin < 0) - return; + return -EINVAL; reg = intel_get_padcfg(pctrl, pin, PADCFG0); if (!reg) - return; + return -EINVAL; guard(raw_spinlock_irqsave)(&pctrl->lock); @@ -1057,6 +1058,8 @@ static void intel_gpio_set(struct gpio_chip *chip, unsigned int offset, else padcfg0 &= ~PADCFG0_GPIOTXSTATE; writel(padcfg0, reg); + + return 0; } static int intel_gpio_get_direction(struct gpio_chip *chip, unsigned int offset) @@ -1094,7 +1097,12 @@ static int intel_gpio_direction_input(struct gpio_chip *chip, unsigned int offse static int intel_gpio_direction_output(struct gpio_chip *chip, unsigned int offset, int value) { - intel_gpio_set(chip, offset, value); + int ret; + + ret = intel_gpio_set(chip, offset, value); + if (ret) + return ret; + return pinctrl_gpio_direction_output(chip, offset); } diff --git a/drivers/pinctrl/intel/pinctrl-lynxpoint.c b/drivers/pinctrl/intel/pinctrl-lynxpoint.c index ac5459a4c63e..3fb628309fb2 100644 --- a/drivers/pinctrl/intel/pinctrl-lynxpoint.c +++ b/drivers/pinctrl/intel/pinctrl-lynxpoint.c @@ -503,7 +503,7 @@ static int lp_gpio_get(struct gpio_chip *chip, unsigned int offset) return !!(ioread32(reg) & IN_LVL_BIT); } -static void lp_gpio_set(struct gpio_chip *chip, unsigned int offset, int value) +static int lp_gpio_set(struct gpio_chip *chip, unsigned int offset, int value) { struct intel_pinctrl *lg = gpiochip_get_data(chip); void __iomem *reg = lp_gpio_reg(chip, offset, LP_CONFIG1); @@ -514,6 +514,8 @@ static void lp_gpio_set(struct gpio_chip *chip, unsigned int offset, int value) iowrite32(ioread32(reg) | OUT_LVL_BIT, reg); else iowrite32(ioread32(reg) & ~OUT_LVL_BIT, reg); + + return 0; } static int lp_gpio_direction_input(struct gpio_chip *chip, unsigned int offset) |