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pinctrl: starfive: Add StarFive JHB100 per3 controller driver

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Add pinctrl driver for StarFive JHB100 SoC Peripheral-3(per3) 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 03:03:55 -07:00 committed by Linus Walleij
parent 340588f9b9
commit 1bb38968b9
3 changed files with 141 additions and 0 deletions
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11
drivers/pinctrl/starfive/Kconfig
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@ -100,6 +100,17 @@ config PINCTRL_STARFIVE_JHB100_PER2POK
peripherals supporting inputs, outputs, configuring pull-up/pull-down
and interrupts on input changes.
config PINCTRL_STARFIVE_JHB100_PER3
tristate "StarFive JHB100 SoC Peripheral-3 pinctrl and GPIO driver"
depends on ARCH_STARFIVE || COMPILE_TEST
select PINCTRL_STARFIVE_JHB100
default ARCH_STARFIVE
help
Say yes here to support Peripheral-3 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

@ -11,6 +11,7 @@ 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-$(CONFIG_PINCTRL_STARFIVE_JHB100_PER3) += pinctrl-starfive-jhb100-per3.o
obj-$(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

129
drivers/pinctrl/starfive/pinctrl-starfive-jhb100-per3.c Normal file
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@ -0,0 +1,129 @@
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Pinctrl / GPIO driver for StarFive JHB100 SoC Peripheral-3 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"
/* per3 pad numbers */
#define PADNUM_PER3_GPIO_E0 0
#define PADNUM_PER3_GPIO_E1 1
#define PADNUM_PER3_GPIO_E2 2
#define PADNUM_PER3_GPIO_E3 3
#define PADNUM_PER3_GPIO_E4 4
#define PADNUM_PER3_GPIO_E5 5
#define PADNUM_PER3_GPIO_E6 6
#define PADNUM_PER3_GPIO_E7 7
#define PADNUM_PER3_GPIO_E8 8
#define PADNUM_PER3_GPIO_E9 9
#define PADNUM_PER3_GPIO_E10 10
static const struct jhb100_pin_layout_desc jhb100_per3_pl_desc[] = {
{ .pin_start = 0, .pin_cnt = 11, .name = "gpio", .gpio_func_sel = 0 },
{ 0xff },
};
static const struct config_reg_layout_desc jhb100_per3_pinctrl_rl_desc[] = {
{
.pin_start = 0,
.pin_cnt = 2,
.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 },
},
{
.pin_start = 2,
.pin_cnt = 9,
.fields[PAD_CFG_INPUT_ENABLE] = { .shift = 0, .width = 1 },
.fields[PAD_CFG_SLEW_RATE] = { .shift = 1, .width = 1 },
.fields[PAD_CFG_VSEL] = { .shift = 2, .width = 2 },
.fields[PAD_CFG_DEBOUNCE_WIDTH] = { .shift = 15, .width = 17 },
},
{ 0xff },
};
static const struct pinvref_desc pinvref_desc_per3[] = {
{
/* gpios */
.pin_grp = {
PADNUM_PER3_GPIO_E0,
PADNUM_PER3_GPIO_E1,
PADNUM_PER3_GPIO_E2,
PADNUM_PER3_GPIO_E3,
PADNUM_PER3_GPIO_E4,
PADNUM_PER3_GPIO_E5,
PADNUM_PER3_GPIO_E6,
PADNUM_PER3_GPIO_E7,
PADNUM_PER3_GPIO_E8,
PADNUM_PER3_GPIO_E9,
PADNUM_PER3_GPIO_E10
},
.num_pins = 11,
.range = BIT(JHB100_PINVREF_1_8V) | BIT(JHB100_PINVREF_2_5V) |
BIT(JHB100_PINVREF_3_3V)
},
};
static const struct starfive_pinctrl_regs jhb100_per3_pinctrl_regs = {
.vref = { .reg = 0x00, .pv_desc = pinvref_desc_per3,
.num_pv = ARRAY_SIZE(pinvref_desc_per3) },
.func_sel = { .reg = 0x3c, .width_per_pin = 2 },
.config = 0x04,
.output = 0x30,
.output_en = 0x34,
.gpio_status = 0x38,
.irq_en = 0x40,
.irq_status = 0x44,
.irq_clr = 0x48,
.irq_trigger = 0x4c,
.irq_level = 0x50,
.irq_both_edge = 0x54,
.irq_edge = 0x58,
};
static const struct jhb100_pinctrl_func_maps jhb100_func_maps_per3[] = {
{ .func = "gmac_mdio", .val = 1 },
{ .func = "gmac_rmii", .val = 1 },
{ .func = "gpio", .val = 0 },
};
static const struct jhb100_pinctrl_domain_info jhb100_per3_pinctrl_info = {
.name = "jhb100-per3",
.pl_desc = jhb100_per3_pl_desc,
.crl_desc = jhb100_per3_pinctrl_rl_desc,
.regs = &jhb100_per3_pinctrl_regs,
.fmaps = jhb100_func_maps_per3,
.num_maps = ARRAY_SIZE(jhb100_func_maps_per3),
};
static const struct of_device_id jhb100_per3_pinctrl_of_match[] = {
{
.compatible = "starfive,jhb100-per3-pinctrl",
.data = &jhb100_per3_pinctrl_info,
},
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, jhb100_per3_pinctrl_of_match);
static struct platform_driver jhb100_per3_pinctrl_driver = {
.probe = jhb100_pinctrl_probe,
.driver = {
.name = "starfive-jhb100-per3-pinctrl",
.of_match_table = jhb100_per3_pinctrl_of_match,
},
};
module_platform_driver(jhb100_per3_pinctrl_driver);
MODULE_DESCRIPTION("Pinctrl driver for StarFive JHB100 SoC Peripheral-3 domain");
MODULE_AUTHOR("Alex Soo <yuklin.soo@starfivetech.com>");
MODULE_LICENSE("GPL");