Re: [RFC PATCH V4 0/4] media: platform: Add support for Face Detection (FD) on mt8183 SoC
From: Tomasz Figa <tfiga@chromium.org>
Date: 2020-11-12 05:33:07
Also in:
linux-devicetree, linux-media, linux-mediatek
On Wed, Nov 11, 2020 at 8:51 PM Jerry-ch Chen [off-list ref] wrote:
Hi Tomasz, On Wed, 2020-07-01 at 01:19 +0800, Tomasz Figa wrote:quoted
Hi Jerry, On Tue, Jun 30, 2020 at 10:10:53PM +0800, Jerry-ch Chen wrote:quoted
Hi Tomasz, On Thu, 2020-05-21 at 18:38 +0000, Tomasz Figa wrote:quoted
Hi Jerry, On Wed, May 13, 2020 at 11:45:37PM +0200, Tomasz Figa wrote:quoted
Hi Jerry, On Fri, May 8, 2020 at 4:03 AM Jerry-ch Chen [off-list ref] wrote:quoted
Hi Laurent, Tomasz, Matthias, gentle ping for this patch set, If no new comments, I would like to send a newer version.Sorry, I still haven't had a chance to look at the series, so feel free to send a new version and I will take a look at the new one.Finally found some time to review the series. Again sorry for the delay and thanks for your patience. Some general comments: 1) The metadata format FourCC should be added in a separate patch, together with documentation for it. 2) Control IDs, structs used by the userspace, etc. should be defined in a header under include/uapi/linux. Please also check my replies to particular patches for further comments. Best regards, TomaszAppreciate for your reply, So far, I've locally created an uapi header: include/uapi/linux/mtk_fd_40.h which provides some values, control ids, and the definitions of structures that would be needed by user of mtk_fd_40 driver. In addition, I also provide a MACRO as example in comments that can extract the struct member with bit length and offset definitions(eliminate the bit-fields). Also, I would like to rename struct fd_user_output with struct mtk_fd_hw_result. I worry fd_user_output would be a confusing name.The change sounds good to me.quoted
I will add them in a separate patch in next version.Okay.quoted
I am still working on the documentation, which might be Documentation/media/uapi/v4l/pixfmt-meta-mtk-fd-40.rst. Refering the other pixfmt-*.rst files, I will try to provide the flat-table of the metadata with the structure of the mtk_fd_hw_result.Sounds good to me.quoted
I am confusing that should I remain the name with -40 in the tail of rst file?The header and documentation file names should match the driver name. I just noticed there is some inconsistency in the naming, though. The driver seems to be located under drivers/media/platform/mtk-isp/fd, but the driver name in the platform driver struct and as reported by VIDIOC_QUERYCAP seems to be "mtk-fd-4.0".quoted
Since we have many mtk-* drivers in the tree currently, I think it might make sense to consolidate them under drivers/media/platform/mediatek, similarly to drivers/media/platform/qcom or /rockchip. But it could be done later, as a follow-up. My suggestion would be to place the driver under drivers/media/platform/mtk-fd-40 and also rename the related Kconfig symbol to include the _40 suffix. What do you think?I Appreciate your comments, Sorry for the late reply. Would it be possible for me to replace the driver as drivers/media/platform/mtk_fd/mtk-fd-40?(Just like mtk-isp/isp_50)
I'm not a big fan of duplicating "mtk fd" in the path. How about just making it drivers/media/platform/mtk-fd-40? Best regards, Tomasz _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel