From mboxrd@z Thu Jan 1 00:00:00 1970 From: Phil Reid Subject: [PATCH 2/5] dt: bindings: i2c-mux-pca954x: Add documentation for interrupt controller Date: Wed, 4 Jan 2017 17:29:54 +0800 Message-ID: <1483522197-38819-3-git-send-email-preid@electromag.com.au> References: <1483522197-38819-1-git-send-email-preid@electromag.com.au> Return-path: In-Reply-To: <1483522197-38819-1-git-send-email-preid@electromag.com.au> Sender: linux-i2c-owner@vger.kernel.org To: peda@axentia.se, wsa@the-dreams.de, robh+dt@kernel.org, mark.rutland@arm.com, preid@electromag.com.au, linux-i2c@vger.kernel.org, devicetree@vger.kernel.org List-Id: devicetree@vger.kernel.org Various muxes can aggregate multiple irq lines and provide a control register to determine the active line. Add bindings for interrupt controller support. Signed-off-by: Phil Reid --- Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.txt | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.txt b/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.txt index cf53d5f..9f7c275 100644 --- a/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.txt +++ b/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.txt @@ -19,7 +19,14 @@ Optional Properties: - i2c-mux-idle-disconnect: Boolean; if defined, forces mux to disconnect all children in idle state. This is necessary for example, if there are several multiplexers on the bus and the devices behind them use same I2C addresses. - + - interrupt-parent: Phandle for the interrupt controller that services + interrupts for this device. + - interrupts: Interrupt mapping for IRQ. + - interrupt-controller: Marks the device node as a interrupt controller. + - #interrupt-cells : Should be two. + - first cell is the pin number + - second cell is used to specify flags. + See also Documentation/devicetree/bindings/interrupt-controller/interrupts.txt Example: @@ -29,6 +36,11 @@ Example: #size-cells = <0>; reg = <0x74>; + interrupt-parent = <&ipic>; + interrupts = <17 IRQ_TYPE_LEVEL_LOW>; + interrupt-controller; + #interrupt-cells=<2>; + i2c@2 { #address-cells = <1>; #size-cells = <0>; -- 1.8.3.1