linux-kernel - Re: [PATCH v1 08/10] media: platform: mediatek: add isp

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Message-ID: <6ebd023637e80bf24662975b61cd37077a251797.camel@mediatek.com>
Date: Mon, 28 Oct 2024 05:25:43 +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 08/10] media: platform: mediatek: add isp_7x state ctrl

On Mon, 2024-10-28 at 13:20 +0800, CK Hu wrote:
> Hi, Shu-hsiang:
> 
> On Wed, 2024-10-09 at 19:15 +0800, Shu-hsiang Yang wrote:
> > Introduces state management and debugging mechanisms for the MediaTek
> > ISP7.x camsys platform. State management establishes control over ISP
> > operations and events, defining distinct states for request handling,
> > sensor control, and frame synchronization, ensuring event processing.
> > The debugging mechanism ensures stable operation and timely data
> > collection during anomalies.
> > 
> > Signed-off-by: Shu-hsiang Yang <Shu-hsiang.Yang@...iatek.com>
> > ---
> 
> [snip]
> 
> > +int mtk_camsys_isr_event(struct mtk_cam_device *cam,
> > +			 enum MTK_CAMSYS_ENGINE_TYPE engine_type,
> > +			 unsigned int engine_id,
> > +			 struct mtk_camsys_irq_info *irq_info)
> > +{
> > +	int ret = 0;
> > +
> > +	switch (engine_type) {
> > +	case CAMSYS_ENGINE_RAW:
> > +		ret = mtk_camsys_event_handle_raw(cam, engine_id, irq_info);
> > +		break;
> > +	case CAMSYS_ENGINE_SENINF:

CAMSYS_ENGINE_SENINF is also never set, so drop it.

Regards,
CK

> > +		if (irq_info->irq_type & (1 << CAMSYS_IRQ_FRAME_DROP))
> 
> CAMSYS_IRQ_FRAME_DROP is never set, so drop it.
> 
> Regards,
> CK
> 
> > +			dev_info(cam->dev,
> > +				 "MTK_CAMSYS_ENGINE_SENINF_TAG engine:%d type:0x%x\n",
> > +				 engine_id, irq_info->irq_type);
> > +		break;
> > +	default:
> > +		break;
> > +	}
> > +
> > +	return ret;
> > +}
> > +