linux-kernel - [PATCH v2 3/4] arm64: dts: rockchip: Define drive-impedance-ohm for RK3399's emmc-phy.

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Message-Id: <20190307084159.25236-3-christoph.muellner@theobroma-systems.com>
Date:   Thu,  7 Mar 2019 09:41:55 +0100
From:   Christoph Muellner <christoph.muellner@...obroma-systems.com>
To:     robh+dt@...nel.org, mark.rutland@....com, heiko@...ech.de,
        shawn.lin@...k-chips.com
Cc:     Christoph Muellner <christoph.muellner@...obroma-systems.com>,
        Philipp Tomsich <philipp.tomsich@...obroma-systems.com>,
        Kishon Vijay Abraham I <kishon@...com>,
        Klaus Goger <klaus.goger@...obroma-systems.com>,
        Brian Norris <briannorris@...omium.org>,
        Enric Balletbo i Serra <enric.balletbo@...labora.com>,
        Douglas Anderson <dianders@...omium.org>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Emil Renner Berthing <kernel@...il.dk>,
        Shunqian Zheng <zhengsq@...k-chips.com>,
        Vicente Bergas <vicencb@...il.com>,
        Randy Li <ayaka@...lik.info>,
        Tony Xie <tony.xie@...k-chips.com>,
        Ezequiel Garcia <ezequiel@...labora.com>,
        Lin Huang <hl@...k-chips.com>, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org
Subject: [PATCH v2 3/4] arm64: dts: rockchip: Define drive-impedance-ohm for RK3399's emmc-phy.

A previous patch introduced the property 'drive-impedance-ohm'
for the RK3399's emmc phy node. This patch sets this value
explicitly to the default value of 50 Ohm.

Signed-off-by: Christoph Muellner <christoph.muellner@...obroma-systems.com>
Signed-off-by: Philipp Tomsich <philipp.tomsich@...obroma-systems.com>
---
 arch/arm64/boot/dts/rockchip/rk3399.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
index 6cc1c9fa4ea6..b875364a7709 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
@@ -1450,6 +1450,7 @@
 			clock-names = "refclk";
 			#phy-cells = <1>;
 			resets = <&cru SRST_PCIEPHY>;
+			drive-impedance-ohm = <50>;
 			reset-names = "phy";
 			status = "disabled";
 		};
-- 
2.11.0