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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <ada9ebdd87ef12fa0d36bd0f15df9946ed650e02.camel@mediatek.com>
Date: Wed, 20 Nov 2024 06:10:58 +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]

> +static int isp_composer_init(struct mtk_cam_device *cam)
> +{
> +	struct device *dev = cam->dev;
> +	int ret;
> +
> +	ret = rproc_boot(cam->rproc_handle);
> +	if (ret) {
> +		dev_err(dev, "failed to rproc_boot\n");
> +		return ret;
> +	}
> +
> +	ret = scp_ipi_register(cam->scp, SCP_IPI_ISP_CMD,
> +			       isp_composer_handler, cam);
> +	if (ret) {
> +		dev_err(dev, "failed to register IPI cmd\n");
> +		return ret;
> +	}
> +
> +	ret = scp_ipi_register(cam->scp, SCP_IPI_ISP_FRAME,
> +			       isp_composer_handler, cam);

SCP_IPI_ISP_CMD and SCP_IPI_ISP_FRAME use different way to handler ack.
So do not use the common function isp_composer_handler to handler different command.
Use different handler function.

Regards,
CK

> +	if (ret) {
> +		dev_err(dev, "failed to register IPI frame\n");
> +		goto unreg_ipi_cmd;
> +	}
> +
> +	return 0;
> +
> +unreg_ipi_cmd:
> +	scp_ipi_unregister(cam->scp, SCP_IPI_ISP_CMD);
> +
> +	return ret;
> +}
> +