diff options
| author |   Mika Westerberg <mika.westerberg@linux.intel.com> | 2017-01-23 15:34:32 +0300 |
|---|---|---|
| committer |   Linus Walleij <linus.walleij@linaro.org> | 2017-01-26 15:22:32 +0100 |
| commit | 58957d2edfa19e9b8f80385ba042495058e5e60e (patch) | |
| tree | ac6041e8fe09315cba840d6e65fe1ca97effba14 /drivers/pinctrl/bcm/pinctrl-ns2-mux.c | |
| parent | Linux 4.10-rc1 (diff) | |
| download | linux-dev-58957d2edfa19e9b8f80385ba042495058e5e60e.tar.xz linux-dev-58957d2edfa19e9b8f80385ba042495058e5e60e.zip | |
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 <mika.westerberg@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/bcm/pinctrl-ns2-mux.c')
| -rw-r--r-- | drivers/pinctrl/bcm/pinctrl-ns2-mux.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/pinctrl/bcm/pinctrl-ns2-mux.c b/drivers/pinctrl/bcm/pinctrl-ns2-mux.c index 13a4c2774157..4b5cf0e0f16e 100644 --- a/drivers/pinctrl/bcm/pinctrl-ns2-mux.c +++ b/drivers/pinctrl/bcm/pinctrl-ns2-mux.c @@ -703,7 +703,7 @@ static int ns2_pin_get_enable(struct pinctrl_dev *pctrldev, unsigned int pin) } static int ns2_pin_set_slew(struct pinctrl_dev *pctrldev, unsigned int pin, - u16 slew) + u32 slew) { struct ns2_pinctrl *pinctrl = pinctrl_dev_get_drvdata(pctrldev); struct ns2_pin *pin_data = pctrldev->desc->pins[pin].drv_data; @@ -793,7 +793,7 @@ static void ns2_pin_get_pull(struct pinctrl_dev *pctrldev, } static int ns2_pin_set_strength(struct pinctrl_dev *pctrldev, unsigned int pin, - u16 strength) + u32 strength) { struct ns2_pinctrl *pinctrl = pinctrl_dev_get_drvdata(pctrldev); struct ns2_pin *pin_data = pctrldev->desc->pins[pin].drv_data; @@ -904,7 +904,7 @@ static int ns2_pin_config_set(struct pinctrl_dev *pctrldev, unsigned int pin, struct ns2_pin *pin_data = pctrldev->desc->pins[pin].drv_data; enum pin_config_param param; unsigned int i; - u16 arg; + u32 arg; int ret = -ENOTSUPP; if (pin_data->pin_conf.base == -1) |