linux-kernel - Re: [PATCH] arm64: dts: qcom: msm8996: Define UFS UniPro clock limits

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Date: Tue, 19 Dec 2023 14:48:51 +0100
From: Konrad Dybcio <konrad.dybcio@...aro.org>
To: Yassine Oudjana <y.oudjana@...tonmail.com>, Andy Gross
 <agross@...nel.org>, Bjorn Andersson <andersson@...nel.org>,
 Rob Herring <robh+dt@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>
Cc: Yassine Oudjana <yassine.oudjana@...il.com>,
 linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64: dts: qcom: msm8996: Define UFS UniPro clock limits

On 18.12.2023 14:39, Yassine Oudjana wrote:
> These limits were always defined as 0, but that didn't cause any issue
> since the driver had hardcoded limits. In commit b4e13e1ae95e ("scsi: ufs:
> qcom: Add multiple frequency support for MAX_CORE_CLK_1US_CYCLES") the
> hardcoded limits were removed and the driver started reading them from DT,
> causing UFS to stop working on MSM8996. Add real UniPro clock limits to fix
> UFS.
> 
> Signed-off-by: Yassine Oudjana <y.oudjana@...tonmail.com>
> ---
Fixes: 57fc67ef0d35 ("arm64: dts: qcom: msm8996: Add ufs related nodes")
Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>

Konrad