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, Linus Walleij <linus.walleij@linaro.org>, Rob Herring <robh@kernel.org>, Bartosz Golaszewski <bgolaszewski@baylibre.com> Subject: [PATCH 13/30 v2] gpio: ixp4xx: Add DT bindings Date: Thu, 21 Feb 2019 16:44:41 +0100 [thread overview] Message-ID: <20190221154458.23763-14-linus.walleij@linaro.org> (raw) In-Reply-To: <20190221154458.23763-1-linus.walleij@linaro.org> This adds DT bindings for the IXP4xx GPIO controller. Cc: devicetree@vger.kernel.org Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> --- ChangeLog v1->v2: - Collect Bartosz and Rob's review tags. --- .../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 bd04142b1026..b44ee076d57c 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.yaml F: Documentation/devicetree/bindings/timer/intel,ixp4xx-timer.yaml 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, Linus Walleij <linus.walleij@linaro.org>, Rob Herring <robh@kernel.org>, Bartosz Golaszewski <bgolaszewski@baylibre.com> Subject: [PATCH 13/30 v2] gpio: ixp4xx: Add DT bindings Date: Thu, 21 Feb 2019 16:44:41 +0100 [thread overview] Message-ID: <20190221154458.23763-14-linus.walleij@linaro.org> (raw) In-Reply-To: <20190221154458.23763-1-linus.walleij@linaro.org> This adds DT bindings for the IXP4xx GPIO controller. Cc: devicetree@vger.kernel.org Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> --- ChangeLog v1->v2: - Collect Bartosz and Rob's review tags. --- .../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 bd04142b1026..b44ee076d57c 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.yaml F: Documentation/devicetree/bindings/timer/intel,ixp4xx-timer.yaml 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:[~2019-02-21 15:44 UTC|newest] Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-02-21 15:44 [PATCH 00/30 v2] ARM: ixp4xx: Modernize and DT support Linus Walleij 2019-02-21 15:44 ` [PATCH 01/30 v2] ARM: ixp4xx: Convert to MULTI_IRQ_HANDLER Linus Walleij 2019-02-21 15:44 ` [PATCH 02/30 v2] ARM: ixp4xx: Pass IRQ resource to beeper Linus Walleij 2019-02-21 15:44 ` [PATCH 03/30 v2] ARM: ixp4xx: Convert to SPARSE_IRQ Linus Walleij 2019-02-21 15:44 ` [PATCH 04/30 v2] irqchip: Add driver for IXP4xx Linus Walleij 2019-02-22 9:51 ` Marc Zyngier 2019-02-21 15:44 ` [PATCH 05/30 v2] gpio: ixp4xx: Add driver for the IXP4xx GPIO Linus Walleij 2019-02-21 15:44 ` [PATCH 06/30 v2] ARM: ixp4xx: Switch to use new IRQ+GPIO drivers Linus Walleij 2019-02-22 9:51 ` Marc Zyngier 2019-02-21 15:44 ` [PATCH 07/30 v2] clocksource/drivers/ixp4xx: Add driver Linus Walleij 2019-02-21 20:54 ` Daniel Lezcano 2019-03-03 9:35 ` Linus Walleij 2019-02-21 15:44 ` [PATCH 08/30 v2] ARM: ixp4xx: Switch to use new timer driver Linus Walleij 2019-02-22 8:38 ` Daniel Lezcano 2019-02-21 15:44 ` [PATCH 09/30 v2] irqchip: ixp4xx: Add DT bindings Linus Walleij 2019-02-21 15:44 ` Linus Walleij 2019-02-21 21:39 ` Rob Herring 2019-02-21 21:39 ` Rob Herring 2019-02-21 15:44 ` [PATCH 10/30 v2] irqchip: ixp4xx: Add OF initialization support Linus Walleij 2019-02-22 9:53 ` Marc Zyngier 2019-02-21 15:44 ` [PATCH 11/30 v2] clocksource/drivers/ixp4xx: Add DT bindings Linus Walleij 2019-02-21 15:44 ` Linus Walleij 2019-02-21 21:40 ` Rob Herring 2019-02-21 21:40 ` Rob Herring 2019-02-21 15:44 ` [PATCH 12/30 v2] clocksource/drivers/ixp4xx: Add OF initialization support Linus Walleij 2019-02-21 15:44 ` Linus Walleij [this message] 2019-02-21 15:44 ` [PATCH 13/30 v2] gpio: ixp4xx: Add DT bindings Linus Walleij 2019-02-21 15:44 ` [PATCH 14/30 v2] gpio: ixp4xx: Add OF probing support Linus Walleij 2019-02-21 15:44 ` [PATCH 15/30 v2] ARM: ixp4xx: Add DT bindings Linus Walleij 2019-02-21 15:44 ` Linus Walleij 2019-02-21 15:44 ` [PATCH 16/30 v2] ARM: ixp4xx: Add device tree boot support Linus Walleij 2019-02-21 15:44 ` [PATCH 17/30 v2] ARM: dts: Add some initial IXP4xx device trees Linus Walleij 2019-02-21 15:44 ` [PATCH 18/30 v2] ARM: ixp4xx: Move NPE and QMGR to drivers/soc Linus Walleij 2019-02-21 15:44 ` [PATCH 19/30 v2] ARM: ixp4xx: Move IXP4xx QMGR and NPE headers Linus Walleij 2019-02-21 15:44 ` [PATCH 20/30 v2] ARM: ixp4xx: Turn the NPE into a platform device Linus Walleij 2019-02-21 15:44 ` [PATCH 21/30 v2] ARM: ixp4xx: Turn the QMGR " Linus Walleij 2019-02-21 15:44 ` [PATCH 22/30 v2] soc: ixp4xx: npe: Pass addresses as resources Linus Walleij 2019-02-21 15:44 ` [PATCH 23/30 v2] soc: ixp4xx: Uninline several functions Linus Walleij 2019-02-21 15:44 ` [PATCH 24/30 v2] soc: ixp4xx: Remove unused functions Linus Walleij 2019-02-21 15:44 ` [PATCH 25/30 v2] soc: ixp4xx: qmgr: Pass resources Linus Walleij 2019-02-21 15:44 ` [PATCH 26/30 v2] soc: ixp4xx: Add DT bindings for IXP4xx NPE Linus Walleij 2019-02-21 15:44 ` Linus Walleij 2019-02-21 21:48 ` Rob Herring 2019-02-21 21:48 ` Rob Herring 2019-02-22 10:37 ` Linus Walleij 2019-02-22 10:37 ` Linus Walleij 2019-02-21 15:44 ` [PATCH 27/30 v2] soc: ixp4xx: npe: Add DT probe code Linus Walleij 2019-02-21 15:44 ` [PATCH 28/30 v2] soc: ixp4xx: qmgr: Add DT bindings for IXP4xx qmgr Linus Walleij 2019-02-21 15:44 ` Linus Walleij 2019-02-21 22:00 ` Rob Herring 2019-02-21 22:00 ` Rob Herring 2019-02-21 15:44 ` [PATCH 29/30 v2] soc: ixp4xx: qmgr: Add DT probe code Linus Walleij 2019-02-21 15:44 ` [PATCH 30/30 v2] ARM: dts: Add queue manager and NPE to the IXP4xx DTSI Linus Walleij 2019-03-18 7:16 ` [PATCH 00/30 v2] ARM: ixp4xx: Modernize and DT support Krzysztof Hałasa 2019-03-18 22:16 ` Linus Walleij 2019-04-02 12:12 ` Krzysztof Hałasa
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20190221154458.23763-14-linus.walleij@linaro.org \ --to=linus.walleij@linaro.org \ --cc=bgolaszewski@baylibre.com \ --cc=devicetree@vger.kernel.org \ --cc=kaloz@openwrt.org \ --cc=khalasa@piap.pl \ --cc=linux-arm-kernel@lists.infradead.org \ --cc=robh@kernel.org \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.