From: Patrick Delaunay <patrick.delaunay@foss.st.com>
Date: Thu, 21 Jan 2021 16:39:07 +0000 (+0100)
Subject: pinctrl: stm32: correct management pin display of OTYPE
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=1da426919dedc2ece25e05f5d8ca131142c7348c;p=u-boot.git

pinctrl: stm32: correct management pin display of OTYPE

OTYPE can be used for output or for alternate function to select
PP = push-pull or OP = open-drain mode, according reference manual
(Table 81. Port bit configuration table).

This patch removes this indication for input pins and adds it
for AF and output pins for pinmux command output.

Fixes: b305dbc08b08 ("pinctrl: stm32: display bias information for all pins")

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
---

diff --git a/drivers/pinctrl/pinctrl_stm32.c b/drivers/pinctrl/pinctrl_stm32.c
index a1f53a793b..374f76d881 100644
--- a/drivers/pinctrl/pinctrl_stm32.c
+++ b/drivers/pinctrl/pinctrl_stm32.c
@@ -56,7 +56,7 @@ static const char * const pinmux_bias[] = {
 	[STM32_GPIO_PUPD_DOWN] = "pull-down",
 };
 
-static const char * const pinmux_input[] = {
+static const char * const pinmux_otype[] = {
 	[STM32_GPIO_OTYPE_PP] = "push-pull",
 	[STM32_GPIO_OTYPE_OD] = "open-drain",
 };
@@ -216,7 +216,7 @@ static int stm32_pinctrl_get_pin_muxing(struct udevice *dev,
 		selector, gpio_idx, mode);
 	priv = dev_get_priv(gpio_dev);
 	pupd = (readl(&priv->regs->pupdr) >> (gpio_idx * 2)) & PUPD_MASK;
-
+	otype = (readl(&priv->regs->otyper) >> gpio_idx) & OTYPE_MSK;
 
 	switch (mode) {
 	case GPIOF_UNKNOWN:
@@ -227,18 +227,16 @@ static int stm32_pinctrl_get_pin_muxing(struct udevice *dev,
 		break;
 	case GPIOF_FUNC:
 		af_num = stm32_pinctrl_get_af(gpio_dev, gpio_idx);
-		snprintf(buf, size, "%s %d %s", pinmux_mode[mode], af_num,
-			 pinmux_bias[pupd]);
+		snprintf(buf, size, "%s %d %s %s", pinmux_mode[mode], af_num,
+			 pinmux_otype[otype], pinmux_bias[pupd]);
 		break;
 	case GPIOF_OUTPUT:
-		snprintf(buf, size, "%s %s %s",
-			 pinmux_mode[mode], pinmux_bias[pupd],
-			 label ? label : "");
+		snprintf(buf, size, "%s %s %s %s",
+			 pinmux_mode[mode], pinmux_otype[otype],
+			 pinmux_bias[pupd], label ? label : "");
 		break;
 	case GPIOF_INPUT:
-		otype = (readl(&priv->regs->otyper) >> gpio_idx) & OTYPE_MSK;
-		snprintf(buf, size, "%s %s %s %s",
-			 pinmux_mode[mode], pinmux_input[otype],
+		snprintf(buf, size, "%s %s %s", pinmux_mode[mode],
 			 pinmux_bias[pupd], label ? label : "");
 		break;
 	}