From: Chunfeng Yun <chunfeng.yun@mediatek.com>
To: Vinod Koul <vkoul@kernel.org>
Cc: Chunfeng Yun <chunfeng.yun@mediatek.com>,
Kishon Vijay Abraham I <kishon@ti.com>,
Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
<linux-arm-kernel@lists.infradead.org>,
<linux-mediatek@lists.infradead.org>,
<linux-phy@lists.infradead.org>, <devicetree@vger.kernel.org>,
<linux-kernel@vger.kernel.org>,
Eddie Hung <eddie.hung@mediatek.com>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com>,
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Subject: [PATCH v3 2/7] dt-bindings: phy: mediatek,tphy: add property to set pre-emphasis
Date: Wed, 14 Sep 2022 14:07:41 +0800 [thread overview]
Message-ID: <20220914060746.10004-2-chunfeng.yun@mediatek.com> (raw)
In-Reply-To: <20220914060746.10004-1-chunfeng.yun@mediatek.com>
Add a property to set usb2 phy's pre-emphasis, which used to widen eye
opening and boost eye swing.
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
---
v3: add acked-by Krzysztof
v2: Add more description suggested by Krzysztof
---
.../devicetree/bindings/phy/mediatek,tphy.yaml | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/Documentation/devicetree/bindings/phy/mediatek,tphy.yaml b/Documentation/devicetree/bindings/phy/mediatek,tphy.yaml
index 848edfb1f677..e0754fb44451 100644
--- a/Documentation/devicetree/bindings/phy/mediatek,tphy.yaml
+++ b/Documentation/devicetree/bindings/phy/mediatek,tphy.yaml
@@ -219,6 +219,16 @@ patternProperties:
minimum: 1
maximum: 15
+ mediatek,pre-emphasis:
+ description:
+ The level of pre-emphasis which used to widen the eye opening and
+ boost eye swing, the unit step is about 4.16% increment; e.g. the
+ level 1 means amplitude increases about 4.16%, the level 2 is about
+ 8.3% etc. (U2 phy)
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 1
+ maximum: 3
+
mediatek,bc12:
description:
Specify the flag to enable BC1.2 if support it
--
2.18.0
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next prev parent reply other threads:[~2022-09-14 6:09 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-14 6:07 [PATCH v3 1/7] dt-bindings: phy: mediatek,tphy: add support type of SGMII Chunfeng Yun
2022-09-14 6:07 ` Chunfeng Yun [this message]
2022-09-14 6:07 ` [PATCH v3 3/7] phy: phy-mtk-tphy: add property to set pre-emphasis Chunfeng Yun
2022-09-14 7:51 ` AngeloGioacchino Del Regno
2022-09-14 6:07 ` [PATCH v3 4/7] phy: phy-mtk-tphy: disable hardware efuse when set INTR Chunfeng Yun
2022-09-14 6:07 ` [PATCH v3 5/7] phy: phy-mtk-tphy: disable gpio mode for all usb2 phys Chunfeng Yun
2022-09-14 7:50 ` AngeloGioacchino Del Regno
2022-09-14 6:07 ` [PATCH v3 6/7] phy: phy-mtk-tphy: set utmi 0 register in init() ops Chunfeng Yun
2022-09-14 7:50 ` AngeloGioacchino Del Regno
2022-09-14 6:07 ` [PATCH v3 7/7] phy: phy-mtk-tphy: fix the phy type setting issue Chunfeng Yun
2022-09-14 7:50 ` AngeloGioacchino Del Regno
2022-09-20 6:29 ` [PATCH v3 1/7] dt-bindings: phy: mediatek,tphy: add support type of SGMII Vinod Koul
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