From: Christoph Muellner <christoph.muellner@theobroma-systems.com>
To: robh+dt@kernel.org, mark.rutland@arm.com, heiko@sntech.de,
shawn.lin@rock-chips.com
Cc: Christoph Muellner <christoph.muellner@theobroma-systems.com>,
Philipp Tomsich <philipp.tomsich@theobroma-systems.com>,
Kishon Vijay Abraham I <kishon@ti.com>,
Enric Balletbo i Serra <enric.balletbo@collabora.com>,
Matthias Brugger <mbrugger@suse.com>,
Brian Norris <briannorris@chromium.org>,
Klaus Goger <klaus.goger@theobroma-systems.com>,
Douglas Anderson <dianders@chromium.org>,
Viresh Kumar <viresh.kumar@linaro.org>,
Ezequiel Garcia <ezequiel@collabora.com>,
Randy Li <ayaka@soulik.info>, Tony Xie <tony.xie@rock-chips.com>,
Vicente Bergas <vicencb@gmail.com>,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-rockchip@lists.infradead.org
Subject: [PATCH v3 3/4] arm64: dts: rockchip: Define drive-impedance-ohm for RK3399's emmc-phy.
Date: Fri, 22 Mar 2019 12:34:52 +0100 [thread overview]
Message-ID: <20190322113456.16324-3-christoph.muellner@theobroma-systems.com> (raw)
In-Reply-To: <20190322113456.16324-1-christoph.muellner@theobroma-systems.com>
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@theobroma-systems.com>
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-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 db9d948c0b03..1f1f7732ae76 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
next prev parent reply other threads:[~2019-03-22 13:08 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-22 11:34 [PATCH v3 1/4] phy: rockchip-emmc: Allow to set drive impedance via DTS Christoph Muellner
2019-03-22 11:34 ` [PATCH v3 2/4] dt-bindings: phy: Add a new property drive-impedance-ohm for RK's emmc PHY Christoph Muellner
2019-03-22 11:34 ` Christoph Muellner [this message]
2019-03-27 12:46 ` [PATCH v3 3/4] arm64: dts: rockchip: Define drive-impedance-ohm for RK3399's emmc-phy Heiko Stuebner
2019-03-22 11:34 ` [PATCH v3 4/4] arm64: dts: rockchip: Decrease emmc-phy's drive impedance on rk3399-puma Christoph Muellner
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