[PATCH RFC 12/14] pinctrl: qcom: Add X1E80100 pinctrl driver

[Caleb Connolly]

From: Neil Armstrong <neil.armstrong at linaro.org>

Add pinctrl driver for the TLMM block found in the X1E80100 SoC.

Signed-off-by: Neil Armstrong <neil.armstrong at linaro.org>
---
 drivers/pinctrl/qcom/Kconfig            |   7 +++
 drivers/pinctrl/qcom/Makefile           |   1 +
 drivers/pinctrl/qcom/pinctrl-x1e80100.c | 100 ++++++++++++++++++++++++++++++++
 3 files changed, 108 insertions(+)

diff --git a/drivers/pinctrl/qcom/Kconfig b/drivers/pinctrl/qcom/Kconfig
index 4f93a34281d5..d3eb69985510 100644
--- a/drivers/pinctrl/qcom/Kconfig
+++ b/drivers/pinctrl/qcom/Kconfig
@@ -82,7 +82,14 @@ config PINCTRL_QCOM_SM8650
 	help
 	  Say Y here to enable support for pinctrl on the Snapdragon SM8650 SoC,
 	  as well as the associated GPIO driver.
 
+config PINCTRL_QCOM_X1E80100
+	bool "Qualcomm X1E80100 GCC"
+	select PINCTRL_QCOM
+	help
+	  Say Y here to enable support for pinctrl on the Snapdragon X1E80100 SoC,
+	  as well as the associated GPIO driver.
+
 endmenu
 
 endif
diff --git a/drivers/pinctrl/qcom/Makefile b/drivers/pinctrl/qcom/Makefile
index 43d0dd292225..06d3c95f93a6 100644
--- a/drivers/pinctrl/qcom/Makefile
+++ b/drivers/pinctrl/qcom/Makefile
@@ -13,4 +13,5 @@ obj-$(CONFIG_PINCTRL_QCOM_SM6115) += pinctrl-sm6115.o
 obj-$(CONFIG_PINCTRL_QCOM_SM8150) += pinctrl-sm8150.o
 obj-$(CONFIG_PINCTRL_QCOM_SM8250) += pinctrl-sm8250.o
 obj-$(CONFIG_PINCTRL_QCOM_SM8550) += pinctrl-sm8550.o
 obj-$(CONFIG_PINCTRL_QCOM_SM8650) += pinctrl-sm8650.o
+obj-$(CONFIG_PINCTRL_QCOM_X1E80100) += pinctrl-x1e80100.o
diff --git a/drivers/pinctrl/qcom/pinctrl-x1e80100.c b/drivers/pinctrl/qcom/pinctrl-x1e80100.c
new file mode 100644
index 000000000000..2e2f5093272c
--- /dev/null
+++ b/drivers/pinctrl/qcom/pinctrl-x1e80100.c
@@ -0,0 +1,100 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Qualcomm x1e80100 pinctrl
+ *
+ * (C) Copyright 2024 Linaro Ltd.
+ *
+ */
+
+#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[] = {
+	{"qup2_se5", 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, ctl)				\
+	{					        \
+		.name = pg_name,			\
+		.ctl_reg = ctl,				\
+		.io_reg = ctl + 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", 0xf9000),
+	[1] = SDC_QDSD_PINGROUP("sdc2_clk", 0xf2000, 14, 6),
+	[2] = SDC_QDSD_PINGROUP("sdc2_cmd", 0xf2000, 11, 3),
+	[3] = SDC_QDSD_PINGROUP("sdc2_data", 0xf2000, 9, 0),
+};
+
+static const char *x1e80100_get_function_name(struct udevice *dev,
+					      unsigned int selector)
+{
+	return msm_pinctrl_functions[selector].name;
+}
+
+static const char *x1e80100_get_pin_name(struct udevice *dev,
+					 unsigned int selector)
+{
+	if (selector >= 238 && selector <= 241)
+		snprintf(pin_name, MAX_PIN_NAME_LEN,
+			 msm_special_pins_data[selector - 238].name);
+	else
+		snprintf(pin_name, MAX_PIN_NAME_LEN, "gpio%u", selector);
+
+	return pin_name;
+}
+
+static unsigned int x1e80100_get_function_mux(__maybe_unused unsigned int pin,
+					      unsigned int selector)
+{
+	return msm_pinctrl_functions[selector].val;
+}
+
+static struct msm_pinctrl_data x1e80100_data = {
+	.pin_data = {
+		.pin_count = 242,
+		.special_pins_start = 238,
+		.special_pins_data = msm_special_pins_data,
+	},
+	.functions_count = ARRAY_SIZE(msm_pinctrl_functions),
+	.get_function_name = x1e80100_get_function_name,
+	.get_function_mux = x1e80100_get_function_mux,
+	.get_pin_name = x1e80100_get_pin_name,
+};
+
+static const struct udevice_id msm_pinctrl_ids[] = {
+	{ .compatible = "qcom,x1e80100-tlmm", .data = (ulong)&x1e80100_data },
+	{ /* Sentinel */ }
+};
+
+U_BOOT_DRIVER(pinctrl_x1e80100) = {
+	.name		= "pinctrl_x1e80100",
+	.id		= UCLASS_NOP,
+	.of_match	= msm_pinctrl_ids,
+	.ops		= &msm_pinctrl_ops,
+	.bind		= msm_pinctrl_bind,
+};
+

-- 
2.47.0