Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Message-ID: <8ccf007b-e411-3a56-e5aa-629264cdafee@collabora.com>
Date:   Mon, 29 Aug 2022 11:52:59 +0200
MIME-Version: 1.0
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101
 Thunderbird/91.11.0
Subject: Re: [PATCH v4,2/2] drm: mediatek: Adjust the dpi output format to
 MT8186
Content-Language: en-US
To:     xinlei.lee@mediatek.com, matthias.bgg@gmail.com,
        rex-bc.chen@mediatek.com, jason-jh.lin@mediatek.com,
        yongqiang.niu@mediatek.com, chunkuang.hu@kernel.org,
        p.zabel@pengutronix.de, airlied@linux.ie, daniel@ffwll.ch
Cc:     jitao.shi@mediatek.com, dri-devel@lists.freedesktop.org,
        linux-mediatek@lists.infradead.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        Project_Global_Chrome_Upstream_Group@mediatek.com
References: <1661743308-29120-1-git-send-email-xinlei.lee@mediatek.com>
 <1661743308-29120-3-git-send-email-xinlei.lee@mediatek.com>
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@collabora.com>
In-Reply-To: <1661743308-29120-3-git-send-email-xinlei.lee@mediatek.com>
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit
Precedence: bulk

Il 29/08/22 05:21, xinlei.lee@mediatek.com ha scritto:
> From: Xinlei Lee <xinlei.lee@mediatek.com>
> 
> Dpi output needs to adjust the output format to dual edge for MT8186.
> 
> Co-developed-by: Jitao Shi <jitao.shi@mediatek.com>
> Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
> Signed-off-by: Xinlei Lee <xinlei.lee@mediatek.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@collabora.com>