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pinctrl: starfive: Add StarFive JHB100 per2pok controller driver

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Add pinctrl driver for StarFive JHB100 SoC Peripheral-2 Power OK
(per2pok) pinctrl controller.

Co-developed-by: Lianfeng Ouyang <lianfeng.ouyang@starfivetech.com>
Signed-off-by: Lianfeng Ouyang <lianfeng.ouyang@starfivetech.com>
Signed-off-by: Alex Soo <yuklin.soo@starfivetech.com>
Signed-off-by: Changhuang Liang <changhuang.liang@starfivetech.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>
This commit is contained in:
Changhuang Liang 2026-09-10 03:03:53 -07:00 committed by Linus Walleij
parent c9ed9daba9
commit c12e9b3e39
3 changed files with 111 additions and 0 deletions
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11
drivers/pinctrl/starfive/Kconfig
View File

@ -89,6 +89,17 @@ config PINCTRL_STARFIVE_JHB100_PER2
peripherals supporting inputs, outputs, configuring pull-up/pull-down
and interrupts on input changes.
config PINCTRL_STARFIVE_JHB100_PER2POK
tristate "StarFive JHB100 SoC Peripheral-2 Power OK pinctrl and GPIO driver"
depends on ARCH_STARFIVE || COMPILE_TEST
select PINCTRL_STARFIVE_JHB100
default ARCH_STARFIVE
help
Say yes here to support Peripheral-2 Power OK pin control on the StarFive JHB100 SoC.
This also provides an interface to the GPIO pins not used by other
peripherals supporting inputs, outputs, configuring pull-up/pull-down
and interrupts on input changes.
config PINCTRL_STARFIVE_JHB100_SYS0
tristate "StarFive JHB100 SoC System-0 pinctrl and GPIO driver"
depends on ARCH_STARFIVE || COMPILE_TEST

1
drivers/pinctrl/starfive/Makefile
View File

@ -10,6 +10,7 @@ obj-$(CONFIG_PINCTRL_STARFIVE_JHB100) += pinctrl-starfive-jhb100.o
obj-$(CONFIG_PINCTRL_STARFIVE_JHB100_PER0) += pinctrl-starfive-jhb100-per0.o
obj-$(CONFIG_PINCTRL_STARFIVE_JHB100_PER1) += pinctrl-starfive-jhb100-per1.o
obj-$(CONFIG_PINCTRL_STARFIVE_JHB100_PER2) += pinctrl-starfive-jhb100-per2.o
obj-$(CONFIG_PINCTRL_STARFIVE_JHB100_PER2POK) += pinctrl-starfive-jhb100-per2pok.o
obj-$(CONFIG_PINCTRL_STARFIVE_JHB100_SYS0) += pinctrl-starfive-jhb100-sys0.o
obj-$(CONFIG_PINCTRL_STARFIVE_JHB100_SYS0H) += pinctrl-starfive-jhb100-sys0h.o
obj-$(CONFIG_PINCTRL_STARFIVE_JHB100_SYS1) += pinctrl-starfive-jhb100-sys1.o

99
drivers/pinctrl/starfive/pinctrl-starfive-jhb100-per2pok.c Normal file
View File

@ -0,0 +1,99 @@
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Pinctrl / GPIO driver for StarFive JHB100 SoC Peripheral-2 Power OK domain
*
* Copyright (C) 2024 StarFive Technology Co., Ltd.
* Author: Alex Soo <yuklin.soo@starfivetech.com>
*
*/
#include <linux/platform_device.h>
#include "pinctrl-starfive-jhb100.h"
/* per2pok pad numbers */
#define PADNUM_PER2POK_GPIO_D36 5
#define PADNUM_PER2POK_GPIO_D40 9
#define PADNUM_PER2POK_GPIO_D48 17
static const struct jhb100_pin_layout_desc jhb100_per2pok_pl_desc[] = {
{ .pin_start = 0, .pin_cnt = 10, .name = "gpio", .gpio_func_sel = 0 },
{ .pin_start = 10, .pin_cnt = 8, .name = "pwm_channel", .gpio_func_sel = 1 },
{ 0xff },
};
static const struct config_reg_layout_desc jhb100_per2pok_pinctrl_rl_desc[] = {
{
.pin_start = 0,
.pin_cnt = 18,
.fields[PAD_CFG_DRIVE_STRENGTH_2BIT] = { .shift = 0, .width = 2 },
.fields[PAD_CFG_INPUT_ENABLE] = { .shift = 2, .width = 1 },
.fields[PAD_CFG_PULL_DOWN] = { .shift = 3, .width = 1 },
.fields[PAD_CFG_PULL_UP] = { .shift = 4, .width = 1 },
.fields[PAD_CFG_SLEW_RATE] = { .shift = 5, .width = 1 },
.fields[PAD_CFG_SCHMITT_TRIGGER_SELECT] = { .shift = 6, .width = 1 },
.fields[PAD_CFG_DEBOUNCE_WIDTH] = { .shift = 15, .width = 17 },
},
{ 0xff },
};
static const struct starfive_pinctrl_regs jhb100_per2pok_pinctrl_regs = {
.func_sel = { .reg = 0x58, .width_per_pin = 2 },
.config = 0x04,
.output = 0x4c,
.output_en = 0x50,
.gpio_status = 0x54,
.irq_en = 0x60,
.irq_status = 0x64,
.irq_clr = 0x68,
.irq_trigger = 0x6c,
.irq_level = 0x70,
.irq_both_edge = 0x74,
.irq_edge = 0x78,
};
static const struct jhb100_pinctrl_func_maps jhb100_func_maps_per2pok[] = {
{ .func = "can", .val = 1 },
{ .func = "gpio", .val = 0,
.max_pin = JHB100_FUNC_MAPS_MAX_PIN(PADNUM_PER2POK_GPIO_D40) },
{ .func = "gpio", .val = 1,
.max_pin = JHB100_FUNC_MAPS_MAX_PIN(PADNUM_PER2POK_GPIO_D48) },
{ .func = "host0_port80", .val = 2 },
{ .func = "host1_port80", .val = 3 },
{ .func = "passthru", .val = 2,
.max_pin = JHB100_FUNC_MAPS_MAX_PIN(PADNUM_PER2POK_GPIO_D36) },
{ .func = "passthru", .val = 1,
.max_pin = JHB100_FUNC_MAPS_MAX_PIN(PADNUM_PER2POK_GPIO_D40) },
{ .func = "pwm", .val = 0 },
};
static const struct jhb100_pinctrl_domain_info jhb100_per2pok_pinctrl_info = {
.name = "jhb100-per2pok",
.pl_desc = jhb100_per2pok_pl_desc,
.crl_desc = jhb100_per2pok_pinctrl_rl_desc,
.regs = &jhb100_per2pok_pinctrl_regs,
.fmaps = jhb100_func_maps_per2pok,
.num_maps = ARRAY_SIZE(jhb100_func_maps_per2pok),
};
static const struct of_device_id jhb100_per2pok_pinctrl_of_match[] = {
{
.compatible = "starfive,jhb100-per2pok-pinctrl",
.data = &jhb100_per2pok_pinctrl_info,
},
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, jhb100_per2pok_pinctrl_of_match);
static struct platform_driver jhb100_per2pok_pinctrl_driver = {
.probe = jhb100_pinctrl_probe,
.driver = {
.name = "starfive-jhb100-per2pok-pinctrl",
.of_match_table = jhb100_per2pok_pinctrl_of_match,
},
};
module_platform_driver(jhb100_per2pok_pinctrl_driver);
MODULE_DESCRIPTION("Pinctrl driver for StarFive JHB100 SoC Peripheral-2 Power OK domain");
MODULE_AUTHOR("Alex Soo <yuklin.soo@starfivetech.com>");
MODULE_LICENSE("GPL");