linux-kernel - Re: [PATCH v5, 28/32] drm/mediatek: add connection from OVL

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Date:   Fri, 30 Aug 2019 14:30:47 +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, 28/32] drm/mediatek: add connection from OVL_2L0 to
 RDMA0

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 add connection from OVL_2L0 to RDMA0

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 | 14 ++++++++++++++
>  1 file changed, 14 insertions(+)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
> index aa6173b..943e114 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
> @@ -33,6 +33,12 @@
>  #define DISP_REG_CONFIG_DSI_SEL			0x050
>  #define DISP_REG_CONFIG_DPI_SEL			0x064
>  
> +#define MT8183_DISP_OVL0_2L_MOUT_EN		0xf04
> +#define MT8183_DISP_PATH0_SEL_IN		0xf24
> +
> +#define OVL0_2L_MOUT_EN_DISP_PATH0			BIT(0)
> +#define DISP_PATH0_SEL_IN_OVL0_2L			0x1
> +
>  #define MT2701_DISP_MUTEX0_MOD0			0x2c
>  #define MT2701_DISP_MUTEX0_SOF0			0x30
>  
> @@ -307,6 +313,10 @@ static unsigned int mtk_ddp_mout_en(const struct mtk_mmsys_reg_data *data,
>  	} else if (cur == DDP_COMPONENT_OVL0 && next == DDP_COMPONENT_OVL_2L0) {
>  		*addr = data->ovl0_mout_en;
>  		value = OVL0_MOUT_EN_OVL0_2L;
> +	} else if (cur == DDP_COMPONENT_OVL_2L0 &&
> +		   next == DDP_COMPONENT_RDMA0) {
> +		*addr = MT8183_DISP_OVL0_2L_MOUT_EN;
> +		value = OVL0_2L_MOUT_EN_DISP_PATH0;
>  	} else {
>  		value = 0;
>  	}
> @@ -366,6 +376,10 @@ static unsigned int mtk_ddp_sel_in(const struct mtk_mmsys_reg_data *data,
>  	} else if (cur == DDP_COMPONENT_BLS && next == DDP_COMPONENT_DSI0) {
>  		*addr = DISP_REG_CONFIG_DSI_SEL;
>  		value = DSI_SEL_IN_BLS;
> +	} else if (cur == DDP_COMPONENT_OVL_2L0 &&
> +		   next == DDP_COMPONENT_RDMA0) {
> +		*addr = MT8183_DISP_PATH0_SEL_IN;
> +		value = DISP_PATH0_SEL_IN_OVL0_2L;
>  	} else {
>  		value = 0;
>  	}