From: Yoshinori Sato <ysato@users.sourceforge.jp> To: devicetree@vger.kernel.org, linux-sh@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Subject: [PATCH v4 19/22] sh: IO-DATA HDL-U (a,k.a landisk) IRQCHIP driver Date: Wed, 29 Jun 2016 13:41:04 +0000 [thread overview] Message-ID: <1467207667-15768-20-git-send-email-ysato@users.sourceforge.jp> (raw) In-Reply-To: <1467207667-15768-1-git-send-email-ysato@users.sourceforge.jp> Changes v4 - split patches - remove unneeded line - example update Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp> --- .../interrupt-controller/iodata-landisk.txt | 31 ++++++++++ drivers/irqchip/Makefile | 2 +- drivers/irqchip/irq-io-landisk.c | 72 ++++++++++++++++++++++ 3 files changed, 104 insertions(+), 1 deletion(-) create mode 100644 Documentation/devicetree/bindings/interrupt-controller/iodata-landisk.txt create mode 100644 drivers/irqchip/irq-io-landisk.c diff --git a/Documentation/devicetree/bindings/interrupt-controller/iodata-landisk.txt b/Documentation/devicetree/bindings/interrupt-controller/iodata-landisk.txt new file mode 100644 index 0000000..cf461dc --- /dev/null +++ b/Documentation/devicetree/bindings/interrupt-controller/iodata-landisk.txt @@ -0,0 +1,31 @@ +DT bindings for the I/O DATA HDL-U interrupt controller + +Required properties: + + - compatible: has to be "iodata,landisk-intc". + + - reg: Base address and length of interrupt controller register. + + - interrupt-controller: Identifies the node as an interrupt controller. + + - #interrupt-cells: has to be <1>: an interrupt index. + + - interrupt-map: Interrupt mapping on parent controller. + +Example +------- + + cpldintc: cpld@b0000000 { + compatible = "iodata,landisk-intc"; + #interrupt-cells = <1>; + interrupt-controller; + reg = <0xb0000000 8>; + interrupt-map=<0 &shintc evt2irq(0x2a0)>, + <1 &shintc evt2irq(0x2c0)>, + <2 &shintc evt2irq(0x2e0)>, + <3 &shintc evt2irq(0x300)>, + <4 &shintc evt2irq(0x320)>, + <5 &shintc evt2irq(0x340)>, + <6 &shintc evt2irq(0x360)>, + <7 &shintc evt2irq(0x380)>; + }; diff --git a/drivers/irqchip/Makefile b/drivers/irqchip/Makefile index 2ab5735..5e225cf 100644 --- a/drivers/irqchip/Makefile +++ b/drivers/irqchip/Makefile @@ -69,4 +69,4 @@ obj-$(CONFIG_PIC32_EVIC) += irq-pic32-evic.o obj-$(CONFIG_MVEBU_ODMI) += irq-mvebu-odmi.o obj-$(CONFIG_LS_SCFG_MSI) += irq-ls-scfg-msi.o obj-$(CONFIG_EZNPS_GIC) += irq-eznps.o -obj-$(CONFIG_RENESAS_SH_INTC) += irq-renesas-sh7751.o +obj-$(CONFIG_RENESAS_SH_INTC) += irq-renesas-sh7751.o irq-io-landisk.o diff --git a/drivers/irqchip/irq-io-landisk.c b/drivers/irqchip/irq-io-landisk.c new file mode 100644 index 0000000..b7f3b41 --- /dev/null +++ b/drivers/irqchip/irq-io-landisk.c @@ -0,0 +1,72 @@ +/* + * IO-DATA LANDISK CPLD IRQ driver + * + * Copyright 2016 Yoshinori Sato <ysato@users.sourceforge.jp> + */ + +#include <linux/init.h> +#include <linux/irq.h> +#include <linux/irqchip.h> +#include <linux/irqdomain.h> +#include <linux/of_address.h> +#include <linux/of_irq.h> +#include <linux/io.h> + +static void landisk_mask_irq(struct irq_data *data) +{ + u8 mask = __raw_readb(data->chip_data + 5); + + mask &= ~(1 << (data->irq - 5)); + __raw_writeb(mask, data->chip_data + 5); +} + +static void landisk_unmask_irq(struct irq_data *data) +{ + u8 mask = __raw_readb(data->chip_data + 5); + + mask |= (1 << (data->irq - 5)); + __raw_writeb(mask, data->chip_data + 5); +} + +static struct irq_chip cpld_irq_chip = { + .name = "LANDISK-CPLD", + .irq_unmask = landisk_unmask_irq, + .irq_mask = landisk_mask_irq, +}; + +static int cpld_map(struct irq_domain *d, unsigned int virq, + irq_hw_number_t hw_irq_num) +{ + irq_set_chip_and_handler(virq, &cpld_irq_chip, + handle_simple_irq); + irq_set_chip_data(virq, d->host_data); + + return 0; +} + +static struct irq_domain_ops irq_ops = { + .xlate = irq_domain_xlate_onecell, + .map = cpld_map, +}; + +static int __init landisk_intc_of_init(struct device_node *intc, + struct device_node *parent) +{ + struct irq_domain *domain, *pdomain; + int num_irqpin; + void *baseaddr; + + baseaddr = of_iomap(intc, 0); + pdomain = irq_find_host(parent); + of_get_property(intc, "interrupt-map", &num_irqpin); + num_irqpin /= sizeof(u32) * 3; + domain = irq_domain_create_hierarchy(pdomain, 0, num_irqpin, + of_node_to_fwnode(intc), + &irq_ops, baseaddr); + if (!domain) + panic("%s: unable to create IRQ domain\n", intc->full_name); + irq_domain_associate_many(domain, 5, 0, 8); + return 0; +} + +IRQCHIP_DECLARE(cpld_intc, "iodata,landisk-intc", landisk_intc_of_init); -- 2.7.0
WARNING: multiple messages have this Message-ID (diff)
From: Yoshinori Sato <ysato@users.sourceforge.jp> To: devicetree@vger.kernel.org, linux-sh@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Subject: [PATCH v4 19/22] sh: IO-DATA HDL-U (a,k.a landisk) IRQCHIP driver Date: Wed, 29 Jun 2016 22:41:04 +0900 [thread overview] Message-ID: <1467207667-15768-20-git-send-email-ysato@users.sourceforge.jp> (raw) In-Reply-To: <1467207667-15768-1-git-send-email-ysato@users.sourceforge.jp> Changes v4 - split patches - remove unneeded line - example update Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp> --- .../interrupt-controller/iodata-landisk.txt | 31 ++++++++++ drivers/irqchip/Makefile | 2 +- drivers/irqchip/irq-io-landisk.c | 72 ++++++++++++++++++++++ 3 files changed, 104 insertions(+), 1 deletion(-) create mode 100644 Documentation/devicetree/bindings/interrupt-controller/iodata-landisk.txt create mode 100644 drivers/irqchip/irq-io-landisk.c diff --git a/Documentation/devicetree/bindings/interrupt-controller/iodata-landisk.txt b/Documentation/devicetree/bindings/interrupt-controller/iodata-landisk.txt new file mode 100644 index 0000000..cf461dc --- /dev/null +++ b/Documentation/devicetree/bindings/interrupt-controller/iodata-landisk.txt @@ -0,0 +1,31 @@ +DT bindings for the I/O DATA HDL-U interrupt controller + +Required properties: + + - compatible: has to be "iodata,landisk-intc". + + - reg: Base address and length of interrupt controller register. + + - interrupt-controller: Identifies the node as an interrupt controller. + + - #interrupt-cells: has to be <1>: an interrupt index. + + - interrupt-map: Interrupt mapping on parent controller. + +Example +------- + + cpldintc: cpld@b0000000 { + compatible = "iodata,landisk-intc"; + #interrupt-cells = <1>; + interrupt-controller; + reg = <0xb0000000 8>; + interrupt-map=<0 &shintc evt2irq(0x2a0)>, + <1 &shintc evt2irq(0x2c0)>, + <2 &shintc evt2irq(0x2e0)>, + <3 &shintc evt2irq(0x300)>, + <4 &shintc evt2irq(0x320)>, + <5 &shintc evt2irq(0x340)>, + <6 &shintc evt2irq(0x360)>, + <7 &shintc evt2irq(0x380)>; + }; diff --git a/drivers/irqchip/Makefile b/drivers/irqchip/Makefile index 2ab5735..5e225cf 100644 --- a/drivers/irqchip/Makefile +++ b/drivers/irqchip/Makefile @@ -69,4 +69,4 @@ obj-$(CONFIG_PIC32_EVIC) += irq-pic32-evic.o obj-$(CONFIG_MVEBU_ODMI) += irq-mvebu-odmi.o obj-$(CONFIG_LS_SCFG_MSI) += irq-ls-scfg-msi.o obj-$(CONFIG_EZNPS_GIC) += irq-eznps.o -obj-$(CONFIG_RENESAS_SH_INTC) += irq-renesas-sh7751.o +obj-$(CONFIG_RENESAS_SH_INTC) += irq-renesas-sh7751.o irq-io-landisk.o diff --git a/drivers/irqchip/irq-io-landisk.c b/drivers/irqchip/irq-io-landisk.c new file mode 100644 index 0000000..b7f3b41 --- /dev/null +++ b/drivers/irqchip/irq-io-landisk.c @@ -0,0 +1,72 @@ +/* + * IO-DATA LANDISK CPLD IRQ driver + * + * Copyright 2016 Yoshinori Sato <ysato@users.sourceforge.jp> + */ + +#include <linux/init.h> +#include <linux/irq.h> +#include <linux/irqchip.h> +#include <linux/irqdomain.h> +#include <linux/of_address.h> +#include <linux/of_irq.h> +#include <linux/io.h> + +static void landisk_mask_irq(struct irq_data *data) +{ + u8 mask = __raw_readb(data->chip_data + 5); + + mask &= ~(1 << (data->irq - 5)); + __raw_writeb(mask, data->chip_data + 5); +} + +static void landisk_unmask_irq(struct irq_data *data) +{ + u8 mask = __raw_readb(data->chip_data + 5); + + mask |= (1 << (data->irq - 5)); + __raw_writeb(mask, data->chip_data + 5); +} + +static struct irq_chip cpld_irq_chip = { + .name = "LANDISK-CPLD", + .irq_unmask = landisk_unmask_irq, + .irq_mask = landisk_mask_irq, +}; + +static int cpld_map(struct irq_domain *d, unsigned int virq, + irq_hw_number_t hw_irq_num) +{ + irq_set_chip_and_handler(virq, &cpld_irq_chip, + handle_simple_irq); + irq_set_chip_data(virq, d->host_data); + + return 0; +} + +static struct irq_domain_ops irq_ops = { + .xlate = irq_domain_xlate_onecell, + .map = cpld_map, +}; + +static int __init landisk_intc_of_init(struct device_node *intc, + struct device_node *parent) +{ + struct irq_domain *domain, *pdomain; + int num_irqpin; + void *baseaddr; + + baseaddr = of_iomap(intc, 0); + pdomain = irq_find_host(parent); + of_get_property(intc, "interrupt-map", &num_irqpin); + num_irqpin /= sizeof(u32) * 3; + domain = irq_domain_create_hierarchy(pdomain, 0, num_irqpin, + of_node_to_fwnode(intc), + &irq_ops, baseaddr); + if (!domain) + panic("%s: unable to create IRQ domain\n", intc->full_name); + irq_domain_associate_many(domain, 5, 0, 8); + return 0; +} + +IRQCHIP_DECLARE(cpld_intc, "iodata,landisk-intc", landisk_intc_of_init); -- 2.7.0
next prev parent reply other threads:[~2016-06-29 13:41 UTC|newest] Thread overview: 75+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-06-29 13:40 [PATCH v4 00/22] sh: LANDISK and R2Dplus convert to device tree Yoshinori Sato 2016-06-29 13:40 ` Yoshinori Sato 2016-06-29 13:40 ` [PATCH v4 01/22] sh: Add sh-specific early_init_dt_reserve_memory_arch Yoshinori Sato 2016-06-29 13:40 ` Yoshinori Sato 2016-06-29 13:40 ` [PATCH v4 02/22] sh: More early unflatten device tree Yoshinori Sato 2016-06-29 13:40 ` Yoshinori Sato 2016-06-29 13:40 ` [PATCH v4 03/22] sh: set preset_lpj Yoshinori Sato 2016-06-29 13:40 ` Yoshinori Sato 2016-06-29 13:40 ` [PATCH v4 04/22] sh: Use P1SEGADDR Yoshinori Sato 2016-06-29 13:40 ` Yoshinori Sato 2016-06-29 13:40 ` [PATCH v4 05/22] sh: command line passing chosen/bootargs in devicetree Yoshinori Sato 2016-06-29 13:40 ` Yoshinori Sato 2016-06-29 13:40 ` [PATCH v4 06/22] sh: FDT address save before bank change Yoshinori Sato 2016-06-29 13:40 ` Yoshinori Sato 2016-06-29 13:40 ` [PATCH v4 07/22] sh: Passing FDT address on zImage Yoshinori Sato 2016-06-29 13:40 ` Yoshinori Sato 2016-06-29 13:40 ` [PATCH v4 08/22] sh: Disable board specific code on device tree mode Yoshinori Sato 2016-06-29 13:40 ` Yoshinori Sato 2016-06-29 13:40 ` [PATCH v4 09/22] sh: Use GENERIC_IOMAP " Yoshinori Sato 2016-06-29 13:40 ` Yoshinori Sato 2016-06-29 13:40 ` [PATCH v4 10/22] sh: Add board specific initialize of of-generic Yoshinori Sato 2016-06-29 13:40 ` Yoshinori Sato 2016-06-29 13:40 ` [PATCH v4 11/22] sh: SH7750/51 CPG Driver Yoshinori Sato 2016-06-29 13:40 ` Yoshinori Sato 2016-06-29 13:40 ` [PATCH v4 12/22] sh: Add PCI host bridge driver for SH7751 Yoshinori Sato 2016-06-29 13:40 ` Yoshinori Sato 2016-06-29 14:57 ` Arnd Bergmann 2016-06-29 14:57 ` Arnd Bergmann 2016-06-30 14:52 ` Yoshinori Sato 2016-06-30 14:52 ` Yoshinori Sato 2016-07-01 1:43 ` Rob Herring 2016-07-01 1:43 ` Rob Herring 2016-06-29 13:40 ` [PATCH v4 13/22] sh: irqchip: SH7751 IRQCHIP Driver Yoshinori Sato 2016-06-29 13:40 ` Yoshinori Sato 2016-06-29 13:40 ` [PATCH v4 14/22] sh: SH7751 core dtsi Yoshinori Sato 2016-06-29 13:40 ` Yoshinori Sato 2016-07-01 8:57 ` Geert Uytterhoeven 2016-07-01 8:57 ` Geert Uytterhoeven 2016-07-03 11:34 ` Yoshinori Sato 2016-07-03 11:34 ` Yoshinori Sato 2016-07-04 7:15 ` Geert Uytterhoeven 2016-07-04 7:15 ` Geert Uytterhoeven [not found] ` <CAMuHMdXPfP+A4PFy81bRoq4Va=5JpgCz2M3D6icWf0zCGTw8pA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org> 2016-07-04 16:12 ` Yoshinori Sato 2016-07-04 16:12 ` Yoshinori Sato 2016-07-04 16:12 ` Yoshinori Sato 2016-06-29 13:41 ` [PATCH v4 15/22] sh: Move common PCI stuff to arch/sh/kernel Yoshinori Sato 2016-06-29 13:41 ` Yoshinori Sato 2016-06-29 13:41 ` [PATCH v4 16/22] pci: pci_config_window move to linux/pci.h Yoshinori Sato 2016-06-29 13:41 ` Yoshinori Sato 2016-06-29 13:41 ` [PATCH v4 17/22] pci: PCI_HOST_GENERIC enable for SH Yoshinori Sato 2016-06-29 13:41 ` Yoshinori Sato 2016-06-29 13:41 ` [PATCH v4 18/22] sh: Add separate DTB build rule Yoshinori Sato 2016-06-29 13:41 ` Yoshinori Sato 2016-06-29 13:41 ` Yoshinori Sato [this message] 2016-06-29 13:41 ` [PATCH v4 19/22] sh: IO-DATA HDL-U (a,k.a landisk) IRQCHIP driver Yoshinori Sato 2016-06-29 13:43 ` John Paul Adrian Glaubitz 2016-06-29 13:43 ` John Paul Adrian Glaubitz 2016-07-01 1:48 ` Rob Herring 2016-07-01 1:48 ` Rob Herring 2016-07-03 11:36 ` Yoshinori Sato 2016-07-03 11:36 ` Yoshinori Sato 2016-06-29 13:41 ` [PATCH v4 20/22] sh: IO-DATA HDL-U (a,k.a landisk) DeviceTree Yoshinori Sato 2016-06-29 13:41 ` Yoshinori Sato 2016-06-29 13:41 ` [PATCH v4 21/22] sh: Renesas RTS7751R2Dplus (a,k.a R2Dplus) IRQCHIP Driver Yoshinori Sato 2016-06-29 13:41 ` Yoshinori Sato 2016-07-01 1:53 ` Rob Herring 2016-07-01 1:53 ` Rob Herring 2016-07-03 11:35 ` Yoshinori Sato 2016-07-03 11:35 ` Yoshinori Sato 2016-06-29 13:41 ` [PATCH v4 22/22] sh: Renesas RTS7751R2Dplus (a,k.a R2Dplus) DeviceTree Yoshinori Sato 2016-06-29 13:41 ` Yoshinori Sato 2016-06-29 14:16 ` Sergei Shtylyov 2016-06-29 14:16 ` Sergei Shtylyov 2016-06-30 14:47 ` Yoshinori Sato 2016-06-30 14:47 ` Yoshinori Sato
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