From 5593333c2e4f674210a7415b6f61c16f7f3a4593 Mon Sep 17 00:00:00 2001
From: Patrick Delaunay <patrick.delaunay@st.com>
Date: Thu, 4 Jun 2020 14:30:32 +0200
Subject: [PATCH] pinctrl: stmfx: add information on pin configuration
Add information on pin configuration used for pinmux command.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
---
drivers/pinctrl/pinctrl-stmfx.c | 32 +++++++++++++++++++++++++++++++-
1 file changed, 31 insertions(+), 1 deletion(-)
diff --git a/drivers/pinctrl/pinctrl-stmfx.c b/drivers/pinctrl/pinctrl-stmfx.c
index 1d326ecf17..c2ea82770e 100644
--- a/drivers/pinctrl/pinctrl-stmfx.c
+++ b/drivers/pinctrl/pinctrl-stmfx.c
@@ -358,6 +358,34 @@ static const char *stmfx_pinctrl_get_pin_name(struct udevice *dev,
return pin_name;
}
+static const char *stmfx_pinctrl_get_pin_conf(struct udevice *dev,
+ unsigned int pin, int func)
+{
+ int pupd, type;
+
+ type = stmfx_conf_get_type(dev, pin);
+ if (type < 0)
+ return "";
+
+ if (func == GPIOF_OUTPUT) {
+ if (type)
+ return "drive-open-drain";
+ else
+ return ""; /* default: push-pull*/
+ }
+ if (!type)
+ return ""; /* default: bias-disable*/
+
+ pupd = stmfx_conf_get_pupd(dev, pin);
+ if (pupd < 0)
+ return "";
+
+ if (pupd)
+ return "bias-pull-up";
+ else
+ return "bias-pull-down";
+}
+
static int stmfx_pinctrl_get_pin_muxing(struct udevice *dev,
unsigned int selector,
char *buf, int size)
@@ -369,7 +397,9 @@ static int stmfx_pinctrl_get_pin_muxing(struct udevice *dev,
if (func < 0)
return func;
- snprintf(buf, size, "%s", func == GPIOF_INPUT ? "input" : "output");
+ snprintf(buf, size, "%s ", func == GPIOF_INPUT ? "input" : "output");
+
+ strncat(buf, stmfx_pinctrl_get_pin_conf(dev, selector, func), size);
return 0;
}
--
2.39.5