From patchwork Mon Sep 2 21:54:28 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Andr=C3=A9_Apitzsch_via_B4_Relay?= X-Patchwork-Id: 824793 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 AD51C1714A4; Mon, 2 Sep 2024 21:53:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725314031; cv=none; b=L8msFdcxl7h6MsPakwzoEbTlRxpI1oRTkdgPQWWWeTYZy6pMmnc55j7dOXekMEFV9K9U1v0CCqZK2Fwwd2WQ3Wker0BTvG1UMht1Yq4AgFdEB0xf8NI/l5eIYY0dfK+u722QZplWG0WTPoveQfrhlp+6m23Nur3GJmzm0jFHYWE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725314031; c=relaxed/simple; bh=+0VYzHcIP4F/AHqO/v5VwN11p0LblPczRDTvcMN32r8=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=mr61DguG/foYXPAXfDpsahxMUvVZDH9niate/xZq0ATWSEVEl+vEpCHOu2saZ/oc4/sWkQm6eEoFANG/wO3bwzp/VCBecGRyyUjE4TMheJJCo9MVjTGSuvdVbqRycD2YIGSI3CDfeo3+RQujcIx6zxij3h5fqfY86iF70aE7jcs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=B4bT5v1b; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="B4bT5v1b" Received: by smtp.kernel.org (Postfix) with ESMTPS id 581BAC4CEC8; Mon, 2 Sep 2024 21:53:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1725314031; bh=+0VYzHcIP4F/AHqO/v5VwN11p0LblPczRDTvcMN32r8=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=B4bT5v1bF2oeTp9GEdU1XsBuME6NSKCxdhUPhwhqUIJgsZL7oL8n7JdFGXy3jErZF We8YeJFU05yporBgN2xneGw25M9uZjcBgGH6KveVbB70g9BA5fv0YSoNCWTBJVu4xa 9nofwr81NuO70pO9Md/4W1pjc/qpLHVc5p/myw7+n3mlOqfYrJYM9dLTc1xaQh+Ebb rs9VoUB2SuMWoIiderhPSTexHxg1Eej6/VMox3TWggevt7a0/9HjhMrsMAZVvXIzyZ qZMMwF9Husjfn/kyAy4pKUcENr4uLb6k3RdRIUgqinnkaE6ddOPlqY9poZ1P+k7MtQ v3PqJ/D0Alj0A== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4607BCD13CF; Mon, 2 Sep 2024 21:53:51 +0000 (UTC) From: =?utf-8?q?Andr=C3=A9_Apitzsch_via_B4_Relay?= Date: Mon, 02 Sep 2024 23:54:28 +0200 Subject: [PATCH 01/13] media: i2c: imx214: Use subdev active state Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240902-imx214-v1-1-c96cba989315@apitzsch.eu> References: <20240902-imx214-v1-0-c96cba989315@apitzsch.eu> In-Reply-To: <20240902-imx214-v1-0-c96cba989315@apitzsch.eu> To: Ricardo Ribalda , Sakari Ailus , Mauro Carvalho Chehab Cc: ~postmarketos/upstreaming@lists.sr.ht, phone-devel@vger.kernel.org, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, =?utf-8?q?Andr?= =?utf-8?q?=C3=A9_Apitzsch?= X-Mailer: b4 0.14.1 X-Developer-Signature: v=1; a=ed25519-sha256; t=1725314079; l=8246; i=git@apitzsch.eu; s=20240325; h=from:subject:message-id; bh=GSIvrjeyr0c3Vcgp4vX1yQm8ICyOnNIrdUp3+1ZKcBE=; b=DjURmWWKkFnTVgrdV68Hf7ABbSA1KGBmSIByy9jKDbPgfZ4OfUBT7v6KWX4sPRw8P5yKVPG9b AFwhS+WJb/tBYr5F7trObOd1jtGXJf2t4G0gBMfGP/cvhy+AYVBti2m X-Developer-Key: i=git@apitzsch.eu; a=ed25519; pk=wxovcZRfvNYBMcTw4QFFtNEP4qv39gnBfnfyImXZxiU= X-Endpoint-Received: by B4 Relay for git@apitzsch.eu/20240325 with auth_id=142 X-Original-From: =?utf-8?q?Andr=C3=A9_Apitzsch?= Reply-To: git@apitzsch.eu From: André Apitzsch Port the imx214 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: André Apitzsch --- drivers/media/i2c/imx214.c | 129 +++++++++++++-------------------------------- 1 file changed, 38 insertions(+), 91 deletions(-) diff --git a/drivers/media/i2c/imx214.c b/drivers/media/i2c/imx214.c index 4962cfe7c83d..58f3c3f67e0d 100644 --- a/drivers/media/i2c/imx214.c +++ b/drivers/media/i2c/imx214.c @@ -71,12 +71,6 @@ struct imx214 { struct regulator_bulk_data supplies[IMX214_NUM_SUPPLIES]; struct gpio_desc *enable_gpio; - - /* - * Serialize control access, get/set format, get selection - * and start streaming. - */ - struct mutex mutex; }; struct reg_8 { @@ -490,6 +484,22 @@ static int __maybe_unused imx214_power_off(struct device *dev) return 0; } +static void imx214_update_pad_format(struct imx214 *imx214, + const struct imx214_mode *mode, + struct v4l2_mbus_framefmt *fmt, u32 code) +{ + fmt->code = IMX214_MBUS_CODE; + fmt->width = mode->width; + fmt->height = mode->height; + fmt->field = V4L2_FIELD_NONE; + fmt->colorspace = V4L2_COLORSPACE_SRGB; + fmt->ycbcr_enc = V4L2_MAP_YCBCR_ENC_DEFAULT(fmt->colorspace); + fmt->quantization = V4L2_MAP_QUANTIZATION_DEFAULT(true, + fmt->colorspace, + fmt->ycbcr_enc); + fmt->xfer_func = V4L2_MAP_XFER_FUNC_DEFAULT(fmt->colorspace); +} + static int imx214_enum_mbus_code(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_mbus_code_enum *code) @@ -549,52 +559,6 @@ static const struct v4l2_subdev_core_ops imx214_core_ops = { #endif }; -static struct v4l2_mbus_framefmt * -__imx214_get_pad_format(struct imx214 *imx214, - 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 &imx214->fmt; - default: - return NULL; - } -} - -static int imx214_get_format(struct v4l2_subdev *sd, - struct v4l2_subdev_state *sd_state, - struct v4l2_subdev_format *format) -{ - struct imx214 *imx214 = to_imx214(sd); - - mutex_lock(&imx214->mutex); - format->format = *__imx214_get_pad_format(imx214, sd_state, - format->pad, - format->which); - mutex_unlock(&imx214->mutex); - - return 0; -} - -static struct v4l2_rect * -__imx214_get_pad_crop(struct imx214 *imx214, - 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 &imx214->crop; - default: - return NULL; - } -} - static int imx214_set_format(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *format) @@ -604,34 +568,19 @@ static int imx214_set_format(struct v4l2_subdev *sd, struct v4l2_rect *__crop; const struct imx214_mode *mode; - mutex_lock(&imx214->mutex); - - __crop = __imx214_get_pad_crop(imx214, sd_state, format->pad, - format->which); - mode = v4l2_find_nearest_size(imx214_modes, ARRAY_SIZE(imx214_modes), width, height, format->format.width, format->format.height); - __crop->width = mode->width; - __crop->height = mode->height; + imx214_update_pad_format(imx214, mode, &format->format, format->format.code); - __format = __imx214_get_pad_format(imx214, sd_state, format->pad, - format->which); - __format->width = __crop->width; - __format->height = __crop->height; - __format->code = IMX214_MBUS_CODE; - __format->field = V4L2_FIELD_NONE; - __format->colorspace = V4L2_COLORSPACE_SRGB; - __format->ycbcr_enc = V4L2_MAP_YCBCR_ENC_DEFAULT(__format->colorspace); - __format->quantization = V4L2_MAP_QUANTIZATION_DEFAULT(true, - __format->colorspace, __format->ycbcr_enc); - __format->xfer_func = V4L2_MAP_XFER_FUNC_DEFAULT(__format->colorspace); + __format = v4l2_subdev_state_get_format(sd_state, 0); + *__format = format->format; - format->format = *__format; - - mutex_unlock(&imx214->mutex); + __crop = v4l2_subdev_state_get_crop(sd_state, 0); + __crop->width = mode->width; + __crop->height = mode->height; return 0; } @@ -640,14 +589,9 @@ static int imx214_get_selection(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_selection *sel) { - struct imx214 *imx214 = to_imx214(sd); - switch (sel->target) { case V4L2_SEL_TGT_CROP: - mutex_lock(&imx214->mutex); - sel->r = *__imx214_get_pad_crop(imx214, sd_state, sel->pad, - sel->which); - mutex_unlock(&imx214->mutex); + sel->r = *v4l2_subdev_state_get_crop(sd_state, 0); return 0; case V4L2_SEL_TGT_NATIVE_SIZE: @@ -829,7 +773,6 @@ static int imx214_start_streaming(struct imx214 *imx214) const struct imx214_mode *mode; int ret; - mutex_lock(&imx214->mutex); ret = imx214_write_table(imx214, mode_table_common); if (ret < 0) { dev_err(imx214->dev, "could not sent common table %d\n", ret); @@ -855,11 +798,9 @@ static int imx214_start_streaming(struct imx214 *imx214) goto error; } - mutex_unlock(&imx214->mutex); return 0; error: - mutex_unlock(&imx214->mutex); return ret; } @@ -877,6 +818,7 @@ static int imx214_stop_streaming(struct imx214 *imx214) static int imx214_s_stream(struct v4l2_subdev *subdev, int enable) { struct imx214 *imx214 = to_imx214(subdev); + struct v4l2_subdev_state *state; int ret; if (enable) { @@ -884,7 +826,9 @@ static int imx214_s_stream(struct v4l2_subdev *subdev, int enable) if (ret < 0) return ret; + state = v4l2_subdev_lock_and_get_active_state(subdev); ret = imx214_start_streaming(imx214); + v4l2_subdev_unlock_state(state); if (ret < 0) goto err_rpm_put; } else { @@ -948,7 +892,7 @@ static const struct v4l2_subdev_pad_ops imx214_subdev_pad_ops = { .enum_mbus_code = imx214_enum_mbus_code, .enum_frame_size = imx214_enum_frame_size, .enum_frame_interval = imx214_enum_frame_interval, - .get_fmt = imx214_get_format, + .get_fmt = v4l2_subdev_get_fmt, .set_fmt = imx214_set_format, .get_selection = imx214_get_selection, .get_frame_interval = imx214_get_frame_interval, @@ -1083,9 +1027,6 @@ static int imx214_probe(struct i2c_client *client) if (ret < 0) goto error_power_off; - mutex_init(&imx214->mutex); - imx214->ctrls.lock = &imx214->mutex; - imx214->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; imx214->pad.flags = MEDIA_PAD_FL_SOURCE; imx214->sd.dev = &client->dev; @@ -1097,20 +1038,27 @@ static int imx214_probe(struct i2c_client *client) goto free_ctrl; } - imx214_entity_init_state(&imx214->sd, NULL); + imx214->sd.state_lock = imx214->ctrls.lock; + ret = v4l2_subdev_init_finalize(&imx214->sd); + if (ret < 0) { + dev_err(dev, "subdev init error: %d\n", ret); + goto free_entity; + } ret = v4l2_async_register_subdev_sensor(&imx214->sd); if (ret < 0) { dev_err(dev, "could not register v4l2 device\n"); - goto free_entity; + goto error_subdev_cleanup; } return 0; +error_subdev_cleanup: + v4l2_subdev_cleanup(&imx214->sd); + free_entity: media_entity_cleanup(&imx214->sd.entity); free_ctrl: - mutex_destroy(&imx214->mutex); v4l2_ctrl_handler_free(&imx214->ctrls); error_power_off: pm_runtime_disable(imx214->dev); @@ -1125,13 +1073,12 @@ static void imx214_remove(struct i2c_client *client) struct imx214 *imx214 = to_imx214(sd); v4l2_async_unregister_subdev(&imx214->sd); + v4l2_subdev_cleanup(sd); media_entity_cleanup(&imx214->sd.entity); v4l2_ctrl_handler_free(&imx214->ctrls); pm_runtime_disable(&client->dev); pm_runtime_set_suspended(&client->dev); - - mutex_destroy(&imx214->mutex); } static const struct of_device_id imx214_of_match[] = {