Add information on pin configuration used for pinmux command.
Signed-off-by: Patrick Delaunay patrick.delaunay@st.com ---
drivers/pinctrl/pinctrl-stmfx.c | 35 ++++++++++++++++++++++++++++++++- 1 file changed, 34 insertions(+), 1 deletion(-)
diff --git a/drivers/pinctrl/pinctrl-stmfx.c b/drivers/pinctrl/pinctrl-stmfx.c index 0b5a0433cd..0cd371fefa 100644 --- a/drivers/pinctrl/pinctrl-stmfx.c +++ b/drivers/pinctrl/pinctrl-stmfx.c @@ -286,6 +286,37 @@ 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; + u32 mask = get_mask(pin); + + type = stmfx_read(dev, STMFX_REG_GPIO_TYPE + get_reg(pin)); + if (type < 0) + return ""; + type &= mask; + + if (func == GPIOF_INPUT) { + if (type) + return "drive-open-drain"; + else + return "drive-push-pull"; + } + if (!type) + return "bias-disable"; + + pupd = stmfx_read(dev, STMFX_REG_GPIO_PUPD + get_reg(pin)); + if (pupd < 0) + return ""; + pupd &= mask; + + 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) @@ -297,7 +328,9 @@ 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; }