pinctrl: meson: add common function to get pins name

In order to support the "pinmux status" command, add common function
to get pins count and pin name.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>

2 files changed, 27 insertions, 0 deletions

diff --git a/drivers/pinctrl/meson/pinctrl-meson.c b/drivers/pinctrl/meson/pinctrl-meson.c
index 8735418c5b..eb40a84ed1 100644
--- a/drivers/pinctrl/meson/pinctrl-meson.c
+++ b/drivers/pinctrl/meson/pinctrl-meson.c
@@ -20,6 +20,8 @@ DECLARE_GLOBAL_DATA_PTR;
 
 static const char *meson_pinctrl_dummy_name = "_dummy";
 
+static char pin_name[PINNAME_SIZE];
+
 int meson_pinctrl_get_groups_count(struct udevice *dev)
 {
 	struct meson_pinctrl *priv = dev_get_priv(dev);
@@ -38,6 +40,28 @@ const char *meson_pinctrl_get_group_name(struct udevice *dev,
 	return priv->data->groups[selector].name;
 }
 
+int meson_pinctrl_get_pins_count(struct udevice *dev)
+{
+	struct meson_pinctrl *priv = dev_get_priv(dev);
+
+	return priv->data->num_pins;
+}
+
+const char *meson_pinctrl_get_pin_name(struct udevice *dev,
+				       unsigned int selector)
+{
+	struct meson_pinctrl *priv = dev_get_priv(dev);
+
+	if (selector > priv->data->num_pins ||
+	    selector > priv->data->funcs[0].num_groups)
+		snprintf(pin_name, PINNAME_SIZE, "Error");
+	else
+		snprintf(pin_name, PINNAME_SIZE, "%s",
+			 priv->data->funcs[0].groups[selector]);
+
+	return pin_name;
+}
+
 int meson_pinmux_get_functions_count(struct udevice *dev)
 {
 	struct meson_pinctrl *priv = dev_get_priv(dev);
diff --git a/drivers/pinctrl/meson/pinctrl-meson.h b/drivers/pinctrl/meson/pinctrl-meson.h
index b3683e2073..0882dfe713 100644
--- a/drivers/pinctrl/meson/pinctrl-meson.h
+++ b/drivers/pinctrl/meson/pinctrl-meson.h
@@ -120,6 +120,9 @@ extern const struct pinctrl_ops meson_pinctrl_ops;
 int meson_pinctrl_get_groups_count(struct udevice *dev);
 const char *meson_pinctrl_get_group_name(struct udevice *dev,
 					 unsigned int selector);
+int meson_pinctrl_get_pins_count(struct udevice *dev);
+const char *meson_pinctrl_get_pin_name(struct udevice *dev,
+				       unsigned int selector);
 int meson_pinmux_get_functions_count(struct udevice *dev);
 const char *meson_pinmux_get_function_name(struct udevice *dev,
 					   unsigned int selector);