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Sat, 29 Aug 2026 02:57:50 +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 v6 12/21] pinctrl: starfive: Add StarFive JHB100 per0 controller driver Date: Fri, 28 Aug 2026 19:57:11 -0700 Message-Id: <20260829025720.23915-13-changhuang.liang@starfivetech.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20260829025720.23915-1-changhuang.liang@starfivetech.com> References: <20260829025720.23915-1-changhuang.liang@starfivetech.com> Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: NT0PR01CA0020.CHNPR01.prod.partner.outlook.cn (10.2.8.16) To ZQ4PR01MB1202.CHNPR01.prod.partner.outlook.cn (10.2.3.102) 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_|ZQ4PR01MB1153:EE_ X-MS-Office365-Filtering-Correlation-Id: f8e8565e-552f-4335-9334-08df05794fea X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|1800799024|23010399003|7416014|376014|52116014|3023799007|18002099003|22082099003|56012099006|5023799004|6133799003|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-per0.c | 152 ++++++++++++++++++ 3 files changed, 164 insertions(+) create mode 100644 drivers/pinctrl/starfive/pinctrl-starfive-jhb100-per0.c diff --git a/drivers/pinctrl/starfive/Kconfig b/drivers/pinctrl/starfive/Kconfig index bb298419ab60..ddd39807e222 100644 --- a/drivers/pinctrl/starfive/Kconfig +++ b/drivers/pinctrl/starfive/Kconfig @@ -57,6 +57,17 @@ config PINCTRL_STARFIVE_JHB100 select GPIO_GENERIC select OF_GPIO +config PINCTRL_STARFIVE_JHB100_PER0 + tristate "StarFive JHB100 SoC Peripheral-0 pinctrl and GPIO driver" + depends on ARCH_STARFIVE || COMPILE_TEST + select PINCTRL_STARFIVE_JHB100 + default ARCH_STARFIVE + help + Say yes here to support Peripheral-0 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 b817ad93b91d..f2bb0c35a2a0 100644 --- a/drivers/pinctrl/starfive/Makefile +++ b/drivers/pinctrl/starfive/Makefile @@ -7,6 +7,7 @@ obj-$(CONFIG_PINCTRL_STARFIVE_JH7110_SYS) += pinctrl-starfive-jh7110-sys.o obj-$(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-$(CONFIG_PINCTRL_STARFIVE_JHB100_SYS0) += pinctrl-starfive-jhb100-sys0.o obj-$(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-per0.c b/drivers/pinctrl/starfive/pinctrl-starfive-jhb100-per0.c new file mode 100644 index 000000000000..a3ec991c6187 --- /dev/null +++ b/drivers/pinctrl/starfive/pinctrl-starfive-jhb100-per0.c @@ -0,0 +1,152 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Pinctrl / GPIO driver for StarFive JHB100 SoC Peripheral-0 domain + * + * Copyright (C) 2024 StarFive Technology Co., Ltd. + * Author: Alex Soo + * + */ + +#include +#include + +#include "pinctrl-starfive-jhb100.h" + +static const struct jhb100_pin_layout_desc jhb100_per0_pl_desc[] = { + { .pin_start = 0, .pin_cnt = 60, .name = "gpio", .gpio_func_sel = 0 }, + { 0xff }, +}; + +static const struct config_reg_layout_desc jhb100_per0_pinctrl_rl_desc[] = { + { + .pin_start = 0, + .pin_cnt = 60, + .fields[PAD_CFG_INPUT_ENABLE] = { .shift = 0, .width = 1 }, + .fields[PAD_CFG_MODE_SELECT] = { .shift = 1, .width = 2 }, + .fields[PAD_CFG_PULL_DOWN] = { .shift = 3, .width = 1 }, + .fields[PAD_CFG_PULL_UP] = { .shift = 4, .width = 1 }, + .fields[PAD_CFG_OPEN_DRAIN_PULL_UP_SEL] = { .shift = 5, .width = 2 }, + .fields[PAD_CFG_SCHMITT_TRIGGER_SELECT] = { .shift = 7, .width = 1 }, + .fields[PAD_CFG_DEBOUNCE_WIDTH] = { .shift = 15, .width = 17 }, + }, + { 0xff }, +}; + +static const struct pinvref_desc pinvref_desc_per0[] = { + { + /* gpioe-i3c0 */ + .pin_grp = { + PADNUM_PER0_GPIO_B8, + PADNUM_PER0_GPIO_B9, + PADNUM_PER0_GPIO_B10, + PADNUM_PER0_GPIO_B11, + PADNUM_PER0_GPIO_B32, + PADNUM_PER0_GPIO_B33 + }, + .num_pins = 6, + .range = BIT(JHB100_PINVREF_1_8V) | BIT(JHB100_PINVREF_3_3V) + }, + { + /* gpioe-i3c1 */ + .pin_grp = { + PADNUM_PER0_GPIO_B12, + PADNUM_PER0_GPIO_B13, + PADNUM_PER0_GPIO_B14, + PADNUM_PER0_GPIO_B15, + PADNUM_PER0_GPIO_B34, + PADNUM_PER0_GPIO_B35 + }, + .num_pins = 6, + .range = BIT(JHB100_PINVREF_1_8V) | BIT(JHB100_PINVREF_3_3V) + }, + { + /* gpioe-i3c2 */ + .pin_grp = { + PADNUM_PER0_GPIO_B16, + PADNUM_PER0_GPIO_B17, + PADNUM_PER0_GPIO_B18, + PADNUM_PER0_GPIO_B19, + PADNUM_PER0_GPIO_B20, + PADNUM_PER0_GPIO_B21, + PADNUM_PER0_GPIO_B22, + PADNUM_PER0_GPIO_B23 + }, + .num_pins = 8, + .range = BIT(JHB100_PINVREF_1_8V) | BIT(JHB100_PINVREF_3_3V) + }, + { + /* gpioe-i3c4 */ + .pin_grp = { + PADNUM_PER0_GPIO_B36, + PADNUM_PER0_GPIO_B37, + PADNUM_PER0_GPIO_B38, + PADNUM_PER0_GPIO_B39, + PADNUM_PER0_GPIO_B40, + PADNUM_PER0_GPIO_B41, + PADNUM_PER0_GPIO_B42, + PADNUM_PER0_GPIO_B43 + }, + .num_pins = 8, + .range = BIT(JHB100_PINVREF_1_8V) | BIT(JHB100_PINVREF_3_3V) + }, +}; + +static const struct starfive_pinctrl_regs jhb100_per0_pinctrl_regs = { + .vref = { .reg = 0x004, .pv_desc = pinvref_desc_per0, + .num_pv = ARRAY_SIZE(pinvref_desc_per0) }, + .func_sel = { .reg = 0x11c, .width_per_pin = 2 }, + .config = 0x014, + .output = 0x104, + .output_en = 0x10c, + .gpio_status = 0x114, + .irq_en = 0x12c, + .irq_status = 0x134, + .irq_clr = 0x13c, + .irq_trigger = 0x144, + .irq_level = 0x14c, + .irq_both_edge = 0x154, + .irq_edge = 0x15c, +}; + +static const struct jhb100_pinctrl_func_maps jhb100_func_maps_per0[] = { + { .func = "gmac_mdio", .val = 2 }, + { .func = "gpio", .val = 0 }, + { .func = "i2c", .val = 1 }, + { .func = "i3c", .val = 2, + .max_pin = JHB100_FUNC_MAPS_MAX_PIN(PADNUM_PER0_GPIO_B23) }, + { .func = "i3c", .val = 1, + .max_pin = JHB100_FUNC_MAPS_MAX_PIN(PADNUM_PER0_GPIO_B59) }, + { .func = "smbalert", .val = 1 }, + { .func = "wdt", .val = 2 }, +}; + +static const struct jhb100_pinctrl_domain_info jhb100_per0_pinctrl_info = { + .name = "jhb100-per0", + .pl_desc = jhb100_per0_pl_desc, + .crl_desc = jhb100_per0_pinctrl_rl_desc, + .regs = &jhb100_per0_pinctrl_regs, + .fmaps = jhb100_func_maps_per0, + .num_maps = ARRAY_SIZE(jhb100_func_maps_per0), +}; + +static const struct of_device_id jhb100_per0_pinctrl_of_match[] = { + { + .compatible = "starfive,jhb100-per0-pinctrl", + .data = &jhb100_per0_pinctrl_info, + }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, jhb100_per0_pinctrl_of_match); + +static struct platform_driver jhb100_per0_pinctrl_driver = { + .probe = jhb100_pinctrl_probe, + .driver = { + .name = "starfive-jhb100-per0-pinctrl", + .of_match_table = jhb100_per0_pinctrl_of_match, + }, +}; +module_platform_driver(jhb100_per0_pinctrl_driver); + +MODULE_DESCRIPTION("Pinctrl driver for StarFive JHB100 SoC Peripheral-0 domain"); +MODULE_AUTHOR("Alex Soo "); +MODULE_LICENSE("GPL"); -- 2.25.1