Add support for TLMM pin controller block (Top Level Mode Multiplexer)
on SM6350 SoC, with support for special pins.
Correct pin configuration is required for working debug UART and eMMC/SD
cards.
Reviewed-by: Neil Armstrong <neil.armstr...@linaro.org>
Signed-off-by: Luca Weiss <luca.we...@fairphone.com>
---
drivers/pinctrl/qcom/Kconfig | 7 +++
drivers/pinctrl/qcom/Makefile | 1 +
drivers/pinctrl/qcom/pinctrl-sm6350.c | 104 ++++++++++++++++++++++++++++++++++
3 files changed, 112 insertions(+)
diff --git a/drivers/pinctrl/qcom/Kconfig b/drivers/pinctrl/qcom/Kconfig
index
21f81b6609910c06b83941633481d69c7b0a491f..3f11d26f70ea699da716052ab6e566a0021abdd9
100644
--- a/drivers/pinctrl/qcom/Kconfig
+++ b/drivers/pinctrl/qcom/Kconfig
@@ -89,6 +89,13 @@ config PINCTRL_QCOM_SM6115
Say Y here to enable support for pinctrl on the Snapdragon SM6115 SoC,
as well as the associated GPIO driver.
+config PINCTRL_QCOM_SM6350
+ bool "Qualcomm SM6350 Pinctrl"
+ select PINCTRL_QCOM
+ help
+ Say Y here to enable support for pinctrl on the Snapdragon SM6350 SoC,
+ as well as the associated GPIO driver.
+
config PINCTRL_QCOM_SM8150
bool "Qualcomm SM8150 Pinctrl"
select PINCTRL_QCOM
diff --git a/drivers/pinctrl/qcom/Makefile b/drivers/pinctrl/qcom/Makefile
index
6cb53838e71b8075b359cf7890e5174223d54b5c..7779dc635f06d1fa718f15595200e63603b44bc3
100644
--- a/drivers/pinctrl/qcom/Makefile
+++ b/drivers/pinctrl/qcom/Makefile
@@ -15,6 +15,7 @@ obj-$(CONFIG_PINCTRL_QCOM_SC7280) += pinctrl-sc7280.o
obj-$(CONFIG_PINCTRL_QCOM_SDM660) += pinctrl-sdm660.o
obj-$(CONFIG_PINCTRL_QCOM_SDM845) += pinctrl-sdm845.o
obj-$(CONFIG_PINCTRL_QCOM_SM6115) += pinctrl-sm6115.o
+obj-$(CONFIG_PINCTRL_QCOM_SM6350) += pinctrl-sm6350.o
obj-$(CONFIG_PINCTRL_QCOM_SM8150) += pinctrl-sm8150.o
obj-$(CONFIG_PINCTRL_QCOM_SM8250) += pinctrl-sm8250.o
obj-$(CONFIG_PINCTRL_QCOM_SM8550) += pinctrl-sm8550.o
diff --git a/drivers/pinctrl/qcom/pinctrl-sm6350.c
b/drivers/pinctrl/qcom/pinctrl-sm6350.c
new file mode 100644
index
0000000000000000000000000000000000000000..1cbed77b55f28ce5f644173dfb3cba5398db504f
--- /dev/null
+++ b/drivers/pinctrl/qcom/pinctrl-sm6350.c
@@ -0,0 +1,104 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Qualcomm sm6350 pinctrl
+ *
+ * (C) Copyright 2024 Linaro Ltd.
+ * (C) Copyright 2025 Luca Weiss <luca.we...@fairphone.com>
+ *
+ */
+
+#include <dm.h>
+
+#include "pinctrl-qcom.h"
+
+#define MAX_PIN_NAME_LEN 32
+static char pin_name[MAX_PIN_NAME_LEN] __section(".data");
+
+static const struct pinctrl_function msm_pinctrl_functions[] = {
+ {"qup13_f2", 1},
+ {"gpio", 0},
+};
+
+#define SDC_PINGROUP(pg_name, ctl, pull, drv) \
+ { \
+ .name = pg_name, \
+ .ctl_reg = ctl, \
+ .io_reg = 0, \
+ .pull_bit = pull, \
+ .drv_bit = drv, \
+ .oe_bit = -1, \
+ .in_bit = -1, \
+ .out_bit = -1, \
+ }
+
+#define UFS_RESET(pg_name, offset) \
+ { \
+ .name = pg_name, \
+ .ctl_reg = offset, \
+ .io_reg = offset + 0x4, \
+ .pull_bit = 3, \
+ .drv_bit = 0, \
+ .oe_bit = -1, \
+ .in_bit = -1, \
+ .out_bit = 0, \
+ }
+
+static const struct msm_special_pin_data sm6350_special_pins_data[] = {
+ [0] = UFS_RESET("ufs_reset", 0xae000),
+ [1] = SDC_PINGROUP("sdc1_rclk", 0xa1000, 15, 0),
+ [2] = SDC_PINGROUP("sdc1_clk", 0xa0000, 13, 6),
+ [3] = SDC_PINGROUP("sdc1_cmd", 0xa0000, 11, 3),
+ [4] = SDC_PINGROUP("sdc1_data", 0xa0000, 9, 0),
+ [5] = SDC_PINGROUP("sdc2_clk", 0xa2000, 14, 6),
+ [6] = SDC_PINGROUP("sdc2_cmd", 0xa2000, 11, 3),
+ [7] = SDC_PINGROUP("sdc2_data", 0xa2000, 9, 0),
+};
+
+static const char *sm6350_get_function_name(struct udevice *dev,
+ unsigned int selector)
+{
+ return msm_pinctrl_functions[selector].name;
+}
+
+static const char *sm6350_get_pin_name(struct udevice *dev,
+ unsigned int selector)
+{
+ if (selector >= 156 && selector <= 163)
+ snprintf(pin_name, MAX_PIN_NAME_LEN,
+ sm6350_special_pins_data[selector - 156].name);
+ else
+ snprintf(pin_name, MAX_PIN_NAME_LEN, "gpio%u", selector);
+
+ return pin_name;
+}
+
+static int sm6350_get_function_mux(__maybe_unused unsigned int pin,
+ unsigned int selector)
+{
+ return msm_pinctrl_functions[selector].val;
+}
+
+static struct msm_pinctrl_data sm6350_data = {
+ .pin_data = {
+ .pin_count = 164,
+ .special_pins_start = 156,
+ .special_pins_data = sm6350_special_pins_data,
+ },
+ .functions_count = ARRAY_SIZE(msm_pinctrl_functions),
+ .get_function_name = sm6350_get_function_name,
+ .get_function_mux = sm6350_get_function_mux,
+ .get_pin_name = sm6350_get_pin_name,
+};
+
+static const struct udevice_id msm_pinctrl_ids[] = {
+ { .compatible = "qcom,sm6350-tlmm", .data = (ulong)&sm6350_data },
+ { /* Sentinel */ }
+};
+
+U_BOOT_DRIVER(pinctrl_sm6350) = {
+ .name = "pinctrl_sm6350",
+ .id = UCLASS_NOP,
+ .of_match = msm_pinctrl_ids,
+ .ops = &msm_pinctrl_ops,
+ .bind = msm_pinctrl_bind,
+};
--
2.51.0
