linux-kernel - Re: [PATCH v17 05/10] drm/mediatek: dp: Add multiple smc commands support

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Date:   Fri, 2 Sep 2022 15:32:14 +0800
From:   CK Hu <ck.hu@...iatek.com>
To:     Bo-Chen Chen <rex-bc.chen@...iatek.com>, <chunkuang.hu@...nel.org>,
        <p.zabel@...gutronix.de>, <daniel@...ll.ch>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <mripard@...nel.org>,
        <tzimmermann@...e.de>, <matthias.bgg@...il.com>, <deller@....de>,
        <airlied@...ux.ie>
CC:     <msp@...libre.com>, <granquet@...libre.com>,
        <jitao.shi@...iatek.com>, <wenst@...omium.org>,
        <angelogioacchino.delregno@...labora.com>,
        <liangxu.xu@...iatek.com>, <dri-devel@...ts.freedesktop.org>,
        <linux-mediatek@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-fbdev@...r.kernel.org>,
        <Project_Global_Chrome_Upstream_Group@...iatek.com>
Subject: Re: [PATCH v17 05/10] drm/mediatek: dp: Add multiple smc commands
 support

Hi, Bo-Chen:

On Thu, 2022-09-01 at 12:41 +0800, Bo-Chen Chen wrote:
> The smc commands of eDP and DP are different. We add smc_cmd to the
> device data to define them.

Reviewed-by: CK Hu <ck.hu@...iatek.com>

> 
> Signed-off-by: Bo-Chen Chen <rex-bc.chen@...iatek.com>
> ---
>  drivers/gpu/drm/mediatek/mtk_dp.c | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_dp.c
> b/drivers/gpu/drm/mediatek/mtk_dp.c
> index 2696c1ac1a47..971bd744cdb2 100644
> --- a/drivers/gpu/drm/mediatek/mtk_dp.c
> +++ b/drivers/gpu/drm/mediatek/mtk_dp.c
> @@ -112,6 +112,7 @@ struct mtk_dp {
>  
>  struct mtk_dp_data {
>  	int bridge_type;
> +	unsigned int smc_cmd;
>  };
>  static const struct mtk_dp_efuse_fmt
> mtk_dp_efuse_data[MTK_DP_CAL_MAX] = {
>  	[MTK_DP_CAL_GLB_BIAS_TRIM] = {
> @@ -945,11 +946,11 @@ static void mtk_dp_video_mute(struct mtk_dp
> *mtk_dp, bool enable)
>  			   VIDEO_MUTE_SW_DP_ENC0_P0);
>  
>  	arm_smccc_smc(MTK_DP_SIP_CONTROL_AARCH32,
> -		      MTK_DP_SIP_ATF_EDP_VIDEO_UNMUTE, enable,
> +		      mtk_dp->data->smc_cmd, enable,
>  		      0, 0, 0, 0, 0, &res);
>  
>  	dev_dbg(mtk_dp->dev, "smc cmd: 0x%x, p1: 0x%x, ret: 0x%lx-
> 0x%lx\n",
> -		MTK_DP_SIP_ATF_EDP_VIDEO_UNMUTE, enable, res.a0,
> res.a1);
> +		mtk_dp->data->smc_cmd, enable, res.a0, res.a1);
>  }
>  
>  static void mtk_dp_power_enable(struct mtk_dp *mtk_dp)
> @@ -1981,6 +1982,7 @@ static SIMPLE_DEV_PM_OPS(mtk_dp_pm_ops,
> mtk_dp_suspend, mtk_dp_resume);
>  
>  static const struct mtk_dp_data mt8195_edp_data = {
>  	.bridge_type = DRM_MODE_CONNECTOR_eDP,
> +	.smc_cmd = MTK_DP_SIP_ATF_EDP_VIDEO_UNMUTE,
>  };
>  
>  static const struct of_device_id mtk_dp_of_match[] = {