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charset="utf-8" From: Lad Prabhakar The OV5645 sensor exposes controls, so the V4L2_SUBDEV_FL_HAS_EVENTS flag should be set and implement subscribe_event and unsubscribe_event hooks. Signed-off-by: Lad Prabhakar Reviewed-by: Laurent Pinchart Tested-by: Tommaso Merciai --- drivers/media/i2c/ov5645.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/media/i2c/ov5645.c b/drivers/media/i2c/ov5645.c index 0c32bd2940ec..bcbf3239d3ea 100644 --- a/drivers/media/i2c/ov5645.c +++ b/drivers/media/i2c/ov5645.c @@ -29,6 +29,7 @@ #include #include #include +#include #include #include =20 @@ -1042,7 +1043,13 @@ static const struct v4l2_subdev_pad_ops ov5645_subde= v_pad_ops =3D { .get_selection =3D ov5645_get_selection, }; =20 +static const struct v4l2_subdev_core_ops ov5645_core_ops =3D { + .subscribe_event =3D v4l2_ctrl_subdev_subscribe_event, + .unsubscribe_event =3D v4l2_event_subdev_unsubscribe, +}; + static const struct v4l2_subdev_ops ov5645_subdev_ops =3D { + .core =3D &ov5645_core_ops, .video =3D &ov5645_video_ops, .pad =3D &ov5645_subdev_pad_ops, }; @@ -1178,7 +1185,8 @@ static int ov5645_probe(struct i2c_client *client) =20 v4l2_i2c_subdev_init(&ov5645->sd, client, &ov5645_subdev_ops); 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Fri, 18 Oct 2024 08:32:54 -0700 (PDT) From: Prabhakar X-Google-Original-From: Prabhakar To: Laurent Pinchart , Sakari Ailus , Mauro Carvalho Chehab , Hans Verkuil Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Prabhakar , Biju Das , Fabrizio Castro , Lad Prabhakar Subject: [PATCH v3 02/10] media: i2c: ov5645: Use local `dev` pointer for subdev device assignment Date: Fri, 18 Oct 2024 16:32:22 +0100 Message-ID: <20241018153230.235647-3-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241018153230.235647-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20241018153230.235647-1-prabhakar.mahadev-lad.rj@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Lad Prabhakar While assigning the subdev device pointer, use the local `dev` pointer which is already extracted from the `i2c_client` pointer. Signed-off-by: Lad Prabhakar Reviewed-by: Laurent Pinchart Reviewed-by: Tommaso Merciai Tested-by: Tommaso Merciai --- drivers/media/i2c/ov5645.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/i2c/ov5645.c b/drivers/media/i2c/ov5645.c index bcbf3239d3ea..d344d3447a95 100644 --- a/drivers/media/i2c/ov5645.c +++ b/drivers/media/i2c/ov5645.c @@ -1188,7 +1188,7 @@ static int ov5645_probe(struct i2c_client *client) ov5645->sd.flags |=3D V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_HAS_EVENTS; ov5645->pad.flags =3D MEDIA_PAD_FL_SOURCE; - ov5645->sd.dev =3D &client->dev; + ov5645->sd.dev =3D dev; ov5645->sd.entity.function =3D MEDIA_ENT_F_CAM_SENSOR; =20 ret =3D media_entity_pads_init(&ov5645->sd.entity, 1, &ov5645->pad); --=20 2.43.0 From nobody Tue Nov 26 08:42:46 2024 Received: from mail-wm1-f50.google.com (mail-wm1-f50.google.com [209.85.128.50]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6CC99202F65; 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Fri, 18 Oct 2024 08:32:56 -0700 (PDT) Received: from localhost.localdomain ([2a06:5906:61b:2d00:d416:f456:3869:adaf]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4316067e7b9sm30615595e9.6.2024.10.18.08.32.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 18 Oct 2024 08:32:55 -0700 (PDT) From: Prabhakar X-Google-Original-From: Prabhakar To: Laurent Pinchart , Sakari Ailus , Mauro Carvalho Chehab , Hans Verkuil Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Prabhakar , Biju Das , Fabrizio Castro , Lad Prabhakar Subject: [PATCH v3 03/10] media: i2c: ov5645: Replace dev_err with dev_err_probe in probe function Date: Fri, 18 Oct 2024 16:32:23 +0100 Message-ID: <20241018153230.235647-4-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241018153230.235647-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20241018153230.235647-1-prabhakar.mahadev-lad.rj@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Lad Prabhakar Refactor error handling in the ov5645_probe() function by replacing multiple dev_err() calls with dev_err_probe(). - Note that during this process, the error string "external clock frequency %u is not supported" was replaced with "unsupported xclk frequency %u" to ensure it wraps at 80 columns. - Additionally, the error string for control initialization failure was changed from "%s: control initialization error %d\n" to "failed to add controls\n" as there is no need to print the function name and error code in the string, since dev_err_probe() already provides this information. Signed-off-by: Lad Prabhakar Reviewed-by: Laurent Pinchart Tested-by: Tommaso Merciai --- drivers/media/i2c/ov5645.c | 82 +++++++++++++++++--------------------- 1 file changed, 36 insertions(+), 46 deletions(-) diff --git a/drivers/media/i2c/ov5645.c b/drivers/media/i2c/ov5645.c index d344d3447a95..520afd3d2aa3 100644 --- a/drivers/media/i2c/ov5645.c +++ b/drivers/media/i2c/ov5645.c @@ -1076,51 +1076,44 @@ static int ov5645_probe(struct i2c_client *client) ov5645->dev =3D dev; =20 endpoint =3D of_graph_get_endpoint_by_regs(dev->of_node, 0, -1); - if (!endpoint) { - dev_err(dev, "endpoint node not found\n"); - return -EINVAL; - } + if (!endpoint) + return dev_err_probe(dev, -EINVAL, + "endpoint node not found\n"); =20 ret =3D v4l2_fwnode_endpoint_parse(of_fwnode_handle(endpoint), &ov5645->ep); =20 of_node_put(endpoint); =20 - if (ret < 0) { - dev_err(dev, "parsing endpoint node failed\n"); - return ret; - } + if (ret < 0) + return dev_err_probe(dev, ret, + "parsing endpoint node failed\n"); =20 - if (ov5645->ep.bus_type !=3D V4L2_MBUS_CSI2_DPHY) { - dev_err(dev, "invalid bus type, must be CSI2\n"); - return -EINVAL; - } + if (ov5645->ep.bus_type !=3D V4L2_MBUS_CSI2_DPHY) + return dev_err_probe(dev, -EINVAL, + "invalid bus type, must be CSI2\n"); =20 /* get system clock (xclk) */ ov5645->xclk =3D devm_clk_get(dev, NULL); - if (IS_ERR(ov5645->xclk)) { - dev_err(dev, "could not get xclk"); - return PTR_ERR(ov5645->xclk); - } + if (IS_ERR(ov5645->xclk)) + return dev_err_probe(dev, PTR_ERR(ov5645->xclk), + "could not get xclk"); =20 ret =3D of_property_read_u32(dev->of_node, "clock-frequency", &xclk_freq); - if (ret) { - dev_err(dev, "could not get xclk frequency\n"); - return ret; - } + if (ret) + return dev_err_probe(dev, ret, + "could not get xclk frequency\n"); =20 /* external clock must be 24MHz, allow 1% tolerance */ - if (xclk_freq < 23760000 || xclk_freq > 24240000) { - dev_err(dev, "external clock frequency %u is not supported\n", - xclk_freq); - return -EINVAL; - } + if (xclk_freq < 23760000 || xclk_freq > 24240000) + return dev_err_probe(dev, -EINVAL, + "unsupported xclk frequency %u\n", + xclk_freq); =20 ret =3D clk_set_rate(ov5645->xclk, xclk_freq); - if (ret) { - dev_err(dev, "could not set xclk frequency\n"); - return ret; - } + if (ret) + return dev_err_probe(dev, ret, + "could not set xclk frequency\n"); =20 for (i =3D 0; i < OV5645_NUM_SUPPLIES; i++) ov5645->supplies[i].supply =3D ov5645_supply_name[i]; @@ -1131,16 +1124,14 @@ static int ov5645_probe(struct i2c_client *client) return ret; =20 ov5645->enable_gpio =3D devm_gpiod_get(dev, "enable", GPIOD_OUT_HIGH); - if (IS_ERR(ov5645->enable_gpio)) { - dev_err(dev, "cannot get enable gpio\n"); - return PTR_ERR(ov5645->enable_gpio); - } + if (IS_ERR(ov5645->enable_gpio)) + return dev_err_probe(dev, PTR_ERR(ov5645->enable_gpio), + "cannot get enable gpio\n"); =20 ov5645->rst_gpio =3D devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH); - if (IS_ERR(ov5645->rst_gpio)) { - dev_err(dev, "cannot get reset gpio\n"); - return PTR_ERR(ov5645->rst_gpio); - } + if (IS_ERR(ov5645->rst_gpio)) + return dev_err_probe(dev, PTR_ERR(ov5645->rst_gpio), + "cannot get reset gpio\n"); =20 mutex_init(&ov5645->power_lock); =20 @@ -1177,9 +1168,8 @@ static int ov5645_probe(struct i2c_client *client) ov5645->sd.ctrl_handler =3D &ov5645->ctrls; =20 if (ov5645->ctrls.error) { - dev_err(dev, "%s: control initialization error %d\n", - __func__, ov5645->ctrls.error); ret =3D ov5645->ctrls.error; + dev_err_probe(dev, ret, "failed to add controls\n"); goto free_ctrl; } =20 @@ -1193,7 +1183,7 @@ static int ov5645_probe(struct i2c_client *client) =20 ret =3D media_entity_pads_init(&ov5645->sd.entity, 1, &ov5645->pad); if (ret < 0) { - dev_err(dev, "could not register media entity\n"); + dev_err_probe(dev, ret, "could not register media entity\n"); goto free_ctrl; } =20 @@ -1203,14 +1193,14 @@ static int ov5645_probe(struct i2c_client *client) =20 ret =3D ov5645_read_reg(ov5645, OV5645_CHIP_ID_HIGH, &chip_id_high); if (ret < 0 || chip_id_high !=3D OV5645_CHIP_ID_HIGH_BYTE) { - dev_err(dev, "could not read ID high\n"); ret =3D -ENODEV; + dev_err_probe(dev, ret, "could not read ID high\n"); goto power_down; } ret =3D ov5645_read_reg(ov5645, OV5645_CHIP_ID_LOW, &chip_id_low); if (ret < 0 || chip_id_low !=3D OV5645_CHIP_ID_LOW_BYTE) { - dev_err(dev, "could not read ID low\n"); ret =3D -ENODEV; + dev_err_probe(dev, ret, "could not read ID low\n"); goto power_down; } =20 @@ -1219,24 +1209,24 @@ static int ov5645_probe(struct i2c_client *client) ret =3D ov5645_read_reg(ov5645, OV5645_AEC_PK_MANUAL, &ov5645->aec_pk_manual); if (ret < 0) { - dev_err(dev, "could not read AEC/AGC mode\n"); ret =3D -ENODEV; + dev_err_probe(dev, ret, "could not read AEC/AGC mode\n"); goto power_down; } =20 ret =3D ov5645_read_reg(ov5645, OV5645_TIMING_TC_REG20, &ov5645->timing_tc_reg20); if (ret < 0) { - dev_err(dev, "could not read vflip value\n"); ret =3D -ENODEV; + dev_err_probe(dev, ret, "could not read vflip value\n"); goto power_down; } =20 ret =3D ov5645_read_reg(ov5645, OV5645_TIMING_TC_REG21, &ov5645->timing_tc_reg21); if (ret < 0) { - dev_err(dev, "could not read hflip value\n"); ret =3D -ENODEV; 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Fri, 18 Oct 2024 08:32:56 -0700 (PDT) From: Prabhakar X-Google-Original-From: Prabhakar To: Laurent Pinchart , Sakari Ailus , Mauro Carvalho Chehab , Hans Verkuil Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Prabhakar , Biju Das , Fabrizio Castro , Lad Prabhakar Subject: [PATCH v3 04/10] media: i2c: ov5645: Use v4l2_async_register_subdev_sensor() Date: Fri, 18 Oct 2024 16:32:24 +0100 Message-ID: <20241018153230.235647-5-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241018153230.235647-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20241018153230.235647-1-prabhakar.mahadev-lad.rj@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Lad Prabhakar Utilize the v4l2_async_register_subdev_sensor() helper to register the sub-device, as this facilitates parsing of firmware interfaces for remote references. Signed-off-by: Lad Prabhakar Reviewed-by: Laurent Pinchart Tested-by: Tommaso Merciai --- drivers/media/i2c/ov5645.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/i2c/ov5645.c b/drivers/media/i2c/ov5645.c index 520afd3d2aa3..1f2800b3d005 100644 --- a/drivers/media/i2c/ov5645.c +++ b/drivers/media/i2c/ov5645.c @@ -1236,7 +1236,7 @@ static int ov5645_probe(struct i2c_client *client) =20 ov5645_init_state(&ov5645->sd, NULL); =20 - ret =3D v4l2_async_register_subdev(&ov5645->sd); + ret =3D v4l2_async_register_subdev_sensor(&ov5645->sd); if (ret < 0) { dev_err_probe(dev, ret, "could not register v4l2 device\n"); goto err_pm_runtime; --=20 2.43.0 From nobody Tue Nov 26 08:42:46 2024 Received: from mail-wm1-f43.google.com (mail-wm1-f43.google.com [209.85.128.43]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E7E02202F9B; Fri, 18 Oct 2024 15:33:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; 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charset="utf-8" From: Lad Prabhakar Remove the `power_lock` mutex used during control applications, as it is only utilized in the .s_ctrl() function. Since the control framework already serializes calls to this function, the mutex is unnecessary. Signed-off-by: Lad Prabhakar Reviewed-by: Laurent Pinchart Tested-by: Tommaso Merciai --- drivers/media/i2c/ov5645.c | 12 +----------- 1 file changed, 1 insertion(+), 11 deletions(-) diff --git a/drivers/media/i2c/ov5645.c b/drivers/media/i2c/ov5645.c index 1f2800b3d005..a7d380692673 100644 --- a/drivers/media/i2c/ov5645.c +++ b/drivers/media/i2c/ov5645.c @@ -106,8 +106,6 @@ struct ov5645 { u8 timing_tc_reg20; u8 timing_tc_reg21; =20 - struct mutex power_lock; /* lock to protect power state */ - struct gpio_desc *enable_gpio; struct gpio_desc *rst_gpio; }; @@ -782,11 +780,8 @@ static int ov5645_s_ctrl(struct v4l2_ctrl *ctrl) struct ov5645, ctrls); int ret; =20 - mutex_lock(&ov5645->power_lock); - if (!pm_runtime_get_if_in_use(ov5645->dev)) { - mutex_unlock(&ov5645->power_lock); + if (!pm_runtime_get_if_in_use(ov5645->dev)) return 0; - } =20 switch (ctrl->id) { case V4L2_CID_SATURATION: @@ -817,7 +812,6 @@ static int ov5645_s_ctrl(struct v4l2_ctrl *ctrl) =20 pm_runtime_mark_last_busy(ov5645->dev); 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charset="utf-8" From: Lad Prabhakar Port the ov5645 sensor driver to use the subdev active state. Move all the format configuration to the subdevice state and simplify the format handling, locking and initialization. Signed-off-by: Lad Prabhakar Reviewed-by: Laurent Pinchart Tested-by: Tommaso Merciai --- drivers/media/i2c/ov5645.c | 108 +++++++++++++------------------------ 1 file changed, 38 insertions(+), 70 deletions(-) diff --git a/drivers/media/i2c/ov5645.c b/drivers/media/i2c/ov5645.c index a7d380692673..357298dab9b4 100644 --- a/drivers/media/i2c/ov5645.c +++ b/drivers/media/i2c/ov5645.c @@ -89,7 +89,6 @@ struct ov5645 { struct v4l2_subdev sd; struct media_pad pad; struct v4l2_fwnode_endpoint ep; - struct v4l2_mbus_framefmt fmt; struct v4l2_rect crop; struct clk *xclk; =20 @@ -850,49 +849,6 @@ static int ov5645_enum_frame_size(struct v4l2_subdev *= subdev, return 0; } =20 -static struct v4l2_mbus_framefmt * -__ov5645_get_pad_format(struct ov5645 *ov5645, - struct v4l2_subdev_state *sd_state, - unsigned int pad, - enum v4l2_subdev_format_whence which) -{ - switch (which) { - case V4L2_SUBDEV_FORMAT_TRY: - return v4l2_subdev_state_get_format(sd_state, pad); - case V4L2_SUBDEV_FORMAT_ACTIVE: - return &ov5645->fmt; - default: - return NULL; - } -} - -static int ov5645_get_format(struct v4l2_subdev *sd, - struct v4l2_subdev_state *sd_state, - struct v4l2_subdev_format *format) -{ - struct ov5645 *ov5645 =3D to_ov5645(sd); - - format->format =3D *__ov5645_get_pad_format(ov5645, sd_state, - format->pad, - format->which); - return 0; -} - -static struct v4l2_rect * -__ov5645_get_pad_crop(struct ov5645 *ov5645, - struct v4l2_subdev_state *sd_state, - unsigned int pad, enum v4l2_subdev_format_whence which) -{ - switch (which) { - case V4L2_SUBDEV_FORMAT_TRY: - return v4l2_subdev_state_get_crop(sd_state, pad); - case V4L2_SUBDEV_FORMAT_ACTIVE: - return &ov5645->crop; - default: - return NULL; - } -} - static int ov5645_set_format(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *format) @@ -903,33 +859,30 @@ static int ov5645_set_format(struct v4l2_subdev *sd, const struct ov5645_mode_info *new_mode; int ret; =20 - __crop =3D __ov5645_get_pad_crop(ov5645, sd_state, format->pad, - format->which); - + __crop =3D v4l2_subdev_state_get_crop(sd_state, 0); new_mode =3D v4l2_find_nearest_size(ov5645_mode_info_data, - ARRAY_SIZE(ov5645_mode_info_data), - width, height, - format->format.width, format->format.height); + ARRAY_SIZE(ov5645_mode_info_data), + width, height, format->format.width, + format->format.height); =20 __crop->width =3D new_mode->width; __crop->height =3D new_mode->height; =20 if (format->which =3D=3D V4L2_SUBDEV_FORMAT_ACTIVE) { - ret =3D v4l2_ctrl_s_ctrl_int64(ov5645->pixel_clock, - new_mode->pixel_clock); + ret =3D __v4l2_ctrl_s_ctrl_int64(ov5645->pixel_clock, + new_mode->pixel_clock); if (ret < 0) return ret; =20 - ret =3D v4l2_ctrl_s_ctrl(ov5645->link_freq, - new_mode->link_freq); + ret =3D __v4l2_ctrl_s_ctrl(ov5645->link_freq, + new_mode->link_freq); if (ret < 0) return ret; =20 ov5645->current_mode =3D new_mode; } =20 - __format =3D __ov5645_get_pad_format(ov5645, sd_state, format->pad, - format->which); + __format =3D v4l2_subdev_state_get_format(sd_state, 0); __format->width =3D __crop->width; __format->height =3D __crop->height; __format->code =3D MEDIA_BUS_FMT_UYVY8_1X16; @@ -944,11 +897,15 @@ static int ov5645_set_format(struct v4l2_subdev *sd, static int ov5645_init_state(struct v4l2_subdev *subdev, struct v4l2_subdev_state *sd_state) { - struct v4l2_subdev_format fmt =3D { 0 }; - - fmt.which =3D sd_state ? V4L2_SUBDEV_FORMAT_TRY : V4L2_SUBDEV_FORMAT_ACTI= VE; - fmt.format.width =3D 1920; - fmt.format.height =3D 1080; + struct v4l2_subdev_format fmt =3D { + .which =3D V4L2_SUBDEV_FORMAT_TRY, + .pad =3D 0, + .format =3D { + .code =3D MEDIA_BUS_FMT_UYVY8_1X16, + .width =3D ov5645_mode_info_data[1].width, + .height =3D ov5645_mode_info_data[1].height, + }, + }; =20 ov5645_set_format(subdev, sd_state, &fmt); =20 @@ -959,25 +916,27 @@ static int ov5645_get_selection(struct v4l2_subdev *s= d, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_selection *sel) { - struct ov5645 *ov5645 =3D to_ov5645(sd); - if (sel->target !=3D V4L2_SEL_TGT_CROP) return -EINVAL; =20 - sel->r =3D *__ov5645_get_pad_crop(ov5645, sd_state, sel->pad, - sel->which); + sel->r =3D *v4l2_subdev_state_get_crop(sd_state, 0); return 0; } =20 static int ov5645_s_stream(struct v4l2_subdev *subdev, int enable) { struct ov5645 *ov5645 =3D to_ov5645(subdev); + struct v4l2_subdev_state *state; int ret; =20 + state =3D v4l2_subdev_lock_and_get_active_state(&ov5645->sd); + if (enable) { ret =3D pm_runtime_resume_and_get(ov5645->dev); - if (ret < 0) + if (ret < 0) { + v4l2_subdev_unlock_state(state); return ret; + } =20 ret =3D ov5645_set_register_array(ov5645, ov5645->current_mode->data, @@ -988,7 +947,7 @@ static int ov5645_s_stream(struct v4l2_subdev *subdev, = int enable) ov5645->current_mode->height); goto err_rpm_put; } - ret =3D v4l2_ctrl_handler_setup(&ov5645->ctrls); + ret =3D __v4l2_ctrl_handler_setup(&ov5645->ctrls); if (ret < 0) { dev_err(ov5645->dev, "could not sync v4l2 controls\n"); goto err_rpm_put; @@ -1013,6 +972,7 @@ static int ov5645_s_stream(struct v4l2_subdev *subdev,= int enable) goto stream_off_rpm_put; } =20 + v4l2_subdev_unlock_state(state); return 0; =20 err_rpm_put: @@ -1022,6 +982,7 @@ static int ov5645_s_stream(struct v4l2_subdev *subdev,= int enable) stream_off_rpm_put: pm_runtime_mark_last_busy(ov5645->dev); pm_runtime_put_autosuspend(ov5645->dev); + v4l2_subdev_unlock_state(state); return ret; } =20 @@ -1032,7 +993,7 @@ static const struct v4l2_subdev_video_ops ov5645_video= _ops =3D { static const struct v4l2_subdev_pad_ops ov5645_subdev_pad_ops =3D { .enum_mbus_code =3D ov5645_enum_mbus_code, .enum_frame_size =3D ov5645_enum_frame_size, - .get_fmt =3D ov5645_get_format, + .get_fmt =3D v4l2_subdev_get_fmt, .set_fmt =3D ov5645_set_format, .get_selection =3D ov5645_get_selection, }; @@ -1222,12 +1183,17 @@ static int ov5645_probe(struct i2c_client *client) goto power_down; } =20 + ov5645->sd.state_lock =3D ov5645->ctrls.lock; + ret =3D v4l2_subdev_init_finalize(&ov5645->sd); + if (ret < 0) { + dev_err_probe(dev, ret, "subdev init error\n"); + goto power_down; + } + pm_runtime_set_active(dev); pm_runtime_get_noresume(dev); pm_runtime_enable(dev); =20 - ov5645_init_state(&ov5645->sd, NULL); - ret =3D v4l2_async_register_subdev_sensor(&ov5645->sd); if (ret < 0) { dev_err_probe(dev, ret, "could not register v4l2 device\n"); @@ -1244,6 +1210,7 @@ static int ov5645_probe(struct i2c_client *client) err_pm_runtime: pm_runtime_disable(dev); pm_runtime_put_noidle(dev); + v4l2_subdev_cleanup(&ov5645->sd); power_down: ov5645_set_power_off(dev); free_entity: @@ -1260,6 +1227,7 @@ static void ov5645_remove(struct i2c_client *client) struct ov5645 *ov5645 =3D to_ov5645(sd); =20 v4l2_async_unregister_subdev(&ov5645->sd); + v4l2_subdev_cleanup(sd); media_entity_cleanup(&ov5645->sd.entity); 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charset="utf-8" From: Lad Prabhakar Switch from s_stream() to enable_streams() and disable_streams() pad operations. They are preferred and required for streams support. Signed-off-by: Lad Prabhakar Reviewed-by: Laurent Pinchart Tested-by: Tommaso Merciai --- drivers/media/i2c/ov5645.c | 90 +++++++++++++++++++------------------- 1 file changed, 46 insertions(+), 44 deletions(-) diff --git a/drivers/media/i2c/ov5645.c b/drivers/media/i2c/ov5645.c index 357298dab9b4..a3b9402d39af 100644 --- a/drivers/media/i2c/ov5645.c +++ b/drivers/media/i2c/ov5645.c @@ -923,71 +923,71 @@ static int ov5645_get_selection(struct v4l2_subdev *s= d, return 0; } =20 -static int ov5645_s_stream(struct v4l2_subdev *subdev, int enable) +static int ov5645_enable_streams(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state, u32 pad, + u64 streams_mask) { - struct ov5645 *ov5645 =3D to_ov5645(subdev); - struct v4l2_subdev_state *state; + struct ov5645 *ov5645 =3D to_ov5645(sd); int ret; =20 - state =3D v4l2_subdev_lock_and_get_active_state(&ov5645->sd); - - if (enable) { - ret =3D pm_runtime_resume_and_get(ov5645->dev); - if (ret < 0) { - v4l2_subdev_unlock_state(state); - return ret; - } + ret =3D pm_runtime_resume_and_get(ov5645->dev); + if (ret < 0) + return ret; =20 - ret =3D ov5645_set_register_array(ov5645, + ret =3D ov5645_set_register_array(ov5645, ov5645->current_mode->data, ov5645->current_mode->data_size); - if (ret < 0) { - dev_err(ov5645->dev, "could not set mode %dx%d\n", - ov5645->current_mode->width, - ov5645->current_mode->height); - goto err_rpm_put; - } - ret =3D __v4l2_ctrl_handler_setup(&ov5645->ctrls); - if (ret < 0) { - dev_err(ov5645->dev, "could not sync v4l2 controls\n"); - goto err_rpm_put; - } - - ret =3D ov5645_write_reg(ov5645, OV5645_IO_MIPI_CTRL00, 0x45); - if (ret < 0) - goto err_rpm_put; - - ret =3D ov5645_write_reg(ov5645, OV5645_SYSTEM_CTRL0, - OV5645_SYSTEM_CTRL0_START); - if (ret < 0) - goto err_rpm_put; - } else { - ret =3D ov5645_write_reg(ov5645, OV5645_IO_MIPI_CTRL00, 0x40); - if (ret < 0) - goto stream_off_rpm_put; + if (ret < 0) { + dev_err(ov5645->dev, "could not set mode %dx%d\n", + ov5645->current_mode->width, + ov5645->current_mode->height); + goto err_rpm_put; + } + ret =3D __v4l2_ctrl_handler_setup(&ov5645->ctrls); + if (ret < 0) { + dev_err(ov5645->dev, "could not sync v4l2 controls\n"); + goto err_rpm_put; + } =20 - ret =3D ov5645_write_reg(ov5645, OV5645_SYSTEM_CTRL0, - OV5645_SYSTEM_CTRL0_STOP); + ret =3D ov5645_write_reg(ov5645, OV5645_IO_MIPI_CTRL00, 0x45); + if (ret < 0) + goto err_rpm_put; =20 - goto stream_off_rpm_put; - } + ret =3D ov5645_write_reg(ov5645, OV5645_SYSTEM_CTRL0, + OV5645_SYSTEM_CTRL0_START); + if (ret < 0) + goto err_rpm_put; =20 - v4l2_subdev_unlock_state(state); return 0; =20 err_rpm_put: pm_runtime_put_sync(ov5645->dev); return ret; +} + +static int ov5645_disable_streams(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state, u32 pad, + u64 streams_mask) +{ + struct ov5645 *ov5645 =3D to_ov5645(sd); + int ret; + + ret =3D ov5645_write_reg(ov5645, OV5645_IO_MIPI_CTRL00, 0x40); + if (ret < 0) + goto rpm_put; + + ret =3D ov5645_write_reg(ov5645, OV5645_SYSTEM_CTRL0, + OV5645_SYSTEM_CTRL0_STOP); =20 -stream_off_rpm_put: +rpm_put: pm_runtime_mark_last_busy(ov5645->dev); pm_runtime_put_autosuspend(ov5645->dev); - v4l2_subdev_unlock_state(state); + return ret; } =20 static const struct v4l2_subdev_video_ops ov5645_video_ops =3D { - .s_stream =3D ov5645_s_stream, + .s_stream =3D v4l2_subdev_s_stream_helper, }; =20 static const struct v4l2_subdev_pad_ops ov5645_subdev_pad_ops =3D { @@ -996,6 +996,8 @@ static const struct v4l2_subdev_pad_ops ov5645_subdev_p= ad_ops =3D { .get_fmt =3D v4l2_subdev_get_fmt, .set_fmt =3D ov5645_set_format, .get_selection =3D ov5645_get_selection, + .enable_streams =3D ov5645_enable_streams, + .disable_streams =3D ov5645_disable_streams, }; =20 static const struct v4l2_subdev_core_ops ov5645_core_ops =3D { --=20 2.43.0 From nobody Tue Nov 26 08:42:46 2024 Received: from mail-wr1-f41.google.com (mail-wr1-f41.google.com [209.85.221.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 87B5020401F; 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charset="utf-8" From: Lad Prabhakar Implement the .get_frame_desc() subdev operation to report information about streams to the connected CSI-2 receiver. This is required to let the CSI-2 receiver driver know about virtual channels and data types for each stream. Signed-off-by: Lad Prabhakar Reviewed-by: Laurent Pinchart Tested-by: Tommaso Merciai --- drivers/media/i2c/ov5645.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/drivers/media/i2c/ov5645.c b/drivers/media/i2c/ov5645.c index a3b9402d39af..e3706b6b5621 100644 --- a/drivers/media/i2c/ov5645.c +++ b/drivers/media/i2c/ov5645.c @@ -28,6 +28,7 @@ #include #include #include +#include #include #include #include @@ -819,6 +820,29 @@ static const struct v4l2_ctrl_ops ov5645_ctrl_ops =3D { .s_ctrl =3D ov5645_s_ctrl, }; =20 +static int ov5645_get_frame_desc(struct v4l2_subdev *sd, unsigned int pad, + struct v4l2_mbus_frame_desc *fd) +{ + struct v4l2_subdev_state *state; + u32 code; + + state =3D v4l2_subdev_lock_and_get_active_state(sd); + code =3D v4l2_subdev_state_get_format(state, OV5645_PAD_SOURCE, 0)->code; + v4l2_subdev_unlock_state(state); + + fd->type =3D V4L2_MBUS_FRAME_DESC_TYPE_CSI2; + fd->num_entries =3D 1; + + memset(fd->entry, 0, sizeof(fd->entry)); + + fd->entry[0].pixelcode =3D code; 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charset="utf-8" From: Lad Prabhakar Use the newly added internal pad API to expose the internal configuration of the sensor to userspace in a standard manner. Signed-off-by: Lad Prabhakar Tested-by: Tommaso Merciai --- drivers/media/i2c/ov5645.c | 115 +++++++++++++++++++++++++++---------- 1 file changed, 84 insertions(+), 31 deletions(-) diff --git a/drivers/media/i2c/ov5645.c b/drivers/media/i2c/ov5645.c index e3706b6b5621..a3353992594b 100644 --- a/drivers/media/i2c/ov5645.c +++ b/drivers/media/i2c/ov5645.c @@ -61,6 +61,10 @@ #define OV5645_SDE_SAT_U 0x5583 #define OV5645_SDE_SAT_V 0x5584 =20 +#define OV5645_NATIVE_FORMAT MEDIA_BUS_FMT_SBGGR8_1X8 +#define OV5645_NATIVE_WIDTH 2592 +#define OV5645_NATIVE_HEIGHT 1944 + /* regulator supplies */ static const char * const ov5645_supply_name[] =3D { "vdddo", /* Digital I/O (1.8V) supply */ @@ -70,6 +74,12 @@ static const char * const ov5645_supply_name[] =3D { =20 #define OV5645_NUM_SUPPLIES ARRAY_SIZE(ov5645_supply_name) =20 +enum ov5645_pad_ids { + OV5645_PAD_SOURCE, + OV5645_PAD_IMAGE, + OV5645_NUM_PADS, +}; + struct reg_value { u16 reg; u8 val; @@ -88,7 +98,7 @@ struct ov5645 { struct i2c_client *i2c_client; struct device *dev; struct v4l2_subdev sd; - struct media_pad pad; + struct media_pad pads[OV5645_NUM_PADS]; struct v4l2_fwnode_endpoint ep; struct v4l2_rect crop; struct clk *xclk; @@ -850,7 +860,10 @@ static int ov5645_enum_mbus_code(struct v4l2_subdev *s= d, if (code->index > 0) return -EINVAL; =20 - code->code =3D MEDIA_BUS_FMT_UYVY8_1X16; + if (code->pad =3D=3D OV5645_PAD_IMAGE) + code->code =3D OV5645_NATIVE_FORMAT; + else + code->code =3D MEDIA_BUS_FMT_UYVY8_1X16; =20 return 0; } @@ -859,16 +872,24 @@ static int ov5645_enum_frame_size(struct v4l2_subdev = *subdev, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_frame_size_enum *fse) { - if (fse->code !=3D MEDIA_BUS_FMT_UYVY8_1X16) - return -EINVAL; - - if (fse->index >=3D ARRAY_SIZE(ov5645_mode_info_data)) - return -EINVAL; - - fse->min_width =3D ov5645_mode_info_data[fse->index].width; - fse->max_width =3D ov5645_mode_info_data[fse->index].width; - fse->min_height =3D ov5645_mode_info_data[fse->index].height; - fse->max_height =3D ov5645_mode_info_data[fse->index].height; + if (fse->pad =3D=3D OV5645_PAD_IMAGE) { + if (fse->code !=3D OV5645_NATIVE_FORMAT || fse->index > 0) + return -EINVAL; + + fse->min_width =3D OV5645_NATIVE_WIDTH; + fse->max_width =3D OV5645_NATIVE_WIDTH; + fse->min_height =3D OV5645_NATIVE_HEIGHT; + fse->max_height =3D OV5645_NATIVE_HEIGHT; + } else { + if (fse->code !=3D MEDIA_BUS_FMT_UYVY8_1X16 || + fse->index >=3D ARRAY_SIZE(ov5645_mode_info_data)) + return -EINVAL; + + fse->min_width =3D ov5645_mode_info_data[fse->index].width; + fse->max_width =3D ov5645_mode_info_data[fse->index].width; + fse->min_height =3D ov5645_mode_info_data[fse->index].height; + fse->max_height =3D ov5645_mode_info_data[fse->index].height; + } =20 return 0; } @@ -877,20 +898,57 @@ static int ov5645_set_format(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *format) { - struct ov5645 *ov5645 =3D to_ov5645(sd); - struct v4l2_mbus_framefmt *__format; - struct v4l2_rect *__crop; const struct ov5645_mode_info *new_mode; + struct ov5645 *ov5645 =3D to_ov5645(sd); + struct v4l2_mbus_framefmt *fmt; + struct v4l2_rect *compose; + struct v4l2_rect *crop; int ret; =20 - __crop =3D v4l2_subdev_state_get_crop(sd_state, 0); + if (format->pad !=3D OV5645_PAD_SOURCE) + return v4l2_subdev_get_fmt(sd, sd_state, format); + new_mode =3D v4l2_find_nearest_size(ov5645_mode_info_data, ARRAY_SIZE(ov5645_mode_info_data), width, height, format->format.width, format->format.height); - - __crop->width =3D new_mode->width; - __crop->height =3D new_mode->height; + format->format.code =3D MEDIA_BUS_FMT_UYVY8_1X16; + format->format.width =3D new_mode->width; + format->format.height =3D new_mode->height; + format->format.field =3D V4L2_FIELD_NONE; + format->format.colorspace =3D V4L2_COLORSPACE_SRGB; + format->format.ycbcr_enc =3D V4L2_YCBCR_ENC_601; + format->format.quantization =3D V4L2_QUANTIZATION_LIM_RANGE; + format->format.xfer_func =3D V4L2_XFER_FUNC_SRGB; + + fmt =3D v4l2_subdev_state_get_format(sd_state, OV5645_PAD_IMAGE); + *fmt =3D format->format; + fmt->code =3D OV5645_NATIVE_FORMAT; + fmt->width =3D OV5645_NATIVE_WIDTH; + fmt->height =3D OV5645_NATIVE_HEIGHT; + + crop =3D v4l2_subdev_state_get_crop(sd_state, OV5645_PAD_IMAGE); + crop->width =3D format->format.width; + crop->height =3D format->format.height; + + /* + * The compose rectangle models binning, its size is the sensor output + * size. + */ + compose =3D v4l2_subdev_state_get_compose(sd_state, OV5645_PAD_IMAGE); + compose->left =3D 0; + compose->top =3D 0; + compose->width =3D format->format.width; + compose->height =3D format->format.height; + + crop =3D v4l2_subdev_state_get_crop(sd_state, OV5645_PAD_SOURCE); + crop->left =3D 0; + crop->top =3D 0; + crop->width =3D format->format.width; + crop->height =3D format->format.height; + + fmt =3D v4l2_subdev_state_get_format(sd_state, OV5645_PAD_SOURCE); + *fmt =3D format->format; =20 if (format->which =3D=3D V4L2_SUBDEV_FORMAT_ACTIVE) { ret =3D __v4l2_ctrl_s_ctrl_int64(ov5645->pixel_clock, @@ -906,14 +964,6 @@ static int ov5645_set_format(struct v4l2_subdev *sd, ov5645->current_mode =3D new_mode; } =20 - __format =3D v4l2_subdev_state_get_format(sd_state, 0); - __format->width =3D __crop->width; - __format->height =3D __crop->height; - __format->code =3D MEDIA_BUS_FMT_UYVY8_1X16; - __format->field =3D V4L2_FIELD_NONE; - __format->colorspace =3D V4L2_COLORSPACE_SRGB; - - format->format =3D *__format; =20 return 0; } @@ -923,7 +973,7 @@ static int ov5645_init_state(struct v4l2_subdev *subdev, { struct v4l2_subdev_format fmt =3D { .which =3D V4L2_SUBDEV_FORMAT_TRY, - .pad =3D 0, + .pad =3D OV5645_PAD_SOURCE, .format =3D { .code =3D MEDIA_BUS_FMT_UYVY8_1X16, .width =3D ov5645_mode_info_data[1].width, @@ -943,7 +993,7 @@ static int ov5645_get_selection(struct v4l2_subdev *sd, if (sel->target !=3D V4L2_SEL_TGT_CROP) return -EINVAL; =20 - sel->r =3D *v4l2_subdev_state_get_crop(sd_state, 0); + sel->r =3D *v4l2_subdev_state_get_crop(sd_state, sel->pad); return 0; } =20 @@ -1157,11 +1207,14 @@ static int ov5645_probe(struct i2c_client *client) ov5645->sd.internal_ops =3D &ov5645_internal_ops; 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Fri, 18 Oct 2024 08:33:03 -0700 (PDT) Received: from localhost.localdomain ([2a06:5906:61b:2d00:d416:f456:3869:adaf]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4316067e7b9sm30615595e9.6.2024.10.18.08.33.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 18 Oct 2024 08:33:03 -0700 (PDT) From: Prabhakar X-Google-Original-From: Prabhakar To: Laurent Pinchart , Sakari Ailus , Mauro Carvalho Chehab , Hans Verkuil Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Prabhakar , Biju Das , Fabrizio Castro , Lad Prabhakar Subject: [PATCH v3 10/10] media: i2c: ov5645: Report internal routes to userspace Date: Fri, 18 Oct 2024 16:32:30 +0100 Message-ID: <20241018153230.235647-11-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241018153230.235647-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20241018153230.235647-1-prabhakar.mahadev-lad.rj@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Lad Prabhakar Usage of internal pads creates a route internal to the subdev, and the V4L2 camera sensor API requires such routes to be reported to userspace. Create the route in the .init_state() operation. Internal routing support requires stream support, so set the V4L2_SUBDEV_FL_HAS_STREAMS flag and switch formats and selection rectangles access from pads to streams. As the route is immutable, there's no need to implement the .set_routing() operation, and we can hardcode the sink and source stream IDs to 0. Signed-off-by: Lad Prabhakar Tested-by: Tommaso Merciai --- drivers/media/i2c/ov5645.c | 23 ++++++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-) diff --git a/drivers/media/i2c/ov5645.c b/drivers/media/i2c/ov5645.c index a3353992594b..da6adb7134cf 100644 --- a/drivers/media/i2c/ov5645.c +++ b/drivers/media/i2c/ov5645.c @@ -971,15 +971,36 @@ static int ov5645_set_format(struct v4l2_subdev *sd, static int ov5645_init_state(struct v4l2_subdev *subdev, struct v4l2_subdev_state *sd_state) { + struct v4l2_subdev_route routes[1] =3D { + { + .sink_pad =3D OV5645_PAD_IMAGE, + .sink_stream =3D 0, + .source_pad =3D OV5645_PAD_SOURCE, + .source_stream =3D 0, + .flags =3D V4L2_SUBDEV_ROUTE_FL_ACTIVE | + V4L2_SUBDEV_ROUTE_FL_IMMUTABLE, + }, + }; + struct v4l2_subdev_krouting routing =3D { + .len_routes =3D ARRAY_SIZE(routes), + .num_routes =3D ARRAY_SIZE(routes), + .routes =3D routes, + }; struct v4l2_subdev_format fmt =3D { .which =3D V4L2_SUBDEV_FORMAT_TRY, .pad =3D OV5645_PAD_SOURCE, + .stream =3D 0, .format =3D { .code =3D MEDIA_BUS_FMT_UYVY8_1X16, .width =3D ov5645_mode_info_data[1].width, .height =3D ov5645_mode_info_data[1].height, }, }; + int ret; + + ret =3D v4l2_subdev_set_routing(subdev, sd_state, &routing); + if (ret) + return ret; =20 ov5645_set_format(subdev, sd_state, &fmt); =20 @@ -1206,7 +1227,7 @@ static int ov5645_probe(struct i2c_client *client) v4l2_i2c_subdev_init(&ov5645->sd, client, &ov5645_subdev_ops); ov5645->sd.internal_ops =3D &ov5645_internal_ops; ov5645->sd.flags |=3D V4L2_SUBDEV_FL_HAS_DEVNODE | - V4L2_SUBDEV_FL_HAS_EVENTS; + V4L2_SUBDEV_FL_HAS_EVENTS | V4L2_SUBDEV_FL_STREAMS; ov5645->pads[OV5645_PAD_SOURCE].flags =3D MEDIA_PAD_FL_SOURCE; ov5645->pads[OV5645_PAD_IMAGE].flags =3D MEDIA_PAD_FL_SINK | MEDIA_PAD_FL_INTERNAL; --=20 2.43.0