Messages in this thread Patch in this message | | | From | Christoph Muellner <> | Subject | [PATCH v2 2/4] dt-bindings: phy: Add a new property drive-impedance-ohm for RK's emmc PHY | Date | Thu, 7 Mar 2019 09:41:54 +0100 |
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This patch documents the new proprty drive-impedance-ohm for Rockchip's eMMC PHY node.
Signed-off-by: Christoph Muellner <christoph.muellner@theobroma-systems.com> Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> --- Documentation/devicetree/bindings/phy/rockchip-emmc-phy.txt | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/Documentation/devicetree/bindings/phy/rockchip-emmc-phy.txt b/Documentation/devicetree/bindings/phy/rockchip-emmc-phy.txt index e3ea55763b0a..5f5d999dacc3 100644 --- a/Documentation/devicetree/bindings/phy/rockchip-emmc-phy.txt +++ b/Documentation/devicetree/bindings/phy/rockchip-emmc-phy.txt @@ -13,6 +13,9 @@ specified by name: (because most boards can get basic functionality without having access to it), it is strongly suggested. - clocks: Should have a phandle to the card clock exported by the SDHCI driver. + - drive-impedance-ohm: Specifies the drive impedance in Ohm. + Possible values are 33, 40, 50, 66 and 100. + If not set, the default value of 50 will be applied. Example: -- 2.11.0
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