pinctrl: qcom: sdm845: add special pin names

Adjust sdm845_get_pin_name() to return the correct names for the special
pins. This fixes a non-fatal -ENOSYS error when probing MMC.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
diff --git a/drivers/pinctrl/qcom/pinctrl-sdm845.c b/drivers/pinctrl/qcom/pinctrl-sdm845.c
index 459a432..c1e5cc0 100644
--- a/drivers/pinctrl/qcom/pinctrl-sdm845.c
+++ b/drivers/pinctrl/qcom/pinctrl-sdm845.c
@@ -66,7 +66,18 @@
 static const char *sdm845_get_pin_name(struct udevice *dev,
 					unsigned int selector)
 {
-	snprintf(pin_name, MAX_PIN_NAME_LEN, "gpio%u", selector);
+	static const char *special_pins_names[] = {
+		"ufs_reset",
+		"sdc2_clk",
+		"sdc2_cmd",
+		"sdc2_data",
+	};
+
+	if (selector >= 150 && selector <= 154)
+		snprintf(pin_name, MAX_PIN_NAME_LEN, special_pins_names[selector - 150]);
+	else
+		snprintf(pin_name, MAX_PIN_NAME_LEN, "gpio%u", selector);
+
 	return pin_name;
 }