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pinctrl: stmfx: add information on pin configuration

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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>
This commit is contained in:
Patrick Delaunay
2020-06-04 14:30:32 +02:00
parent 8d895efffe
commit 5593333c2e
1 changed files with 31 additions and 1 deletions
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32
drivers/pinctrl/pinctrl-stmfx.c
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@@ -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;
}