From mboxrd@z Thu Jan 1 00:00:00 1970 From: icenowy@aosc.io (Icenowy Zheng) Date: Sun, 2 Apr 2017 21:33:01 +0800 Subject: [RFC PATCH v2 1/4] dt-bindings: update the Allwinner GPADC device tree binding for H3 In-Reply-To: <20170402133304.56824-1-icenowy@aosc.io> References: <20170402133304.56824-1-icenowy@aosc.io> Message-ID: <20170402133304.56824-2-icenowy@aosc.io> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Allwinner H3 features a thermal sensor like the one in A33, but has its register re-arranged, the clock divider moved to CCU (originally the clock divider is in ADC) and added a pair of bus clock and reset. Update the binding document to cover H3. Signed-off-by: Icenowy Zheng --- .../devicetree/bindings/mfd/sun4i-gpadc.txt | 23 ++++++++++++++++++++-- 1 file changed, 21 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt b/Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt index badff3611a98..7753133ca0ff 100644 --- a/Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt +++ b/Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt @@ -4,12 +4,20 @@ The Allwinner SoCs all have an ADC that can also act as a thermal sensor and sometimes as a touchscreen controller. Required properties: - - compatible: "allwinner,sun8i-a33-ths", + - compatible: must contain one of the following compatibles: + - "allwinner,sun8i-a33-ths" + - "allwinner,sun8i-h3-ths" - reg: mmio address range of the chip, - #thermal-sensor-cells: shall be 0, - #io-channel-cells: shall be 0, -Example: +Required properties for the following compatibles: + - "allwinner,sun8i-h3-ths" + - clocks: the bus clock and the input clock of the ADC, + - clock-names: should be "bus" and "ths", + - resets: the bus reset of the ADC, + +Example for A33: ths: ths at 01c25000 { compatible = "allwinner,sun8i-a33-ths"; reg = <0x01c25000 0x100>; @@ -17,6 +25,17 @@ Example: #io-channel-cells = <0>; }; +Example for H3: + ths: ths at 01c25000 { + compatible = "allwinner,sun8i-h3-ths"; + reg = <0x01c25000 0x100>; + clocks = <&ccu CLK_BUS_THS>, <&ccu CLK_THS>; + clock-names = "bus", "ths"; + resets = <&ccu RST_BUS_THS>; + #thermal-sensor-cells = <0>; + #io-channel-cells = <0>; + }; + sun4i, sun5i and sun6i SoCs are also supported via the older binding: sun4i resistive touchscreen controller -- 2.12.2