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pinctrl: moorefield: Fix open-drain pin mode configuration

PATCH In review Andy Shevchenko 3 participants 6 messages Jun 5, 2023 – Jun 6, 2023

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#0 lore raw

PATCH 1/2 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.

---
 drivers/pinctrl/intel/pinctrl-moorefield.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)
drivers/pinctrl/intel/pinctrl-moorefield.c +12 -2
index 3c9a8484b442..7656a5e20919 100644
@@ -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]);
Signature · 1 line
2.40.0.1.gaa8946217a0b
#1 lore raw

PATCH 2/2 pinctrl: moorefield: Use BUFCFG_PINMODE_GPIO in ->pin_dbg_show()

Use explicit comparison to BUFCFG_PINMODE_GPIO instead of implying it.

---
 drivers/pinctrl/intel/pinctrl-moorefield.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
drivers/pinctrl/intel/pinctrl-moorefield.c +1 -1
index 7656a5e20919..2d38d953f360 100644
@@ -504,7 +504,7 @@ static void mofld_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);
Signature · 1 line
2.40.0.1.gaa8946217a0b
maintainer Acked-by on v1 1/2
#3 lore raw
In reply to Andy Shevchenko
Quoted 7 lines · 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.

BTW, looking at the two drivers they seem to have a lot of commonalities. Perhaps it makes sense to consolidate?

#4 lore raw

Tue, Jun 06, 2023 at 08:15:47AM +0300, Mika Westerberg kirjoitti:

Quoted 10 lines · Andy Shevchenko
Quoted 7 lines

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.

Thank you!

Quoted 2 lines

BTW, looking at the two drivers they seem to have a lot of commonalities. Perhaps it makes sense to consolidate?

Yes, that's the plan, perhaps for the next cycle.

Signature · 2 lines
With Best Regards,
Andy Shevchenko
#5 lore raw
In reply to Mika Westerberg
Quoted 10 lines · Mika Westerberg
Quoted 7 lines · 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.

Both pushed to my review and testing queue, thanks!

Signature · 2 lines
With Best Regards,
Andy Shevchenko