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Date: Sun, 31 May 2015 19:44:02 +1000 From: Daniel Tang <dt.tangr@...il.com> To: arm@...nel.org Cc: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, Daniel Tang <dt.tangr@...il.com> Subject: [PATCH] devicetree: Add support for I2C and related devices to TI-NSPIRE platform This patch adds device tree entries for I2C hardware to the TI-NSPIRE platforms that have it. It also adds support for the touchpad that communicates over the I2C bus. Signed-off-by: Daniel Tang <dt.tangr@...il.com> --- arch/arm/boot/dts/nspire-cx.dts | 13 +++++++++++++ arch/arm/boot/dts/nspire-tp.dts | 14 ++++++++++++++ 2 files changed, 27 insertions(+) diff --git a/arch/arm/boot/dts/nspire-cx.dts b/arch/arm/boot/dts/nspire-cx.dts index 08e0b81..e369e3b 100644 --- a/arch/arm/boot/dts/nspire-cx.dts +++ b/arch/arm/boot/dts/nspire-cx.dts @@ -104,9 +104,22 @@ #size-cells = <1>; i2c@...50000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "snps,designware-i2c"; reg = <0x90050000 0x1000>; interrupts = <20>; + + clocks = <&apb_pclk>; + + i2c-sda-falling-time-ns = <810>; + i2c-scl-falling-time-ns = <2410>; + + touchpad@20 { + compatible = "synaptics_i2c"; + reg = <0x20>; + }; }; }; }; diff --git a/arch/arm/boot/dts/nspire-tp.dts b/arch/arm/boot/dts/nspire-tp.dts index 621391c..49fb97a 100644 --- a/arch/arm/boot/dts/nspire-tp.dts +++ b/arch/arm/boot/dts/nspire-tp.dts @@ -41,4 +41,18 @@ / { model = "TI-NSPIRE Touchpad"; compatible = "ti,nspire-tp"; + + i2c@...o { + #address-cells = <1>; + #size-cells = <0>; + + compatible = "i2c-gpio"; + gpios = < &gpio 3 0 /* sda */ + &gpio 1 0 /* scl */ >; + + touchpad@20 { + compatible = "synaptics_i2c"; + reg = <0x20>; + }; + }; }; -- 2.2.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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