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Message-ID: <20240510110523.12524-3-liankun.yang@mediatek.com>
Date: Fri, 10 May 2024 19:04:15 +0800
From: Liankun Yang <liankun.yang@...iatek.com>
To: <chunkuang.hu@...nel.org>, <p.zabel@...gutronix.de>, <airlied@...il.com>,
<daniel@...ll.ch>, <maarten.lankhorst@...ux.intel.com>, <mripard@...nel.org>,
<tzimmermann@...e.de>, <robh+dt@...nel.org>,
<krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>,
<chunfeng.yun@...iatek.com>, <vkoul@...nel.org>, <kishon@...nel.org>,
<matthias.bgg@...il.com>, <angelogioacchino.delregno@...labora.com>,
<jitao.shi@...iatek.com>, <mac.shen@...iatek.com>,
<liankun.yang@...iatek.com>,
<Project_Global_Chrome_Upstream_Group@...iatek.com>
CC: <dri-devel@...ts.freedesktop.org>, <linux-mediatek@...ts.infradead.org>,
<devicetree@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
<linux-kernel@...r.kernel.org>, <linux-phy@...ts.infradead.org>
Subject: [PATCH v2 2/2] Add dp PHY dt-bindings
Add dp PHY dt-bindings.
Changeds in v2:
- Add dp PHY dt-bindings.
https://patchwork.kernel.org/project/linux-mediatek/patch/
20240403040517.3279-1-liankun.yang@...iatek.com/
Signed-off-by: Liankun Yang <liankun.yang@...iatek.com>
---
.../display/mediatek/mediatek.phy-dp.yaml | 45 +++++++++++++++++++
1 file changed, 45 insertions(+)
create mode 100644 Documentation/devicetree/bindings/display/mediatek/mediatek.phy-dp.yaml
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek.phy-dp.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek.phy-dp.yaml
index 000000000000..476bc329363f
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek.phy-dp.yaml
@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/mediatek/mediatek,phy-dp.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek Display Port Controller
+
+maintainers:
+ - Mac shen <mac.shen@...iatek.com>
+ - Liankun yang <Liankun.yang@...iatek.com>
+
+description: |
+ Special settings need to be configured by MediaTek DP based on the actual
+ hardware situation. For example, when using a certain brand's docking
+ station for display projection, garbage may appear. Adjusting the specific
+ ssc value can resolve this issue.
+
+properties:
+ status: disabled
+ description: |
+ Since the DP driver has already registered the DP PHY device
+ through mtk_dp_register_phy(), so the status is disabled.
+
+ dp-ssc-setting:
+ - ssc-delta-hbr
+ description: Specific values are set based on the actual HW situation.
+
+required:
+ - status
+ - dp-ssc-setting
+
+examples:
+ - |
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ phy-dp@...00000 {
+ status = "disabled";
+ dp-ssc-setting {
+ ssc-delta-hbr = <0x01fe>;
+ }
+ };
+ };
--
2.18.0
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