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Wed, 25 Mar 2020 02:34:56 -0400 Received: from mail-vs1-f65.google.com ([209.85.217.65]:46961 "EHLO mail-vs1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725815AbgCYGe4 (ORCPT ); Wed, 25 Mar 2020 02:34:56 -0400 Received: by mail-vs1-f65.google.com with SMTP id z125so813372vsb.13; Tue, 24 Mar 2020 23:34:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=snvaZXInR5TYHvvzgnuHJAggy00IBOf7fQ0noztQ8E4=; b=oddnZKU5NssB+gR71xQBOw2hGnN04656Bx3NAHpeILiNc8i2ylGS9fMnY2nPY0Fgfw /V0XNrvvnh7S6V5HaCLWrsXjwlEklwyk5jAuCAAG4YL8JV1cccW5RAP8EIEy/5Jxqhwa bdihFpK3cZjpy1KTPi5urAYInCGhaAYBgSSySYNtMdla7r9rT2kTFO1CJUJg49RlwTgl h+89QYgTEYbump1xooL4PFhRXAHmnKqLRkpCh8b7sKQ3LoLxZ9/9EaOlrmGo608jSrIz zlKeFrY4tSqz2kRY+H/9N4n1xxhSybMZgGiK09rPVdLqSPIWD7xt6KlCXHhS6X1I3NBy 04Fw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=snvaZXInR5TYHvvzgnuHJAggy00IBOf7fQ0noztQ8E4=; b=WgDIV904u734OQ7bbLp6or/OJ+WQqLS1LJxVx3CCwBZ8rOirxvTVDgh816GyyWwPkf tkSKX5miar2u197jindkW6U+z89u0sr8Kd2J/wLtYtKckAZ75KSEM1DQdRzNGeOkGnnJ sSLnal5xuAPnVuAbzg99ISLRoBmnYy0S07buA5umvGNr71hcYSEyJRC719d3QCe5RyLc UGPvP4JKrkgssI02wiIYxC/sRkXWYJRUWJdrzOEP/l0TZdmEycSbRJ0Xyfjvff97OB04 v3im6arj3/ajNouwPIERK3ilCUcxMKcNxfp+3yf7R/XmvqPnPxh6Dvw+iMsugFRQkaD8 X/1w== X-Gm-Message-State: ANhLgQ2u3DsxyxchKnmNAPObXsfZzrSGS1UP8ruNTXTgLCcQbUjAUhSL e/7JxFj80EocdBT4uk1NC9IAx64V4QXtBaMDbHg= X-Google-Smtp-Source: ADFU+vvwR5kUzjT5BR7CPePZ0VHwUgxxNtVvkWmwCciImo1s/lwHpeFZ/Nosapw/3p/r7QtJO6jypTwLwWXqbx8xu6k= X-Received: by 2002:a67:fad8:: with SMTP id g24mr1342780vsq.136.1585118093783; Tue, 24 Mar 2020 23:34:53 -0700 (PDT) MIME-Version: 1.0 References: <20190730184256.30338-1-helen.koike@collabora.com> <20190730184256.30338-6-helen.koike@collabora.com> <86e17716-193f-ca49-1104-9c599a667eeb@collabora.com> <20190815193511.GB5011@pendragon.ideasonboard.com> In-Reply-To: <20190815193511.GB5011@pendragon.ideasonboard.com> From: Dafna Hirschfeld Date: Wed, 25 Mar 2020 07:34:37 +0100 Message-ID: Subject: Re: [PATCH v8 05/14] media: rkisp1: add Rockchip ISP1 subdev driver To: Laurent Pinchart Cc: Hans Verkuil , Helen Koike , hans.verkuil@cisco.com, linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org, eddie.cai.linux@gmail.com, mchehab@kernel.org, heiko@sntech.de, jacob2.chen@rock-chips.com, jeffy.chen@rock-chips.com, zyc@rock-chips.com, linux-kernel@vger.kernel.org, Tomasz Figa , sakari.ailus@linux.intel.com, kernel@collabora.com, Ezequiel Garcia , Linux Media Mailing List , linux-arm-kernel@lists.infradead.org, zhengsq@rock-chips.com, Jacob Chen , Allon Huang Content-Type: text/plain; charset="UTF-8" Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org On Thu, Aug 15, 2019 at 10:17 PM Laurent Pinchart wrote: > > Hi Hans, > > On Wed, Aug 07, 2019 at 12:39:17PM +0200, Hans Verkuil wrote: > > On 8/6/19 8:51 PM, Helen Koike wrote: > > > On 7/30/19 3:42 PM, Helen Koike wrote: > > >> From: Jacob Chen > > >> > > >> Add the subdev driver for rockchip isp1. > > >> > > >> Signed-off-by: Jacob Chen > > >> Signed-off-by: Shunqian Zheng > > >> Signed-off-by: Yichong Zhong > > >> Signed-off-by: Jacob Chen > > >> Signed-off-by: Eddie Cai > > >> Signed-off-by: Jeffy Chen > > >> Signed-off-by: Allon Huang > > >> Signed-off-by: Tomasz Figa > > >> [fixed unknown entity type / switched to PIXEL_RATE] > > >> Signed-off-by: Ezequiel Garcia > > >> [update for upstream] > > >> Signed-off-by: Helen Koike > > >> > > >> --- > > >> > > >> Changes in v8: None > > >> Changes in v7: > > >> - fixed warning because of unknown entity type > > >> - fixed v4l2-compliance errors regarding rkisp1 formats, try formats > > >> and default values > > >> - fix typo riksp1/rkisp1 > > >> - redesign: remove mipi/csi subdevice, sensors connect directly to the > > >> isp subdevice in the media topology now. As a consequence, remove the > > >> hack in mipidphy_g_mbus_config() where information from the sensor was > > >> being propagated through the topology. > > >> - From the old dphy: > > >> * cache get_remote_sensor() in s_stream > > >> * use V4L2_CID_PIXEL_RATE instead of V4L2_CID_LINK_FREQ > > >> - Replace stream state with a boolean > > >> - code styling and checkpatch fixes > > >> - fix stop_stream (return after calling stop, do not reenable the stream) > > >> - fix rkisp1_isp_sd_get_selection when V4L2_SUBDEV_FORMAT_TRY is set > > >> - fix get format in output (isp_sd->out_fmt.mbus_code was being ignored) > > >> - s/intput/input > > >> - remove #define sd_to_isp_sd(_sd), add a static inline as it will be > > >> reused by the capture > > >> > > >> drivers/media/platform/rockchip/isp1/rkisp1.c | 1286 +++++++++++++++++ > > >> drivers/media/platform/rockchip/isp1/rkisp1.h | 111 ++ > > >> 2 files changed, 1397 insertions(+) > > >> create mode 100644 drivers/media/platform/rockchip/isp1/rkisp1.c > > >> create mode 100644 drivers/media/platform/rockchip/isp1/rkisp1.h > > >> > > >> diff --git a/drivers/media/platform/rockchip/isp1/rkisp1.c b/drivers/media/platform/rockchip/isp1/rkisp1.c > > >> new file mode 100644 > > >> index 000000000000..6d0c0ffb5e03 > > >> --- /dev/null > > >> +++ b/drivers/media/platform/rockchip/isp1/rkisp1.c > > >> @@ -0,0 +1,1286 @@ > > > > > > > > >> +static int rkisp1_isp_sd_get_fmt(struct v4l2_subdev *sd, > > >> + struct v4l2_subdev_pad_config *cfg, > > >> + struct v4l2_subdev_format *fmt) > > >> +{ > > >> + struct rkisp1_isp_subdev *isp_sd = sd_to_isp_sd(sd); > > >> + struct v4l2_mbus_framefmt *mf = &fmt->format; > > >> + > > >> + if ((fmt->pad != RKISP1_ISP_PAD_SINK) && > > >> + (fmt->pad != RKISP1_ISP_PAD_SOURCE_PATH)) { > > >> + fmt->format.code = MEDIA_BUS_FMT_FIXED; > > >> + /* > > >> + * NOTE: setting a format here doesn't make much sense > > >> + * but v4l2-compliance complains > > >> + */ > > >> + fmt->format.width = RKISP1_DEFAULT_WIDTH; > > >> + fmt->format.height = RKISP1_DEFAULT_HEIGHT; > > > > > > As I had mentioned to you, this is called for the isp pads connected to the > > > DMA engines for statistics and parameters (meta data). > > > > > > If I remove those, I get the following errors: > > > > > > Sub-Device ioctls (Sink Pad 1): > > > test Try VIDIOC_SUBDEV_ENUM_MBUS_CODE/FRAME_SIZE/FRAME_INTERVAL: OK > > > fail: v4l2-test-subdevs.cpp(311): fmt.width == 0 || fmt.width > 65536 > > > fail: v4l2-test-subdevs.cpp(356): checkMBusFrameFmt(node, fmt.format) > > > test Try VIDIOC_SUBDEV_G/S_FMT: FAIL > > > test Try VIDIOC_SUBDEV_G/S_SELECTION/CROP: OK > > > test Active VIDIOC_SUBDEV_ENUM_MBUS_CODE/FRAME_SIZE/FRAME_INTERVAL: OK > > > fail: v4l2-test-subdevs.cpp(311): fmt.width == 0 || fmt.width > 65536 > > > fail: v4l2-test-subdevs.cpp(356): checkMBusFrameFmt(node, fmt.format) > > > test Active VIDIOC_SUBDEV_G/S_FMT: FAIL > > > test Active VIDIOC_SUBDEV_G/S_SELECTION/CROP: OK > > > test VIDIOC_SUBDEV_G/S_FRAME_INTERVAL: OK (Not Supported) > > > > > > Here is the full log: http://ix.io/1QNt > > > > > > Is this a bug in v4l2-compliance? > > > > Yes and no :-) > > > > Currently v4l2-compliance assumes that only video is transferred over a media bus. > > But that's not the case here, and testing the code field doesn't help v4l2-compliance > > since MEDIA_BUS_FMT_FIXED is also still used by some older subdev drivers for video. > > > > I think we need a new bus format: MEDIA_BUS_FMT_FIXED_METADATA. Then v4l2-compliance > > can tell it apart from the regular fixed video bus format. > > Wouldn't a pad flag that identifies the type of data transmitted by a > pad be a better, backward-compatible option ? This could be useful for > audio as well. Hi, Can you explain what pad flag do you mean? Do you mean adding a flag in the 'MEDIA_LNK_FL_*' list ? Also, some valid value should be set to 'fmt->format.code' so with the flags solution that you suggest it should stay MEDIA_BUS_FMT_FIXED ? thanks, Dafna > > > If I do a 'git grep MEDIA_BUS_FMT_FIXED' then I see that it is also in use by vsp1 > > for histogram information, so that should also be converted to use the new FIXED_METADATA > > format, although that might be too late (there might be userspace complications). > > Yes, probably not a good idea. > > > >> + fmt->format.field = V4L2_FIELD_NONE; > > >> + return 0; > > >> + } > > >> + > > >> + if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { > > >> + mf = v4l2_subdev_get_try_format(sd, cfg, fmt->pad); > > >> + fmt->format = *mf; > > >> + return 0; > > >> + } > > >> + > > >> + if (fmt->pad == RKISP1_ISP_PAD_SINK) { > > >> + *mf = isp_sd->in_frm; > > >> + } else if (fmt->pad == RKISP1_ISP_PAD_SOURCE_PATH) { > > >> + /* format of source pad */ > > >> + *mf = isp_sd->in_frm; > > >> + mf->code = isp_sd->out_fmt.mbus_code; > > >> + /* window size of source pad */ > > >> + mf->width = isp_sd->out_crop.width; > > >> + mf->height = isp_sd->out_crop.height; > > >> + mf->quantization = isp_sd->quantization; > > >> + } > > >> + mf->field = V4L2_FIELD_NONE; > > >> + > > >> + return 0; > > >> +} > > -- > Regards, > > Laurent Pinchart