From: Andy Shevchenko Date: Wed, 10 Jul 2013 11:55:40 +0000 (+0300) Subject: pinctrl-baytrail: fix to avoid sparse warnings X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=496940c10278599528cfbde0e05208bf4ef0c7c0;p=linux-beck.git pinctrl-baytrail: fix to avoid sparse warnings There are couple of sparse warnings we could avoid if we use a bit verbose version of the code in byt_gpio_direction_output(). drivers/pinctrl/pinctrl-baytrail.c:266:45: warning: dubious: x | !y drivers/pinctrl/pinctrl-baytrail.c:267:36: warning: dubious: x | !y Additionally simplify a bit the code in byt_gpio_direction_input(). Signed-off-by: Andy Shevchenko Reviewed-by: Mika Westerberg Signed-off-by: Linus Walleij --- diff --git a/drivers/pinctrl/pinctrl-baytrail.c b/drivers/pinctrl/pinctrl-baytrail.c index 3bf7c948b7fc..2832576d8b12 100644 --- a/drivers/pinctrl/pinctrl-baytrail.c +++ b/drivers/pinctrl/pinctrl-baytrail.c @@ -245,7 +245,7 @@ static int byt_gpio_direction_input(struct gpio_chip *chip, unsigned offset) spin_lock_irqsave(&vg->lock, flags); value = readl(reg) | BYT_DIR_MASK; - value = value & (~BYT_INPUT_EN); /* active low */ + value &= ~BYT_INPUT_EN; /* active low */ writel(value, reg); spin_unlock_irqrestore(&vg->lock, flags); @@ -263,9 +263,13 @@ static int byt_gpio_direction_output(struct gpio_chip *chip, spin_lock_irqsave(&vg->lock, flags); - reg_val = readl(reg) | (BYT_DIR_MASK | !!value); - reg_val &= ~(BYT_OUTPUT_EN | !value); - writel(reg_val, reg); + reg_val = readl(reg) | BYT_DIR_MASK; + reg_val &= ~BYT_OUTPUT_EN; + + if (value) + writel(reg_val | BYT_LEVEL, reg); + else + writel(reg_val & ~BYT_LEVEL, reg); spin_unlock_irqrestore(&vg->lock, flags);