arm: mach-snapdragon: add pinctrl driver for db820c
Add pinctrl driver for Dragonboard820c, currently with only
one mux func to initialize pins for serial console.
Signed-off-by: Ramon Fried <ramon.fried@gmail.com>
diff --git a/arch/arm/mach-snapdragon/pinctrl-apq8096.c b/arch/arm/mach-snapdragon/pinctrl-apq8096.c
new file mode 100644
index 0000000..20a71c3
--- /dev/null
+++ b/arch/arm/mach-snapdragon/pinctrl-apq8096.c
@@ -0,0 +1,56 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Qualcomm APQ8096 pinctrl
+ *
+ * (C) Copyright 2019 Ramon Fried <ramon.fried@gmail.com>
+ *
+ */
+
+#include "pinctrl-snapdragon.h"
+#include <common.h>
+
+#define MAX_PIN_NAME_LEN 32
+static char pin_name[MAX_PIN_NAME_LEN];
+static const char * const msm_pinctrl_pins[] = {
+ "SDC1_CLK",
+ "SDC1_CMD",
+ "SDC1_DATA",
+ "SDC2_CLK",
+ "SDC2_CMD",
+ "SDC2_DATA",
+ "SDC1_RCLK",
+};
+
+static const struct pinctrl_function msm_pinctrl_functions[] = {
+ {"blsp_uart8", 2},
+};
+
+static const char *apq8096_get_function_name(struct udevice *dev,
+ unsigned int selector)
+{
+ return msm_pinctrl_functions[selector].name;
+}
+
+static const char *apq8096_get_pin_name(struct udevice *dev,
+ unsigned int selector)
+{
+ if (selector < 150) {
+ snprintf(pin_name, MAX_PIN_NAME_LEN, "GPIO_%u", selector);
+ return pin_name;
+ } else {
+ return msm_pinctrl_pins[selector - 150];
+ }
+}
+
+static unsigned int apq8096_get_function_mux(unsigned int selector)
+{
+ return msm_pinctrl_functions[selector].val;
+}
+
+struct msm_pinctrl_data apq8096_data = {
+ .pin_count = 157,
+ .functions_count = ARRAY_SIZE(msm_pinctrl_functions),
+ .get_function_name = apq8096_get_function_name,
+ .get_function_mux = apq8096_get_function_mux,
+ .get_pin_name = apq8096_get_pin_name,
+};