From: Chris Ruehl Date: Wed, 2 Dec 2020 08:25:07 +0000 (+0800) Subject: devicetree: phy: rockchip-emmc add output-tapdelay-select X-Git-Tag: accepted/tizen/unified/20230118.172025~8316^2~40^2~4 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=86e21677e775bcf10d676e0e93710ce17d52fdb7;p=platform%2Fkernel%2Flinux-rpi.git devicetree: phy: rockchip-emmc add output-tapdelay-select Update the rockchip-emmc-phy.txt and add the u32 property 'output-tapdelay-select'. This allow to set the otapdlysec register. Tested with our customized rk3399 board to tune eMMC. Signed-off-by: Chris Ruehl Link: https://lore.kernel.org/r/20201202082507.3536-3-chris.ruehl@gtsys.com.hk Signed-off-by: Vinod Koul --- diff --git a/Documentation/devicetree/bindings/phy/rockchip-emmc-phy.txt b/Documentation/devicetree/bindings/phy/rockchip-emmc-phy.txt index 3e4d2d7..00aa2d3 100644 --- a/Documentation/devicetree/bindings/phy/rockchip-emmc-phy.txt +++ b/Documentation/devicetree/bindings/phy/rockchip-emmc-phy.txt @@ -18,6 +18,9 @@ Optional properties: If not set, the default value of 50 will be applied. - enable-strobe-pulldown: Enable internal pull-down for the strobe line. If not set, pull-down is not used. + - output-tapdelay-select: Specifies the phyctrl_otapdlysec register. + If not set, the register defaults to 0x4. + Maximum value 0xf. Example: