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>,
Chun-Kuang Hu <chunkuang.hu@kernel.org>,
Rob Herring <robh@kernel.org>
Subject: [PATCH v5 2/4] dt-bindings: display: mediatek: get mipitx calibration data from nvmem
Date: Fri, 10 Apr 2020 12:32:46 +0800 [thread overview]
Message-ID: <20200410043248.114384-3-jitao.shi@mediatek.com> (raw)
In-Reply-To: <20200410043248.114384-1-jitao.shi@mediatek.com>
Add properties to get get mipitx calibration data.
Reviewed-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
---
.../devicetree/bindings/display/mediatek/mediatek,dsi.txt | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.txt b/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.txt
index d78b6d6d8fab..8e4729de8c85 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.txt
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.txt
@@ -36,6 +36,9 @@ Required properties:
Optional properties:
- drive-strength-microamp: adjust driving current, should be 3000 ~ 6000. And
the step is 200.
+- nvmem-cells: A phandle to the calibration data provided by a nvmem device. If
+ unspecified default values shall be used.
+- nvmem-cell-names: Should be "calibration-data"
Example:
@@ -47,6 +50,8 @@ mipi_tx0: mipi-dphy@10215000 {
#clock-cells = <0>;
#phy-cells = <0>;
drive-strength-microamp = <4600>;
+ nvmem-cells= <&mipi_tx_calibration>;
+ nvmem-cell-names = "calibration-data";
};
dsi0: dsi@1401b000 {
--
2.21.0
next prev parent reply other threads:[~2020-04-10 4:33 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-10 4:32 [PATCH v5 0/4] Config mipi tx current and impedance Jitao Shi
2020-04-10 4:32 ` [PATCH v5 1/4] dt-bindings: display: mediatek: add property to control mipi tx drive current Jitao Shi
2020-04-10 4:32 ` Jitao Shi [this message]
2020-04-10 4:32 ` [PATCH v5 3/4] drm/mediatek: add the mipitx driving control Jitao Shi
2020-04-10 4:32 ` [PATCH v5 4/4] drm/mediatek: config mipitx impedance with calibration data Jitao Shi
2020-04-10 16:12 ` Chun-Kuang Hu
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