From: Linus Walleij <linus.walleij@linaro.org> To: linux-arm-kernel@lists.infradead.org, Imre Kaloz <kaloz@openwrt.org>, Krzysztof Halasa <khalasa@piap.pl> Cc: devicetree@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>, Tim Harvey <tharvey@gateworks.com>, Bartosz Golaszewski <bgolaszewski@baylibre.com>, Olof Johansson <olof@lixom.net>, Linus Walleij <linus.walleij@linaro.org> Subject: [PATCH 13/17 v1] gpio: ixp4xx: Add DT bindings Date: Sun, 3 Feb 2019 22:42:01 +0100 [thread overview] Message-ID: <20190203214205.13594-14-linus.walleij@linaro.org> (raw) In-Reply-To: <20190203214205.13594-1-linus.walleij@linaro.org> This adds DT bindings for the IXP4xx GPIO controller. Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com> Cc: devicetree@vger.kernel.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org> --- Bartosz: looking for your ACK on this, it'd be good if the other GPIO maintainer is aligned with my ideas here. I intend to merge this through the ARM SoC tree. --- .../bindings/gpio/intel,ixp4xx-gpio.txt | 38 +++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 39 insertions(+) create mode 100644 Documentation/devicetree/bindings/gpio/intel,ixp4xx-gpio.txt diff --git a/Documentation/devicetree/bindings/gpio/intel,ixp4xx-gpio.txt b/Documentation/devicetree/bindings/gpio/intel,ixp4xx-gpio.txt new file mode 100644 index 000000000000..8dc41ed99685 --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/intel,ixp4xx-gpio.txt @@ -0,0 +1,38 @@ +Intel IXP4xx XScale Networking Processors GPIO + +This GPIO controller is found in the Intel IXP4xx processors. +It supports 16 GPIO lines. + +The interrupt portions of the GPIO controller is hierarchical: +the synchronous edge detector is part of the GPIO block, but the +actual enabling/disabling of the interrupt line is done in the +main IXP4xx interrupt controller which has a 1:1 mapping for +the first 12 GPIO lines to 12 system interrupts. + +The remaining 4 GPIO lines can not be used for receiving +interrupts. + +The interrupt parent of this GPIO controller must be the +IXP4xx interrupt controller. + +Required properties: + +- compatible : Should be + "intel,ixp4xx-gpio" +- reg : Should contain registers location and length +- gpio-controller : marks this as a GPIO controller +- #gpio-cells : Should be 2, see gpio/gpio.txt +- interrupt-controller : marks this as an interrupt controller +- #interrupt-cells : a standard two-cell interrupt, see + interrupt-controller/interrupts.txt + +Example: + +gpio0: gpio@c8004000 { + compatible = "intel,ixp4xx-gpio"; + reg = <0xc8004000 0x1000>; + gpio-controller; + #gpio-cells = <2>; + interrupt-controller; + #interrupt-cells = <2>; +}; diff --git a/MAINTAINERS b/MAINTAINERS index 775a623dc91d..57d098b85523 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1650,6 +1650,7 @@ M: Imre Kaloz <kaloz@openwrt.org> M: Krzysztof Halasa <khalasa@piap.pl> L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) S: Maintained +F: Documentation/devicetree/bindings/gpio/intel,ixp4xx-gpio.txt F: Documentation/devicetree/bindings/interrupt-controller/intel,ixp4xx-interrupt.txt F: Documentation/devicetree/bindings/timer/intel,ixp4xx-timer.txt F: arch/arm/mach-ixp4xx/ -- 2.20.1
WARNING: multiple messages have this Message-ID (diff)
From: Linus Walleij <linus.walleij@linaro.org> To: linux-arm-kernel@lists.infradead.org, Imre Kaloz <kaloz@openwrt.org>, Krzysztof Halasa <khalasa@piap.pl> Cc: devicetree@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>, Tim Harvey <tharvey@gateworks.com>, Bartosz Golaszewski <bgolaszewski@baylibre.com>, Olof Johansson <olof@lixom.net>, Linus Walleij <linus.walleij@linaro.org> Subject: [PATCH 13/17 v1] gpio: ixp4xx: Add DT bindings Date: Sun, 3 Feb 2019 22:42:01 +0100 [thread overview] Message-ID: <20190203214205.13594-14-linus.walleij@linaro.org> (raw) In-Reply-To: <20190203214205.13594-1-linus.walleij@linaro.org> This adds DT bindings for the IXP4xx GPIO controller. Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com> Cc: devicetree@vger.kernel.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org> --- Bartosz: looking for your ACK on this, it'd be good if the other GPIO maintainer is aligned with my ideas here. I intend to merge this through the ARM SoC tree. --- .../bindings/gpio/intel,ixp4xx-gpio.txt | 38 +++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 39 insertions(+) create mode 100644 Documentation/devicetree/bindings/gpio/intel,ixp4xx-gpio.txt diff --git a/Documentation/devicetree/bindings/gpio/intel,ixp4xx-gpio.txt b/Documentation/devicetree/bindings/gpio/intel,ixp4xx-gpio.txt new file mode 100644 index 000000000000..8dc41ed99685 --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/intel,ixp4xx-gpio.txt @@ -0,0 +1,38 @@ +Intel IXP4xx XScale Networking Processors GPIO + +This GPIO controller is found in the Intel IXP4xx processors. +It supports 16 GPIO lines. + +The interrupt portions of the GPIO controller is hierarchical: +the synchronous edge detector is part of the GPIO block, but the +actual enabling/disabling of the interrupt line is done in the +main IXP4xx interrupt controller which has a 1:1 mapping for +the first 12 GPIO lines to 12 system interrupts. + +The remaining 4 GPIO lines can not be used for receiving +interrupts. + +The interrupt parent of this GPIO controller must be the +IXP4xx interrupt controller. + +Required properties: + +- compatible : Should be + "intel,ixp4xx-gpio" +- reg : Should contain registers location and length +- gpio-controller : marks this as a GPIO controller +- #gpio-cells : Should be 2, see gpio/gpio.txt +- interrupt-controller : marks this as an interrupt controller +- #interrupt-cells : a standard two-cell interrupt, see + interrupt-controller/interrupts.txt + +Example: + +gpio0: gpio@c8004000 { + compatible = "intel,ixp4xx-gpio"; + reg = <0xc8004000 0x1000>; + gpio-controller; + #gpio-cells = <2>; + interrupt-controller; + #interrupt-cells = <2>; +}; diff --git a/MAINTAINERS b/MAINTAINERS index 775a623dc91d..57d098b85523 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1650,6 +1650,7 @@ M: Imre Kaloz <kaloz@openwrt.org> M: Krzysztof Halasa <khalasa@piap.pl> L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) S: Maintained +F: Documentation/devicetree/bindings/gpio/intel,ixp4xx-gpio.txt F: Documentation/devicetree/bindings/interrupt-controller/intel,ixp4xx-interrupt.txt F: Documentation/devicetree/bindings/timer/intel,ixp4xx-timer.txt F: arch/arm/mach-ixp4xx/ -- 2.20.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2019-02-03 21:42 UTC|newest] Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-02-03 21:41 [PATCH 00/17 v1] ARM: ixp4xx: Modernize and DT support Linus Walleij 2019-02-03 21:41 ` [PATCH 01/17 v1] ARM: ixp4xx: Convert to MULTI_IRQ_HANDLER Linus Walleij 2019-02-03 21:41 ` [PATCH 02/17 v1] ARM: ixp4xx: Pass IRQ resource to beeper Linus Walleij 2019-02-03 21:41 ` [PATCH 03/17 v1] ARM: ixp4xx: Convert to SPARSE_IRQ Linus Walleij 2019-02-03 21:41 ` [PATCH 04/17 v1] irqchip: Add driver for IXP4xx Linus Walleij 2019-02-11 15:30 ` Marc Zyngier 2019-02-11 20:58 ` Linus Walleij 2019-02-11 22:11 ` Marc Zyngier 2019-02-18 7:06 ` Krzysztof Hałasa 2019-02-18 7:16 ` Linus Walleij 2019-02-18 7:35 ` Krzysztof Hałasa 2019-02-18 9:40 ` Arnd Bergmann 2019-02-18 12:03 ` Krzysztof Hałasa 2019-02-18 12:44 ` Arnd Bergmann 2019-02-19 6:51 ` Krzysztof Hałasa 2019-02-19 9:46 ` Arnd Bergmann 2019-02-20 7:35 ` Krzysztof Hałasa 2019-02-18 9:18 ` Arnd Bergmann 2019-02-03 21:41 ` [PATCH 05/17 v1] gpio: ixp4xx: Add driver for the IXP4xx GPIO Linus Walleij 2019-02-06 16:03 ` Bartosz Golaszewski 2019-02-21 8:50 ` Linus Walleij 2019-02-03 21:41 ` [PATCH 06/17 v1] ARM: ixp4xx: Switch to use new IRQ+GPIO drivers Linus Walleij 2019-02-03 21:41 ` [PATCH 07/17 v1] clocksource/drivers/ixp4xx: Add driver Linus Walleij 2019-02-03 21:41 ` [PATCH 08/17 v1] ARM: ixp4xx: Switch to use new timer driver Linus Walleij 2019-02-03 21:41 ` [PATCH 09/17 v1] irqchip: ixp4xx: Add DT bindings Linus Walleij 2019-02-03 21:41 ` Linus Walleij 2019-02-18 21:25 ` Rob Herring 2019-02-18 21:25 ` Rob Herring 2019-02-03 21:41 ` [PATCH 10/17 v1] irqchip: ixp4xx: Add OF initialization support Linus Walleij 2019-02-03 21:41 ` [PATCH 11/17 v1] clocksource/drivers/ixp4xx: Add DT bindings Linus Walleij 2019-02-03 21:41 ` Linus Walleij 2019-02-18 21:26 ` Rob Herring 2019-02-18 21:26 ` Rob Herring 2019-02-18 22:10 ` Daniel Lezcano 2019-02-03 21:42 ` [PATCH 12/17 v1] clocksource/drivers/ixp4xx: Add OF initialization support Linus Walleij 2019-02-11 11:26 ` Daniel Lezcano 2019-02-03 21:42 ` Linus Walleij [this message] 2019-02-03 21:42 ` [PATCH 13/17 v1] gpio: ixp4xx: Add DT bindings Linus Walleij 2019-02-06 16:05 ` Bartosz Golaszewski 2019-02-18 21:27 ` Rob Herring 2019-02-18 21:27 ` Rob Herring 2019-02-03 21:42 ` [PATCH 14/17 v1] gpio: ixp4xx: Add OF probing support Linus Walleij 2019-02-06 16:13 ` Bartosz Golaszewski 2019-02-21 8:55 ` Linus Walleij 2019-02-03 21:42 ` [PATCH 15/17 v1] ARM: ixp4xx: Add DT bindings Linus Walleij 2019-02-03 21:42 ` Linus Walleij 2019-02-04 15:16 ` Rob Herring 2019-02-04 15:16 ` Rob Herring 2019-02-08 19:37 ` Linus Walleij 2019-02-08 19:37 ` Linus Walleij 2019-02-03 21:42 ` [PATCH 16/17 v1] ARM: ixp4xx: Add device tree boot support Linus Walleij 2019-02-03 21:42 ` [PATCH 17/17 v1] RFC: ARM: dts: Add some initial IXP4xx device trees Linus Walleij
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