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[2620:137:e000::1:20]) by mx.google.com with ESMTP id n7-20020a6543c7000000b0050c164c8e99si29115070pgp.436.2023.03.29.05.03.14; Wed, 29 Mar 2023 05:03:45 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=xs4all.nl Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229646AbjC2L5c (ORCPT + 99 others); Wed, 29 Mar 2023 07:57:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:32868 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229502AbjC2L5a (ORCPT ); Wed, 29 Mar 2023 07:57:30 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CE73B44B4; Wed, 29 Mar 2023 04:57:03 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 8201AB822E3; Wed, 29 Mar 2023 11:56:31 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id CD3C7C433EF; Wed, 29 Mar 2023 11:56:26 +0000 (UTC) Message-ID: <1ce12330-47d9-92e6-46a5-455641e4154f@xs4all.nl> Date: Wed, 29 Mar 2023 13:56:25 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.8.0 Subject: Re: [RESEND PATCH v4 03/21] staging: media: tegra-video: fix .vidioc_enum_fmt_vid_cap to return all formats Content-Language: en-US From: Hans Verkuil To: Luca Ceresoli , Thierry Reding , Jonathan Hunter , Sowjanya Komatineni , David Airlie , Daniel Vetter , Rob Herring , Krzysztof Kozlowski , Mauro Carvalho Chehab , Greg Kroah-Hartman , Dmitry Osipenko Cc: linux-media@vger.kernel.org, linux-tegra@vger.kernel.org, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-staging@lists.linux.dev, Thomas Petazzoni , Paul Kocialkowski , Richard Leitner References: <20230309144320.2937553-1-luca.ceresoli@bootlin.com> <20230309144320.2937553-4-luca.ceresoli@bootlin.com> <85268d69-3d3b-2c0f-ba26-073f09052362@xs4all.nl> In-Reply-To: <85268d69-3d3b-2c0f-ba26-073f09052362@xs4all.nl> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-4.8 required=5.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, NICE_REPLY_A,RCVD_IN_DNSWL_HI,SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Luca, On 29/03/2023 13:16, Hans Verkuil wrote: > Hi Luca, > > I finally found the time to test this series. It looks OK, except for this patch. > The list of supported formats really has to be the intersection of what the tegra > supports and what the sensor supports. > > Otherwise you would advertise pixelformats that cannot be used, and the application > would have no way of knowing that. > > This patch needs to be dropped. > > I'll run this series through my other checks, and I will let you know today if > anything else needs to be changed. All other checks passed, so this is the only issue blocking this series from being merged. Regards, Hans > > Regards, > > Hans > > On 09/03/2023 15:43, Luca Ceresoli wrote: >> The .vidioc_enum_fmt_vid_cap (called tegra_channel_enum_format() here) >> should return all the supported formats. Instead the current implementation >> computes the intersection between the formats it supports and those >> supported by the first subdev in the stream (typically the image sensor). >> >> Remove all the unnecessary logic that supports such algorithm. In order to >> do this, also change the Tegra210 CSI TPG formats from the current >> open-coded implementation in vi_tpg_fmts_bitmap_init() to a const array in >> tegra210.c, just like the one that describes the regular formats. >> >> Fixes: 3d8a97eabef0 ("media: tegra-video: Add Tegra210 Video input driver") >> Signed-off-by: Luca Ceresoli >> Reviewed-by: Dmitry Osipenko >> >> --- >> >> Changed in v4: >> - Added review tags >> >> No changes in v3 >> No changes in v2 >> --- >> drivers/staging/media/tegra-video/tegra210.c | 7 +- >> drivers/staging/media/tegra-video/vi.c | 103 +------------------ >> drivers/staging/media/tegra-video/vi.h | 4 - >> 3 files changed, 9 insertions(+), 105 deletions(-) >> >> diff --git a/drivers/staging/media/tegra-video/tegra210.c b/drivers/staging/media/tegra-video/tegra210.c >> index d58370a84737..eb19dd5107ce 100644 >> --- a/drivers/staging/media/tegra-video/tegra210.c >> +++ b/drivers/staging/media/tegra-video/tegra210.c >> @@ -683,8 +683,12 @@ enum tegra210_image_format { >> V4L2_PIX_FMT_##FOURCC, \ >> } >> >> -/* Tegra210 supported video formats */ >> static const struct tegra_video_format tegra210_video_formats[] = { >> +#if IS_ENABLED(CONFIG_VIDEO_TEGRA_TPG) >> + /* VI only support 2 formats in TPG mode */ >> + TEGRA210_VIDEO_FMT(RAW10, 10, SRGGB10_1X10, 2, T_R16_I, SRGGB10), >> + TEGRA210_VIDEO_FMT(RGB888, 24, RGB888_1X32_PADHI, 4, T_A8B8G8R8, RGBX32), >> +#else >> /* RAW 8 */ >> TEGRA210_VIDEO_FMT(RAW8, 8, SRGGB8_1X8, 1, T_L8, SRGGB8), >> TEGRA210_VIDEO_FMT(RAW8, 8, SGRBG8_1X8, 1, T_L8, SGRBG8), >> @@ -714,6 +718,7 @@ static const struct tegra_video_format tegra210_video_formats[] = { >> TEGRA210_VIDEO_FMT(YUV422_8, 16, VYUY8_2X8, 2, T_V8_Y8__U8_Y8, YUYV), >> TEGRA210_VIDEO_FMT(YUV422_8, 16, YUYV8_2X8, 2, T_Y8_U8__Y8_V8, VYUY), >> TEGRA210_VIDEO_FMT(YUV422_8, 16, YVYU8_2X8, 2, T_Y8_V8__Y8_U8, UYVY), >> +#endif >> }; >> >> /* Tegra210 VI operations */ >> diff --git a/drivers/staging/media/tegra-video/vi.c b/drivers/staging/media/tegra-video/vi.c >> index 11dd142c98c5..9dba6e97ebdd 100644 >> --- a/drivers/staging/media/tegra-video/vi.c >> +++ b/drivers/staging/media/tegra-video/vi.c >> @@ -3,7 +3,6 @@ >> * Copyright (C) 2020 NVIDIA CORPORATION. All rights reserved. >> */ >> >> -#include >> #include >> #include >> #include >> @@ -73,15 +72,6 @@ static int tegra_get_format_idx_by_code(struct tegra_vi *vi, >> return -1; >> } >> >> -static u32 tegra_get_format_fourcc_by_idx(struct tegra_vi *vi, >> - unsigned int index) >> -{ >> - if (index >= vi->soc->nformats) >> - return -EINVAL; >> - >> - return vi->soc->video_formats[index].fourcc; >> -} >> - >> static const struct tegra_video_format * >> tegra_get_format_by_fourcc(struct tegra_vi *vi, u32 fourcc) >> { >> @@ -430,19 +420,12 @@ static int tegra_channel_enum_format(struct file *file, void *fh, >> struct v4l2_fmtdesc *f) >> { >> struct tegra_vi_channel *chan = video_drvdata(file); >> - unsigned int index = 0, i; >> - unsigned long *fmts_bitmap = chan->tpg_fmts_bitmap; >> - >> - if (!IS_ENABLED(CONFIG_VIDEO_TEGRA_TPG)) >> - fmts_bitmap = chan->fmts_bitmap; >> + const struct tegra_vi_soc *soc = chan->vi->soc; >> >> - if (f->index >= bitmap_weight(fmts_bitmap, MAX_FORMAT_NUM)) >> + if (f->index >= soc->nformats) >> return -EINVAL; >> >> - for (i = 0; i < f->index + 1; i++, index++) >> - index = find_next_bit(fmts_bitmap, MAX_FORMAT_NUM, index); >> - >> - f->pixelformat = tegra_get_format_fourcc_by_idx(chan->vi, index - 1); >> + f->pixelformat = soc->video_formats[f->index].fourcc; >> >> return 0; >> } >> @@ -1059,78 +1042,6 @@ static int tegra_channel_setup_ctrl_handler(struct tegra_vi_channel *chan) >> return 0; >> } >> >> -/* VI only support 2 formats in TPG mode */ >> -static void vi_tpg_fmts_bitmap_init(struct tegra_vi_channel *chan) >> -{ >> - int index; >> - >> - bitmap_zero(chan->tpg_fmts_bitmap, MAX_FORMAT_NUM); >> - >> - index = tegra_get_format_idx_by_code(chan->vi, >> - MEDIA_BUS_FMT_SRGGB10_1X10, 0); >> - bitmap_set(chan->tpg_fmts_bitmap, index, 1); >> - >> - index = tegra_get_format_idx_by_code(chan->vi, >> - MEDIA_BUS_FMT_RGB888_1X32_PADHI, >> - 0); >> - bitmap_set(chan->tpg_fmts_bitmap, index, 1); >> -} >> - >> -static int vi_fmts_bitmap_init(struct tegra_vi_channel *chan) >> -{ >> - int index, ret, match_code = 0; >> - struct v4l2_subdev *subdev; >> - struct v4l2_subdev_mbus_code_enum code = { >> - .which = V4L2_SUBDEV_FORMAT_ACTIVE, >> - }; >> - >> - bitmap_zero(chan->fmts_bitmap, MAX_FORMAT_NUM); >> - >> - /* >> - * Set the bitmap bits based on all the matched formats between the >> - * available media bus formats of sub-device and the pre-defined Tegra >> - * supported video formats. >> - */ >> - subdev = tegra_channel_get_remote_source_subdev(chan); >> - while (1) { >> - ret = v4l2_subdev_call(subdev, pad, enum_mbus_code, >> - NULL, &code); >> - if (ret < 0) >> - break; >> - >> - index = tegra_get_format_idx_by_code(chan->vi, code.code, 0); >> - while (index >= 0) { >> - bitmap_set(chan->fmts_bitmap, index, 1); >> - if (!match_code) >> - match_code = code.code; >> - /* look for other formats with same mbus code */ >> - index = tegra_get_format_idx_by_code(chan->vi, >> - code.code, >> - index + 1); >> - } >> - >> - code.index++; >> - } >> - >> - /* >> - * Set the bitmap bit corresponding to default tegra video format if >> - * there are no matched formats. >> - */ >> - if (!match_code) { >> - match_code = tegra_default_format.code; >> - index = tegra_get_format_idx_by_code(chan->vi, match_code, 0); >> - if (WARN_ON(index < 0)) >> - return -EINVAL; >> - >> - bitmap_set(chan->fmts_bitmap, index, 1); >> - } >> - >> - /* initialize channel format to the sub-device active format */ >> - tegra_channel_set_subdev_active_fmt(chan); >> - >> - return 0; >> -} >> - >> static void tegra_channel_host1x_syncpts_free(struct tegra_vi_channel *chan) >> { >> int i; >> @@ -1501,7 +1412,6 @@ int tegra_v4l2_nodes_setup_tpg(struct tegra_video_device *vid) >> goto cleanup; >> >> v4l2_set_subdev_hostdata(&csi_chan->subdev, vi_chan); >> - vi_tpg_fmts_bitmap_init(vi_chan); >> csi_chan = list_next_entry(csi_chan, list); >> } >> >> @@ -1721,13 +1631,6 @@ static int tegra_vi_graph_notify_complete(struct v4l2_async_notifier *notifier) >> goto unregister_video; >> } >> >> - ret = vi_fmts_bitmap_init(chan); >> - if (ret < 0) { >> - dev_err(vi->dev, >> - "failed to initialize formats bitmap: %d\n", ret); >> - goto unregister_video; >> - } >> - >> subdev = tegra_channel_get_remote_csi_subdev(chan); >> if (!subdev) { >> ret = -ENODEV; >> diff --git a/drivers/staging/media/tegra-video/vi.h b/drivers/staging/media/tegra-video/vi.h >> index a68e2c02c7b0..183796c8a46a 100644 >> --- a/drivers/staging/media/tegra-video/vi.h >> +++ b/drivers/staging/media/tegra-video/vi.h >> @@ -163,8 +163,6 @@ struct tegra_vi_graph_entity { >> * >> * @ctrl_handler: V4L2 control handler of this video channel >> * @syncpt_timeout_retry: syncpt timeout retry count for the capture >> - * @fmts_bitmap: a bitmap for supported formats matching v4l2 subdev formats >> - * @tpg_fmts_bitmap: a bitmap for supported TPG formats >> * @pg_mode: test pattern generator mode (disabled/direct/patch) >> * @notifier: V4L2 asynchronous subdevs notifier >> */ >> @@ -205,8 +203,6 @@ struct tegra_vi_channel { >> >> struct v4l2_ctrl_handler ctrl_handler; >> unsigned int syncpt_timeout_retry; >> - DECLARE_BITMAP(fmts_bitmap, MAX_FORMAT_NUM); >> - DECLARE_BITMAP(tpg_fmts_bitmap, MAX_FORMAT_NUM); >> enum tegra_vi_pg_mode pg_mode; >> >> struct v4l2_async_notifier notifier; 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