Re: [PATCH 05/18] drm/mediatek: add ddp component CCORR

From: CK Hu <ck.hu@mediatek.com>
To: Yongqiang Niu <yongqiang.niu@mediatek.com>
Cc: Philipp Zabel <p.zabel@pengutronix.de>,
	David Airlie <airlied@linux.ie>, Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	<dri-devel@lists.freedesktop.org>, <devicetree@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-mediatek@lists.infradead.org>
Subject: Re: [PATCH 05/18] drm/mediatek: add ddp component CCORR
Date: Wed, 26 Dec 2018 13:27:10 +0800	[thread overview]
Message-ID: <1545802030.14496.25.camel@mtksdaap41> (raw)
In-Reply-To: <1545638931-24938-6-git-send-email-yongqiang.niu@mediatek.com>

Hi, Yongqiang:

On Mon, 2018-12-24 at 16:08 +0800, Yongqiang Niu wrote:
> This patch add ddp component CCORR

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

> Signed-off-by: Yongqiang Niu <yongqiang.niu@mediatek.com>
> ---
>  drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 32 +++++++++++++++++++++++++++++
>  drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h |  2 ++
>  2 files changed, 34 insertions(+)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> index 54ca794..310c0b9 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> @@ -41,6 +41,12 @@
>  #define DISP_AAL_EN				0x0000
>  #define DISP_AAL_SIZE				0x0030
>  
> +#define DISP_CCORR_EN				0x0000
> +#define CCORR_EN				BIT(0)
> +#define DISP_CCORR_CFG				0x0020
> +#define CCORR_RELAY_MODE			BIT(0)
> +#define DISP_CCORR_SIZE				0x0030
> +
>  #define DISP_GAMMA_EN				0x0000
>  #define DISP_GAMMA_CFG				0x0020
>  #define DISP_GAMMA_SIZE				0x0030
> @@ -131,6 +137,24 @@ static void mtk_aal_stop(struct mtk_ddp_comp *comp)
>  	writel_relaxed(0x0, comp->regs + DISP_AAL_EN);
>  }
>  
> +static void mtk_ccorr_config(struct mtk_ddp_comp *comp, unsigned int w,
> +			     unsigned int h, unsigned int vrefresh,
> +			     unsigned int bpc)
> +{
> +	writel(h << 16 | w, comp->regs + DISP_CCORR_SIZE);
> +	writel(CCORR_RELAY_MODE, comp->regs + DISP_CCORR_CFG);
> +}
> +
> +static void mtk_ccorr_start(struct mtk_ddp_comp *comp)
> +{
> +	writel(CCORR_EN, comp->regs + DISP_CCORR_EN);
> +}
> +
> +static void mtk_ccorr_stop(struct mtk_ddp_comp *comp)
> +{
> +	writel_relaxed(0x0, comp->regs + DISP_CCORR_EN);
> +}
> +
>  static void mtk_gamma_config(struct mtk_ddp_comp *comp, unsigned int w,
>  			     unsigned int h, unsigned int vrefresh,
>  			     unsigned int bpc)
> @@ -179,6 +203,12 @@ static void mtk_gamma_set(struct mtk_ddp_comp *comp,
>  	.stop = mtk_aal_stop,
>  };
>  
> +static const struct mtk_ddp_comp_funcs ddp_ccorr = {
> +	.config = mtk_ccorr_config,
> +	.start = mtk_ccorr_start,
> +	.stop = mtk_ccorr_stop,
> +};
> +
>  static const struct mtk_ddp_comp_funcs ddp_gamma = {
>  	.gamma_set = mtk_gamma_set,
>  	.config = mtk_gamma_config,
> @@ -200,6 +230,7 @@ static void mtk_gamma_set(struct mtk_ddp_comp *comp,
>  	[MTK_DISP_RDMA] = "rdma",
>  	[MTK_DISP_WDMA] = "wdma",
>  	[MTK_DISP_COLOR] = "color",
> +	[MTK_DISP_CCORR] = "ccorr",
>  	[MTK_DISP_AAL] = "aal",
>  	[MTK_DISP_GAMMA] = "gamma",
>  	[MTK_DISP_UFOE] = "ufoe",
> @@ -221,6 +252,7 @@ struct mtk_ddp_comp_match {
>  	[DDP_COMPONENT_AAL0]	= { MTK_DISP_AAL,	0, &ddp_aal },
>  	[DDP_COMPONENT_AAL1]	= { MTK_DISP_AAL,	1, &ddp_aal },
>  	[DDP_COMPONENT_BLS]	= { MTK_DISP_BLS,	0, NULL },
> +	[DDP_COMPONENT_CCORR]	= { MTK_DISP_CCORR,	0, &ddp_ccorr },
>  	[DDP_COMPONENT_COLOR0]	= { MTK_DISP_COLOR,	0, NULL },
>  	[DDP_COMPONENT_COLOR1]	= { MTK_DISP_COLOR,	1, NULL },
>  	[DDP_COMPONENT_DPI0]	= { MTK_DPI,		0, NULL },
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
> index 8399229..87ef290 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
> @@ -28,6 +28,7 @@ enum mtk_ddp_comp_type {
>  	MTK_DISP_RDMA,
>  	MTK_DISP_WDMA,
>  	MTK_DISP_COLOR,
> +	MTK_DISP_CCORR,
>  	MTK_DISP_AAL,
>  	MTK_DISP_GAMMA,
>  	MTK_DISP_UFOE,
> @@ -44,6 +45,7 @@ enum mtk_ddp_comp_id {
>  	DDP_COMPONENT_AAL0,
>  	DDP_COMPONENT_AAL1,
>  	DDP_COMPONENT_BLS,
> +	DDP_COMPONENT_CCORR,
>  	DDP_COMPONENT_COLOR0,
>  	DDP_COMPONENT_COLOR1,
>  	DDP_COMPONENT_DPI0,