linux-kernel - Re: [PATCH v5, 25/32] drm/mediatek: add connection from OVL0 to OVL

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Message-ID: <1567146027.5942.16.camel@mtksdaap41>
Date:   Fri, 30 Aug 2019 14:20:27 +0800
From:   CK Hu <ck.hu@...iatek.com>
To:     <yongqiang.niu@...iatek.com>
CC:     Philipp Zabel <p.zabel@...gutronix.de>,
        Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        "David Airlie" <airlied@...ux.ie>, Daniel Vetter <daniel@...ll.ch>,
        Mark Rutland <mark.rutland@....com>,
        <dri-devel@...ts.freedesktop.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>
Subject: Re: [PATCH v5, 25/32] drm/mediatek: add connection from OVL0 to
 OVL_2L0

Hi, Yongqiang:

On Thu, 2019-08-29 at 22:50 +0800, yongqiang.niu@...iatek.com wrote:
> From: Yongqiang Niu <yongqiang.niu@...iatek.com>
> 
> This patch add connection from OVL0 to OVL_2L0

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

> 
> Signed-off-by: Yongqiang Niu <yongqiang.niu@...iatek.com>
> ---
>  drivers/gpu/drm/mediatek/mtk_drm_ddp.c | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
> index effc24a..42a130a 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
> @@ -137,6 +137,8 @@
>  #define DPI_SEL_IN_BLS			0x0
>  #define DSI_SEL_IN_RDMA			0x1
>  
> +#define OVL0_MOUT_EN_OVL0_2L		BIT(4)
> +
>  struct mtk_disp_mutex {
>  	int id;
>  	bool claimed;
> @@ -299,6 +301,9 @@ static unsigned int mtk_ddp_mout_en(const struct mtk_mmsys_reg_data *data,
>  	} else if (cur == DDP_COMPONENT_OD1 && next == DDP_COMPONENT_RDMA1) {
>  		*addr = DISP_REG_CONFIG_DISP_OD_MOUT_EN;
>  		value = OD1_MOUT_EN_RDMA1;
> +	} else if (cur == DDP_COMPONENT_OVL0 && next == DDP_COMPONENT_OVL_2L0) {
> +		*addr = data->ovl0_mout_en;
> +		value = OVL0_MOUT_EN_OVL0_2L;
>  	} else {
>  		value = 0;
>  	}