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From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
To: Andy Gross <agross@kernel.org>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	Rob Clark <robdclark@gmail.com>, Sean Paul <sean@poorly.run>,
	Rob Herring <robh+dt@kernel.org>
Cc: Jonathan Marek <jonathan@marek.ca>,
	David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
	linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org,
	freedreno@lists.freedesktop.org, devicetree@vger.kernel.org
Subject: [PATCH v2 4/4] arm64: dts: sm8250: move bus clock to mdp node for sm8250 target
Date: Wed,  7 Apr 2021 18:01:57 +0300	[thread overview]
Message-ID: <20210407150157.801210-5-dmitry.baryshkov@linaro.org> (raw)
In-Reply-To: <20210407150157.801210-1-dmitry.baryshkov@linaro.org>

Move the bus clock to mdp device node,in order to facilitate bus band
width scaling on sm8250 target.

The parent device MDSS will not vote for bus bw, instead the vote will
be triggered by mdp device node. Since a minimum vote is required to
turn on bus clock, move the clock node to mdp device from where the
votes are requested.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 arch/arm64/boot/dts/qcom/sm8250.dtsi | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sm8250.dtsi b/arch/arm64/boot/dts/qcom/sm8250.dtsi
index 394973e778f7..60fe2eaf06c5 100644
--- a/arch/arm64/boot/dts/qcom/sm8250.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8250.dtsi
@@ -2294,10 +2294,9 @@ mdss: mdss@ae00000 {
 			power-domains = <&dispcc MDSS_GDSC>;
 
 			clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
-				 <&gcc GCC_DISP_HF_AXI_CLK>,
 				 <&gcc GCC_DISP_SF_AXI_CLK>,
 				 <&dispcc DISP_CC_MDSS_MDP_CLK>;
-			clock-names = "iface", "bus", "nrt_bus", "core";
+			clock-names = "iface", "nrt_bus", "core";
 
 			assigned-clocks = <&dispcc DISP_CC_MDSS_MDP_CLK>;
 			assigned-clock-rates = <460000000>;
-- 
2.30.2


WARNING: multiple messages have this Message-ID (diff)
From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
To: Andy Gross <agross@kernel.org>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	Rob Clark <robdclark@gmail.com>, Sean Paul <sean@poorly.run>,
	Rob Herring <robh+dt@kernel.org>
Cc: devicetree@vger.kernel.org, Jonathan Marek <jonathan@marek.ca>,
	David Airlie <airlied@linux.ie>,
	linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org,
	freedreno@lists.freedesktop.org
Subject: [PATCH v2 4/4] arm64: dts: sm8250: move bus clock to mdp node for sm8250 target
Date: Wed,  7 Apr 2021 18:01:57 +0300	[thread overview]
Message-ID: <20210407150157.801210-5-dmitry.baryshkov@linaro.org> (raw)
In-Reply-To: <20210407150157.801210-1-dmitry.baryshkov@linaro.org>

Move the bus clock to mdp device node,in order to facilitate bus band
width scaling on sm8250 target.

The parent device MDSS will not vote for bus bw, instead the vote will
be triggered by mdp device node. Since a minimum vote is required to
turn on bus clock, move the clock node to mdp device from where the
votes are requested.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 arch/arm64/boot/dts/qcom/sm8250.dtsi | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sm8250.dtsi b/arch/arm64/boot/dts/qcom/sm8250.dtsi
index 394973e778f7..60fe2eaf06c5 100644
--- a/arch/arm64/boot/dts/qcom/sm8250.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8250.dtsi
@@ -2294,10 +2294,9 @@ mdss: mdss@ae00000 {
 			power-domains = <&dispcc MDSS_GDSC>;
 
 			clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
-				 <&gcc GCC_DISP_HF_AXI_CLK>,
 				 <&gcc GCC_DISP_SF_AXI_CLK>,
 				 <&dispcc DISP_CC_MDSS_MDP_CLK>;
-			clock-names = "iface", "bus", "nrt_bus", "core";
+			clock-names = "iface", "nrt_bus", "core";
 
 			assigned-clocks = <&dispcc DISP_CC_MDSS_MDP_CLK>;
 			assigned-clock-rates = <460000000>;
-- 
2.30.2

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  parent reply	other threads:[~2021-04-07 15:02 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-07 15:01 [PATCH v2 0/4] drm/msm/dpu: always use mdp device to scale bandwidth Dmitry Baryshkov
2021-04-07 15:01 ` Dmitry Baryshkov
2021-04-07 15:01 ` [PATCH v2 1/4] drm/msm/dpu: fill missing details in hw catalog for sdm845 and sm8[12]50 Dmitry Baryshkov
2021-04-07 15:01   ` Dmitry Baryshkov
2021-04-07 15:01 ` [PATCH v2 2/4] drm/msm/dpu: always use mdp device to scale bandwidth Dmitry Baryshkov
2021-04-07 15:01   ` Dmitry Baryshkov
2021-04-07 15:01 ` [PATCH v2 3/4] arm64: dts: sdm845: move bus clock to mdp node for sdm845 target Dmitry Baryshkov
2021-04-07 15:01   ` Dmitry Baryshkov
2021-05-28 15:33   ` Dmitry Baryshkov
2021-05-28 15:33     ` Dmitry Baryshkov
2021-05-31 14:42     ` Bjorn Andersson
2021-05-31 14:42       ` Bjorn Andersson
2021-05-31 18:03       ` Dmitry Baryshkov
2021-05-31 18:03         ` Dmitry Baryshkov
2021-04-07 15:01 ` Dmitry Baryshkov [this message]
2021-04-07 15:01   ` [PATCH v2 4/4] arm64: dts: sm8250: move bus clock to mdp node for sm8250 target Dmitry Baryshkov
2021-05-31 14:58   ` Bjorn Andersson
2021-05-31 14:58     ` Bjorn Andersson
2021-05-31 17:28     ` Dmitry Baryshkov
2021-05-31 17:28       ` Dmitry Baryshkov

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