From 58957d2edfa19e9b8f80385ba042495058e5e60e Mon Sep 17 00:00:00 2001 From: Mika Westerberg Date: Mon, 23 Jan 2017 15:34:32 +0300 Subject: pinctrl: Widen the generic pinconf argument from 16 to 24 bits The current pinconf packed format allows only 16-bit argument limiting the maximum value 65535. For most types this is enough. However, debounce time can be in range of hundreths of milliseconds in case of mechanical switches so we cannot represent the worst case using the current format. In order to support larger values change the packed format so that the lower 8 bits are used as type which leaves 24 bits for the argument. This allows representing values up to 16777215 and debounce times up to 16 seconds. We also convert the existing users to use 32-bit integer when extracting argument from the packed configuration value. Signed-off-by: Mika Westerberg Reviewed-by: Andy Shevchenko Signed-off-by: Linus Walleij --- drivers/pinctrl/sunxi/pinctrl-sunxi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/pinctrl/sunxi') diff --git a/drivers/pinctrl/sunxi/pinctrl-sunxi.c b/drivers/pinctrl/sunxi/pinctrl-sunxi.c index 0eb51e33cb1b..28bfa5f413e4 100644 --- a/drivers/pinctrl/sunxi/pinctrl-sunxi.c +++ b/drivers/pinctrl/sunxi/pinctrl-sunxi.c @@ -540,7 +540,7 @@ static int sunxi_pconf_group_set(struct pinctrl_dev *pctldev, enum pin_config_param param; unsigned long flags; u32 offset, shift, mask, reg; - u16 arg, val; + u32 arg, val; int ret; param = pinconf_to_config_param(configs[i]); -- cgit v1.2.3