linux-kernel - [PATCH] arm64: dts: qcom: c630: Specify UFS device reset

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Date:   Sun,  5 Apr 2020 23:00:49 -0700
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     Rob Herring <robh+dt@...nel.org>, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] arm64: dts: qcom: c630: Specify UFS device reset

On some device the reset line for the UFS memory needs to be tickled in
order for UFS to initialize properly, add this to the ufs_mem_hc node.

Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
---
 arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts b/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts
index d92a22e67b67..99f197cc0505 100644
--- a/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts
+++ b/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts
@@ -623,6 +623,8 @@ bluetooth {
 &ufs_mem_hc {
 	status = "okay";
 
+	reset-gpios = <&tlmm 150 GPIO_ACTIVE_LOW>;
+
 	vcc-supply = <&vreg_l20a_2p95>;
 	vcc-max-microamp = <600000>;
 };
-- 
2.26.0