RE: [PATCH v2 0/4] Add Toshiba Visconti AFFINE image processing accelerator driver

2022-04-27 Thread yuji2.ishikawa
ts.infradead.org; linux-ker...@vger.kernel.org; > linux-me...@vger.kernel.org; dri-devel@lists.freedesktop.org; > linaro-mm-...@lists.linaro.org > Subject: Re: [PATCH v2 0/4] Add Toshiba Visconti AFFINE image processing > accelerator driver > > Hi Yuji, > > Thank you for the

Re: [PATCH v2 0/4] Add Toshiba Visconti AFFINE image processing accelerator driver

2022-04-27 Thread Laurent Pinchart
Hi Yuji, Thank you for the patch. It's nice to see contributions from Toshiba in the image acceleration domain :-) I'll start with a high-level question before diving into detailed review. Why is this implemented in drivers/soc/ with a custom userspace API, and not as a V4L2 memory-to-memory