linux-kernel - Re: [PATCH v1 05/10] media: platform: mediatek: add isp

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Message-ID: <37633e814bbc45126647fe73e325b78f1c547236.camel@mediatek.com>
Date: Wed, 6 Nov 2024 07:52:47 +0000
From: CK Hu (胡俊光) <ck.hu@...iatek.com>
To: "sumit.semwal@...aro.org" <sumit.semwal@...aro.org>,
	"christian.koenig@....com" <christian.koenig@....com>, "mchehab@...nel.org"
	<mchehab@...nel.org>, "conor+dt@...nel.org" <conor+dt@...nel.org>,
	"robh@...nel.org" <robh@...nel.org>, "matthias.bgg@...il.com"
	<matthias.bgg@...il.com>, "krzk+dt@...nel.org" <krzk+dt@...nel.org>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	Shu-hsiang Yang (楊舒翔)
	<Shu-hsiang.Yang@...iatek.com>
CC: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-mediatek@...ts.infradead.org" <linux-mediatek@...ts.infradead.org>,
	"yunkec@...omium.org" <yunkec@...omium.org>, "linaro-mm-sig@...ts.linaro.org"
	<linaro-mm-sig@...ts.linaro.org>, "linux-media@...r.kernel.org"
	<linux-media@...r.kernel.org>, "devicetree@...r.kernel.org"
	<devicetree@...r.kernel.org>, Yaya Chang (張雅清)
	<Yaya.Chang@...iatek.com>, Project_Global_Chrome_Upstream_Group
	<Project_Global_Chrome_Upstream_Group@...iatek.com>,
	"dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
	Teddy Chen (陳乾元) <Teddy.Chen@...iatek.com>,
	"linux-arm-kernel@...ts.infradead.org"
	<linux-arm-kernel@...ts.infradead.org>, "hidenorik@...omium.org"
	<hidenorik@...omium.org>, Shun-Yi Wang (王順億)
	<Shun-Yi.Wang@...iatek.com>
Subject: Re: [PATCH v1 05/10] media: platform: mediatek: add isp_7x camsys
 unit

Hi, Shu-hsiang:

On Wed, 2024-10-09 at 19:15 +0800, Shu-hsiang Yang wrote:
> Introduces the top media device driver for the MediaTek ISP7X CAMSYS.
> The driver maintains the camera system, including sub-device management,
> DMA operations, and integration with the V4L2 framework. It handles
> request stream data, buffer management, and MediaTek-specific features,
> and pipeline management, streaming control, error handling mechanism.
> Additionally, it aggregates sub-drivers for the camera interface, raw
> and yuv pipelines.
> 
> Signed-off-by: Shu-hsiang Yang <Shu-hsiang.Yang@...iatek.com>
> ---

[snip]

> +/* flags of mtk_cam_request */
> +#define MTK_CAM_REQ_FLAG_SENINF_CHANGED			BIT(0)

MTK_CAM_REQ_FLAG_SENINF_CHANGED is never used, so drop it.

> +#define MTK_CAM_REQ_FLAG_SENINF_IMMEDIATE_UPDATE	BIT(1)
> +
> +/* flags of mtk_cam_request_stream_data */
> +#define MTK_CAM_REQ_S_DATA_FLAG_TG_FLASH		BIT(0)
> +
> +#define MTK_CAM_REQ_S_DATA_FLAG_META1_INDEPENDENT	BIT(1)
> +
> +#define MTK_CAM_REQ_S_DATA_FLAG_SINK_FMT_UPDATE		BIT(2)
> +/* Apply sensor mode and the timing is 1 vsync before */
> +#define MTK_CAM_REQ_S_DATA_FLAG_SENSOR_MODE_UPDATE_T1	BIT(3)

MTK_CAM_REQ_S_DATA_FLAG_SENSOR_MODE_UPDATE_T1 is useless, so drop it.

Regards,
CK

> +
> +#define MTK_CAM_REQ_S_DATA_FLAG_SENSOR_HDL_EN		BIT(4)
> +
> +#define MTK_CAM_REQ_S_DATA_FLAG_RAW_HDL_EN		BIT(5)
> +
> +#define MTK_CAM_REQ_S_DATA_FLAG_SENSOR_HDL_COMPLETE	BIT(6)
> +
> +#define MTK_CAM_REQ_S_DATA_FLAG_RAW_HDL_COMPLETE	BIT(7)
> +
> +#define MTK_CAM_REQ_S_DATA_FLAG_SENSOR_HDL_DELAYED	BIT(8)
> +