From: "Andrew F. Davis" <afd@ti.com> To: Linus Walleij <linus.walleij@linaro.org>, Alexandre Courbot <gnurou@gmail.com>, Mark Brown <broonie@kernel.org>, Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>, Mark Rutland <mark.rutland@arm.com>, Ian Campbell <ijc+devicetree@hellion.org.uk>, Kumar Gala <galak@codeaurora.org> Cc: linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, "Andrew F. Davis" <afd@ti.com> Subject: [PATCH v2 1/2] dt-bindings: GPIO: Add generic serializer binding Date: Mon, 25 Jan 2016 10:37:30 -0600 [thread overview] Message-ID: <1453739851-31839-2-git-send-email-afd@ti.com> (raw) In-Reply-To: <1453739851-31839-1-git-send-email-afd@ti.com> Add binding for generic parallel-in/serial-out shift register devices used as GPIO. Signed-off-by: Andrew F. Davis <afd@ti.com> --- .../devicetree/bindings/gpio/gpio-pisosr.txt | 34 ++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 Documentation/devicetree/bindings/gpio/gpio-pisosr.txt diff --git a/Documentation/devicetree/bindings/gpio/gpio-pisosr.txt b/Documentation/devicetree/bindings/gpio/gpio-pisosr.txt new file mode 100644 index 0000000..e69e8ec --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/gpio-pisosr.txt @@ -0,0 +1,34 @@ +Generic Parallel-in/Serial-out Shift Register GPIO Driver + +This binding describes generic parallel-in/serial-out shift register +devices that can be used for GPI (General Purpose Input). This includes +SN74165 serial-out shift registers and the SN65HVS88x series of +industrial serializers. + +Required properties: + - compatible : Should be "pisosr-gpio". + - gpio-controller : Marks the device node as a GPIO controller. + - #gpio-cells : Should be two. For consumer use see gpio.txt. + +Optional properties: + - ngpios : Number of GPIO lines, default is 8. + - load-gpios : GPIO pin specifier attached to load enable, this + pin is pulsed before reading from the device to + load input pin values into the the device. + +For other required and optional properties of SPI slave +nodes please refer to ../spi/spi-bus.txt. + +Example: + + sn65hvs882@0 { + compatible = "pisosr-gpio"; + gpio-controller; + #gpio-cells = <2>; + + load-gpios = <&gpio2 23 GPIO_ACTIVE_LOW>; + + reg = <0>; + spi-max-frequency = <1000000>; + spi-cpol; + }; -- 2.7.0
WARNING: multiple messages have this Message-ID (diff)
From: "Andrew F. Davis" <afd@ti.com> To: Linus Walleij <linus.walleij@linaro.org>, Alexandre Courbot <gnurou@gmail.com>, Mark Brown <broonie@kernel.org>, Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>, Mark Rutland <mark.rutland@arm.com>, Ian Campbell <ijc+devicetree@hellion.org.uk>, Kumar Gala <galak@codeaurora.org> Cc: <linux-gpio@vger.kernel.org>, <devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>, "Andrew F. Davis" <afd@ti.com> Subject: [PATCH v2 1/2] dt-bindings: GPIO: Add generic serializer binding Date: Mon, 25 Jan 2016 10:37:30 -0600 [thread overview] Message-ID: <1453739851-31839-2-git-send-email-afd@ti.com> (raw) In-Reply-To: <1453739851-31839-1-git-send-email-afd@ti.com> Add binding for generic parallel-in/serial-out shift register devices used as GPIO. Signed-off-by: Andrew F. Davis <afd@ti.com> --- .../devicetree/bindings/gpio/gpio-pisosr.txt | 34 ++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 Documentation/devicetree/bindings/gpio/gpio-pisosr.txt diff --git a/Documentation/devicetree/bindings/gpio/gpio-pisosr.txt b/Documentation/devicetree/bindings/gpio/gpio-pisosr.txt new file mode 100644 index 0000000..e69e8ec --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/gpio-pisosr.txt @@ -0,0 +1,34 @@ +Generic Parallel-in/Serial-out Shift Register GPIO Driver + +This binding describes generic parallel-in/serial-out shift register +devices that can be used for GPI (General Purpose Input). This includes +SN74165 serial-out shift registers and the SN65HVS88x series of +industrial serializers. + +Required properties: + - compatible : Should be "pisosr-gpio". + - gpio-controller : Marks the device node as a GPIO controller. + - #gpio-cells : Should be two. For consumer use see gpio.txt. + +Optional properties: + - ngpios : Number of GPIO lines, default is 8. + - load-gpios : GPIO pin specifier attached to load enable, this + pin is pulsed before reading from the device to + load input pin values into the the device. + +For other required and optional properties of SPI slave +nodes please refer to ../spi/spi-bus.txt. + +Example: + + sn65hvs882@0 { + compatible = "pisosr-gpio"; + gpio-controller; + #gpio-cells = <2>; + + load-gpios = <&gpio2 23 GPIO_ACTIVE_LOW>; + + reg = <0>; + spi-max-frequency = <1000000>; + spi-cpol; + }; -- 2.7.0
next prev parent reply other threads:[~2016-01-25 16:37 UTC|newest] Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-01-25 16:37 [PATCH v2 0/2] gpio: Add driver for SPI serializers Andrew F. Davis 2016-01-25 16:37 ` Andrew F. Davis 2016-01-25 16:37 ` Andrew F. Davis [this message] 2016-01-25 16:37 ` [PATCH v2 1/2] dt-bindings: GPIO: Add generic serializer binding Andrew F. Davis 2016-01-25 19:37 ` Rob Herring [not found] ` <1453739851-31839-2-git-send-email-afd-l0cyMroinI0@public.gmane.org> 2016-01-28 10:59 ` Linus Walleij 2016-01-28 10:59 ` Linus Walleij [not found] ` <CACRpkdbSAi7t2gEy=jHhgCeQaGziDor1U2b5CDMciS8N_gYX-w-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org> 2016-01-28 16:56 ` Rob Herring 2016-01-28 16:56 ` Rob Herring [not found] ` <1453739851-31839-1-git-send-email-afd-l0cyMroinI0@public.gmane.org> 2016-01-25 16:37 ` [PATCH v2 2/2] gpio: Add driver for SPI serializers Andrew F. Davis 2016-01-25 16:37 ` Andrew F. Davis 2016-01-29 6:31 ` Sean Nyekjær 2016-01-29 6:31 ` Sean Nyekjær 2016-02-01 14:52 ` Andrew F. Davis 2016-02-01 14:52 ` Andrew F. Davis 2016-02-02 9:43 ` Sean Nyekjær 2016-02-02 9:43 ` Sean Nyekjær 2016-02-10 14:14 ` Linus Walleij
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