[PATCH RFC 3/3] drivers: pinctrl: Add Qualcomm SM6125 TLMM driver
Casey Connolly
casey.connolly at linaro.org
Mon Feb 9 20:51:30 CET 2026
On 04/02/2026 17:10, Biswapriyo Nath wrote:
> Add support for TLMM pin controller block (Top Level Mode Multiplexer)
> on SM6125 SoC, with support for special pins.
>
> Signed-off-by: Biswapriyo Nath <nathbappai at gmail.com>
Reviewed-by: Casey Connolly <casey.connolly at linaro.org>
> ---
> drivers/pinctrl/qcom/Kconfig | 8 ++
> drivers/pinctrl/qcom/Makefile | 1 +
> drivers/pinctrl/qcom/pinctrl-sm6125.c | 147 ++++++++++++++++++++++++++++++++++
> 3 files changed, 156 insertions(+)
>
> diff --git a/drivers/pinctrl/qcom/Kconfig b/drivers/pinctrl/qcom/Kconfig
> index 580308621..d1c762891 100644
> --- a/drivers/pinctrl/qcom/Kconfig
> +++ b/drivers/pinctrl/qcom/Kconfig
> @@ -125,6 +125,14 @@ 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_SM6125
> + bool "Qualcomm SM6125 Pinctrl"
> + default y if PINCTRL_QCOM_GENERIC
> + select PINCTRL_QCOM
> + help
> + Say Y here to enable support for pinctrl on the Snapdragon SM6125 SoC,
> + as well as the associated GPIO driver.
> +
> config PINCTRL_QCOM_SM6350
> bool "Qualcomm SM6350 Pinctrl"
> default y if PINCTRL_QCOM_GENERIC
> diff --git a/drivers/pinctrl/qcom/Makefile b/drivers/pinctrl/qcom/Makefile
> index b5a111605..1844f37ed 100644
> --- a/drivers/pinctrl/qcom/Makefile
> +++ b/drivers/pinctrl/qcom/Makefile
> @@ -17,6 +17,7 @@ obj-$(CONFIG_PINCTRL_QCOM_SDM660) += pinctrl-sdm660.o
> obj-$(CONFIG_PINCTRL_QCOM_SDM670) += pinctrl-sdm670.o
> obj-$(CONFIG_PINCTRL_QCOM_SDM845) += pinctrl-sdm845.o
> obj-$(CONFIG_PINCTRL_QCOM_SM6115) += pinctrl-sm6115.o
> +obj-$(CONFIG_PINCTRL_QCOM_SM6125) += pinctrl-sm6125.o
> obj-$(CONFIG_PINCTRL_QCOM_SM6350) += pinctrl-sm6350.o
> obj-$(CONFIG_PINCTRL_QCOM_SM7150) += pinctrl-sm7150.o
> obj-$(CONFIG_PINCTRL_QCOM_SM8150) += pinctrl-sm8150.o
> diff --git a/drivers/pinctrl/qcom/pinctrl-sm6125.c b/drivers/pinctrl/qcom/pinctrl-sm6125.c
> new file mode 100644
> index 000000000..82f8972ff
> --- /dev/null
> +++ b/drivers/pinctrl/qcom/pinctrl-sm6125.c
> @@ -0,0 +1,147 @@
> +// SPDX-License-Identifier: BSD-3-Clause
> +/*
> + * Pinctrl driver for Qualcomm SM6125
> + *
> + * (C) Copyright 2026 Biswapriyo Nath <nathbappai at gmail.com>
> + *
> + * Based on Linux Kernel driver
> + */
> +
> +#include <dm.h>
> +
> +#include "pinctrl-qcom.h"
> +
> +#define TLMM_BASE 0x00500000
> +#define WEST (0x00500000 - TLMM_BASE) /* 0x0 */
> +#define SOUTH (0x00900000 - TLMM_BASE) /* 0x400000 */
> +#define EAST (0x00d00000 - TLMM_BASE) /* 0x800000 */
> +
> +#define MAX_PIN_NAME_LEN 32
> +static char pin_name[MAX_PIN_NAME_LEN] __section(".data");
> +
> +static const struct pinctrl_function msm_pinctrl_functions[] = {
> + { "qup04", 1 },
> + { "gpio", 0 },
> +};
> +
> +#define SDC_QDSD_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 msm_special_pins_data[] = {
> + [0] = UFS_RESET("ufs_reset", 0x190000),
> + [1] = SDC_QDSD_PINGROUP("sdc1_rclk", WEST + 0x18d000, 15, 0),
> + [2] = SDC_QDSD_PINGROUP("sdc1_clk", WEST + 0x18d000, 13, 6),
> + [3] = SDC_QDSD_PINGROUP("sdc1_cmd", WEST + 0x18d000, 11, 3),
> + [4] = SDC_QDSD_PINGROUP("sdc1_data", WEST + 0x18d000, 9, 0),
> + [5] = SDC_QDSD_PINGROUP("sdc2_clk", SOUTH + 0x58b000, 14, 6),
> + [6] = SDC_QDSD_PINGROUP("sdc2_cmd", SOUTH + 0x58b000, 11, 3),
> + [7] = SDC_QDSD_PINGROUP("sdc2_data", SOUTH + 0x58b000, 9, 0),
> +};
> +
> +static const unsigned int sm6125_pin_offsets[] = {
> + [0] = WEST, [1] = WEST, [2] = WEST, [3] = WEST,
> + [4] = WEST, [5] = WEST, [6] = WEST, [7] = WEST,
> + [8] = WEST, [9] = WEST, [10] = EAST, [11] = EAST,
> + [12] = EAST, [13] = EAST, [14] = WEST, [15] = WEST,
> + [16] = WEST, [17] = WEST, [18] = EAST, [19] = EAST,
> + [20] = EAST, [21] = EAST, [22] = WEST, [23] = WEST,
> + [24] = WEST, [25] = WEST, [26] = WEST, [27] = WEST,
> + [28] = WEST, [29] = WEST, [30] = WEST, [31] = WEST,
> + [32] = WEST, [33] = WEST, [34] = SOUTH, [35] = SOUTH,
> + [36] = SOUTH, [37] = SOUTH, [38] = EAST, [39] = EAST,
> + [40] = EAST, [41] = EAST, [42] = EAST, [43] = EAST,
> + [44] = SOUTH, [45] = SOUTH, [46] = SOUTH, [47] = SOUTH,
> + [48] = SOUTH, [49] = SOUTH, [50] = SOUTH, [51] = SOUTH,
> + [52] = SOUTH, [53] = SOUTH, [54] = SOUTH, [55] = SOUTH,
> + [56] = SOUTH, [57] = SOUTH, [58] = SOUTH, [59] = SOUTH,
> + [60] = SOUTH, [61] = SOUTH, [62] = SOUTH, [63] = SOUTH,
> + [64] = SOUTH, [65] = SOUTH, [66] = SOUTH, [67] = SOUTH,
> + [68] = SOUTH, [69] = SOUTH, [70] = SOUTH, [71] = SOUTH,
> + [72] = SOUTH, [73] = SOUTH, [74] = SOUTH, [75] = SOUTH,
> + [76] = SOUTH, [77] = SOUTH, [78] = SOUTH, [79] = SOUTH,
> + [80] = SOUTH, [81] = SOUTH, [82] = SOUTH, [83] = SOUTH,
> + [84] = SOUTH, [85] = SOUTH, [86] = SOUTH, [87] = WEST,
> + [88] = WEST, [89] = WEST, [90] = WEST, [91] = WEST,
> + [92] = WEST, [93] = WEST, [94] = SOUTH, [95] = SOUTH,
> + [96] = SOUTH, [97] = SOUTH, [98] = SOUTH, [99] = SOUTH,
> + [100] = SOUTH, [101] = SOUTH, [102] = SOUTH, [103] = SOUTH,
> + [104] = EAST, [105] = EAST, [106] = EAST, [107] = EAST,
> + [108] = EAST, [109] = EAST, [110] = EAST, [111] = EAST,
> + [112] = EAST, [113] = EAST, [114] = EAST, [115] = EAST,
> + [116] = EAST, [117] = SOUTH, [118] = SOUTH, [119] = SOUTH,
> + [120] = SOUTH, [121] = EAST, [122] = EAST, [123] = EAST,
> + [124] = EAST, [125] = EAST, [126] = EAST, [127] = EAST,
> + [128] = EAST, [129] = SOUTH, [130] = SOUTH, [131] = SOUTH,
> + [132] = SOUTH,
> +};
> +
> +static const char *sm6125_get_function_name(struct udevice *dev,
> + unsigned int selector)
> +{
> + return msm_pinctrl_functions[selector].name;
> +}
> +
> +static const char *sm6125_get_pin_name(struct udevice *dev,
> + unsigned int selector)
> +{
> + if (selector >= 133 && selector <= 140)
> + snprintf(pin_name, MAX_PIN_NAME_LEN,
> + msm_special_pins_data[selector - 133].name);
> + else
> + snprintf(pin_name, MAX_PIN_NAME_LEN, "gpio%u", selector);
> +
> + return pin_name;
> +}
> +
> +static int sm6125_get_function_mux(__maybe_unused unsigned int pin,
> + unsigned int selector)
> +{
> + return msm_pinctrl_functions[selector].val;
> +}
> +
> +static struct msm_pinctrl_data sm6125_data = {
> + .pin_data = {
> + .pin_offsets = sm6125_pin_offsets,
> + .pin_count = 141,
> + .special_pins_start = 133,
> + .special_pins_data = msm_special_pins_data,
> + },
> + .functions_count = ARRAY_SIZE(msm_pinctrl_functions),
> + .get_function_name = sm6125_get_function_name,
> + .get_function_mux = sm6125_get_function_mux,
> + .get_pin_name = sm6125_get_pin_name,
> +};
> +
> +static const struct udevice_id msm_pinctrl_ids[] = {
> + { .compatible = "qcom,sm6125-tlmm", .data = (ulong)&sm6125_data },
> + { /* sentinel */ }
> +};
> +
> +U_BOOT_DRIVER(pinctrl_sm6125) = {
> + .name = "pinctrl_sm6125",
> + .id = UCLASS_NOP,
> + .of_match = msm_pinctrl_ids,
> + .ops = &msm_pinctrl_ops,
> + .bind = msm_pinctrl_bind,
> +};
>
--
// Casey (she/her)
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