diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/pinctrl/stm32/pinctrl-stm32.c | 44 |
1 files changed, 24 insertions, 20 deletions
diff --git a/drivers/pinctrl/stm32/pinctrl-stm32.c b/drivers/pinctrl/stm32/pinctrl-stm32.c index f6279c8646ca..0b9ff5aa6bb5 100644 --- a/drivers/pinctrl/stm32/pinctrl-stm32.c +++ b/drivers/pinctrl/stm32/pinctrl-stm32.c @@ -583,8 +583,8 @@ static int stm32_pmx_get_func_groups(struct pinctrl_dev *pctldev, return 0; } -static void stm32_pmx_set_mode(struct stm32_gpio_bank *bank, - int pin, u32 mode, u32 alt) +static int stm32_pmx_set_mode(struct stm32_gpio_bank *bank, + int pin, u32 mode, u32 alt) { struct stm32_pinctrl *pctl = dev_get_drvdata(bank->gpio_chip.parent); u32 val; @@ -620,6 +620,8 @@ static void stm32_pmx_set_mode(struct stm32_gpio_bank *bank, unlock: spin_unlock_irqrestore(&bank->lock, flags); clk_disable(bank->clk); + + return err; } void stm32_pmx_get_mode(struct stm32_gpio_bank *bank, int pin, u32 *mode, @@ -676,9 +678,7 @@ static int stm32_pmx_set_mux(struct pinctrl_dev *pctldev, mode = stm32_gpio_get_mode(function); alt = stm32_gpio_get_alt(function); - stm32_pmx_set_mode(bank, pin, mode, alt); - - return 0; + return stm32_pmx_set_mode(bank, pin, mode, alt); } static int stm32_pmx_gpio_set_direction(struct pinctrl_dev *pctldev, @@ -688,9 +688,7 @@ static int stm32_pmx_gpio_set_direction(struct pinctrl_dev *pctldev, struct stm32_gpio_bank *bank = gpiochip_get_data(range->gc); int pin = stm32_gpio_pin(gpio); - stm32_pmx_set_mode(bank, pin, !input, 0); - - return 0; + return stm32_pmx_set_mode(bank, pin, !input, 0); } static const struct pinmux_ops stm32_pmx_ops = { @@ -704,8 +702,8 @@ static const struct pinmux_ops stm32_pmx_ops = { /* Pinconf functions */ -static void stm32_pconf_set_driving(struct stm32_gpio_bank *bank, - unsigned offset, u32 drive) +static int stm32_pconf_set_driving(struct stm32_gpio_bank *bank, + unsigned offset, u32 drive) { struct stm32_pinctrl *pctl = dev_get_drvdata(bank->gpio_chip.parent); unsigned long flags; @@ -734,6 +732,8 @@ static void stm32_pconf_set_driving(struct stm32_gpio_bank *bank, unlock: spin_unlock_irqrestore(&bank->lock, flags); clk_disable(bank->clk); + + return err; } static u32 stm32_pconf_get_driving(struct stm32_gpio_bank *bank, @@ -754,8 +754,8 @@ static u32 stm32_pconf_get_driving(struct stm32_gpio_bank *bank, return (val >> offset); } -static void stm32_pconf_set_speed(struct stm32_gpio_bank *bank, - unsigned offset, u32 speed) +static int stm32_pconf_set_speed(struct stm32_gpio_bank *bank, + unsigned offset, u32 speed) { struct stm32_pinctrl *pctl = dev_get_drvdata(bank->gpio_chip.parent); unsigned long flags; @@ -784,6 +784,8 @@ static void stm32_pconf_set_speed(struct stm32_gpio_bank *bank, unlock: spin_unlock_irqrestore(&bank->lock, flags); clk_disable(bank->clk); + + return err; } static u32 stm32_pconf_get_speed(struct stm32_gpio_bank *bank, @@ -804,8 +806,8 @@ static u32 stm32_pconf_get_speed(struct stm32_gpio_bank *bank, return (val >> (offset * 2)); } -static void stm32_pconf_set_bias(struct stm32_gpio_bank *bank, - unsigned offset, u32 bias) +static int stm32_pconf_set_bias(struct stm32_gpio_bank *bank, + unsigned offset, u32 bias) { struct stm32_pinctrl *pctl = dev_get_drvdata(bank->gpio_chip.parent); unsigned long flags; @@ -834,6 +836,8 @@ static void stm32_pconf_set_bias(struct stm32_gpio_bank *bank, unlock: spin_unlock_irqrestore(&bank->lock, flags); clk_disable(bank->clk); + + return err; } static u32 stm32_pconf_get_bias(struct stm32_gpio_bank *bank, @@ -896,22 +900,22 @@ static int stm32_pconf_parse_conf(struct pinctrl_dev *pctldev, switch (param) { case PIN_CONFIG_DRIVE_PUSH_PULL: - stm32_pconf_set_driving(bank, offset, 0); + ret = stm32_pconf_set_driving(bank, offset, 0); break; case PIN_CONFIG_DRIVE_OPEN_DRAIN: - stm32_pconf_set_driving(bank, offset, 1); + ret = stm32_pconf_set_driving(bank, offset, 1); break; case PIN_CONFIG_SLEW_RATE: - stm32_pconf_set_speed(bank, offset, arg); + ret = stm32_pconf_set_speed(bank, offset, arg); break; case PIN_CONFIG_BIAS_DISABLE: - stm32_pconf_set_bias(bank, offset, 0); + ret = stm32_pconf_set_bias(bank, offset, 0); break; case PIN_CONFIG_BIAS_PULL_UP: - stm32_pconf_set_bias(bank, offset, 1); + ret = stm32_pconf_set_bias(bank, offset, 1); break; case PIN_CONFIG_BIAS_PULL_DOWN: - stm32_pconf_set_bias(bank, offset, 2); + ret = stm32_pconf_set_bias(bank, offset, 2); break; case PIN_CONFIG_OUTPUT: __stm32_gpio_set(bank, offset, arg); |