From nobody Tue Oct 7 01:53:53 2025 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 0E4C42F002A; Wed, 16 Jul 2025 09:07:28 +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=1752656849; cv=none; b=jHoTgZESjzjTTawAAE0c1aSSyoH02mMNjRJvCM9V6Wx3eqlQuAbasL73LIXJh1tzTGPNWSlRuxML5BmbD2R9CrqTKMQqlu7E+KIayC0bk2IRfbpp2oar+dqUWb6FonmqsJaeWbkPGhKqrP7xHEKk3h4KFExk++LtE/B6bVMBZxU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752656849; c=relaxed/simple; bh=gr3klb2qn/si0DKlrwgsy7RcVLdFswJfwWGpC4vYwHU=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=qSWZSTJqNn1bjwHZ6HPGGINixhptYisU4Wy/cNMDRKmrqt6KIBhdhSKDsSJDXdSBh8d4oqQhcVFzBYS9Jkz167CA/OYZSDTzDlEOudiCkIstaWzwmIlkPi0DEMgGx+goeVye++goJeCH3sKvgGJn6te+9MmT6AqFBZ7/ee1JVyQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=jlbVdEv2; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="jlbVdEv2" Received: by smtp.kernel.org (Postfix) with ESMTPS id 87DA3C4CEF7; Wed, 16 Jul 2025 09:07:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux.dev; s=korg; t=1752656848; bh=gr3klb2qn/si0DKlrwgsy7RcVLdFswJfwWGpC4vYwHU=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=jlbVdEv23bSJIVPXAiYmoDhI54KK8+I2HlyNp0ibloUXltnAfpfZQggo1lu7PCGHf xyw2LiSIWNTUohp4rH+ys+wFczuTvESuRqW7FPSs/b8Eg051UtbT1H34LmBu7zgk5P RzJlCFNYfzrLj+29AOORWhdO6mwi6o1+Hb5WHC48= 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 7AB58C83F34; Wed, 16 Jul 2025 09:07:28 +0000 (UTC) From: Richard Leitner Date: Wed, 16 Jul 2025 11:06:52 +0200 Subject: [PATCH v6 02/11] media: v4l2-flash: add support for flash/strobe duration Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250716-ov9282-flash-strobe-v6-2-934f12aeff33@linux.dev> References: <20250716-ov9282-flash-strobe-v6-0-934f12aeff33@linux.dev> In-Reply-To: <20250716-ov9282-flash-strobe-v6-0-934f12aeff33@linux.dev> To: Sakari Ailus , Dave Stevenson , Mauro Carvalho Chehab , Lee Jones , Pavel Machek , Laurent Pinchart Cc: Hans Verkuil , linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-leds@vger.kernel.org, Richard Leitner X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1752656846; l=2308; i=richard.leitner@linux.dev; s=20250225; h=from:subject:message-id; bh=gr3klb2qn/si0DKlrwgsy7RcVLdFswJfwWGpC4vYwHU=; b=px+x9vE68LStX/ralvumHYmo9bqPNJpgMqwVzRd1Y2yGTgcdLwXo5m//qJDFo25dv5XhLFm+D vMbnpH40fLNBCN2hOb+RbWApZIL3U1KQRlobj4tQayhty5JNWxKd4tC X-Developer-Key: i=richard.leitner@linux.dev; a=ed25519; pk=8hZNyyyQFqZ5ruVJsSGBSPIrmJpfDm5HwHU4QVOP1Pk= X-Endpoint-Received: by B4 Relay for richard.leitner@linux.dev/20250225 with auth_id=350 Add support for the new V4L2_CID_FLASH_DURATION control to the v4l2 flash led class. Signed-off-by: Richard Leitner --- drivers/media/v4l2-core/v4l2-flash-led-class.c | 25 ++++++++++++++++++++++= +++ 1 file changed, 25 insertions(+) diff --git a/drivers/media/v4l2-core/v4l2-flash-led-class.c b/drivers/media= /v4l2-core/v4l2-flash-led-class.c index 355595a0fefac72c2f6941a30fa430d37dbdccfe..875d56d7190592c1e5ab7acd617= b76dcec8792da 100644 --- a/drivers/media/v4l2-core/v4l2-flash-led-class.c +++ b/drivers/media/v4l2-core/v4l2-flash-led-class.c @@ -29,6 +29,7 @@ enum ctrl_init_data_id { INDICATOR_INTENSITY, FLASH_TIMEOUT, STROBE_SOURCE, + FLASH_DURATION, /* * Only above values are applicable to * the 'ctrls' array in the struct v4l2_flash. @@ -298,6 +299,12 @@ static int v4l2_flash_s_ctrl(struct v4l2_ctrl *c) * microamperes for flash intensity units. */ return led_set_flash_brightness(fled_cdev, c->val); + case V4L2_CID_FLASH_DURATION: + /* + * No conversion is needed as LED Flash class also uses + * microseconds for flash duration units. + */ + return led_set_flash_duration(fled_cdev, c->val); } =20 return -EINVAL; @@ -424,6 +431,14 @@ static void __fill_ctrl_init_data(struct v4l2_flash *v= 4l2_flash, ctrl_cfg->flags =3D V4L2_CTRL_FLAG_VOLATILE | V4L2_CTRL_FLAG_EXECUTE_ON_WRITE; } + + /* Init FLASH_DURATION ctrl data */ + if (has_flash_op(fled_cdev, duration_set)) { + ctrl_init_data[FLASH_DURATION].cid =3D V4L2_CID_FLASH_DURATION; + ctrl_cfg =3D &ctrl_init_data[FLASH_DURATION].config; + __lfs_to_v4l2_ctrl_config(&fled_cdev->duration, ctrl_cfg); + ctrl_cfg->id =3D V4L2_CID_FLASH_DURATION; + } } =20 static int v4l2_flash_init_controls(struct v4l2_flash *v4l2_flash, @@ -543,6 +558,16 @@ static int __sync_device_with_v4l2_controls(struct v4l= 2_flash *v4l2_flash) return ret; } =20 + if (ctrls[FLASH_DURATION]) { + if (WARN_ON_ONCE(!fled_cdev)) + return -EINVAL; + + ret =3D led_set_flash_duration(fled_cdev, + ctrls[FLASH_DURATION]->val); + if (ret < 0) + return ret; + } + /* * For some hardware arrangements setting strobe source may affect * torch mode. Synchronize strobe source setting only if not in torch --=20 2.47.2