From: Rob Clark <robdclark@gmail.com>
To: Kalyan Thota <kalyan_t@codeaurora.org>
Cc: dri-devel <dri-devel@lists.freedesktop.org>,
linux-arm-msm <linux-arm-msm@vger.kernel.org>,
freedreno <freedreno@lists.freedesktop.org>,
"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
<devicetree@vger.kernel.org>,
Krishna Manikandan <mkrishn@codeaurora.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Sean Paul <seanpaul@chromium.org>,
"Kristian H. Kristensen" <hoegsberg@chromium.org>,
Douglas Anderson <dianders@chromium.org>,
Jeykumar Sankaran <jsanka@codeaurora.org>,
Raviteja Tamatam <travitej@codeaurora.org>,
nganji@codeaurora.org
Subject: Re: [PATCH 2/3] arm64: dts: sc7180: add bus clock to mdp node for sc7180 target
Date: Tue, 4 Aug 2020 08:43:54 -0700 [thread overview]
Message-ID: <CAF6AEGu8GG4i1inhjQ11PDeUxEq=4E2ggVm6cL=AfNHbvNuh6w@mail.gmail.com> (raw)
In-Reply-To: <1594899334-19772-2-git-send-email-kalyan_t@codeaurora.org>
On Thu, Jul 16, 2020 at 4:36 AM Kalyan Thota <kalyan_t@codeaurora.org> wrote:
>
> From: Krishna Manikandan <mkrishn@codeaurora.org>
>
> Move the bus clock to mdp device node,in order
> to facilitate bus band width scaling on sc7180
> 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.
>
> This patch has dependency on the below series
> https://patchwork.kernel.org/patch/11468783/
>
> Signed-off-by: Krishna Manikandan <mkrishn@codeaurora.org>
Reviewed-by: Rob Clark <robdclark@chromium.org>
> ---
> arch/arm64/boot/dts/qcom/sc7180.dtsi | 8 ++++----
> 1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi
> index 4f2c0d1..31fed6d 100644
> --- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi
> @@ -1510,10 +1510,9 @@
> power-domains = <&dispcc MDSS_GDSC>;
>
> clocks = <&gcc GCC_DISP_AHB_CLK>,
> - <&gcc GCC_DISP_HF_AXI_CLK>,
> <&dispcc DISP_CC_MDSS_AHB_CLK>,
> <&dispcc DISP_CC_MDSS_MDP_CLK>;
> - clock-names = "iface", "bus", "ahb", "core";
> + clock-names = "iface", "ahb", "core";
>
> assigned-clocks = <&dispcc DISP_CC_MDSS_MDP_CLK>;
> assigned-clock-rates = <300000000>;
> @@ -1539,12 +1538,13 @@
> <0 0x0aeb0000 0 0x2008>;
> reg-names = "mdp", "vbif";
>
> - clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
> + clocks = <&gcc GCC_DISP_HF_AXI_CLK>,
> + <&dispcc DISP_CC_MDSS_AHB_CLK>,
> <&dispcc DISP_CC_MDSS_ROT_CLK>,
> <&dispcc DISP_CC_MDSS_MDP_LUT_CLK>,
> <&dispcc DISP_CC_MDSS_MDP_CLK>,
> <&dispcc DISP_CC_MDSS_VSYNC_CLK>;
> - clock-names = "iface", "rot", "lut", "core",
> + clock-names = "bus", "iface", "rot", "lut", "core",
> "vsync";
> assigned-clocks = <&dispcc DISP_CC_MDSS_MDP_CLK>,
> <&dispcc DISP_CC_MDSS_VSYNC_CLK>;
> --
> 1.9.1
>
next prev parent reply other threads:[~2020-08-04 15:43 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-16 11:35 [PATCH 1/3] arm64: dts: sc7180: add interconnect bindings for display Kalyan Thota
2020-07-16 11:35 ` [PATCH 2/3] arm64: dts: sc7180: add bus clock to mdp node for sc7180 target Kalyan Thota
2020-08-04 15:43 ` Rob Clark [this message]
2020-09-10 22:00 ` Bjorn Andersson
2020-09-10 22:04 ` Rob Clark
2020-07-16 11:35 ` [PATCH 3/3] drm/msm/dpu: add support for clk and bw scaling for display Kalyan Thota
2020-08-04 15:40 ` Rob Clark
2020-10-27 8:32 ` Dmitry Baryshkov
2020-11-08 17:55 ` Amit Pundir
2020-08-04 15:42 ` [PATCH 1/3] arm64: dts: sc7180: add interconnect bindings " Rob Clark
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