From mboxrd@z Thu Jan 1 00:00:00 1970 From: vigneshr@ti.com (Vignesh R) Date: Wed, 24 Aug 2016 13:28:59 +0530 Subject: [PATCH v3 2/2] ARM: dts: am335x-icev2: Add nodes for gpio-decoder In-Reply-To: <20160824075859.30979-1-vigneshr@ti.com> References: <20160824075859.30979-1-vigneshr@ti.com> Message-ID: <20160824075859.30979-3-vigneshr@ti.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org AM335x ICE board has a rotary-switch connected to PCA9536 I2C GPIO expander. The position of the rotary-switch is reflected by status of GPIO lines. Add gpio-decoder node to read these GPIO line status via gpio-decoder driver and report it as an input event to the system. Signed-off-by: Vignesh R --- v3: s/decoder,max-value/decoder-max-value arch/arm/boot/dts/am335x-icev2.dts | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/arm/boot/dts/am335x-icev2.dts b/arch/arm/boot/dts/am335x-icev2.dts index bc0190e4f10f..426022ee85c7 100644 --- a/arch/arm/boot/dts/am335x-icev2.dts +++ b/arch/arm/boot/dts/am335x-icev2.dts @@ -139,6 +139,15 @@ default-state = "off"; }; }; + gpio-decoder { + compatible = "gpio-decoder"; + gpios = <&pca9536 3 GPIO_ACTIVE_HIGH>, + <&pca9536 2 GPIO_ACTIVE_HIGH>, + <&pca9536 1 GPIO_ACTIVE_HIGH>, + <&pca9536 0 GPIO_ACTIVE_HIGH>; + linux,axis = <0>; /* ABS_X */ + decoder-max-value = <9>; + }; }; &am33xx_pinmux { -- 2.9.2