diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2020-06-15 17:30:15 +0300 |
|---|---|---|
| committer | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2020-06-22 11:01:59 +0300 |
| commit | 0472567ba86469eb9faabc917f4c3084c08cf0c2 (patch) | |
| tree | 35e8da68a269cb94e81c76bfb553d20f73cdb467 /drivers/pinctrl/intel | |
| parent | f3e7d2812247342c415c76ba75fd79df57ee2a74 (diff) | |
| download | linux-0472567ba86469eb9faabc917f4c3084c08cf0c2.tar.xz | |
pinctrl: lynxpoint: Introduce helpers to enable or disable input
Introduce couple of helpers to enable or disable input. i.e.
lp_gpio_enable_input() and lp_gpio_disable_input().
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Diffstat (limited to 'drivers/pinctrl/intel')
| -rw-r--r-- | drivers/pinctrl/intel/pinctrl-lynxpoint.c | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/drivers/pinctrl/intel/pinctrl-lynxpoint.c b/drivers/pinctrl/intel/pinctrl-lynxpoint.c index 2a3af998b91c..003d795528e8 100644 --- a/drivers/pinctrl/intel/pinctrl-lynxpoint.c +++ b/drivers/pinctrl/intel/pinctrl-lynxpoint.c @@ -386,6 +386,16 @@ static int lp_pinmux_set_mux(struct pinctrl_dev *pctldev, return 0; } +static void lp_gpio_enable_input(void __iomem *reg) +{ + iowrite32(ioread32(reg) & ~GPINDIS_BIT, reg); +} + +static void lp_gpio_disable_input(void __iomem *reg) +{ + iowrite32(ioread32(reg) | GPINDIS_BIT, reg); +} + static int lp_gpio_request_enable(struct pinctrl_dev *pctldev, struct pinctrl_gpio_range *range, unsigned int pin) @@ -411,7 +421,7 @@ static int lp_gpio_request_enable(struct pinctrl_dev *pctldev, } /* Enable input sensing */ - iowrite32(ioread32(conf2) & ~GPINDIS_BIT, conf2); + lp_gpio_enable_input(conf2); raw_spin_unlock_irqrestore(&lg->lock, flags); @@ -429,7 +439,7 @@ static void lp_gpio_disable_free(struct pinctrl_dev *pctldev, raw_spin_lock_irqsave(&lg->lock, flags); /* Disable input sensing */ - iowrite32(ioread32(conf2) | GPINDIS_BIT, conf2); + lp_gpio_disable_input(conf2); raw_spin_unlock_irqrestore(&lg->lock, flags); @@ -921,14 +931,11 @@ static int lp_gpio_resume(struct device *dev) struct intel_pinctrl *lg = dev_get_drvdata(dev); struct gpio_chip *chip = &lg->chip; const char *dummy; - void __iomem *reg; int i; /* on some hardware suspend clears input sensing, re-enable it here */ - for_each_requested_gpio(chip, i, dummy) { - reg = lp_gpio_reg(chip, i, LP_CONFIG2); - iowrite32(ioread32(reg) & ~GPINDIS_BIT, reg); - } + for_each_requested_gpio(chip, i, dummy) + lp_gpio_enable_input(lp_gpio_reg(chip, i, LP_CONFIG2)); return 0; } |