linux-kernel - [PATCH v5 1/3] dt-bindings: pwm: add MediaTek display PWM bindings

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <1436778294-47635-2-git-send-email-yh.huang@mediatek.com>
Date:	Mon, 13 Jul 2015 17:04:52 +0800
From:	YH Huang <yh.huang@...iatek.com>
To:	Matthias Brugger <matthias.bgg@...il.com>,
	Mark Rutland <mark.rutland@....com>,
	Thierry Reding <thierry.reding@...il.com>
CC:	Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>,
	<linux-pwm@...r.kernel.org>, <devicetree@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<srv_heupstream@...iatek.com>,
	<linux-mediatek@...ts.infradead.org>,
	Sascha Hauer <kernel@...gutronix.de>,
	<yingjoe.chen@...iatek.com>, YH Huang <yh.huang@...iatek.com>
Subject: [PATCH v5 1/3] dt-bindings: pwm: add MediaTek display PWM bindings

Document the device-tree binding of MediatTek display PWM.
The PWM has one channel to control the backlight brightness for display.
It supports MT8173 and MT6595.

Signed-off-by: YH Huang <yh.huang@...iatek.com>
---
 .../devicetree/bindings/pwm/pwm-mtk-disp.txt       | 29 ++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt

diff --git a/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt b/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt
new file mode 100644
index 0000000..aac29dc
--- /dev/null
+++ b/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt
@@ -0,0 +1,29 @@
+MediaTek display PWM controller
+
+Required properties:
+ - compatible: should be "mediatek,<name>-disp-pwm":
+   - "mediatek,mt8173-disp-pwm": found on mt8173 SoC.
+   - "mediatek,mt6595-disp-pwm": found on mt6595 SoC.
+ - reg: physical base address and length of the controller's registers.
+ - #pwm-cells: must be 2. See pwm.txt in this directory for a description of
+   the cell format.
+ - clocks: phandle and clock specifier of the PWM reference clock.
+ - clock-names: must contain the following:
+   - "main": clock used to generate PWM signals.
+   - "mm": sync signals from the modules of mmsys.
+ - pinctrl-names: Must contain a "default" entry.
+ - pinctrl-0: One property must exist for each entry in pinctrl-names.
+   See pinctrl/pinctrl-bindings.txt for details of the property values.
+
+Example:
+	pwm0: pwm@...1e000 {
+		compatible = "mediatek,mt8173-disp-pwm",
+			     "mediatek,mt6595-disp-pwm";
+		reg = <0 0x1401e000 0 0x1000>;
+		#pwm-cells = <2>;
+		clocks = <&mmsys CLK_MM_DISP_PWM026M>,
+			 <&mmsys CLK_MM_DISP_PWM0MM>;
+		clock-names = "main", "mm";
+		pinctrl-names = "default";
+		pinctrl-0 = <&disp_pwm0_pins>;
+	};
-- 
1.8.1.1.dirty

--
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/