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charset="utf-8" The StarFive JH8100 SoC was discontinued before production. The newly taped-out JHB100 SoC uses the same interrupt controller IP. Rename the binding file, compatible string, and MAINTAINERS entry from "jh8100" to "jhb100". In JHB100 SoC, The clocks and resets are not operated by users, but they exist in the hardware. Mark them as optional. Signed-off-by: Changhuang Liang Acked-by: Conor Dooley --- ...00-intc.yaml =3D> starfive,jhb100-intc.yaml} | 20 ++++--------------- MAINTAINERS | 2 +- 2 files changed, 5 insertions(+), 17 deletions(-) rename Documentation/devicetree/bindings/interrupt-controller/{starfive,jh= 8100-intc.yaml =3D> starfive,jhb100-intc.yaml} (68%) diff --git a/Documentation/devicetree/bindings/interrupt-controller/starfiv= e,jh8100-intc.yaml b/Documentation/devicetree/bindings/interrupt-controller= /starfive,jhb100-intc.yaml similarity index 68% rename from Documentation/devicetree/bindings/interrupt-controller/starfive= ,jh8100-intc.yaml rename to Documentation/devicetree/bindings/interrupt-controller/starfive,j= hb100-intc.yaml index ada5788602d6..d8a0a3862ae2 100644 --- a/Documentation/devicetree/bindings/interrupt-controller/starfive,jh810= 0-intc.yaml +++ b/Documentation/devicetree/bindings/interrupt-controller/starfive,jhb10= 0-intc.yaml @@ -1,13 +1,13 @@ # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause %YAML 1.2 --- -$id: http://devicetree.org/schemas/interrupt-controller/starfive,jh8100-in= tc.yaml# +$id: http://devicetree.org/schemas/interrupt-controller/starfive,jhb100-in= tc.yaml# $schema: http://devicetree.org/meta-schemas/core.yaml# =20 title: StarFive External Interrupt Controller =20 description: - StarFive SoC JH8100 contain a external interrupt controller. It can be u= sed + StarFive SoC JHB100 contain a external interrupt controller. It can be u= sed to handle high-level input interrupt signals. It also send the output interrupt signal to RISC-V PLIC. =20 @@ -16,19 +16,11 @@ maintainers: =20 properties: compatible: - const: starfive,jh8100-intc + const: starfive,jhb100-intc =20 reg: maxItems: 1 =20 - clocks: - description: APB clock for the interrupt controller - maxItems: 1 - - resets: - description: APB reset for the interrupt controller - maxItems: 1 - interrupts: maxItems: 1 =20 @@ -40,8 +32,6 @@ properties: required: - compatible - reg - - clocks - - resets - interrupts - interrupt-controller - "#interrupt-cells" @@ -51,10 +41,8 @@ additionalProperties: false examples: - | interrupt-controller@12260000 { - compatible =3D "starfive,jh8100-intc"; + compatible =3D "starfive,jhb100-intc"; reg =3D <0x12260000 0x10000>; - clocks =3D <&syscrg_ne 76>; - resets =3D <&syscrg_ne 13>; interrupts =3D <45>; interrupt-controller; #interrupt-cells =3D <1>; diff --git a/MAINTAINERS b/MAINTAINERS index d238590a31f2..a2961727e3d1 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -25312,7 +25312,7 @@ F: drivers/phy/starfive/phy-jh7110-usb.c STARFIVE JH8100 EXTERNAL INTERRUPT CONTROLLER DRIVER M: Changhuang Liang S: Supported -F: Documentation/devicetree/bindings/interrupt-controller/starfive,jh8100-= intc.yaml +F: Documentation/devicetree/bindings/interrupt-controller/starfive,jhb100-= intc.yaml F: drivers/irqchip/irq-starfive-jh8100-intc.c =20 STATIC BRANCH/CALL --=20 2.25.1 From nobody Mon Jun 15 12:18:11 2026 Received: from CHN02-BJS-obe.outbound.protection.partner.outlook.cn (mail-bjschn02on2138.outbound.protection.partner.outlook.cn [139.219.17.138]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 705E237CD46; 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charset="utf-8" The StarFive JH8100 SoC was discontinued before production. The newly taped-out JHB100 SoC uses the same interrupt controller IP. Rename the driver file, Kconfig symbol, and internal references from "jh8100" to "jhb100" to accurately reflect the supported hardware. Signed-off-by: Changhuang Liang --- MAINTAINERS | 4 ++-- drivers/irqchip/Kconfig | 6 +++--- drivers/irqchip/Makefile | 2 +- ...arfive-jh8100-intc.c =3D> irq-starfive-jhb100-intc.c} | 10 +++++----- 4 files changed, 11 insertions(+), 11 deletions(-) rename drivers/irqchip/{irq-starfive-jh8100-intc.c =3D> irq-starfive-jhb10= 0-intc.c} (94%) diff --git a/MAINTAINERS b/MAINTAINERS index a2961727e3d1..93cbe852ac0b 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -25309,11 +25309,11 @@ F: Documentation/devicetree/bindings/phy/starfive= ,jh7110-usb-phy.yaml F: drivers/phy/starfive/phy-jh7110-pcie.c F: drivers/phy/starfive/phy-jh7110-usb.c =20 -STARFIVE JH8100 EXTERNAL INTERRUPT CONTROLLER DRIVER +STARFIVE JHB100 EXTERNAL INTERRUPT CONTROLLER DRIVER M: Changhuang Liang S: Supported F: Documentation/devicetree/bindings/interrupt-controller/starfive,jhb100-= intc.yaml -F: drivers/irqchip/irq-starfive-jh8100-intc.c +F: drivers/irqchip/irq-starfive-jhb100-intc.c =20 STATIC BRANCH/CALL M: Peter Zijlstra diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig index f07b00d7fef9..697c6b2e006c 100644 --- a/drivers/irqchip/Kconfig +++ b/drivers/irqchip/Kconfig @@ -651,13 +651,13 @@ config SIFIVE_PLIC select IRQ_DOMAIN_HIERARCHY select GENERIC_IRQ_EFFECTIVE_AFF_MASK if SMP =20 -config STARFIVE_JH8100_INTC - bool "StarFive JH8100 External Interrupt Controller" +config STARFIVE_JHB100_INTC + bool "StarFive JHB100 External Interrupt Controller" depends on ARCH_STARFIVE || COMPILE_TEST default ARCH_STARFIVE select IRQ_DOMAIN_HIERARCHY help - This enables support for the INTC chip found in StarFive JH8100 + This enables support for the INTC chip found in StarFive JHB100 SoC. =20 If you don't know what to do here, say Y. diff --git a/drivers/irqchip/Makefile b/drivers/irqchip/Makefile index 26aa3b6ec99f..c686caaa4451 100644 --- a/drivers/irqchip/Makefile +++ b/drivers/irqchip/Makefile @@ -108,7 +108,7 @@ obj-$(CONFIG_RISCV_APLIC_MSI) +=3D irq-riscv-aplic-msi= .o obj-$(CONFIG_RISCV_IMSIC) +=3D irq-riscv-imsic-state.o irq-riscv-imsic-ea= rly.o irq-riscv-imsic-platform.o obj-$(CONFIG_RISCV_RPMI_SYSMSI) +=3D irq-riscv-rpmi-sysmsi.o obj-$(CONFIG_SIFIVE_PLIC) +=3D irq-sifive-plic.o -obj-$(CONFIG_STARFIVE_JH8100_INTC) +=3D irq-starfive-jh8100-intc.o +obj-$(CONFIG_STARFIVE_JHB100_INTC) +=3D irq-starfive-jhb100-intc.o obj-$(CONFIG_ACLINT_SSWI) +=3D irq-aclint-sswi.o obj-$(CONFIG_IMX_IRQSTEER) +=3D irq-imx-irqsteer.o obj-$(CONFIG_IMX_INTMUX) +=3D irq-imx-intmux.o diff --git a/drivers/irqchip/irq-starfive-jh8100-intc.c b/drivers/irqchip/i= rq-starfive-jhb100-intc.c similarity index 94% rename from drivers/irqchip/irq-starfive-jh8100-intc.c rename to drivers/irqchip/irq-starfive-jhb100-intc.c index bb62ef363d0b..2c9cdad7f377 100644 --- a/drivers/irqchip/irq-starfive-jh8100-intc.c +++ b/drivers/irqchip/irq-starfive-jhb100-intc.c @@ -1,13 +1,13 @@ // SPDX-License-Identifier: GPL-2.0 /* - * StarFive JH8100 External Interrupt Controller driver + * StarFive JHB100 External Interrupt Controller driver * * Copyright (C) 2023 StarFive Technology Co., Ltd. * * Author: Changhuang Liang */ =20 -#define pr_fmt(fmt) "irq-starfive-jh8100: " fmt +#define pr_fmt(fmt) "irq-starfive-jhb100: " fmt =20 #include #include @@ -71,7 +71,7 @@ static void starfive_intc_mask(struct irq_data *d) } =20 static struct irq_chip intc_dev =3D { - .name =3D "StarFive JH8100 INTC", + .name =3D "StarFive JHB100 INTC", .irq_unmask =3D starfive_intc_unmask, .irq_mask =3D starfive_intc_mask, }; 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charset="utf-8" Use devm_ interfaces to simplify resource release. Make clock and reset get optional as they are not used on the JHB100 SoC. Replace pr_ logging with dev_* logging. Use __free(kfree) cleanup attribute to auto-free irqc on error paths Signed-off-by: Changhuang Liang --- drivers/irqchip/irq-starfive-jhb100-intc.c | 77 ++++++---------------- 1 file changed, 20 insertions(+), 57 deletions(-) diff --git a/drivers/irqchip/irq-starfive-jhb100-intc.c b/drivers/irqchip/i= rq-starfive-jhb100-intc.c index 2c9cdad7f377..c33229b39a40 100644 --- a/drivers/irqchip/irq-starfive-jhb100-intc.c +++ b/drivers/irqchip/irq-starfive-jhb100-intc.c @@ -7,16 +7,15 @@ * Author: Changhuang Liang */ =20 -#define pr_fmt(fmt) "irq-starfive-jhb100: " fmt - #include +#include #include #include #include #include #include -#include #include +#include #include #include =20 @@ -117,85 +116,49 @@ static void starfive_intc_irq_handler(struct irq_desc= *desc) static int starfive_intc_probe(struct platform_device *pdev, struct device= _node *parent) { struct device_node *intc =3D pdev->dev.of_node; - struct starfive_irq_chip *irqc; struct reset_control *rst; struct clk *clk; int parent_irq; - int ret; =20 - irqc =3D kzalloc_obj(*irqc); + struct starfive_irq_chip *irqc __free(kfree) =3D kzalloc_obj(*irqc); if (!irqc) return -ENOMEM; =20 - irqc->base =3D of_iomap(intc, 0); - if (!irqc->base) { - pr_err("Unable to map registers\n"); - ret =3D -ENXIO; - goto err_free; - } + irqc->base =3D devm_platform_ioremap_resource(pdev, 0); + if (!irqc->base) + return dev_err_probe(&pdev->dev, -ENXIO, "unable to map registers\n"); =20 - rst =3D of_reset_control_get_exclusive(intc, NULL); - if (IS_ERR(rst)) { - pr_err("Unable to get reset control %pe\n", rst); - ret =3D PTR_ERR(rst); - goto err_unmap; - } + rst =3D devm_reset_control_get_optional_exclusive_deasserted(&pdev->dev, = NULL); + if (IS_ERR(rst)) + return dev_err_probe(&pdev->dev, PTR_ERR(rst), + "Unable to get and deassert reset control\n"); =20 - clk =3D of_clk_get(intc, 0); - if (IS_ERR(clk)) { - pr_err("Unable to get clock %pe\n", clk); - ret =3D PTR_ERR(clk); - goto err_reset_put; - } + clk =3D devm_clk_get_optional_enabled(&pdev->dev, NULL); + if (IS_ERR(clk)) + return dev_err_probe(&pdev->dev, PTR_ERR(clk), "Unable to get and enable= clock\n"); =20 - ret =3D reset_control_deassert(rst); - if (ret) - goto err_clk_put; - - ret =3D clk_prepare_enable(clk); - if (ret) - goto err_reset_assert; =20 raw_spin_lock_init(&irqc->lock); =20 irqc->domain =3D irq_domain_create_linear(of_fwnode_handle(intc), STARFIV= E_INTC_SRC_IRQ_NUM, &starfive_intc_domain_ops, irqc); - if (!irqc->domain) { - pr_err("Unable to create IRQ domain\n"); - ret =3D -EINVAL; - goto err_clk_disable; - } + if (!irqc->domain) + return dev_err_probe(&pdev->dev, -EINVAL, "Unable to create IRQ domain\n= "); =20 parent_irq =3D of_irq_get(intc, 0); if (parent_irq < 0) { - pr_err("Failed to get main IRQ: %d\n", parent_irq); - ret =3D parent_irq; - goto err_remove_domain; + irq_domain_remove(irqc->domain); + return dev_err_probe(&pdev->dev, parent_irq, "Failed to get main IRQ\n"); } =20 irq_set_chained_handler_and_data(parent_irq, starfive_intc_irq_handler, irqc); =20 - pr_info("Interrupt controller register, nr_irqs %d\n", - STARFIVE_INTC_SRC_IRQ_NUM); 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charset="utf-8" From: Mason Huo StarFive JHB100 SoC interrupt controller actually supports 64 interrupt sources, the original code only supported up to 32. now it is extended to 64. Also use guard(raw_spinlock) to automatically release spinlocks. Signed-off-by: Mason Huo Signed-off-by: Changhuang Liang --- drivers/irqchip/irq-starfive-jhb100-intc.c | 47 +++++++++++++--------- 1 file changed, 29 insertions(+), 18 deletions(-) diff --git a/drivers/irqchip/irq-starfive-jhb100-intc.c b/drivers/irqchip/i= rq-starfive-jhb100-intc.c index c33229b39a40..b3d86bd926ed 100644 --- a/drivers/irqchip/irq-starfive-jhb100-intc.c +++ b/drivers/irqchip/irq-starfive-jhb100-intc.c @@ -19,10 +19,11 @@ #include #include =20 -#define STARFIVE_INTC_SRC0_CLEAR 0x10 -#define STARFIVE_INTC_SRC0_MASK 0x14 -#define STARFIVE_INTC_SRC0_INT 0x1c +#define STARFIVE_INTC_SRC_CLEAR(n) (0x10 + ((n) * 0x20)) +#define STARFIVE_INTC_SRC_MASK(n) (0x14 + ((n) * 0x20)) +#define STARFIVE_INTC_SRC_INT(n) (0x1c + ((n) * 0x20)) =20 +#define STARFIVE_INTC_NUM 2 #define STARFIVE_INTC_SRC_IRQ_NUM 32 =20 struct starfive_irq_chip { @@ -54,19 +55,25 @@ static void starfive_intc_bit_clear(struct starfive_irq= _chip *irqc, static void starfive_intc_unmask(struct irq_data *d) { struct starfive_irq_chip *irqc =3D irq_data_get_irq_chip_data(d); + int i, bitpos; =20 - raw_spin_lock(&irqc->lock); - starfive_intc_bit_clear(irqc, STARFIVE_INTC_SRC0_MASK, BIT(d->hwirq)); - raw_spin_unlock(&irqc->lock); + i =3D d->hwirq / STARFIVE_INTC_SRC_IRQ_NUM; + bitpos =3D d->hwirq % STARFIVE_INTC_SRC_IRQ_NUM; + + guard(raw_spinlock)(&irqc->lock); + starfive_intc_bit_clear(irqc, STARFIVE_INTC_SRC_MASK(i), BIT(bitpos)); } =20 static void starfive_intc_mask(struct irq_data *d) { struct starfive_irq_chip *irqc =3D irq_data_get_irq_chip_data(d); + int i, bitpos; + + i =3D d->hwirq / STARFIVE_INTC_SRC_IRQ_NUM; + bitpos =3D d->hwirq % STARFIVE_INTC_SRC_IRQ_NUM; =20 - raw_spin_lock(&irqc->lock); - starfive_intc_bit_set(irqc, STARFIVE_INTC_SRC0_MASK, BIT(d->hwirq)); - raw_spin_unlock(&irqc->lock); + guard(raw_spinlock)(&irqc->lock); + starfive_intc_bit_set(irqc, STARFIVE_INTC_SRC_MASK(i), BIT(bitpos)); } =20 static struct irq_chip intc_dev =3D { @@ -98,16 +105,19 @@ static void starfive_intc_irq_handler(struct irq_desc = *desc) =20 chained_irq_enter(chip, desc); =20 - value =3D ioread32(irqc->base + STARFIVE_INTC_SRC0_INT); - while (value) { - hwirq =3D ffs(value) - 1; + for (int i =3D 0; i < STARFIVE_INTC_NUM; i++) { + value =3D ioread32(irqc->base + STARFIVE_INTC_SRC_INT(i)); + while (value) { + hwirq =3D ffs(value) - 1; =20 - generic_handle_domain_irq(irqc->domain, hwirq); + generic_handle_domain_irq(irqc->domain, + hwirq + i * STARFIVE_INTC_SRC_IRQ_NUM); =20 - starfive_intc_bit_set(irqc, STARFIVE_INTC_SRC0_CLEAR, BIT(hwirq)); - starfive_intc_bit_clear(irqc, STARFIVE_INTC_SRC0_CLEAR, BIT(hwirq)); + starfive_intc_bit_set(irqc, STARFIVE_INTC_SRC_CLEAR(i), BIT(hwirq)); + starfive_intc_bit_clear(irqc, STARFIVE_INTC_SRC_CLEAR(i), BIT(hwirq)); =20 - __clear_bit(hwirq, &value); + __clear_bit(hwirq, &value); + } } =20 chained_irq_exit(chip, desc); @@ -140,7 +150,8 @@ static int starfive_intc_probe(struct platform_device *= pdev, struct device_node =20 raw_spin_lock_init(&irqc->lock); =20 - irqc->domain =3D irq_domain_create_linear(of_fwnode_handle(intc), STARFIV= E_INTC_SRC_IRQ_NUM, + irqc->domain =3D irq_domain_create_linear(of_fwnode_handle(intc), + STARFIVE_INTC_SRC_IRQ_NUM * STARFIVE_INTC_NUM, &starfive_intc_domain_ops, irqc); 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charset="utf-8" Add irq_set_type() callback to support configuring interrupt trigger types (level high/low, edge rising/falling) for the JHB100 interrupt controller. Also add irq_ack() callabck as required by handle_edge_irq(). Signed-off-by: Changhuang Liang --- drivers/irqchip/irq-starfive-jhb100-intc.c | 73 ++++++++++++++++++++++ 1 file changed, 73 insertions(+) diff --git a/drivers/irqchip/irq-starfive-jhb100-intc.c b/drivers/irqchip/i= rq-starfive-jhb100-intc.c index b3d86bd926ed..0d5914813afd 100644 --- a/drivers/irqchip/irq-starfive-jhb100-intc.c +++ b/drivers/irqchip/irq-starfive-jhb100-intc.c @@ -10,6 +10,7 @@ #include #include #include +#include #include #include #include @@ -19,12 +20,20 @@ #include #include =20 +#define STARFIVE_INTC_SRC_TYPE(n) (0x04 + ((n) * 0x20)) #define STARFIVE_INTC_SRC_CLEAR(n) (0x10 + ((n) * 0x20)) #define STARFIVE_INTC_SRC_MASK(n) (0x14 + ((n) * 0x20)) #define STARFIVE_INTC_SRC_INT(n) (0x1c + ((n) * 0x20)) =20 +#define STARFIVE_INTC_TRIGGER_MASK 0x3 +#define STARFIVE_INTC_TRIGGER_HIGH 0 +#define STARFIVE_INTC_TRIGGER_LOW 1 +#define STARFIVE_INTC_TRIGGER_POSEDGE 2 +#define STARFIVE_INTC_TRIGGER_NEGEDGE 3 + #define STARFIVE_INTC_NUM 2 #define STARFIVE_INTC_SRC_IRQ_NUM 32 +#define STARFIVE_INTC_TYPE_NUM 16 =20 struct starfive_irq_chip { void __iomem *base; @@ -32,6 +41,16 @@ struct starfive_irq_chip { raw_spinlock_t lock; }; =20 +static void starfive_intc_mod(struct starfive_irq_chip *irqc, u32 reg, u32= mask, u32 data) +{ + u32 value; + + value =3D ioread32(irqc->base + reg) & ~mask; + data &=3D mask; + data |=3D value; + iowrite32(data, irqc->base + reg); +} + static void starfive_intc_bit_set(struct starfive_irq_chip *irqc, u32 reg, u32 bit_mask) { @@ -76,10 +95,64 @@ static void starfive_intc_mask(struct irq_data *d) starfive_intc_bit_set(irqc, STARFIVE_INTC_SRC_MASK(i), BIT(bitpos)); } =20 +static void starfive_intc_ack(struct irq_data *d) +{ + /* for handle_edge_irq, nothing to do */ +} + +static int starfive_intc_set_type(struct irq_data *d, unsigned int type) +{ + struct starfive_irq_chip *irqc =3D irq_data_get_irq_chip_data(d); + u32 i, bitpos, ty_pos, ty_shift, trigger, typeval; + irq_flow_handler_t handler; + + i =3D d->hwirq / STARFIVE_INTC_SRC_IRQ_NUM; + bitpos =3D d->hwirq % STARFIVE_INTC_SRC_IRQ_NUM; + ty_pos =3D bitpos / STARFIVE_INTC_TYPE_NUM; + ty_shift =3D (bitpos % STARFIVE_INTC_TYPE_NUM) * 2; + + switch (type) { + case IRQF_TRIGGER_LOW: + trigger =3D STARFIVE_INTC_TRIGGER_LOW; + handler =3D handle_level_irq; + break; + case IRQF_TRIGGER_HIGH: + trigger =3D STARFIVE_INTC_TRIGGER_HIGH; + handler =3D handle_level_irq; + break; + case IRQF_TRIGGER_FALLING: + trigger =3D STARFIVE_INTC_TRIGGER_NEGEDGE; + handler =3D handle_edge_irq; + break; + case IRQF_TRIGGER_RISING: + trigger =3D STARFIVE_INTC_TRIGGER_POSEDGE; + handler =3D handle_edge_irq; + break; + default: + return -EINVAL; + } + + irq_set_handler_locked(d, handler); + typeval =3D trigger << ty_shift; + + guard(raw_spinlock)(&irqc->lock); + + starfive_intc_mod(irqc, STARFIVE_INTC_SRC_TYPE(i) + 4 * ty_pos, + STARFIVE_INTC_TRIGGER_MASK << ty_shift, typeval); + + /* Once the type is updated, clear interrupt can help to reset the type v= alue */ + starfive_intc_bit_set(irqc, STARFIVE_INTC_SRC_CLEAR(i), BIT(bitpos)); + starfive_intc_bit_clear(irqc, STARFIVE_INTC_SRC_CLEAR(i), BIT(bitpos)); + + return 0; +} + static struct irq_chip intc_dev =3D { .name =3D "StarFive JHB100 INTC", .irq_unmask =3D starfive_intc_unmask, .irq_mask =3D starfive_intc_mask, + .irq_ack =3D starfive_intc_ack, + .irq_set_type =3D starfive_intc_set_type, }; =20 static int starfive_intc_map(struct irq_domain *d, unsigned int irq, --=20 2.25.1