From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2CC8138F658; Sat, 17 Oct 2026 16:24:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792254254; cv=none; b=Klt3JTBaDB6nFJ+3aLTJgC1vyMLD7lk0hiLfTPOtxGxs0+Qqgp3mGE6VJF64lZhbWIOr1SphpYG/ghvsyXVITe3N/B9f2V2tsTBQtemH9GX7Ps2EHc1Dc6Hb08cKSnSM7CBqdpAXsQQps2j/nu8JkjwJ5vj6f7n1trVn2rDBkhI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792254254; c=relaxed/simple; bh=4Q76f446N/dOyE1DrRiLIH2Gq4FG+Q/TuwMf4FxcGvc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=s/8EZtbq6Mk/49LiqgD2ZeGJBiEvZFf++c4w8Q14NT0rjd7Q2LbkO7TwmISnO6VO1C8d4OtkH6LakLxpO7IZ8ARpeq87z+G1eQNaEw4f8V2fQMpCVelci9qkOJwT+Js0m0aqtdhBadmUF00uViAuTQufI4wcqOel+IiGFyANYok= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=u7p2b3Y0; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="u7p2b3Y0" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6E0691F000C4; Sat, 17 Oct 2026 16:24:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1792254253; bh=8MhnSoX3ivITsgsuCRjQEwyMLxONcRGdT4fNqzPrSos=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=u7p2b3Y0cSNfXPBnl9qgK2yREiMxKA7ac3rh6d9AI4cjq1yfn3BFH9+RMMLpMD2Tq ZZudfvidBTQbl5dRY6M1RptIT2jGc0sjoOpXHdEuCIxOfobA9B9dUOvUI4Ohm98V9C qwnWlHgwvd5ZT97Opi9LYbmBWRsP8melL3U2Uslo= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Alain Volmat , Hans Verkuil , Sasha Levin Subject: [PATCH 6.12 379/869] media: stm32: dcmipp: replace s_stream with enable/disable_streams Date: Sat, 17 Oct 2026 17:53:40 +0200 Message-ID: <20261017160046.832659527@linuxfoundation.org> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261017160036.979869304@linuxfoundation.org> References: <20261017160036.979869304@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Alain Volmat [ Upstream commit b0f3cc70893289d0d74a1523e26d60346f747ebe ] Replace s_stream ops with enable_streams and disable_streams. At the same time, use v4l2_subdev_enable_streams and v4l2_subdev_disable_streams functions instead of direct s_stream calls. Signed-off-by: Alain Volmat Signed-off-by: Hans Verkuil Stable-dep-of: ffc8eec06378 ("media: stm32-dcmipp: Return queued buffers on start_streaming() failure") Signed-off-by: Sasha Levin --- .../st/stm32/stm32-dcmipp/dcmipp-bytecap.c | 49 ++++---- .../st/stm32/stm32-dcmipp/dcmipp-byteproc.c | 98 +++++++++------- .../st/stm32/stm32-dcmipp/dcmipp-parallel.c | 107 ++++++++++-------- 3 files changed, 139 insertions(+), 115 deletions(-) diff --git a/drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-bytecap.c b/drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-bytecap.c index b461d86bed540..2b323dd6cf6bf 100644 --- a/drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-bytecap.c +++ b/drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-bytecap.c @@ -112,6 +112,7 @@ struct dcmipp_bytecap_device { u32 sequence; struct media_pipeline pipe; struct v4l2_subdev *s_subdev; + u32 s_subdev_pad_nb; enum dcmipp_state state; @@ -337,33 +338,6 @@ static const struct v4l2_ioctl_ops dcmipp_bytecap_ioctl_ops = { .vidioc_streamoff = vb2_ioctl_streamoff, }; -static int dcmipp_pipeline_s_stream(struct dcmipp_bytecap_device *vcap, - int state) -{ - struct media_pad *pad; - int ret; - - /* - * Get source subdev - since link is IMMUTABLE, pointer is cached - * within the dcmipp_bytecap_device structure - */ - if (!vcap->s_subdev) { - pad = media_pad_remote_pad_first(&vcap->vdev.entity.pads[0]); - if (!pad || !is_media_entity_v4l2_subdev(pad->entity)) - return -EINVAL; - vcap->s_subdev = media_entity_to_v4l2_subdev(pad->entity); - } - - ret = v4l2_subdev_call(vcap->s_subdev, video, s_stream, state); - if (ret < 0) { - dev_err(vcap->dev, "failed to %s streaming (%d)\n", - state ? "start" : "stop", ret); - return ret; - } - - return 0; -} - static void dcmipp_start_capture(struct dcmipp_bytecap_device *vcap, struct dcmipp_buf *buf) { @@ -395,11 +369,24 @@ static int dcmipp_bytecap_start_streaming(struct vb2_queue *vq, struct dcmipp_bytecap_device *vcap = vb2_get_drv_priv(vq); struct media_entity *entity = &vcap->vdev.entity; struct dcmipp_buf *buf; + struct media_pad *pad; int ret; vcap->sequence = 0; memset(&vcap->count, 0, sizeof(vcap->count)); + /* + * Get source subdev - since link is IMMUTABLE, pointer is cached + * within the dcmipp_bytecap_device structure + */ + if (!vcap->s_subdev) { + pad = media_pad_remote_pad_first(&vcap->vdev.entity.pads[0]); + if (!pad || !is_media_entity_v4l2_subdev(pad->entity)) + return -EINVAL; + vcap->s_subdev = media_entity_to_v4l2_subdev(pad->entity); + vcap->s_subdev_pad_nb = pad->index; + } + ret = pm_runtime_resume_and_get(vcap->dev); if (ret < 0) { dev_err(vcap->dev, "%s: Failed to start streaming, cannot get sync (%d)\n", @@ -414,7 +401,8 @@ static int dcmipp_bytecap_start_streaming(struct vb2_queue *vq, goto err_pm_put; } - ret = dcmipp_pipeline_s_stream(vcap, 1); + ret = v4l2_subdev_enable_streams(vcap->s_subdev, + vcap->s_subdev_pad_nb, BIT_ULL(0)); if (ret) goto err_media_pipeline_stop; @@ -482,7 +470,10 @@ static void dcmipp_bytecap_stop_streaming(struct vb2_queue *vq) int ret; u32 status; - dcmipp_pipeline_s_stream(vcap, 0); + ret = v4l2_subdev_disable_streams(vcap->s_subdev, + vcap->s_subdev_pad_nb, BIT_ULL(0)); + if (ret) + dev_warn(vcap->dev, "Failed to disable stream\n"); /* Stop the media pipeline */ media_pipeline_stop(vcap->vdev.entity.pads); diff --git a/drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-byteproc.c b/drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-byteproc.c index 50500112eab9a..a19c8235af565 100644 --- a/drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-byteproc.c +++ b/drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-byteproc.c @@ -380,30 +380,19 @@ static int dcmipp_byteproc_set_selection(struct v4l2_subdev *sd, return 0; } -static const struct v4l2_subdev_pad_ops dcmipp_byteproc_pad_ops = { - .enum_mbus_code = dcmipp_byteproc_enum_mbus_code, - .enum_frame_size = dcmipp_byteproc_enum_frame_size, - .get_fmt = v4l2_subdev_get_fmt, - .set_fmt = dcmipp_byteproc_set_fmt, - .get_selection = dcmipp_byteproc_get_selection, - .set_selection = dcmipp_byteproc_set_selection, -}; - static int dcmipp_byteproc_configure_scale_crop - (struct dcmipp_byteproc_device *byteproc) + (struct dcmipp_byteproc_device *byteproc, + struct v4l2_subdev_state *state) { const struct dcmipp_byteproc_pix_map *vpix; - struct v4l2_subdev_state *state; struct v4l2_mbus_framefmt *sink_fmt; u32 hprediv, vprediv; struct v4l2_rect *compose, *crop; u32 val = 0; - state = v4l2_subdev_lock_and_get_active_state(&byteproc->sd); sink_fmt = v4l2_subdev_state_get_format(state, 0); compose = v4l2_subdev_state_get_compose(state, 0); crop = v4l2_subdev_state_get_crop(state, 1); - v4l2_subdev_unlock_state(state); /* find output format bpp */ vpix = dcmipp_byteproc_pix_map_by_code(sink_fmt->code); @@ -458,46 +447,73 @@ static int dcmipp_byteproc_configure_scale_crop return 0; } -static int dcmipp_byteproc_s_stream(struct v4l2_subdev *sd, int enable) +static int dcmipp_byteproc_enable_streams(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state, + u32 pad, u64 streams_mask) { struct dcmipp_byteproc_device *byteproc = v4l2_get_subdevdata(sd); struct v4l2_subdev *s_subdev; - struct media_pad *pad; - int ret = 0; + struct media_pad *s_pad; + int ret; /* Get source subdev */ - pad = media_pad_remote_pad_first(&sd->entity.pads[0]); - if (!pad || !is_media_entity_v4l2_subdev(pad->entity)) + s_pad = media_pad_remote_pad_first(&sd->entity.pads[0]); + if (!s_pad || !is_media_entity_v4l2_subdev(s_pad->entity)) return -EINVAL; - s_subdev = media_entity_to_v4l2_subdev(pad->entity); - - if (enable) { - ret = dcmipp_byteproc_configure_scale_crop(byteproc); - if (ret) - return ret; - - ret = v4l2_subdev_call(s_subdev, video, s_stream, enable); - if (ret < 0) { - dev_err(byteproc->dev, - "failed to start source subdev streaming (%d)\n", - ret); - return ret; - } - } else { - ret = v4l2_subdev_call(s_subdev, video, s_stream, enable); - if (ret < 0) { - dev_err(byteproc->dev, - "failed to stop source subdev streaming (%d)\n", - ret); - return ret; - } + s_subdev = media_entity_to_v4l2_subdev(s_pad->entity); + + ret = dcmipp_byteproc_configure_scale_crop(byteproc, state); + if (ret) + return ret; + + ret = v4l2_subdev_enable_streams(s_subdev, s_pad->index, BIT_ULL(0)); + if (ret < 0) { + dev_err(byteproc->dev, + "failed to start source subdev streaming (%d)\n", ret); + return ret; } return 0; } +static int dcmipp_byteproc_disable_streams(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state, + u32 pad, u64 streams_mask) +{ + struct dcmipp_byteproc_device *byteproc = v4l2_get_subdevdata(sd); + struct v4l2_subdev *s_subdev; + struct media_pad *s_pad; + int ret; + + /* Get source subdev */ + s_pad = media_pad_remote_pad_first(&sd->entity.pads[0]); + if (!s_pad || !is_media_entity_v4l2_subdev(s_pad->entity)) + return -EINVAL; + s_subdev = media_entity_to_v4l2_subdev(s_pad->entity); + + ret = v4l2_subdev_disable_streams(s_subdev, s_pad->index, BIT_ULL(0)); + if (ret < 0) { + dev_err(byteproc->dev, + "failed to start source subdev streaming (%d)\n", ret); + return ret; + } + + return 0; +} + +static const struct v4l2_subdev_pad_ops dcmipp_byteproc_pad_ops = { + .enum_mbus_code = dcmipp_byteproc_enum_mbus_code, + .enum_frame_size = dcmipp_byteproc_enum_frame_size, + .get_fmt = v4l2_subdev_get_fmt, + .set_fmt = dcmipp_byteproc_set_fmt, + .get_selection = dcmipp_byteproc_get_selection, + .set_selection = dcmipp_byteproc_set_selection, + .enable_streams = dcmipp_byteproc_enable_streams, + .disable_streams = dcmipp_byteproc_disable_streams, +}; + static const struct v4l2_subdev_video_ops dcmipp_byteproc_video_ops = { - .s_stream = dcmipp_byteproc_s_stream, + .s_stream = v4l2_subdev_s_stream_helper, }; static const struct v4l2_subdev_ops dcmipp_byteproc_ops = { diff --git a/drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-parallel.c b/drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-parallel.c index 05e8897ae37a4..823c9da336a7f 100644 --- a/drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-parallel.c +++ b/drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-parallel.c @@ -260,18 +260,11 @@ static int dcmipp_par_set_fmt(struct v4l2_subdev *sd, return 0; } -static const struct v4l2_subdev_pad_ops dcmipp_par_pad_ops = { - .enum_mbus_code = dcmipp_par_enum_mbus_code, - .enum_frame_size = dcmipp_par_enum_frame_size, - .get_fmt = v4l2_subdev_get_fmt, - .set_fmt = dcmipp_par_set_fmt, -}; - -static int dcmipp_par_configure(struct dcmipp_par_device *par) +static int dcmipp_par_configure(struct dcmipp_par_device *par, + struct v4l2_subdev_state *state) { u32 val = 0; const struct dcmipp_par_pix_map *vpix; - struct v4l2_subdev_state *state; struct v4l2_mbus_framefmt *sink_fmt; struct v4l2_mbus_framefmt *src_fmt; @@ -305,10 +298,8 @@ static int dcmipp_par_configure(struct dcmipp_par_device *par) } /* Set format */ - state = v4l2_subdev_lock_and_get_active_state(&par->sd); sink_fmt = v4l2_subdev_state_get_format(state, 0); src_fmt = v4l2_subdev_state_get_format(state, 1); - v4l2_subdev_unlock_state(state); vpix = dcmipp_par_pix_map_by_code(sink_fmt->code, src_fmt->code); if (!vpix) { @@ -327,53 +318,79 @@ static int dcmipp_par_configure(struct dcmipp_par_device *par) return 0; } -static int dcmipp_par_s_stream(struct v4l2_subdev *sd, int enable) +static int dcmipp_par_enable_streams(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state, + u32 pad, u64 streams_mask) { struct dcmipp_par_device *par = container_of(sd, struct dcmipp_par_device, sd); struct v4l2_subdev *s_subdev; - struct media_pad *pad; - int ret = 0; + struct media_pad *s_pad; + int ret; /* Get source subdev */ - pad = media_pad_remote_pad_first(&sd->entity.pads[0]); - if (!pad || !is_media_entity_v4l2_subdev(pad->entity)) + s_pad = media_pad_remote_pad_first(&sd->entity.pads[0]); + if (!s_pad || !is_media_entity_v4l2_subdev(s_pad->entity)) return -EINVAL; - s_subdev = media_entity_to_v4l2_subdev(pad->entity); - - if (enable) { - ret = dcmipp_par_configure(par); - if (ret) - return ret; - - /* Enable parallel interface */ - reg_set(par, DCMIPP_PRCR, DCMIPP_PRCR_ENABLE); - - ret = v4l2_subdev_call(s_subdev, video, s_stream, enable); - if (ret < 0) { - dev_err(par->dev, - "failed to start source subdev streaming (%d)\n", - ret); - return ret; - } - } else { - ret = v4l2_subdev_call(s_subdev, video, s_stream, enable); - if (ret < 0) { - dev_err(par->dev, - "failed to stop source subdev streaming (%d)\n", - ret); - return ret; - } + s_subdev = media_entity_to_v4l2_subdev(s_pad->entity); + + ret = dcmipp_par_configure(par, state); + if (ret) + return ret; + + /* Enable parallel interface */ + reg_set(par, DCMIPP_PRCR, DCMIPP_PRCR_ENABLE); - /* Disable parallel interface */ - reg_clear(par, DCMIPP_PRCR, DCMIPP_PRCR_ENABLE); + ret = v4l2_subdev_enable_streams(s_subdev, s_pad->index, BIT_ULL(0)); + if (ret < 0) { + dev_err(par->dev, + "failed to start source subdev streaming (%d)\n", ret); + return ret; } - return ret; + return 0; } +static int dcmipp_par_disable_streams(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state, + u32 pad, u64 streams_mask) +{ + struct dcmipp_par_device *par = + container_of(sd, struct dcmipp_par_device, sd); + struct v4l2_subdev *s_subdev; + struct media_pad *s_pad; + int ret; + + /* Get source subdev */ + s_pad = media_pad_remote_pad_first(&sd->entity.pads[0]); + if (!s_pad || !is_media_entity_v4l2_subdev(s_pad->entity)) + return -EINVAL; + s_subdev = media_entity_to_v4l2_subdev(s_pad->entity); + + ret = v4l2_subdev_disable_streams(s_subdev, s_pad->index, BIT_ULL(0)); + if (ret < 0) { + dev_err(par->dev, + "failed to stop source subdev streaming (%d)\n", ret); + return ret; + } + + /* Disable parallel interface */ + reg_clear(par, DCMIPP_PRCR, DCMIPP_PRCR_ENABLE); + + return 0; +} + +static const struct v4l2_subdev_pad_ops dcmipp_par_pad_ops = { + .enum_mbus_code = dcmipp_par_enum_mbus_code, + .enum_frame_size = dcmipp_par_enum_frame_size, + .get_fmt = v4l2_subdev_get_fmt, + .set_fmt = dcmipp_par_set_fmt, + .enable_streams = dcmipp_par_enable_streams, + .disable_streams = dcmipp_par_disable_streams, +}; + static const struct v4l2_subdev_video_ops dcmipp_par_video_ops = { - .s_stream = dcmipp_par_s_stream, + .s_stream = v4l2_subdev_s_stream_helper, }; static const struct v4l2_subdev_ops dcmipp_par_ops = { -- 2.53.0