Re: [PATCH v4, 24/33] drm/mediatek: distinguish ovl and ovl_2l by layer_nr

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Hi, Yongqiang:

On Tue, 2019-07-09 at 06:34 +0800, yongqiang.niu@xxxxxxxxxxxx wrote:
> From: Yongqiang Niu <yongqiang.niu@xxxxxxxxxxxx>
> 
> distinguish ovl and ovl_2l by layer_nr when get comp
> id
> 

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

> Signed-off-by: Yongqiang Niu <yongqiang.niu@xxxxxxxxxxxx>
> ---
>  drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 9 ++++++---
>  1 file changed, 6 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
> index 8ca4965..7e99827 100644
> --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
> +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
> @@ -326,7 +326,12 @@ static int mtk_disp_ovl_probe(struct platform_device *pdev)
>  	if (irq < 0)
>  		return irq;
>  
> -	comp_id = mtk_ddp_comp_get_id(dev->of_node, MTK_DISP_OVL);
> +	priv->data = of_device_get_match_data(dev);
> +
> +	comp_id = mtk_ddp_comp_get_id(dev->of_node,
> +				      priv->data->layer_nr == 4 ?
> +				      MTK_DISP_OVL :
> +				      MTK_DISP_OVL_2L);
>  	if (comp_id < 0) {
>  		dev_err(dev, "Failed to identify by alias: %d\n", comp_id);
>  		return comp_id;
> @@ -339,8 +344,6 @@ static int mtk_disp_ovl_probe(struct platform_device *pdev)
>  		return ret;
>  	}
>  
> -	priv->data = of_device_get_match_data(dev);
> -
>  	platform_set_drvdata(pdev, priv);
>  
>  	ret = devm_request_irq(dev, irq, mtk_disp_ovl_irq_handler,


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