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From: Jitao Shi <jitao.shi@mediatek.com>
To: Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Daniel Vetter <daniel@ffwll.ch>, David Airlie <airlied@linux.ie>,
	<dri-devel@lists.freedesktop.org>, <linux-kernel@vger.kernel.org>
Cc: <linux-mediatek@lists.infradead.org>,
	<devicetree@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<srv_heupstream@mediatek.com>, <yingjoe.chen@mediatek.com>,
	<eddie.huang@mediatek.com>, <cawa.cheng@mediatek.com>,
	<bibby.hsieh@mediatek.com>, <ck.hu@mediatek.com>,
	<stonea168@163.com>, <huijuan.xie@mediatek.com>,
	Jitao Shi <jitao.shi@mediatek.com>
Subject: [PATCH v11 2/6] dt-bindings: display: mediatek: control dpi pins mode to avoid leakage
Date: Fri, 28 Feb 2020 16:14:37 +0800	[thread overview]
Message-ID: <20200228081441.88179-3-jitao.shi@mediatek.com> (raw)
In-Reply-To: <20200228081441.88179-1-jitao.shi@mediatek.com>

Add property "pinctrl-names" to swap pin mode between gpio and dpi mode. Set
the dpi pins to gpio mode and output-low to avoid leakage current when dpi
disabled.

Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
---
 .../devicetree/bindings/display/mediatek/mediatek,dpi.txt  | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.txt b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.txt
index 58914cf681b8..77ca32a32399 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.txt
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.txt
@@ -17,6 +17,10 @@ Required properties:
   Documentation/devicetree/bindings/graph.txt. This port should be connected
   to the input port of an attached HDMI or LVDS encoder chip.
 
+Optional properties:
+- pinctrl-names: Contain "gpiomode" and "dpimode".
+  pinctrl-names see Documentation/devicetree/bindings/pinctrlpinctrl-bindings.txt
+
 Example:
 
 dpi0: dpi@1401d000 {
@@ -27,6 +31,9 @@ dpi0: dpi@1401d000 {
 		 <&mmsys CLK_MM_DPI_ENGINE>,
 		 <&apmixedsys CLK_APMIXED_TVDPLL>;
 	clock-names = "pixel", "engine", "pll";
+	pinctrl-names = "active", "idle";
+	pinctrl-0 = <&dpi_pin_func>;
+	pinctrl-1 = <&dpi_pin_idle>;
 
 	port {
 		dpi0_out: endpoint {
-- 
2.21.0

  parent reply	other threads:[~2020-02-28  8:16 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-28  8:14 [PATCH v11 0/6] mt8183 dpi supports dual edge and pin mode swap Jitao Shi
2020-02-28  8:14 ` [PATCH v11 1/6] dt-bindings: media: add pclk-sample dual edge property Jitao Shi
2020-02-28  8:14 ` Jitao Shi [this message]
2020-03-02 23:29   ` [PATCH v11 2/6] dt-bindings: display: mediatek: control dpi pins mode to avoid leakage Rob Herring
2020-03-02 23:38     ` Rob Herring
2020-02-28  8:14 ` [PATCH v11 3/6] dt-bindings: display: mediatek: dpi sample data in dual edge support Jitao Shi
2020-03-02 23:29   ` Rob Herring
2020-02-28  8:14 ` [PATCH v11 4/6] dt-bindings: display: mediatek: convert the document format from txt to yaml Jitao Shi
2020-03-02 23:37   ` Rob Herring
2020-02-28  8:14 ` [PATCH v11 5/6] drm/mediatek: dpi sample mode support Jitao Shi
2020-02-28  8:14 ` [PATCH v11 6/6] drm/mediatek: set dpi pin mode to gpio low to avoid leakage current Jitao Shi

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