From patchwork Mon Jun 18 08:06:59 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Todor Tomov X-Patchwork-Id: 138862 Delivered-To: patch@linaro.org Received: by 2002:a2e:970d:0:0:0:0:0 with SMTP id r13-v6csp3659309lji; Mon, 18 Jun 2018 01:07:22 -0700 (PDT) X-Google-Smtp-Source: ADUXVKLcsIo/vBw+yWagssZI9SrJfQq7gwOGtGDWKIEDkikLP1cSJ75ihya3thBobbCdJIPiYztY X-Received: by 2002:a65:630b:: with SMTP id g11-v6mr9984754pgv.303.1529309242550; Mon, 18 Jun 2018 01:07:22 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1529309242; cv=none; d=google.com; s=arc-20160816; b=KiuJy/E6PYIojg8AETrGD/jwQYeUEO4CNf50EqBBDAeozvmL0zxwIEePKGNixVVwxQ xoOcPJ1cfz+yVwgISkZ6QqFNpKM/Hi433T+LZ/UCpI2cu0dyLk4FRdwy7ye8cVWgqtt+ eGapbwkd6kftQIOVbGBXw3d3gCTq3Fx0FXzbWPTy7CbtrhSeicMxcJgW1GkxULsQU0+w xX9E+fI1ke6RCPP49TJk19mRM4DoVwZ7BFNaFn+m9/1GS/+CF33TWrxqgoYb1JTkfgE0 tCqo3icYVnGOxOjJ3WIaytqDxbVIuckfA4Ziadg2rUyRgYC25WqBCgDg89u93MWafbaq K5xw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:references:in-reply-to:message-id:date :subject:cc:to:from:arc-authentication-results; bh=5VWHRA5cG2ONah/USaTdKZ590Mi1TR0BavMz+GTkZb4=; b=gb/XjiQILPb86RdL8gvkyuUjHtKO4LAjh0rKNgT1tA5PHzVTm0Wgp+FpbUh6uA0iaz m9xtJ5wYQ16m69wn2liFZOzCYszR+Jr31yU14khQ2Qn9e/3qAo7u7lrP4NANmzEAgaGD sow+pUeFoBx1OC/F2YUvjzhO1gHQAuRTC2XVruIHzofRv7GIoyyAc2/2RxmDZhu1UVJ7 5Z8TbZbswUMalmm3iSMNbb0x5LPPRE6CvOZZ1fYhApJFWat12+Kejni9ThRmf8grZhAJ U7nc9mJ/LpRXbP9uBmJCD3c90mkn7kq9GTUfD1o84Ts6NK+xpiWDpzw+Z+Dh3DE7QQgF mjPw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=linaro.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id o184-v6si11756067pga.92.2018.06.18.01.07.22; Mon, 18 Jun 2018 01:07:22 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933468AbeFRIHT (ORCPT + 30 others); Mon, 18 Jun 2018 04:07:19 -0400 Received: from ns.mm-sol.com ([37.157.136.199]:60036 "EHLO extserv.mm-sol.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932792AbeFRIHQ (ORCPT ); Mon, 18 Jun 2018 04:07:16 -0400 Received: from mms-0439.qualcomm.mm-sol.com (unknown [37.157.136.206]) by extserv.mm-sol.com (Postfix) with ESMTPSA id 2D42BCD33; Mon, 18 Jun 2018 11:07:15 +0300 (EEST) From: Todor Tomov To: mchehab@kernel.org, sakari.ailus@linux.intel.com, linux-media@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Todor Tomov Subject: [PATCH 2/2] media: ov5645: Report number of skip frames Date: Mon, 18 Jun 2018 11:06:59 +0300 Message-Id: <1529309219-27404-2-git-send-email-todor.tomov@linaro.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1529309219-27404-1-git-send-email-todor.tomov@linaro.org> References: <1529309219-27404-1-git-send-email-todor.tomov@linaro.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The OV5645 supports automatic exposure (AE) and automatic white balance (AWB). When streaming is started it takes up to 5 frames until the AE and AWB converge and output a frame with good quality. Implement g_skip_frames to report number of frames to be skipped when streaming is started. Signed-off-by: Todor Tomov --- drivers/media/i2c/ov5645.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) -- 2.7.4 diff --git a/drivers/media/i2c/ov5645.c b/drivers/media/i2c/ov5645.c index 1722cda..00bc3c0 100644 --- a/drivers/media/i2c/ov5645.c +++ b/drivers/media/i2c/ov5645.c @@ -70,6 +70,9 @@ #define OV5645_SDE_SAT_U 0x5583 #define OV5645_SDE_SAT_V 0x5584 +/* Number of frames needed for AE and AWB to converge */ +#define OV5645_NUM_OF_SKIP_FRAMES 5 + struct reg_value { u16 reg; u8 val; @@ -1071,6 +1074,13 @@ static int ov5645_s_stream(struct v4l2_subdev *subdev, int enable) return 0; } +static int ov5645_get_skip_frames(struct v4l2_subdev *sd, u32 *frames) +{ + *frames = OV5645_NUM_OF_SKIP_FRAMES; + + return 0; +} + static const struct v4l2_subdev_core_ops ov5645_core_ops = { .s_power = ov5645_s_power, }; @@ -1088,10 +1098,15 @@ static const struct v4l2_subdev_pad_ops ov5645_subdev_pad_ops = { .get_selection = ov5645_get_selection, }; +static const struct v4l2_subdev_sensor_ops ov5645_sensor_ops = { + .g_skip_frames = ov5645_get_skip_frames, +}; + static const struct v4l2_subdev_ops ov5645_subdev_ops = { .core = &ov5645_core_ops, .video = &ov5645_video_ops, .pad = &ov5645_subdev_pad_ops, + .sensor = &ov5645_sensor_ops, }; static int ov5645_probe(struct i2c_client *client,