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Mon, 18 May 2026 10:25:01 +0000 (UTC) From: Paul Kocialkowski To: linux-media@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org, linux-staging@lists.linux.dev Cc: Paul Kocialkowski , Mauro Carvalho Chehab , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Greg Kroah-Hartman , Arash Golgol , Laurent Pinchart , Nicolas Dufresne Subject: [PATCH 14/16] media: sun6i-isp: Use V4L2 subdev active state Date: Mon, 18 May 2026 12:24:49 +0200 Message-ID: <20260518102451.417971-15-paulk@sys-base.io> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260518102451.417971-1-paulk@sys-base.io> References: <20260518102451.417971-1-paulk@sys-base.io> Precedence: bulk X-Mailing-List: linux-sunxi@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Rspamd-Server: rspamd-worker-8404 X-Spamd-Result: default: False [-0.66 / 15.00]; BAYES_HAM(-5.50)[100.00%]; RBL_SENDERSCORE(2.00)[104.64.211.4:from]; SUSPICIOUS_RECIPS(1.50)[]; 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Signed-off-by: Paul Kocialkowski Tested-by: Arash Golgol Reviewed-by: Arash Golgol --- .../media/sunxi/sun6i-isp/sun6i_isp_capture.c | 16 ++- .../media/sunxi/sun6i-isp/sun6i_isp_params.c | 18 ++- .../media/sunxi/sun6i-isp/sun6i_isp_params.h | 4 +- .../media/sunxi/sun6i-isp/sun6i_isp_proc.c | 117 ++++++++---------- .../media/sunxi/sun6i-isp/sun6i_isp_proc.h | 7 -- 5 files changed, 82 insertions(+), 80 deletions(-) diff --git a/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_capture.c b/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_capture.c index e7b99cee63d6..24e731bcabe9 100644 --- a/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_capture.c +++ b/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_capture.c @@ -595,11 +595,25 @@ static int sun6i_isp_capture_link_validate(struct media_link *link) media_entity_to_video_device(link->sink->entity); struct sun6i_isp_device *isp_dev = video_get_drvdata(video_dev); struct v4l2_device *v4l2_dev = &isp_dev->v4l2.v4l2_dev; + struct v4l2_subdev *proc_subdev = + media_entity_to_v4l2_subdev(link->source->entity); unsigned int capture_width, capture_height; unsigned int proc_width, proc_height; + struct v4l2_subdev_format proc_subdev_format = { + .which = V4L2_SUBDEV_FORMAT_ACTIVE, + .pad = link->source->index, + }; + int ret; sun6i_isp_capture_dimensions(isp_dev, &capture_width, &capture_height); - sun6i_isp_proc_dimensions(isp_dev, &proc_width, &proc_height); + + ret = v4l2_subdev_call(proc_subdev, pad, get_fmt, NULL, + &proc_subdev_format); + if (ret) + return ret; + + proc_width = proc_subdev_format.format.width; + proc_height = proc_subdev_format.format.height; /* No cropping/scaling is supported (yet). */ if (capture_width != proc_width || capture_height != proc_height) { diff --git a/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_params.c b/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_params.c index b7ef33fa2b13..0cc48e2bc8c6 100644 --- a/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_params.c +++ b/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_params.c @@ -43,11 +43,14 @@ static const struct sun6i_isp_params_config sun6i_isp_params_config_default = { }, }; -static void sun6i_isp_params_configure_ob(struct sun6i_isp_device *isp_dev) +static void +sun6i_isp_params_configure_ob(struct sun6i_isp_device *isp_dev, + const struct v4l2_mbus_framefmt *mbus_format) { unsigned int width, height; - sun6i_isp_proc_dimensions(isp_dev, &width, &height); + width = mbus_format->width; + height = mbus_format->height; sun6i_isp_load_write(isp_dev, SUN6I_ISP_OB_SIZE_REG, SUN6I_ISP_OB_SIZE_WIDTH(width) | @@ -112,10 +115,12 @@ static void sun6i_isp_params_configure_wb(struct sun6i_isp_device *isp_dev) SUN6I_ISP_WB_CFG_CLIP(0xfff)); } -static void sun6i_isp_params_configure_base(struct sun6i_isp_device *isp_dev) +static void +sun6i_isp_params_configure_base(struct sun6i_isp_device *isp_dev, + const struct v4l2_mbus_framefmt *mbus_format) { sun6i_isp_params_configure_ae(isp_dev); - sun6i_isp_params_configure_ob(isp_dev); + sun6i_isp_params_configure_ob(isp_dev, mbus_format); sun6i_isp_params_configure_wb(isp_dev); } @@ -170,14 +175,15 @@ sun6i_isp_params_configure_modules(struct sun6i_isp_device *isp_dev, sun6i_isp_load_write(isp_dev, SUN6I_ISP_MODULE_EN_REG, value); } -void sun6i_isp_params_configure(struct sun6i_isp_device *isp_dev) +void sun6i_isp_params_configure(struct sun6i_isp_device *isp_dev, + const struct v4l2_mbus_framefmt *mbus_format) { struct sun6i_isp_params_state *state = &isp_dev->params.state; unsigned long flags; spin_lock_irqsave(&state->lock, flags); - sun6i_isp_params_configure_base(isp_dev); + sun6i_isp_params_configure_base(isp_dev, mbus_format); /* Default config is only applied at the very first stream start. */ if (state->configured) diff --git a/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_params.h b/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_params.h index 50f10f879c42..c0d6cff95d54 100644 --- a/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_params.h +++ b/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_params.h @@ -36,8 +36,8 @@ struct sun6i_isp_params { /* Params */ -void sun6i_isp_params_configure(struct sun6i_isp_device *isp_dev); - +void sun6i_isp_params_configure(struct sun6i_isp_device *isp_dev, + const struct v4l2_mbus_framefmt *mbus_format); /* State */ void sun6i_isp_params_state_update(struct sun6i_isp_device *isp_dev, diff --git a/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_proc.c b/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_proc.c index 46a334b602f1..9073a7f3f8c8 100644 --- a/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_proc.c +++ b/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_proc.c @@ -15,17 +15,6 @@ #include "sun6i_isp_proc.h" #include "sun6i_isp_reg.h" -/* Helpers */ - -void sun6i_isp_proc_dimensions(struct sun6i_isp_device *isp_dev, - unsigned int *width, unsigned int *height) -{ - if (width) - *width = isp_dev->proc.mbus_format.width; - if (height) - *height = isp_dev->proc.mbus_format.height; -} - /* Format */ static const struct sun6i_isp_proc_format sun6i_isp_proc_formats[] = { @@ -137,9 +126,10 @@ static void sun6i_isp_proc_disable(struct sun6i_isp_device *isp_dev) regmap_write(regmap, SUN6I_ISP_FE_CFG_REG, 0); } -static void sun6i_isp_proc_configure(struct sun6i_isp_device *isp_dev) +static void +sun6i_isp_proc_configure(struct sun6i_isp_device *isp_dev, + const struct v4l2_mbus_framefmt *mbus_format) { - struct v4l2_mbus_framefmt *mbus_format = &isp_dev->proc.mbus_format; const struct sun6i_isp_proc_format *format; u32 value; @@ -173,6 +163,8 @@ static int sun6i_isp_proc_s_stream(struct v4l2_subdev *subdev, int on) struct sun6i_isp_proc_source *source; struct v4l2_subdev *source_subdev; struct media_pad *remote_pad; + struct v4l2_subdev_state *state; + const struct v4l2_mbus_framefmt *mbus_format; int ret; /* Source */ @@ -191,6 +183,10 @@ static int sun6i_isp_proc_s_stream(struct v4l2_subdev *subdev, int on) else source = &proc->source_csi1; + /* Active State */ + + state = v4l2_subdev_lock_and_get_active_state(subdev); + if (!on) { sun6i_isp_proc_irq_disable(isp_dev); v4l2_subdev_call(source_subdev, video, s_stream, 0); @@ -202,7 +198,7 @@ static int sun6i_isp_proc_s_stream(struct v4l2_subdev *subdev, int on) ret = pm_runtime_resume_and_get(dev); if (ret < 0) - return ret; + goto unlock; /* Clear */ @@ -210,9 +206,12 @@ static int sun6i_isp_proc_s_stream(struct v4l2_subdev *subdev, int on) /* Configure */ + mbus_format = v4l2_subdev_state_get_format(state, + SUN6I_ISP_PROC_PAD_SINK_CSI); + sun6i_isp_tables_configure(isp_dev); - sun6i_isp_params_configure(isp_dev); - sun6i_isp_proc_configure(isp_dev); + sun6i_isp_params_configure(isp_dev, mbus_format); + sun6i_isp_proc_configure(isp_dev, mbus_format); sun6i_isp_capture_configure(isp_dev); /* State Update */ @@ -230,13 +229,17 @@ static int sun6i_isp_proc_s_stream(struct v4l2_subdev *subdev, int on) goto disable; } - return 0; + ret = 0; + goto unlock; disable: sun6i_isp_proc_disable(isp_dev); pm_runtime_put(dev); +unlock: + v4l2_subdev_unlock_state(state); + return ret; } @@ -259,21 +262,22 @@ sun6i_isp_proc_mbus_format_prepare(struct v4l2_mbus_framefmt *mbus_format) static int sun6i_isp_proc_init_state(struct v4l2_subdev *subdev, struct v4l2_subdev_state *state) { - struct sun6i_isp_device *isp_dev = v4l2_get_subdevdata(subdev); - unsigned int pad = SUN6I_ISP_PROC_PAD_SINK_CSI; - struct v4l2_mbus_framefmt *mbus_format = - v4l2_subdev_state_get_format(state, pad); - struct mutex *lock = &isp_dev->proc.lock; + unsigned int pad; - mutex_lock(lock); + for (pad = 0; pad < subdev->entity.num_pads; pad++) { + struct v4l2_mbus_framefmt *mbus_format; - mbus_format->code = sun6i_isp_proc_formats[0].mbus_code; - mbus_format->width = 1280; - mbus_format->height = 720; + if (pad == SUN6I_ISP_PROC_PAD_SINK_PARAMS) + continue; - sun6i_isp_proc_mbus_format_prepare(mbus_format); + mbus_format = v4l2_subdev_state_get_format(state, pad); - mutex_unlock(lock); + mbus_format->code = sun6i_isp_proc_formats[0].mbus_code; + mbus_format->width = 1280; + mbus_format->height = 720; + + sun6i_isp_proc_mbus_format_prepare(mbus_format); + } return 0; } @@ -291,53 +295,31 @@ sun6i_isp_proc_enum_mbus_code(struct v4l2_subdev *subdev, return 0; } -static int sun6i_isp_proc_get_fmt(struct v4l2_subdev *subdev, - struct v4l2_subdev_state *state, - struct v4l2_subdev_format *format) -{ - struct sun6i_isp_device *isp_dev = v4l2_get_subdevdata(subdev); - struct v4l2_mbus_framefmt *mbus_format = &format->format; - struct mutex *lock = &isp_dev->proc.lock; - - mutex_lock(lock); - - if (format->which == V4L2_SUBDEV_FORMAT_TRY) - *mbus_format = *v4l2_subdev_state_get_format(state, - format->pad); - else - *mbus_format = isp_dev->proc.mbus_format; - - mutex_unlock(lock); - - return 0; -} - static int sun6i_isp_proc_set_fmt(struct v4l2_subdev *subdev, struct v4l2_subdev_state *state, struct v4l2_subdev_format *format) { - struct sun6i_isp_device *isp_dev = v4l2_get_subdevdata(subdev); - struct v4l2_mbus_framefmt *mbus_format = &format->format; - struct mutex *lock = &isp_dev->proc.lock; + struct v4l2_mbus_framefmt *mbus_format; - mutex_lock(lock); + if (format->pad != SUN6I_ISP_PROC_PAD_SINK_CSI) + return v4l2_subdev_get_fmt(subdev, state, format); - sun6i_isp_proc_mbus_format_prepare(mbus_format); + sun6i_isp_proc_mbus_format_prepare(&format->format); - if (format->which == V4L2_SUBDEV_FORMAT_TRY) - *v4l2_subdev_state_get_format(state, format->pad) = - *mbus_format; - else - isp_dev->proc.mbus_format = *mbus_format; + mbus_format = v4l2_subdev_state_get_format(state, format->pad); + *mbus_format = format->format; - mutex_unlock(lock); + /* Propagate the format to the source pad. */ + mbus_format = v4l2_subdev_state_get_format(state, + SUN6I_ISP_PROC_PAD_SOURCE); + *mbus_format = format->format; return 0; } static const struct v4l2_subdev_pad_ops sun6i_isp_proc_pad_ops = { .enum_mbus_code = sun6i_isp_proc_enum_mbus_code, - .get_fmt = sun6i_isp_proc_get_fmt, + .get_fmt = v4l2_subdev_get_fmt, .set_fmt = sun6i_isp_proc_set_fmt, }; @@ -499,8 +481,6 @@ int sun6i_isp_proc_setup(struct sun6i_isp_device *isp_dev) struct media_pad *pads = proc->pads; int ret; - mutex_init(&proc->lock); - /* V4L2 Subdev */ v4l2_subdev_init(subdev, &sun6i_isp_proc_subdev_ops); @@ -532,10 +512,14 @@ int sun6i_isp_proc_setup(struct sun6i_isp_device *isp_dev) /* V4L2 Subdev */ + ret = v4l2_subdev_init_finalize(subdev); + if (ret < 0) + goto error_media_entity; + ret = v4l2_device_register_subdev(v4l2_dev, subdev); if (ret < 0) { v4l2_err(v4l2_dev, "failed to register v4l2 subdev: %d\n", ret); - goto error_media_entity; + goto error_subdev_finalize; } /* V4L2 Async */ @@ -562,6 +546,9 @@ int sun6i_isp_proc_setup(struct sun6i_isp_device *isp_dev) v4l2_device_unregister_subdev(subdev); +error_subdev_finalize: + v4l2_subdev_cleanup(subdev); + error_media_entity: media_entity_cleanup(&subdev->entity); @@ -577,5 +564,7 @@ void sun6i_isp_proc_cleanup(struct sun6i_isp_device *isp_dev) v4l2_async_nf_cleanup(notifier); v4l2_device_unregister_subdev(subdev); + v4l2_subdev_cleanup(subdev); + media_entity_cleanup(&subdev->entity); } diff --git a/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_proc.h b/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_proc.h index db6738a39147..26c4327c5ed7 100644 --- a/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_proc.h +++ b/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_proc.h @@ -42,18 +42,11 @@ struct sun6i_isp_proc { struct v4l2_subdev subdev; struct media_pad pads[3]; struct v4l2_async_notifier notifier; - struct v4l2_mbus_framefmt mbus_format; - struct mutex lock; /* Mbus format lock. */ struct sun6i_isp_proc_source source_csi0; struct sun6i_isp_proc_source source_csi1; }; -/* Helpers */ - -void sun6i_isp_proc_dimensions(struct sun6i_isp_device *isp_dev, - unsigned int *width, unsigned int *height); - /* Format */ const struct sun6i_isp_proc_format *sun6i_isp_proc_format_find(u32 mbus_code);