From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932815AbdCUPgo (ORCPT ); Tue, 21 Mar 2017 11:36:44 -0400 Received: from mail.free-electrons.com ([62.4.15.54]:60442 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757976AbdCUPgi (ORCPT ); Tue, 21 Mar 2017 11:36:38 -0400 From: Quentin Schulz To: dmitry.torokhov@gmail.com, robh+dt@kernel.org, mark.rutland@arm.com, maxime.ripard@free-electrons.com, wens@csie.org, lee.jones@linaro.org, linux@armlinux.org.uk, jic23@kernel.org, knaack.h@gmx.de, lars@metafoo.de, pmeerw@pmeerw.net Cc: Quentin Schulz , thomas.petazzoni@free-electrons.com, linux-input@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org, linux-sunxi@googlegroups.com, icenowy@aosc.xyz Subject: [PATCH v3 04/11] Documentation: DT: bindings: mfd: add A33 GPADC binding Date: Tue, 21 Mar 2017 16:36:04 +0100 Message-Id: <20170321153611.16228-5-quentin.schulz@free-electrons.com> X-Mailer: git-send-email 2.9.3 In-Reply-To: <20170321153611.16228-1-quentin.schulz@free-electrons.com> References: <20170321153611.16228-1-quentin.schulz@free-electrons.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch adds documentation for the A33 GPADC binding. Signed-off-by: Quentin Schulz --- v3: - fixed missing allwinner in front of compatible, - updated compatible to allwinner,sun8i-a33-ths to better reflect the datasheet's name, - updated example's DT node name and label to ths, added in v2 .../devicetree/bindings/mfd/sun4i-gpadc.txt | 59 ++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt diff --git a/Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt b/Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt new file mode 100644 index 0000000..badff36 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt @@ -0,0 +1,59 @@ +Allwinner SoCs' GPADC Device Tree bindings +------------------------------------------ +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", + - reg: mmio address range of the chip, + - #thermal-sensor-cells: shall be 0, + - #io-channel-cells: shall be 0, + +Example: + ths: ths@01c25000 { + compatible = "allwinner,sun8i-a33-ths"; + reg = <0x01c25000 0x100>; + #thermal-sensor-cells = <0>; + #io-channel-cells = <0>; + }; + +sun4i, sun5i and sun6i SoCs are also supported via the older binding: + +sun4i resistive touchscreen controller +-------------------------------------- + +Required properties: + - compatible: "allwinner,sun4i-a10-ts", "allwinner,sun5i-a13-ts" or + "allwinner,sun6i-a31-ts" + - reg: mmio address range of the chip + - interrupts: interrupt to which the chip is connected + - #thermal-sensor-cells: shall be 0 + +Optional properties: + - allwinner,ts-attached : boolean indicating that an actual touchscreen + is attached to the controller + - allwinner,tp-sensitive-adjust : integer (4 bits) + adjust sensitivity of pen down detection + between 0 (least sensitive) and 15 + (defaults to 15) + - allwinner,filter-type : integer (2 bits) + select median and averaging filter + samples used for median / averaging filter + 0: 4/2 + 1: 5/3 + 2: 8/4 + 3: 16/8 + (defaults to 1) + +Example: + + rtp: rtp@01c25000 { + compatible = "allwinner,sun4i-a10-ts"; + reg = <0x01c25000 0x100>; + interrupts = <29>; + allwinner,ts-attached; + #thermal-sensor-cells = <0>; + /* sensitive/noisy touch panel */ + allwinner,tp-sensitive-adjust = <0>; + allwinner,filter-type = <3>; + }; -- 2.9.3