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Sat, 1 Aug 2026 07:27:41 +0000 From: Changhuang Liang To: Linus Walleij , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Emil Renner Berthing , Paul Walmsley , Albert Ou , Palmer Dabbelt , Alexandre Ghiti , Philipp Zabel , Bartosz Golaszewski Cc: linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, Lianfeng Ouyang , Changhuang Liang Subject: [PATCH v4 16/21] pinctrl: starfive: Add StarFive JHB100 per2 controller driver Date: Sat, 1 Aug 2026 00:27:06 -0700 Message-Id: <20260801072711.153217-17-changhuang.liang@starfivetech.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20260801072711.153217-1-changhuang.liang@starfivetech.com> References: <20260801072711.153217-1-changhuang.liang@starfivetech.com> Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: NT0PR01CA0027.CHNPR01.prod.partner.outlook.cn (2406:e500:c510:c::20) To ZQ4PR01MB1202.CHNPR01.prod.partner.outlook.cn (2406:e500:c550:17::6) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: ZQ4PR01MB1202:EE_|ZQ4PR01MB1138:EE_ X-MS-Office365-Filtering-Correlation-Id: 53e9d940-141c-4237-27e2-08deef9e5f4a X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0;ARA:13230040|7416014|52116014|376014|366016|23010399003|1800799024|6133799003|5023799004|56012099006|3023799007|18002099003|22082099003|10067099003|921020|38350700014; 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Co-developed-by: Lianfeng Ouyang Signed-off-by: Lianfeng Ouyang Signed-off-by: Alex Soo Signed-off-by: Changhuang Liang --- drivers/pinctrl/starfive/Kconfig | 11 ++ drivers/pinctrl/starfive/Makefile | 1 + .../starfive/pinctrl-starfive-jhb100-per2.c | 124 ++++++++++++++++++ 3 files changed, 136 insertions(+) create mode 100644 drivers/pinctrl/starfive/pinctrl-starfive-jhb100-per2.c diff --git a/drivers/pinctrl/starfive/Kconfig b/drivers/pinctrl/starfive/Kconfig index 0fe2d21ba402..ad04a7331a86 100644 --- a/drivers/pinctrl/starfive/Kconfig +++ b/drivers/pinctrl/starfive/Kconfig @@ -79,6 +79,17 @@ config PINCTRL_STARFIVE_JHB100_PER1 peripherals supporting inputs, outputs, configuring pull-up/pull-down and interrupts on input changes. +config PINCTRL_STARFIVE_JHB100_PER2 + tristate "StarFive JHB100 SoC Peripheral-2 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 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 diff --git a/drivers/pinctrl/starfive/Makefile b/drivers/pinctrl/starfive/Makefile index 6beef7e313ef..33213bd1919f 100644 --- a/drivers/pinctrl/starfive/Makefile +++ b/drivers/pinctrl/starfive/Makefile @@ -9,6 +9,7 @@ obj-$(CONFIG_PINCTRL_STARFIVE_JH7110_AON) += pinctrl-starfive-jh7110-aon.o obj-$(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_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 diff --git a/drivers/pinctrl/starfive/pinctrl-starfive-jhb100-per2.c b/drivers/pinctrl/starfive/pinctrl-starfive-jhb100-per2.c new file mode 100644 index 000000000000..207225bd0c5b --- /dev/null +++ b/drivers/pinctrl/starfive/pinctrl-starfive-jhb100-per2.c @@ -0,0 +1,124 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Pinctrl / GPIO driver for StarFive JHB100 SoC Peripheral-2 domain + * + * Copyright (C) 2024 StarFive Technology Co., Ltd. + * Author: Alex Soo + * + */ + +#include +#include +#include + +#include "pinctrl-starfive-jhb100.h" + +static const struct jhb100_pin_layout_desc jhb100_per2_pl_desc[] = { + { .pin_start = 0, .pin_cnt = 15, .name = "gpio", .gpio_func_sel = 0 }, + { .pin_start = 15, .pin_cnt = 1, .name = "gpio", .gpio_func_sel = -1 }, + { .pin_start = 16, .pin_cnt = 15, .name = "gpio", .gpio_func_sel = 0 }, + { 0xff }, +}; + +static const struct config_reg_layout_desc jhb100_per2_pinctrl_rl_desc[] = { + { + .pin_start = 0, + .pin_cnt = 19, + .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 = 19, + .pin_cnt = 12, + .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_per2[] = { + { + /* gpionw */ + .pin_grp = { + PADNUM_PER2_GPIO_D19, + PADNUM_PER2_GPIO_D20, + PADNUM_PER2_GPIO_D21, + PADNUM_PER2_GPIO_D22, + PADNUM_PER2_GPIO_D23, + PADNUM_PER2_GPIO_D24, + PADNUM_PER2_GPIO_D25, + PADNUM_PER2_GPIO_D26, + PADNUM_PER2_GPIO_D27, + PADNUM_PER2_GPIO_D28, + PADNUM_PER2_GPIO_D29, + PADNUM_PER2_GPIO_D30 + }, + .num_pins = 12, + .range = BIT(JHB100_PINVREF_1_8V) | BIT(JHB100_PINVREF_2_5V) | + BIT(JHB100_PINVREF_3_3V) + }, +}; + +static const struct starfive_pinctrl_regs jhb100_per2_pinctrl_regs = { + .vref = { .reg = 0x00, .pv_desc = pinvref_desc_per2, + .num_pv = ARRAY_SIZE(pinvref_desc_per2) }, + .func_sel = { .reg = 0x8c, .width_per_pin = 2 }, + .config = 0x04, + .output = 0x80, + .output_en = 0x84, + .gpio_status = 0x88, + .irq_en = 0x94, + .irq_status = 0x98, + .irq_clr = 0x9c, + .irq_trigger = 0xa0, + .irq_level = 0xa4, + .irq_both_edge = 0xa8, + .irq_edge = 0xac, +}; + +static const struct jhb100_pinctrl_func_maps jhb100_func_maps_per2[] = { + { .func = "fan_tach", .val = 1 }, + { .func = "gmac_rgmii", .val = 1 }, + { .func = "gmac_rmii", .val = 2 }, + { .func = "gpio", .val = 0 }, + { .func = "host0_port80", .val = 2 }, + { .func = "host1_port80", .val = 3 }, +}; + +static const struct jhb100_pinctrl_domain_info jhb100_per2_pinctrl_info = { + .name = "jhb100-per2", + .pl_desc = jhb100_per2_pl_desc, + .crl_desc = jhb100_per2_pinctrl_rl_desc, + .regs = &jhb100_per2_pinctrl_regs, + .fmaps = jhb100_func_maps_per2, + .num_maps = ARRAY_SIZE(jhb100_func_maps_per2), +}; + +static const struct of_device_id jhb100_per2_pinctrl_of_match[] = { + { + .compatible = "starfive,jhb100-per2-pinctrl", + .data = &jhb100_per2_pinctrl_info, + }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, jhb100_per2_pinctrl_of_match); + +static struct platform_driver jhb100_per2_pinctrl_driver = { + .probe = jhb100_pinctrl_probe, + .driver = { + .name = "starfive-jhb100-per2-pinctrl", + .of_match_table = jhb100_per2_pinctrl_of_match, + }, +}; +module_platform_driver(jhb100_per2_pinctrl_driver); + +MODULE_DESCRIPTION("Pinctrl driver for StarFive JHB100 SoC Peripheral-2 domain"); +MODULE_AUTHOR("Alex Soo "); +MODULE_LICENSE("GPL"); -- 2.25.1