[PATCH 3/4] drivers: pinctrl: Add Qualcomm MSM8953 TLMM driver

[Luca Weiss <luca.weiss@fairphone.com>]

Add support for TLMM pin controller block (Top Level Mode Multiplexer)
on MSM8953 SoC.

Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
---
 drivers/pinctrl/qcom/Kconfig           |  8 ++++
 drivers/pinctrl/qcom/Makefile          |  1 +
 drivers/pinctrl/qcom/pinctrl-msm8953.c | 80 ++++++++++++++++++++++++++++++++++
 3 files changed, 89 insertions(+)

diff --git a/drivers/pinctrl/qcom/Kconfig b/drivers/pinctrl/qcom/Kconfig
index 0bea461fcc3..21e735a2b99 100644
--- a/drivers/pinctrl/qcom/Kconfig
+++ b/drivers/pinctrl/qcom/Kconfig
@@ -62,6 +62,14 @@ config PINCTRL_QCOM_MILOS
 	  Say Y here to enable support for pinctrl on the Snapdragon Milos SoC,
 	  as well as the associated GPIO driver.
 
+config PINCTRL_QCOM_MSM8953
+	bool "Qualcomm MSM8953 Pinctrl"
+	default y if PINCTRL_QCOM_GENERIC
+	select PINCTRL_QCOM
+	help
+	  Say Y here to enable support for pinctrl on the MSM8953 SoC,
+	  as well as the associated GPIO driver.
+
 config PINCTRL_QCOM_QCM2290
 	bool "Qualcomm QCM2290 Pinctrl"
 	default y if PINCTRL_QCOM_GENERIC
diff --git a/drivers/pinctrl/qcom/Makefile b/drivers/pinctrl/qcom/Makefile
index 87cb128c4d4..064c75207cf 100644
--- a/drivers/pinctrl/qcom/Makefile
+++ b/drivers/pinctrl/qcom/Makefile
@@ -9,6 +9,7 @@ obj-$(CONFIG_PINCTRL_QCOM_IPQ5424) += pinctrl-ipq5424.o
 obj-$(CONFIG_PINCTRL_QCOM_IPQ9574) += pinctrl-ipq9574.o
 obj-$(CONFIG_PINCTRL_QCOM_APQ8096) += pinctrl-apq8096.o
 obj-$(CONFIG_PINCTRL_QCOM_MILOS) += pinctrl-milos.o
+obj-$(CONFIG_PINCTRL_QCOM_MSM8953) += pinctrl-msm8953.o
 obj-$(CONFIG_PINCTRL_QCOM_QCM2290) += pinctrl-qcm2290.o
 obj-$(CONFIG_PINCTRL_QCOM_QCS404) += pinctrl-qcs404.o
 obj-$(CONFIG_PINCTRL_QCOM_QCS615) += pinctrl-qcs615.o
diff --git a/drivers/pinctrl/qcom/pinctrl-msm8953.c b/drivers/pinctrl/qcom/pinctrl-msm8953.c
new file mode 100644
index 00000000000..0c51461183c
--- /dev/null
+++ b/drivers/pinctrl/qcom/pinctrl-msm8953.c
@@ -0,0 +1,80 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Qualcomm MSM8953 pinctrl
+ *
+ * (C) Copyright 2026 Luca Weiss <luca.weiss@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 char * const msm_pinctrl_pins[] = {
+	"qdsd_clk",
+	"qdsd_cmd",
+	"qdsd_data0",
+	"qdsd_data1",
+	"qdsd_data2",
+	"qdsd_data3",
+	"sdc1_clk",
+	"sdc1_cmd",
+	"sdc1_data",
+	"sdc1_rclk",
+	"sdc2_clk",
+	"sdc2_cmd",
+	"sdc2_data",
+};
+
+static const struct pinctrl_function msm_pinctrl_functions[] = {
+	{"blsp_uart2", 2},
+};
+
+static const char *msm8953_get_function_name(struct udevice *dev,
+					     unsigned int selector)
+{
+	return msm_pinctrl_functions[selector].name;
+}
+
+static const char *msm8953_get_pin_name(struct udevice *dev,
+					unsigned int selector)
+{
+	if (selector < 142) {
+		snprintf(pin_name, MAX_PIN_NAME_LEN, "gpio%u", selector);
+		return pin_name;
+	} else {
+		return msm_pinctrl_pins[selector - 142];
+	}
+}
+
+static int msm8953_get_function_mux(__maybe_unused unsigned int pin,
+				    unsigned int selector)
+{
+	return msm_pinctrl_functions[selector].val;
+}
+
+static const struct msm_pinctrl_data msm8953_data = {
+	.pin_data = {
+		.pin_count = 155,
+		.special_pins_start = 142,
+	},
+	.functions_count = ARRAY_SIZE(msm_pinctrl_functions),
+	.get_function_name = msm8953_get_function_name,
+	.get_function_mux = msm8953_get_function_mux,
+	.get_pin_name = msm8953_get_pin_name,
+};
+
+static const struct udevice_id msm_pinctrl_ids[] = {
+	{ .compatible = "qcom,msm8953-pinctrl", .data = (ulong)&msm8953_data },
+	{ /* Sentinel */ }
+};
+
+U_BOOT_DRIVER(pinctrl_msm8953) = {
+	.name		= "pinctrl_msm8953",
+	.id		= UCLASS_NOP,
+	.of_match	= msm_pinctrl_ids,
+	.ops		= &msm_pinctrl_ops,
+	.bind		= msm_pinctrl_bind,
+};

-- 
2.55.0