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pinctrl: qcom: add sc7280 pinctrl driver

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Introduce a pinctrl driver for SC7280/QCM6490, this is used by the RB3
Gen 2, FairPhone 5 and other devices.

Tested-by: Christopher Obbard <christopher.obbard@linaro.org>
Link: https://lore.kernel.org/r/20250122-pinctrl-sc7280-v1-1-8bdba72e6366@linaro.org
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
This commit is contained in:
Caleb Connolly 2025-01-22 16:02:51 +01:00
parent 773a46b18b
commit 51ec7fdb64
No known key found for this signature in database
GPG Key ID: 0583312B195F64B6
3 changed files with 114 additions and 0 deletions
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7
drivers/pinctrl/qcom/Kconfig
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@ -48,6 +48,13 @@ config PINCTRL_QCOM_QCS404
Say Y here to enable support for pinctrl on the Snapdragon QCS404 SoC,
as well as the associated GPIO driver.
config PINCTRL_QCOM_SC7280
bool "Qualcomm SC7280/QCM6490 Pinctrl"
select PINCTRL_QCOM
help
Say Y here to enable support for pinctrl on the Snapdragon SC7280 SoC,
as well as the associated GPIO driver.
config PINCTRL_QCOM_SDM845
bool "Qualcomm SDM845 GCC"
select PINCTRL_QCOM

1
drivers/pinctrl/qcom/Makefile
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@ -9,6 +9,7 @@ obj-$(CONFIG_PINCTRL_QCOM_IPQ9574) += pinctrl-ipq9574.o
obj-$(CONFIG_PINCTRL_QCOM_APQ8096) += pinctrl-apq8096.o
obj-$(CONFIG_PINCTRL_QCOM_QCM2290) += pinctrl-qcm2290.o
obj-$(CONFIG_PINCTRL_QCOM_QCS404) += pinctrl-qcs404.o
obj-$(CONFIG_PINCTRL_QCOM_SC7280) += pinctrl-sc7280.o
obj-$(CONFIG_PINCTRL_QCOM_SDM845) += pinctrl-sdm845.o
obj-$(CONFIG_PINCTRL_QCOM_SM6115) += pinctrl-sm6115.o
obj-$(CONFIG_PINCTRL_QCOM_SM8150) += pinctrl-sm8150.o

106
drivers/pinctrl/qcom/pinctrl-sc7280.c Normal file
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@ -0,0 +1,106 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Qualcomm sc7280 pinctrl
*
* (C) Copyright 2024 Linaro Ltd.
*
*/
#include <dm.h>
#include "pinctrl-qcom.h"
#define WEST 0x00000000
#define SOUTH 0x00400000
#define NORTH 0x00800000
#define MAX_PIN_NAME_LEN 32
static char pin_name[MAX_PIN_NAME_LEN] __section(".data");
static const struct pinctrl_function msm_pinctrl_functions[] = {
{ "qup05", 1 },
{ "gpio", 0 },
{ "pcie1_clkreqn", 3},
};
#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 sc7280_special_pins_data[] = {
[0] = UFS_RESET("ufs_reset", SOUTH + 0xbe000),
[1] = SDC_PINGROUP("sdc1_rclk", 0xb3004, 0, 6),
[2] = SDC_PINGROUP("sdc1_clk", 0xb3000, 13, 6),
[3] = SDC_PINGROUP("sdc1_cmd", 0xb3000, 11, 3),
[4] = SDC_PINGROUP("sdc1_data", 0xb3000, 9, 0),
[5] = SDC_PINGROUP("sdc2_clk", 0xb4000, 14, 6),
[6] = SDC_PINGROUP("sdc2_cmd", 0xb4000, 11, 3),
[7] = SDC_PINGROUP("sdc2_data", 0xb4000, 9, 0),
};
static const char *sc7280_get_function_name(struct udevice *dev, unsigned int selector)
{
return msm_pinctrl_functions[selector].name;
}
static const char *sc7280_get_pin_name(struct udevice *dev, unsigned int selector)
{
if (selector >= 175 && selector <= 182)
snprintf(pin_name, MAX_PIN_NAME_LEN,
sc7280_special_pins_data[selector - 175].name);
else
snprintf(pin_name, MAX_PIN_NAME_LEN, "gpio%u", selector);
return pin_name;
}
static int sc7280_get_function_mux(__maybe_unused unsigned int pin, unsigned int selector)
{
return msm_pinctrl_functions[selector].val;
}
static struct msm_pinctrl_data sc7280_data = {
.pin_data = {
.pin_count = 183,
.special_pins_start = 175,
.special_pins_data = sc7280_special_pins_data,
},
.functions_count = ARRAY_SIZE(msm_pinctrl_functions),
.get_function_name = sc7280_get_function_name,
.get_function_mux = sc7280_get_function_mux,
.get_pin_name = sc7280_get_pin_name,
};
static const struct udevice_id msm_pinctrl_ids[] = {
{
.compatible = "qcom,sc7280-pinctrl",
.data = (ulong)&sc7280_data
},
{ /* Sentinel */ } };
U_BOOT_DRIVER(pinctrl_sc7280) = {
.name = "pinctrl_sc7280",
.id = UCLASS_NOP,
.of_match = msm_pinctrl_ids,
.ops = &msm_pinctrl_ops,
.bind = msm_pinctrl_bind,
};