[PATCH v1 1/2] pinctrl: merrifield: Fix open-drain pin mode configuration

[PATCH v1 1/2] pinctrl: merrifield: Fix open-drain pin mode configuration

[Andy Shevchenko]

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.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/pinctrl/intel/pinctrl-merrifield.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/drivers/pinctrl/intel/pinctrl-merrifield.c b/drivers/pinctrl/intel/pinctrl-merrifield.c
index 365c391c97a3..f1d0b7576703 100644
--- a/drivers/pinctrl/intel/pinctrl-merrifield.c
+++ b/drivers/pinctrl/intel/pinctrl-merrifield.c
@@ -710,6 +710,11 @@ static int mrfld_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;
@@ -791,10 +796,14 @@ static int mrfld_config_set_pin(struct mrfld_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:
@@ -826,6 +835,7 @@ static int mrfld_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 = mrfld_config_set_pin(mp, pin, configs[i]);
-- 
2.40.0.1.gaa8946217a0b

[PATCH v1 2/2] pinctrl: merrifield: Use BUFCFG_PINMODE_GPIO in ->pin_dbg_show()

[Andy Shevchenko]

Use explicit comparison to BUFCFG_PINMODE_GPIO instead of implying it.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/pinctrl/intel/pinctrl-merrifield.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pinctrl/intel/pinctrl-merrifield.c b/drivers/pinctrl/intel/pinctrl-merrifield.c
index f1d0b7576703..fb6de38b1c50 100644
--- a/drivers/pinctrl/intel/pinctrl-merrifield.c
+++ b/drivers/pinctrl/intel/pinctrl-merrifield.c
@@ -549,7 +549,7 @@ static void mrfld_pin_dbg_show(struct pinctrl_dev *pctldev, struct seq_file *s,
 	}
 
 	mode = (value & BUFCFG_PINMODE_MASK) >> BUFCFG_PINMODE_SHIFT;
-	if (!mode)
+	if (mode == BUFCFG_PINMODE_GPIO)
 		seq_puts(s, "GPIO ");
 	else
 		seq_printf(s, "mode %d ", mode);
-- 
2.40.0.1.gaa8946217a0b

Re: [PATCH v1 1/2] pinctrl: merrifield: Fix open-drain pin mode configuration

[Mika Westerberg]

On Mon, Jun 05, 2023 at 06:45:08PM +0300, Andy Shevchenko wrote:
> 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.
> 
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>

Re: [PATCH v1 2/2] pinctrl: merrifield: Use BUFCFG_PINMODE_GPIO in ->pin_dbg_show()

[Mika Westerberg]

On Mon, Jun 05, 2023 at 06:45:09PM +0300, Andy Shevchenko wrote:
> Use explicit comparison to BUFCFG_PINMODE_GPIO instead of implying it.
> 
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>

Re: [PATCH v1 1/2] pinctrl: merrifield: Fix open-drain pin mode configuration

[Andy Shevchenko]

On Tue, Jun 06, 2023 at 08:12:10AM +0300, Mika Westerberg wrote:
> On Mon, Jun 05, 2023 at 06:45:08PM +0300, Andy Shevchenko wrote:
> > 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.
> > 
> > Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> 
> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>

Both pushed to my review and testing queue, thanks!

-- 
With Best Regards,
Andy Shevchenko