diff mbox series

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

Message ID 20230605154509.11616-1-andriy.shevchenko@linux.intel.com
State Accepted
Commit 9891422ba6777272e2638c5fbae6800cc23baf4e
Headers show
Series [v1,1/2] pinctrl: merrifield: Fix open-drain pin mode configuration | expand

Commit Message

Andy Shevchenko June 5, 2023, 3:45 p.m. UTC 
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(-)

Comments

Mika Westerberg June 6, 2023, 5:12 a.m. UTC | #1 
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>
diff mbox series

Patch

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]);