[PATCH v2 2/3] pinctrl: qcom: add driver for SM8150 SoC

Julius Lehmann lehmanju at devpi.de
Wed Sep 11 10:42:01 CEST 2024


Add pinctrl and GPIO driver for SM8150. Driver code is based on the
similar U-Boot drivers. All constants are taken from the corresponding
Linux driver. This drivers differs from the similar U-Boot drivers,
because SM8150 SoC have different function IDs for the same functions
on different pins.

Co-authored-by: Volodymyr Babchuk <volodymyr_babchuk at epam.com>
Signed-off-by: Julius Lehmann <lehmanju at devpi.de>
---
 drivers/pinctrl/qcom/Kconfig          |   8 ++
 drivers/pinctrl/qcom/Makefile         |   1 +
 drivers/pinctrl/qcom/pinctrl-sm8150.c | 156 ++++++++++++++++++++++++++++++++++
 3 files changed, 165 insertions(+)

diff --git a/drivers/pinctrl/qcom/Kconfig b/drivers/pinctrl/qcom/Kconfig
index b326fa8514..501939f783 100644
--- a/drivers/pinctrl/qcom/Kconfig
+++ b/drivers/pinctrl/qcom/Kconfig
@@ -74,6 +74,14 @@ config PINCTRL_QCOM_SM8650
 	select PINCTRL_QCOM
 	help
 	  Say Y here to enable support for pinctrl on the Snapdragon SM8650 SoC,
+	  as well as the associated GPIO driver.
+
+config PINCTRL_QCOM_SM8150
+	bool "Qualcomm SM8150 GCC"
+	select PINCTRL_QCOM
+	help
+	  Say Y here to enable support for pinctrl on the Snapdragon SM8150 SoC,
+	  as well as the associated GPIO driver.
 
 endmenu
 
diff --git a/drivers/pinctrl/qcom/Makefile b/drivers/pinctrl/qcom/Makefile
index 4f1d96787b..cc3660a576 100644
--- a/drivers/pinctrl/qcom/Makefile
+++ b/drivers/pinctrl/qcom/Makefile
@@ -13,3 +13,4 @@ obj-$(CONFIG_PINCTRL_QCOM_SM6115) += pinctrl-sm6115.o
 obj-$(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_SM8150) += pinctrl-sm8150.o
diff --git a/drivers/pinctrl/qcom/pinctrl-sm8150.c b/drivers/pinctrl/qcom/pinctrl-sm8150.c
new file mode 100644
index 0000000000..1fb2ffb959
--- /dev/null
+++ b/drivers/pinctrl/qcom/pinctrl-sm8150.c
@@ -0,0 +1,156 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Qualcomm SM8150 pinctrl and GPIO driver
+ *
+ * Volodymyr Babchuk <volodymyr_babchuk at epam.com>
+ * Copyright (c) 2024 EPAM Systems.
+ *
+ * (C) Copyright 2024 Julius Lehmann <lehmanju at devpi.de>
+ *
+ * Based on similar U-Boot drivers. Constants were taken from the Linux driver
+ */
+
+#include <dm.h>
+
+#include "pinctrl-qcom.h"
+
+#define WEST	0x100000
+#define EAST	0x500000
+#define NORTH	0x900000
+#define SOUTH	0xd00000
+
+#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", 1 },
+	{ "gpio", 0 },
+};
+
+static const unsigned int sm8150_pin_offsets[] = {
+	[0]   = SOUTH, [1]   = SOUTH, [2]   = SOUTH, [3]   = SOUTH,
+	[4]   = SOUTH, [5]   = SOUTH, [6]   = SOUTH, [7]   = SOUTH,
+	[8]   = NORTH, [9]   = NORTH, [10]  = NORTH, [11]  = NORTH,
+	[12]  = NORTH, [13]  = NORTH, [14]  = NORTH, [15]  = NORTH,
+	[16]  = NORTH, [17]  = NORTH, [18]  = NORTH, [19]  = NORTH,
+	[20]  = NORTH, [21]  = EAST,  [22]  = EAST,  [23]  = EAST,
+	[24]  = EAST,  [25]  = EAST,  [26]  = EAST,  [27]  = EAST,
+	[28]  = EAST,  [29]  = EAST,  [30]  = EAST,  [31]  = NORTH,
+	[32]  = NORTH, [33]  = NORTH, [34]  = NORTH, [35]  = NORTH,
+	[36]  = NORTH, [37]  = NORTH, [38]  = SOUTH, [39]  = NORTH,
+	[40]  = NORTH, [41]  = NORTH, [42]  = NORTH, [43]  = EAST,
+	[44]  = EAST,  [45]  = EAST,  [46]  = EAST,  [47]  = EAST,
+	[48]  = EAST,  [49]  = EAST,  [50]  = EAST,  [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]  = NORTH,
+	[84]  = NORTH, [85]  = NORTH, [86]  = NORTH, [87]  = EAST,
+	[88]  = NORTH, [89]  = NORTH, [90]  = NORTH, [91]  = NORTH,
+	[92]  = NORTH, [93]  = NORTH, [94]  = NORTH, [95]  = NORTH,
+	[96]  = NORTH, [97]  = NORTH, [98]  = SOUTH, [99]  = SOUTH,
+	[100] = SOUTH, [101] = SOUTH, [102] = NORTH, [103] = NORTH,
+	[104] = NORTH, [105] = WEST,  [106] = WEST,  [107] = WEST,
+	[108] = WEST,  [109] = WEST,  [110] = WEST,  [111] = WEST,
+	[112] = WEST,  [113] = WEST,  [114] = SOUTH, [115] = SOUTH,
+	[116] = SOUTH, [117] = SOUTH, [118] = SOUTH, [119] = SOUTH,
+	[120] = SOUTH, [121] = SOUTH, [122] = SOUTH, [123] = SOUTH,
+	[124] = SOUTH, [125] = WEST,  [126] = SOUTH, [127] = SOUTH,
+	[128] = SOUTH, [129] = SOUTH, [130] = SOUTH, [131] = SOUTH,
+	[132] = SOUTH, [133] = SOUTH, [134] = SOUTH, [135] = SOUTH,
+	[136] = SOUTH, [137] = SOUTH, [138] = SOUTH, [139] = SOUTH,
+	[140] = SOUTH, [141] = SOUTH, [142] = SOUTH, [143] = SOUTH,
+	[144] = SOUTH, [145] = SOUTH, [146] = SOUTH, [147] = SOUTH,
+	[148] = SOUTH, [149] = SOUTH, [150] = SOUTH, [151] = SOUTH,
+	[152] = SOUTH, [153] = SOUTH, [154] = SOUTH, [155] = WEST,
+	[156] = WEST,  [157] = WEST,  [158] = WEST,  [159] = WEST,
+	[160] = WEST,  [161] = WEST,  [162] = WEST,  [163] = WEST,
+	[164] = WEST,  [165] = WEST,  [166] = WEST,  [167] = WEST,
+	[168] = WEST,  [169] = NORTH, [170] = NORTH, [171] = NORTH,
+	[172] = NORTH, [173] = NORTH, [174] = NORTH,
+};
+
+#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 + 0x04,  \
+		.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", SOUTH + 0xb6000),
+	[1] = SDC_QDSD_PINGROUP("sdc2_clk", NORTH + 0xb2000, 14, 6),
+	[2] = SDC_QDSD_PINGROUP("sdc2_cmd", NORTH + 0xb2000, 11, 3),
+	[3] = SDC_QDSD_PINGROUP("sdc2_data", NORTH + 0xb2000, 9, 0),
+};
+
+static const char *sm8150_get_function_name(struct udevice *dev,
+					    unsigned int selector)
+{
+	return msm_pinctrl_functions[selector].name;
+}
+
+static const char *sm8150_get_pin_name(struct udevice *dev,
+				       unsigned int selector)
+{
+	if (selector >= 175 && selector <= 178)
+		snprintf(pin_name, MAX_PIN_NAME_LEN,
+			 msm_special_pins_data[selector - 175].name);
+	else
+		snprintf(pin_name, MAX_PIN_NAME_LEN, "gpio%u", selector);
+
+	return pin_name;
+}
+
+static unsigned int sm8150_get_function_mux(__maybe_unused unsigned int pin,
+					    unsigned int selector)
+{
+	return msm_pinctrl_functions[selector].val;
+}
+
+static struct msm_pinctrl_data sm8150_data = {
+	.pin_data = {
+		.pin_offsets = sm8150_pin_offsets,
+		.pin_count = 179,
+		.special_pins_start = 175,
+		.special_pins_data = msm_special_pins_data,
+	},
+	.functions_count = ARRAY_SIZE(msm_pinctrl_functions),
+	.get_function_name = sm8150_get_function_name,
+	.get_function_mux = sm8150_get_function_mux,
+	.get_pin_name = sm8150_get_pin_name,
+};
+
+static const struct udevice_id msm_pinctrl_ids[] = {
+	{ .compatible = "qcom,sm8150-pinctrl", .data = (ulong)&sm8150_data },
+	{ /* Sentinel */ }
+};
+
+U_BOOT_DRIVER(pinctrl_sm8150) = {
+	.name		= "pinctrl_sm8150",
+	.id		= UCLASS_NOP,
+	.of_match	= msm_pinctrl_ids,
+	.ops		= &msm_pinctrl_ops,
+	.bind		= msm_pinctrl_bind,
+};

-- 
2.46.0



More information about the U-Boot mailing list