linux-kernel - Re: [PATCH 3/3] drm/msm/dp: Get rid of dp_ctrl_on_stream_phy_test

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <8cc1d090-3f5a-8b30-0bf2-ccb4c9eda176@quicinc.com>
Date:   Mon, 20 Jun 2022 08:23:07 -0700
From:   Kuogee Hsieh <quic_khsieh@...cinc.com>
To:     Stephen Boyd <swboyd@...omium.org>,
        Rob Clark <robdclark@...il.com>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
CC:     <linux-kernel@...r.kernel.org>, <patches@...ts.linux.dev>,
        Sean Paul <sean@...rly.run>, <dri-devel@...ts.freedesktop.org>,
        <freedreno@...ts.freedesktop.org>
Subject: Re: [PATCH 3/3] drm/msm/dp: Get rid of
 dp_ctrl_on_stream_phy_test_report()


On 6/17/2022 1:47 PM, Stephen Boyd wrote:
> This API isn't really more than a couple lines now that we don't store
> the pixel_rate to the struct member. Inline it into the caller.
>
> Cc: Kuogee Hsieh <quic_khsieh@...cinc.com>
> Signed-off-by: Stephen Boyd <swboyd@...omium.org>
Reviewed-by: Kuogee Hsieh <quic_khsieh@...cinc.com>
> ---
>   drivers/gpu/drm/msm/dp/dp_ctrl.c | 40 ++++++++++++--------------------
>   1 file changed, 15 insertions(+), 25 deletions(-)
>
> diff --git a/drivers/gpu/drm/msm/dp/dp_ctrl.c b/drivers/gpu/drm/msm/dp/dp_ctrl.c
> index e114521af2e9..d04fddb29fdf 100644
> --- a/drivers/gpu/drm/msm/dp/dp_ctrl.c
> +++ b/drivers/gpu/drm/msm/dp/dp_ctrl.c
> @@ -1582,34 +1582,15 @@ static bool dp_ctrl_send_phy_test_pattern(struct dp_ctrl_private *ctrl)
>   	return success;
>   }
>   
> -static int dp_ctrl_on_stream_phy_test_report(struct dp_ctrl *dp_ctrl)
> +static int dp_ctrl_process_phy_test_request(struct dp_ctrl_private *ctrl)
>   {
>   	int ret;
> -	struct dp_ctrl_private *ctrl;
>   	unsigned long pixel_rate;
>   
> -	ctrl = container_of(dp_ctrl, struct dp_ctrl_private, dp_ctrl);
> -
> -	pixel_rate = ctrl->panel->dp_mode.drm_mode.clock;
> -	ret = dp_ctrl_enable_stream_clocks(ctrl, pixel_rate);
> -	if (ret) {
> -		DRM_ERROR("Failed to start pixel clocks. ret=%d\n", ret);
> -		return ret;
> -	}
> -
> -	dp_ctrl_send_phy_test_pattern(ctrl);
> -
> -	return 0;
> -}
> -
> -static int dp_ctrl_process_phy_test_request(struct dp_ctrl_private *ctrl)
> -{
> -	int ret = 0;
> -
>   	if (!ctrl->link->phy_params.phy_test_pattern_sel) {
>   		drm_dbg_dp(ctrl->drm_dev,
>   			"no test pattern selected by sink\n");
> -		return ret;
> +		return 0;
>   	}
>   
>   	/*
> @@ -1624,12 +1605,21 @@ static int dp_ctrl_process_phy_test_request(struct dp_ctrl_private *ctrl)
>   	}
>   
>   	ret = dp_ctrl_on_link(&ctrl->dp_ctrl);
> -	if (!ret)
> -		ret = dp_ctrl_on_stream_phy_test_report(&ctrl->dp_ctrl);
> -	else
> +	if (ret) {
>   		DRM_ERROR("failed to enable DP link controller\n");
> +		return ret;
> +	}
>   
> -	return ret;
> +	pixel_rate = ctrl->panel->dp_mode.drm_mode.clock;
> +	ret = dp_ctrl_enable_stream_clocks(ctrl, pixel_rate);
> +	if (ret) {
> +		DRM_ERROR("Failed to start pixel clocks. ret=%d\n", ret);
> +		return ret;
> +	}
> +
> +	dp_ctrl_send_phy_test_pattern(ctrl);
> +
> +	return 0;
>   }
>   
>   void dp_ctrl_handle_sink_request(struct dp_ctrl *dp_ctrl)