linux-kernel - [PATCH v2 1/2] arm64/dts/qcom/sc7280: remove assigned-clock-rate property for mdp clk

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Message-Id: <1645804670-21898-2-git-send-email-quic_vpolimer@quicinc.com>
Date:   Fri, 25 Feb 2022 21:27:49 +0530
From:   Vinod Polimera <quic_vpolimer@...cinc.com>
To:     dri-devel@...ts.freedesktop.org, linux-arm-msm@...r.kernel.org,
        freedreno@...ts.freedesktop.org, devicetree@...r.kernel.org
Cc:     Vinod Polimera <quic_vpolimer@...cinc.com>,
        linux-kernel@...r.kernel.org, robdclark@...il.com,
        dianders@...omium.org, swboyd@...omium.org,
        quic_kalyant@...cinc.com
Subject: [PATCH v2 1/2] arm64/dts/qcom/sc7280: remove assigned-clock-rate property for mdp clk

Kernel clock driver assumes that initial rate is the
max rate for that clock and was not allowing it to scale
beyond the assigned clock value.

drop the assigned clock rate property and set it
during resume sequence with max value in the opp table.

Fixes: 62fbdce91("arm64: dts: qcom: sc7280: add display dt nodes")

Signed-off-by: Vinod Polimera <quic_vpolimer@...cinc.com>
---
 arch/arm64/boot/dts/qcom/sc7280.dtsi | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
index baf1653..408cf6c 100644
--- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
@@ -2856,9 +2856,6 @@
 				      "ahb",
 				      "core";
 
-			assigned-clocks = <&dispcc DISP_CC_MDSS_MDP_CLK>;
-			assigned-clock-rates = <300000000>;
-
 			interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
 			interrupt-controller;
 			#interrupt-cells = <1>;
@@ -2892,11 +2889,9 @@
 					      "lut",
 					      "core",
 					      "vsync";
-				assigned-clocks = <&dispcc DISP_CC_MDSS_MDP_CLK>,
-						<&dispcc DISP_CC_MDSS_VSYNC_CLK>,
+				assigned-clocks = <&dispcc DISP_CC_MDSS_VSYNC_CLK>,
 						<&dispcc DISP_CC_MDSS_AHB_CLK>;
-				assigned-clock-rates = <300000000>,
-							<19200000>,
+				assigned-clock-rates = <19200000>,
 							<19200000>;
 				operating-points-v2 = <&mdp_opp_table>;
 				power-domains = <&rpmhpd SC7280_CX>;
-- 
2.7.4