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From: Vinod Polimera <quic_vpolimer@quicinc.com>
To: dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org,
	freedreno@lists.freedesktop.org, devicetree@vger.kernel.org
Cc: Vinod Polimera <quic_vpolimer@quicinc.com>,
	linux-kernel@vger.kernel.org, robdclark@gmail.com,
	dianders@chromium.org, swboyd@chromium.org,
	quic_kalyant@quicinc.com
Subject: [PATCH v4 4/4] arm64/dts/qcom/sm8250: remove assigned-clock-rate property for mdp clk
Date: Thu,  3 Mar 2022 15:10:01 +0530	[thread overview]
Message-ID: <1646300401-9063-5-git-send-email-quic_vpolimer@quicinc.com> (raw)
In-Reply-To: <1646300401-9063-1-git-send-email-quic_vpolimer@quicinc.com>

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 vote on the mdp clock as per
calculated value during the usecase.

Fixes: 7c1dffd471("arm64: dts: qcom: sm8250.dtsi: add display system nodes")
Signed-off-by: Vinod Polimera <quic_vpolimer@quicinc.com>
---
 arch/arm64/boot/dts/qcom/sm8250.dtsi | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sm8250.dtsi b/arch/arm64/boot/dts/qcom/sm8250.dtsi
index fdaf303..2105eb7 100644
--- a/arch/arm64/boot/dts/qcom/sm8250.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8250.dtsi
@@ -3164,9 +3164,6 @@
 				 <&dispcc DISP_CC_MDSS_MDP_CLK>;
 			clock-names = "iface", "bus", "nrt_bus", "core";
 
-			assigned-clocks = <&dispcc DISP_CC_MDSS_MDP_CLK>;
-			assigned-clock-rates = <460000000>;
-
 			interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
 			interrupt-controller;
 			#interrupt-cells = <1>;
@@ -3191,10 +3188,8 @@
 					 <&dispcc DISP_CC_MDSS_VSYNC_CLK>;
 				clock-names = "iface", "bus", "core", "vsync";
 
-				assigned-clocks = <&dispcc DISP_CC_MDSS_MDP_CLK>,
-						  <&dispcc DISP_CC_MDSS_VSYNC_CLK>;
-				assigned-clock-rates = <460000000>,
-						       <19200000>;
+				assigned-clocks = <&dispcc DISP_CC_MDSS_VSYNC_CLK>;
+				assigned-clock-rates = <19200000>;
 
 				operating-points-v2 = <&mdp_opp_table>;
 				power-domains = <&rpmhpd SM8250_MMCX>;
-- 
2.7.4


  parent reply	other threads:[~2022-03-03  9:40 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-03  9:39 [PATCH v4 0/4] Update mdp clk to max supported value to support higher refresh rates Vinod Polimera
2022-03-03  9:39 ` [PATCH v4 1/4] arm64/dts/qcom/sc7280: remove assigned-clock-rate property for mdp clk Vinod Polimera
2022-03-03 22:05   ` Stephen Boyd
2022-03-03 22:38   ` Doug Anderson
2022-03-03  9:39 ` [PATCH v4 2/4] arm64/dts/qcom/sc7180: " Vinod Polimera
2022-03-03 22:06   ` Stephen Boyd
2022-03-03  9:40 ` [PATCH v4 3/4] arm64/dts/qcom/sdm845: " Vinod Polimera
2022-03-03 22:06   ` Stephen Boyd
2022-03-03  9:40 ` Vinod Polimera [this message]
2022-03-03 22:06   ` [PATCH v4 4/4] arm64/dts/qcom/sm8250: " Stephen Boyd
2022-03-03 23:50   ` Dmitry Baryshkov
2022-03-03 23:56     ` Stephen Boyd
2022-03-04  0:15       ` Dmitry Baryshkov
2022-03-04 21:49         ` Doug Anderson
2022-03-04 22:11           ` Dmitry Baryshkov
2022-03-07 16:05             ` Vinod Polimera
2022-03-07 16:22               ` Dmitry Baryshkov

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