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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2023-06-05 18:45:22 +0300 |
|---|---|---|
| committer | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2023-06-06 16:08:20 +0300 |
| commit | be5bb8f08205b5af9c44dccc9567584f572e2264 (patch) | |
| tree | 19837830db2028dca97b2147d4311f4595c8935d /drivers/pinctrl | |
| parent | 29cf9f36215c350a1990f68f1798fc826e4ef00b (diff) | |
| download | linux-rpi-be5bb8f08205b5af9c44dccc9567584f572e2264.tar.gz linux-rpi-be5bb8f08205b5af9c44dccc9567584f572e2264.tar.bz2 linux-rpi-be5bb8f08205b5af9c44dccc9567584f572e2264.zip | |
pinctrl: moorefield: Fix open-drain pin mode configuration
Currently the pin may not be configured as open-drain in some
cases because the argument may be 0 for the boolean types of
the pin configurations. Fix this by ignoring the argument.
With that, allow to actually restore pin to the push-pull mode.
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Diffstat (limited to 'drivers/pinctrl')
| -rw-r--r-- | drivers/pinctrl/intel/pinctrl-moorefield.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/pinctrl/intel/pinctrl-moorefield.c b/drivers/pinctrl/intel/pinctrl-moorefield.c index 3c9a8484b442..7656a5e20919 100644 --- a/drivers/pinctrl/intel/pinctrl-moorefield.c +++ b/drivers/pinctrl/intel/pinctrl-moorefield.c @@ -661,6 +661,11 @@ static int mofld_config_get(struct pinctrl_dev *pctldev, unsigned int pin, break; + case PIN_CONFIG_DRIVE_PUSH_PULL: + if (value & BUFCFG_OD_EN) + return -EINVAL; + break; + case PIN_CONFIG_DRIVE_OPEN_DRAIN: if (!(value & BUFCFG_OD_EN)) return -EINVAL; @@ -734,10 +739,14 @@ static int mofld_config_set_pin(struct mofld_pinctrl *mp, unsigned int pin, break; + case PIN_CONFIG_DRIVE_PUSH_PULL: + mask |= BUFCFG_OD_EN; + bits &= ~BUFCFG_OD_EN; + break; + case PIN_CONFIG_DRIVE_OPEN_DRAIN: mask |= BUFCFG_OD_EN; - if (arg) - bits |= BUFCFG_OD_EN; + bits |= BUFCFG_OD_EN; break; case PIN_CONFIG_SLEW_RATE: @@ -769,6 +778,7 @@ static int mofld_config_set(struct pinctrl_dev *pctldev, unsigned int pin, case PIN_CONFIG_BIAS_DISABLE: case PIN_CONFIG_BIAS_PULL_UP: case PIN_CONFIG_BIAS_PULL_DOWN: + case PIN_CONFIG_DRIVE_PUSH_PULL: case PIN_CONFIG_DRIVE_OPEN_DRAIN: case PIN_CONFIG_SLEW_RATE: ret = mofld_config_set_pin(mp, pin, configs[i]); |