linux-kernel - [PATCH v2 13/15] arm64: dts: qcom: msm8996: drop unsupported UFS vddp-ref-clk-max-microamp

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Message-Id: <20220222145854.358646-14-krzysztof.kozlowski@canonical.com>
Date:   Tue, 22 Feb 2022 15:58:52 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
To:     Alim Akhtar <alim.akhtar@...sung.com>,
        Avri Altman <avri.altman@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Wei Xu <xuwei5@...ilicon.com>, Nishanth Menon <nm@...com>,
        Vignesh Raghavendra <vigneshr@...com>,
        Tero Kristo <kristo@...nel.org>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Jan Kotas <jank@...ence.com>, Li Wei <liwei213@...wei.com>,
        Stanley Chu <stanley.chu@...iatek.com>,
        Yaniv Gardi <ygardi@...eaurora.org>,
        linux-scsi@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org,
        linux-mediatek@...ts.infradead.org
Subject: [PATCH v2 13/15] arm64: dts: qcom: msm8996: drop unsupported UFS vddp-ref-clk-max-microamp

The property vddp-ref-clk-max-microamp (for VDDP ref clk supply which is
l25 regulator) is not documented in MSM8996 UFS PHY bindings
(qcom,msm8996-qmp-ufs-phy).  It is mentioned in the other UFS PHY
bindings for qcom,msm8996-ufs-phy-qmp-14nm.

The MSM8996-based Xiaomi devices configure l25 regulator in a
conflicting way:
1. with maximum 100 uAmp for VDDP ref clk supply of UFS PHY,
2. with maximum 450 mAmp for VCCQ supply of UFS.

Since the vddp-ref-clk-max-microamp property is basically not
documented for that UFS PHY and has a conflicting values, drop it
entirely as it looks like not tested and not used ever.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
---
 arch/arm64/boot/dts/qcom/msm8996-xiaomi-common.dtsi | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/msm8996-xiaomi-common.dtsi b/arch/arm64/boot/dts/qcom/msm8996-xiaomi-common.dtsi
index 7a9fcbe9bb31..3ade756e1cd9 100644
--- a/arch/arm64/boot/dts/qcom/msm8996-xiaomi-common.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8996-xiaomi-common.dtsi
@@ -341,7 +341,6 @@ &ufsphy {
 	vdda-pll-max-microamp = <9440>;
 
 	vddp-ref-clk-supply = <&vreg_l25a_1p2>;
-	vddp-ref-clk-max-microamp = <100>;
 	vddp-ref-clk-always-on;
 };
 
-- 
2.32.0