linux-kernel - Re: [PATCH v1 5/5] clk: qcom: dispcc-sm8250: Disable link_div_clk

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Date:   Thu, 27 Oct 2022 15:40:54 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Robert Foss <robert.foss@...aro.org>, agross@...nel.org,
        bjorn.andersson@...aro.org, konrad.dybcio@...ainline.org,
        mturquette@...libre.com, sboyd@...nel.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, linux-arm-msm@...r.kernel.org,
        linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org,
        Bjorn Andersson <quic_bjorande@...cinc.com>,
        Jonathan Marek <jonathan@...ek.ca>
Subject: Re: [PATCH v1 5/5] clk: qcom: dispcc-sm8250: Disable link_div_clk_src
 for sm8150

On 27/10/2022 15:34, Robert Foss wrote:
> SM8150 does not have any of the link_div_clk_src clocks, so
> let's disable them for this SoC.
> 
> Signed-off-by: Robert Foss <robert.foss@...aro.org>
> ---
>   drivers/clk/qcom/dispcc-sm8250.c | 4 ++++
>   1 file changed, 4 insertions(+)
> 
> diff --git a/drivers/clk/qcom/dispcc-sm8250.c b/drivers/clk/qcom/dispcc-sm8250.c
> index d2aaa44ed3d4..f6f719616f63 100644
> --- a/drivers/clk/qcom/dispcc-sm8250.c
> +++ b/drivers/clk/qcom/dispcc-sm8250.c
> @@ -1289,6 +1289,10 @@ static int disp_cc_sm8250_probe(struct platform_device *pdev)
>   		disp_cc_pll1_config.config_ctl_hi1_val = 0x00000024;
>   		disp_cc_pll1_config.user_ctl_hi1_val = 0x000000D0;
>   		disp_cc_pll1_init.ops = &clk_alpha_pll_trion_ops;
> +
> +		disp_cc_sm8250_clocks[DISP_CC_MDSS_DP_LINK1_DIV_CLK_SRC] = NULL;
> +		disp_cc_sm8250_clocks[DISP_CC_MDSS_DP_LINK_DIV_CLK_SRC] = NULL;
> +		disp_cc_sm8250_clocks[DISP_CC_MDSS_EDP_LINK_DIV_CLK_SRC] = NULL;

We also have to fix link_intf clocks:

disp_cc_mdss_dp_link_intf_clk.clkr.hw.init->parent_hws[0] = 
&disp_cc_mdss_dp_link_clk_src.clkr.hw;
disp_cc_mdss_dp_link1_intf_clk.clkr.hw.init->parent_hws[0] = 
&disp_cc_mdss_dp_link1_clk_src.clkr.hw;
disp_cc_mdss_edp_link_intf_clk.clkr.hw.init->parent_hws[0] = 
&disp_cc_mdss_edp_link_clk_src.clkr.hw;



>   	} else if (of_device_is_compatible(pdev->dev.of_node, "qcom,sm8350-dispcc")) {
>   		static struct clk_rcg2 * const rcgs[] = {
>   			&disp_cc_mdss_byte0_clk_src,

-- 
With best wishes
Dmitry