linux-kernel - Re: [PATCH v4,2/2] drm: mediatek: Adjust the dpi output format to MT8186

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Message-ID: <8ccf007b-e411-3a56-e5aa-629264cdafee@collabora.com>
Date:   Mon, 29 Aug 2022 11:52:59 +0200
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     xinlei.lee@...iatek.com, matthias.bgg@...il.com,
        rex-bc.chen@...iatek.com, jason-jh.lin@...iatek.com,
        yongqiang.niu@...iatek.com, chunkuang.hu@...nel.org,
        p.zabel@...gutronix.de, airlied@...ux.ie, daniel@...ll.ch
Cc:     jitao.shi@...iatek.com, dri-devel@...ts.freedesktop.org,
        linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Project_Global_Chrome_Upstream_Group@...iatek.com
Subject: Re: [PATCH v4,2/2] drm: mediatek: Adjust the dpi output format to
 MT8186

Il 29/08/22 05:21, xinlei.lee@...iatek.com ha scritto:
> From: Xinlei Lee <xinlei.lee@...iatek.com>
> 
> Dpi output needs to adjust the output format to dual edge for MT8186.
> 
> Co-developed-by: Jitao Shi <jitao.shi@...iatek.com>
> Signed-off-by: Jitao Shi <jitao.shi@...iatek.com>
> Signed-off-by: Xinlei Lee <xinlei.lee@...iatek.com>
> 
> ---
>   drivers/gpu/drm/mediatek/mtk_dpi.c      | 32 +++++++++++++++++++++++++
>   drivers/gpu/drm/mediatek/mtk_dpi_regs.h |  5 ++++
>   drivers/gpu/drm/mediatek/mtk_drm_drv.c  |  2 ++
>   3 files changed, 39 insertions(+)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c
> index fb0b79704636..c23ef7deef26 100644
> --- a/drivers/gpu/drm/mediatek/mtk_dpi.c
> +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
> @@ -14,6 +14,7 @@
>   #include <linux/of_graph.h>
>   #include <linux/pinctrl/consumer.h>
>   #include <linux/platform_device.h>
> +#include <linux/soc/mediatek/mtk-mmsys.h>
>   #include <linux/types.h>
>   
>   #include <video/videomode.h>
> @@ -28,6 +29,7 @@
>   #include "mtk_disp_drv.h"
>   #include "mtk_dpi_regs.h"
>   #include "mtk_drm_ddp_comp.h"
> +#include "mtk_drm_drv.h"
>   
>   enum mtk_dpi_out_bit_num {
>   	MTK_DPI_OUT_BIT_NUM_8BITS,
> @@ -80,6 +82,7 @@ struct mtk_dpi {
>   	struct pinctrl_state *pins_dpi;
>   	u32 output_fmt;
>   	int refcount;
> +	struct device *mmsys_dev;
>   };
>   
>   static inline struct mtk_dpi *bridge_to_dpi(struct drm_bridge *b)
> @@ -133,6 +136,8 @@ struct mtk_dpi_yc_limit {
>    * @yuv422_en_bit: Enable bit of yuv422.
>    * @csc_enable_bit: Enable bit of CSC.
>    * @pixels_per_iter: Quantity of transferred pixels per iteration.
> + * @edge_cfg_in_mmsys: If the edge configuration for DPI's output needs to be
> + *		       set in MMSYS.

  * @edge_cfg_in_mmsys: Edge configuration for DPI output has to be set in MMSYS.

fits in one line and it's more immediate to read.

After which...

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>