pinctrl: qcom: Add pinctrl driver for QCS404 SoC
Currently this pinctrl driver only supports BLSP UART2 specific pin
configuration.
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
diff --git a/arch/arm/mach-snapdragon/pinctrl-qcs404.c b/arch/arm/mach-snapdragon/pinctrl-qcs404.c
new file mode 100644
index 0000000..889ead0
--- /dev/null
+++ b/arch/arm/mach-snapdragon/pinctrl-qcs404.c
@@ -0,0 +1,55 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Qualcomm QCS404 pinctrl
+ *
+ * (C) Copyright 2022 Sumit Garg <sumit.garg@linaro.org>
+ */
+
+#include "pinctrl-snapdragon.h"
+#include <common.h>
+
+#define MAX_PIN_NAME_LEN 32
+static char pin_name[MAX_PIN_NAME_LEN] __section(".data");
+static const char * const msm_pinctrl_pins[] = {
+ "SDC1_RCLK",
+ "SDC1_CLK",
+ "SDC1_CMD",
+ "SDC1_DATA",
+ "SDC2_CLK",
+ "SDC2_CMD",
+ "SDC2_DATA",
+};
+
+static const struct pinctrl_function msm_pinctrl_functions[] = {
+ {"blsp_uart2", 1},
+};
+
+static const char *qcs404_get_function_name(struct udevice *dev,
+ unsigned int selector)
+{
+ return msm_pinctrl_functions[selector].name;
+}
+
+static const char *qcs404_get_pin_name(struct udevice *dev,
+ unsigned int selector)
+{
+ if (selector < 120) {
+ snprintf(pin_name, MAX_PIN_NAME_LEN, "GPIO_%u", selector);
+ return pin_name;
+ } else {
+ return msm_pinctrl_pins[selector - 120];
+ }
+}
+
+static unsigned int qcs404_get_function_mux(unsigned int selector)
+{
+ return msm_pinctrl_functions[selector].val;
+}
+
+struct msm_pinctrl_data qcs404_data = {
+ .pin_count = 126,
+ .functions_count = ARRAY_SIZE(msm_pinctrl_functions),
+ .get_function_name = qcs404_get_function_name,
+ .get_function_mux = qcs404_get_function_mux,
+ .get_pin_name = qcs404_get_pin_name,
+};