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Mon, 19 Oct 2026 00:06:54 +0800 Received: from RTKEXHMBS06.realtek.com.tw (10.21.1.56) by RTKEXHMBS03.realtek.com.tw (10.21.1.53) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.49; Mon, 19 Oct 2026 00:06:54 +0800 Received: from cn1dhc-k02 (172.21.252.101) by RTKEXHMBS06.realtek.com.tw (10.21.1.56) with Microsoft SMTP Server id 15.2.2562.49 via Frontend Transport; Mon, 19 Oct 2026 00:06:54 +0800 From: Yu-Chun Lin To: , , , , , , CC: , , , , , , , , Subject: [PATCH v5 6/8] irqchip/realtek-rtd1319d: Add driver for Realtek RTD1319D and RTD1325 SoCs Date: Mon, 19 Oct 2026 00:06:51 +0800 Message-ID: <20261018160653.3940371-7-eleanor.lin@realtek.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20261018160653.3940371-1-eleanor.lin@realtek.com> References: <20261018160653.3940371-1-eleanor.lin@realtek.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261018_170757_119746_48ACC5DD X-CRM114-Status: GOOD ( 18.71 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: James Tai Add support for interrupt controller driver found on Realtek DHC RTD1319D and RTD1325 SoCs. Signed-off-by: James Tai Signed-off-by: Yu-Chun Lin --- drivers/irqchip/Kconfig | 11 ++ drivers/irqchip/Makefile | 1 + drivers/irqchip/irq-realtek-rtd1319d.c | 197 +++++++++++++++++++++++++ 3 files changed, 209 insertions(+) create mode 100644 drivers/irqchip/irq-realtek-rtd1319d.c diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig index 3c0c04330640..8f4bfd3d5ec1 100644 --- a/drivers/irqchip/Kconfig +++ b/drivers/irqchip/Kconfig @@ -298,6 +298,17 @@ config REALTEK_RTD1319_INTC If unsure, say N. +config REALTEK_RTD1319D_INTC + tristate "Realtek RTD1319D and RTD1325 interrupt controller" + depends on ARCH_REALTEK || COMPILE_TEST + select REALTEK_DHC_INTC + help + Enable support for the Realtek RTD1319D and RTD1325 SoCs Interrupt + Controller. Each Realtek DHC SoC has two sets of interrupt + controllers, each capable of handling up to 32 interrupts. + + If unsure, say N. + config RENESAS_INTC_IRQPIN bool "Renesas INTC External IRQ Pin Support" if COMPILE_TEST select IRQ_DOMAIN diff --git a/drivers/irqchip/Makefile b/drivers/irqchip/Makefile index ba3e6b68c085..32a2e2d8a79c 100644 --- a/drivers/irqchip/Makefile +++ b/drivers/irqchip/Makefile @@ -50,6 +50,7 @@ obj-$(CONFIG_JCORE_AIC) += irq-jcore-aic.o obj-$(CONFIG_RDA_INTC) += irq-rda-intc.o obj-$(CONFIG_REALTEK_DHC_INTC) += irq-realtek-intc-common.o obj-$(CONFIG_REALTEK_RTD1319_INTC) += irq-realtek-rtd1319.o +obj-$(CONFIG_REALTEK_RTD1319D_INTC) += irq-realtek-rtd1319d.o obj-$(CONFIG_RENESAS_INTC_IRQPIN) += irq-renesas-intc-irqpin.o obj-$(CONFIG_RENESAS_IRQC) += irq-renesas-irqc.o obj-$(CONFIG_RENESAS_RZA1_IRQC) += irq-renesas-rza1.o diff --git a/drivers/irqchip/irq-realtek-rtd1319d.c b/drivers/irqchip/irq-realtek-rtd1319d.c new file mode 100644 index 000000000000..4bac12c02cbe --- /dev/null +++ b/drivers/irqchip/irq-realtek-rtd1319d.c @@ -0,0 +1,197 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Realtek RTD1319D and RTD1325 interrupt controller driver + * + * Copyright (c) 2023-2026 Realtek Semiconductor Corporation + */ + +#include +#include +#include +#include +#include "irq-realtek-intc-common.h" + +#define ISO_NMI_WDT_MASK 0x08008090 +#define ISO_NORMAL_MASK 0xf7ff7f6e +#define MISC_NORMAL_MASK 0xffe0ded6 +#define MISC_UART1_MASK 0x00000028 +#define MISC_UART2_MASK 0x00002100 + +#define ISO_ISR_EN_OFFSET 0x40 +#define ISO_ISR_OFFSET 0 +#define MISC_ISR_EN_OFFSET 0x80 +#define MISC_ISR_OFFSET 0xc + +enum rtd1319d_iso_isr_bits { + RTD1319D_ISO_ISR_TC3_SHIFT = 1, + RTD1319D_ISO_ISR_UR0_SHIFT = 2, + RTD1319D_ISO_ISR_LSADC0_SHIFT = 3, + RTD1319D_ISO_ISR_WDOG1_NMI_SHIFT = 4, + RTD1319D_ISO_ISR_IRDA_SHIFT = 5, + RTD1319D_ISO_ISR_SPI1_SHIFT = 6, + RTD1319D_ISO_ISR_WDOG2_NMI_SHIFT = 7, + RTD1319D_ISO_ISR_I2C0_SHIFT = 8, + RTD1319D_ISO_ISR_TC4_SHIFT = 9, + RTD1319D_ISO_ISR_TC7_SHIFT = 10, + RTD1319D_ISO_ISR_I2C1_SHIFT = 11, + RTD1319D_ISO_ISR_HIFI_WAKEUP_SHIFT = 14, + RTD1319D_ISO_ISR_WDOG4_NMI_SHIFT = 15, + RTD1319D_ISO_ISR_TC8_SHIFT = 16, + RTD1319D_ISO_ISR_VFD_SHIFT = 17, + RTD1319D_ISO_ISR_VTC_SHIFT = 18, + RTD1319D_ISO_ISR_GPIOA_SHIFT = 19, + RTD1319D_ISO_ISR_GPIODA_SHIFT = 20, + RTD1319D_ISO_ISR_ISO_MISC_SHIFT = 21, + RTD1319D_ISO_ISR_CBUS_SHIFT = 22, + RTD1319D_ISO_ISR_ETN_SHIFT = 23, + RTD1319D_ISO_ISR_USB_HOST_SHIFT = 24, + RTD1319D_ISO_ISR_USB_U3_DRD_SHIFT = 25, + RTD1319D_ISO_ISR_USB_U2_DRD_SHIFT = 26, + RTD1319D_ISO_ISR_WDOG3_NMI_SHIFT = 27, + RTD1319D_ISO_ISR_PORB_HV_CEN_SHIFT = 28, + RTD1319D_ISO_ISR_PORB_DV_CEN_SHIFT = 29, + RTD1319D_ISO_ISR_PORB_AV_CEN_SHIFT = 30, + RTD1319D_ISO_ISR_I2C1_REQ_SHIFT = 31, +}; + +static const u32 rtd1319d_iso_isr_to_scpu_int_en_mask[32] = { + [RTD1319D_ISO_ISR_SPI1_SHIFT] = BIT(1), + [RTD1319D_ISO_ISR_UR0_SHIFT] = BIT(2), + [RTD1319D_ISO_ISR_LSADC0_SHIFT] = BIT(3), + [RTD1319D_ISO_ISR_IRDA_SHIFT] = BIT(5), + [RTD1319D_ISO_ISR_I2C0_SHIFT] = BIT(8), + [RTD1319D_ISO_ISR_I2C1_SHIFT] = BIT(11), + [RTD1319D_ISO_ISR_VFD_SHIFT] = BIT(17), + [RTD1319D_ISO_ISR_GPIOA_SHIFT] = BIT(19), + [RTD1319D_ISO_ISR_GPIODA_SHIFT] = BIT(20), + [RTD1319D_ISO_ISR_PORB_HV_CEN_SHIFT] = BIT(28), + [RTD1319D_ISO_ISR_PORB_DV_CEN_SHIFT] = BIT(29), + [RTD1319D_ISO_ISR_PORB_AV_CEN_SHIFT] = BIT(30), + [RTD1319D_ISO_ISR_I2C1_REQ_SHIFT] = BIT(31), + [RTD1319D_ISO_ISR_WDOG1_NMI_SHIFT] = IRQ_ALWAYS_ENABLED, + [RTD1319D_ISO_ISR_WDOG2_NMI_SHIFT] = IRQ_ALWAYS_ENABLED, + [RTD1319D_ISO_ISR_WDOG3_NMI_SHIFT] = IRQ_ALWAYS_ENABLED, + [RTD1319D_ISO_ISR_WDOG4_NMI_SHIFT] = IRQ_ALWAYS_ENABLED, +}; + +enum rtd1319d_misc_isr_bits { + RTD1319D_MISC_ISR_UR1_SHIFT = 3, + RTD1319D_MISC_ISR_TC5_SHIFT = 4, + RTD1319D_MISC_ISR_UR1_TO_SHIFT = 5, + RTD1319D_MISC_ISR_TC0_SHIFT = 6, + RTD1319D_MISC_ISR_TC1_SHIFT = 7, + RTD1319D_MISC_ISR_UR2_SHIFT = 8, + RTD1319D_MISC_ISR_UR2_TO_SHIFT = 13, + RTD1319D_MISC_ISR_I2C5_SHIFT = 14, + RTD1319D_MISC_ISR_I2C4_SHIFT = 15, + RTD1319D_MISC_ISR_DRTC_HSEC_SHIFT = 16, + RTD1319D_MISC_ISR_DRTC_MIN_SHIFT = 17, + RTD1319D_MISC_ISR_DRTC_HOUR_SHIFT = 18, + RTD1319D_MISC_ISR_DRTC_DATE_SHIFT = 19, + RTD1319D_MISC_ISR_DRTC_ALARM_SHIFT = 20, + RTD1319D_MISC_ISR_I2C3_SHIFT = 23, + RTD1319D_MISC_ISR_SC0_SHIFT = 24, + RTD1319D_MISC_ISR_SC1_SHIFT = 25, + RTD1319D_MISC_ISR_SPI_SHIFT = 27, + RTD1319D_MISC_ISR_FAN_SHIFT = 29, +}; + +static const u32 rtd1319d_misc_isr_to_scpu_int_en_mask[32] = { + [RTD1319D_MISC_ISR_UR1_SHIFT] = BIT(3), + [RTD1319D_MISC_ISR_UR1_TO_SHIFT] = BIT(5), + [RTD1319D_MISC_ISR_UR2_TO_SHIFT] = BIT(6), + [RTD1319D_MISC_ISR_UR2_SHIFT] = BIT(7), + [RTD1319D_MISC_ISR_I2C5_SHIFT] = BIT(14), + [RTD1319D_MISC_ISR_I2C4_SHIFT] = BIT(15), + [RTD1319D_MISC_ISR_DRTC_HSEC_SHIFT] = BIT(16), + [RTD1319D_MISC_ISR_DRTC_MIN_SHIFT] = BIT(17), + [RTD1319D_MISC_ISR_DRTC_HOUR_SHIFT] = BIT(18), + [RTD1319D_MISC_ISR_DRTC_DATE_SHIFT] = BIT(19), + [RTD1319D_MISC_ISR_DRTC_ALARM_SHIFT] = BIT(20), + [RTD1319D_MISC_ISR_SC0_SHIFT] = BIT(24), + [RTD1319D_MISC_ISR_SC1_SHIFT] = BIT(25), + [RTD1319D_MISC_ISR_SPI_SHIFT] = BIT(27), + [RTD1319D_MISC_ISR_I2C3_SHIFT] = BIT(28), + [RTD1319D_MISC_ISR_FAN_SHIFT] = BIT(29), +}; + +static const struct realtek_intc_mask rtd1319d_intc_iso_cfgs[] = { + { ISO_NORMAL_MASK, }, + { ISO_NMI_WDT_MASK, }, +}; + +static const struct realtek_intc_info rtd1319d_intc_iso_info[] = { + { + .isr_offset = ISO_ISR_OFFSET, + .scpu_int_en_offset = ISO_ISR_EN_OFFSET, + .isr_to_scpu_int_en_mask = rtd1319d_iso_isr_to_scpu_int_en_mask, + .subset_mask = rtd1319d_intc_iso_cfgs, + .subset_num = ARRAY_SIZE(rtd1319d_intc_iso_cfgs), + }, +}; + +static const struct realtek_intc_desc rtd1319d_intc_iso_desc = { + .banks = rtd1319d_intc_iso_info, + .bank_num = ARRAY_SIZE(rtd1319d_intc_iso_info), +}; + +static const struct realtek_intc_mask rtd1319d_intc_misc_cfgs[] = { + { MISC_NORMAL_MASK, }, + { MISC_UART1_MASK, }, + { MISC_UART2_MASK, }, +}; + +static const struct realtek_intc_info rtd1319d_intc_misc_info[] = { + { + .isr_offset = MISC_ISR_OFFSET, + .scpu_int_en_offset = MISC_ISR_EN_OFFSET, + .isr_to_scpu_int_en_mask = rtd1319d_misc_isr_to_scpu_int_en_mask, + .subset_mask = rtd1319d_intc_misc_cfgs, + .subset_num = ARRAY_SIZE(rtd1319d_intc_misc_cfgs), + }, +}; + +static const struct realtek_intc_desc rtd1319d_intc_misc_desc = { + .banks = rtd1319d_intc_misc_info, + .bank_num = ARRAY_SIZE(rtd1319d_intc_misc_info), +}; + +static const struct of_device_id realtek_intc_rtd1319d_dt_matches[] = { + { + .compatible = "realtek,rtd1319d-intc-iso", + .data = &rtd1319d_intc_iso_desc, + }, { + .compatible = "realtek,rtd1319d-intc-misc", + .data = &rtd1319d_intc_misc_desc, + }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, realtek_intc_rtd1319d_dt_matches); + +static DEFINE_NOIRQ_DEV_PM_OPS(realtek_intc_rtd1319d_pm_ops, realtek_intc_suspend, + realtek_intc_resume); + +static int rtd1319d_intc_probe(struct platform_device *pdev) +{ + const struct realtek_intc_desc *desc; + + desc = of_device_get_match_data(&pdev->dev); + if (!desc) + return -EINVAL; + + return realtek_intc_probe(pdev, desc); +} + +static struct platform_driver realtek_intc_rtd1319d_driver = { + .probe = rtd1319d_intc_probe, + .remove = realtek_intc_remove, + .driver = { + .name = "realtek_intc_rtd1319d", + .of_match_table = realtek_intc_rtd1319d_dt_matches, + .pm = pm_sleep_ptr(&realtek_intc_rtd1319d_pm_ops), + }, +}; +module_platform_driver(realtek_intc_rtd1319d_driver); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("Realtek RTD1319D and RTD1325 Interrupt Controller Driver"); -- 2.43.0