linux-kernel - Re: [PATCH V2 RESEND 3/6] clk: qcom: videocc-sm8550: Add SM8650 video clock controller

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Date: Thu, 21 Mar 2024 12:03:32 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Jagadeesh Kona <quic_jkona@...cinc.com>
Cc: Bjorn Andersson <andersson@...nel.org>, Konrad Dybcio <konrad.dybcio@...aro.org>, 
	Michael Turquette <mturquette@...libre.com>, Stephen Boyd <sboyd@...nel.org>, 
	Rob Herring <robh+dt@...nel.org>, 
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, Conor Dooley <conor+dt@...nel.org>, 
	Vladimir Zapolskiy <vladimir.zapolskiy@...aro.org>, linux-arm-msm@...r.kernel.org, 
	linux-clk@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org, Taniya Das <quic_tdas@...cinc.com>, 
	Satya Priya Kakitapalli <quic_skakitap@...cinc.com>, Ajit Pandey <quic_ajipan@...cinc.com>, 
	Imran Shaik <quic_imrashai@...cinc.com>
Subject: Re: [PATCH V2 RESEND 3/6] clk: qcom: videocc-sm8550: Add SM8650 video
 clock controller

On Thu, 21 Mar 2024 at 11:27, Jagadeesh Kona <quic_jkona@...cinc.com> wrote:
>
> Add support to the SM8650 video clock controller by extending
> the SM8550 video clock controller, which is mostly identical
> but SM8650 has few additional clocks and minor differences.
>
> Signed-off-by: Jagadeesh Kona <quic_jkona@...cinc.com>

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>



> @@ -411,6 +540,7 @@ static int video_cc_sm8550_probe(struct platform_device *pdev)
>  {
>         struct regmap *regmap;
>         int ret;
> +       u32 offset = 0x8140;

Nit: this variable seems misnamed. Please rename to something like
sleep_clk_offset;

>
>         ret = devm_pm_runtime_enable(&pdev->dev);
>         if (ret)
> @@ -426,12 +556,27 @@ static int video_cc_sm8550_probe(struct platform_device *pdev)
>                 return PTR_ERR(regmap);
>         }
>
> +       if (of_device_is_compatible(pdev->dev.of_node, "qcom,sm8650-videocc")) {
> +               offset = 0x8150;
> +               video_cc_pll0_config.l = 0x1e;
> +               video_cc_pll0_config.alpha = 0xa000;
> +               video_cc_pll1_config.l = 0x2b;
> +               video_cc_pll1_config.alpha = 0xc000;
> +               video_cc_mvs0_clk_src.freq_tbl = ftbl_video_cc_mvs0_clk_src_sm8650;
> +               video_cc_mvs1_clk_src.freq_tbl = ftbl_video_cc_mvs1_clk_src_sm8650;
> +               video_cc_sm8550_clocks[VIDEO_CC_MVS0_SHIFT_CLK] = &video_cc_mvs0_shift_clk.clkr;
> +               video_cc_sm8550_clocks[VIDEO_CC_MVS0C_SHIFT_CLK] = &video_cc_mvs0c_shift_clk.clkr;
> +               video_cc_sm8550_clocks[VIDEO_CC_MVS1_SHIFT_CLK] = &video_cc_mvs1_shift_clk.clkr;
> +               video_cc_sm8550_clocks[VIDEO_CC_MVS1C_SHIFT_CLK] = &video_cc_mvs1c_shift_clk.clkr;
> +               video_cc_sm8550_clocks[VIDEO_CC_XO_CLK_SRC] = &video_cc_xo_clk_src.clkr;
> +       }
> +
>         clk_lucid_ole_pll_configure(&video_cc_pll0, regmap, &video_cc_pll0_config);
>         clk_lucid_ole_pll_configure(&video_cc_pll1, regmap, &video_cc_pll1_config);
>
>         /* Keep some clocks always-on */
>         qcom_branch_set_clk_en(regmap, 0x80f4); /* VIDEO_CC_AHB_CLK */
> -       qcom_branch_set_clk_en(regmap, 0x8140); /* VIDEO_CC_SLEEP_CLK */
> +       qcom_branch_set_clk_en(regmap, offset); /* VIDEO_CC_SLEEP_CLK */
>         qcom_branch_set_clk_en(regmap, 0x8124); /* VIDEO_CC_XO_CLK */
>
>         ret = qcom_cc_really_probe(pdev, &video_cc_sm8550_desc, regmap);
> --
> 2.43.0
>
>


-- 
With best wishes
Dmitry