From patchwork Wed Oct 9 12:35:08 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benoit Parrot X-Patchwork-Id: 11181151 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C16EF1575 for ; Wed, 9 Oct 2019 12:32:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A141D21924 for ; Wed, 9 Oct 2019 12:32:49 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="B04y+Unf" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731183AbfJIMcq (ORCPT ); Wed, 9 Oct 2019 08:32:46 -0400 Received: from fllv0015.ext.ti.com ([198.47.19.141]:38008 "EHLO fllv0015.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727029AbfJIMco (ORCPT ); Wed, 9 Oct 2019 08:32:44 -0400 Received: from fllv0034.itg.ti.com ([10.64.40.246]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id x99CWcmR078367; Wed, 9 Oct 2019 07:32:38 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1570624358; bh=0qKzBdXqB1Y5415oJEapjmDF/1xOO/DjBM2lHReI6hc=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=B04y+UnfsI+XIbC+djTq/mP55oSlkzVUwDbh0sAjLLReI3mN2B7r70JZo2wBPR6Sd Ibi4iBSXcw6QXUo60tOwZccA4iB/IFNYuoHU6X/kSM+oSTK2GaOPwmhUOtRXLNrSII P3nfO7MkGc4aKZB9ZgyF6Cx6m//Z99UILo9NCHNU= Received: from DFLE109.ent.ti.com (dfle109.ent.ti.com [10.64.6.30]) by fllv0034.itg.ti.com (8.15.2/8.15.2) with ESMTPS id x99CWcQ6090486 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 9 Oct 2019 07:32:38 -0500 Received: from DFLE112.ent.ti.com (10.64.6.33) by DFLE109.ent.ti.com (10.64.6.30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5; Wed, 9 Oct 2019 07:32:35 -0500 Received: from fllv0040.itg.ti.com (10.64.41.20) by DFLE112.ent.ti.com (10.64.6.33) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5 via Frontend Transport; Wed, 9 Oct 2019 07:32:35 -0500 Received: from uda0869644b.dal.design.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by fllv0040.itg.ti.com (8.15.2/8.15.2) with ESMTP id x99CWbNQ081004; Wed, 9 Oct 2019 07:32:38 -0500 From: Benoit Parrot To: Sakari Ailus , Hans Verkuil CC: Jacopo Mondi , , , , Benoit Parrot Subject: [Patch v4 1/3] media: ov5640: add PIXEL_RATE control Date: Wed, 9 Oct 2019 07:35:08 -0500 Message-ID: <20191009123510.19106-2-bparrot@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191009123510.19106-1-bparrot@ti.com> References: <20191009123510.19106-1-bparrot@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Add v4l2 controls to report the pixel rates of each mode. This is needed by some CSI2 receiver in order to perform proper DPHY configuration. Signed-off-by: Benoit Parrot --- drivers/media/i2c/ov5640.c | 25 +++++++++++++++++++++++-- 1 file changed, 23 insertions(+), 2 deletions(-) diff --git a/drivers/media/i2c/ov5640.c b/drivers/media/i2c/ov5640.c index 500d9bbff10b..b93b61baace5 100644 --- a/drivers/media/i2c/ov5640.c +++ b/drivers/media/i2c/ov5640.c @@ -193,6 +193,7 @@ struct ov5640_mode_info { struct ov5640_ctrls { struct v4l2_ctrl_handler handler; + struct v4l2_ctrl *pixel_rate; struct { struct v4l2_ctrl *auto_exp; struct v4l2_ctrl *exposure; @@ -1614,6 +1615,16 @@ ov5640_find_mode(struct ov5640_dev *sensor, enum ov5640_frame_rate fr, return mode; } +static u64 ov5640_calc_pixel_rate(struct ov5640_dev *sensor) +{ + u64 rate; + + rate = sensor->current_mode->vtot * sensor->current_mode->htot; + rate *= ov5640_framerates[sensor->current_fr]; + + return rate; +} + /* * sensor changes between scaling and subsampling, go through * exposure calculation @@ -1818,8 +1829,7 @@ static int ov5640_set_mode(struct ov5640_dev *sensor) * All the formats we support have 16 bits per pixel, seems to require * the same rate than YUV, so we can just use 16 bpp all the time. */ - rate = mode->vtot * mode->htot * 16; - rate *= ov5640_framerates[sensor->current_fr]; + rate = ov5640_calc_pixel_rate(sensor) * 16; if (sensor->ep.bus_type == V4L2_MBUS_CSI2_DPHY) { rate = rate / sensor->ep.bus.mipi_csi2.num_data_lanes; ret = ov5640_set_mipi_pclk(sensor, rate); @@ -2233,6 +2243,8 @@ static int ov5640_set_fmt(struct v4l2_subdev *sd, if (mbus_fmt->code != sensor->fmt.code) sensor->pending_fmt_change = true; + __v4l2_ctrl_s_ctrl_int64(sensor->ctrls.pixel_rate, + ov5640_calc_pixel_rate(sensor)); out: mutex_unlock(&sensor->lock); return ret; @@ -2657,6 +2669,11 @@ static int ov5640_init_controls(struct ov5640_dev *sensor) /* we can use our own mutex for the ctrl lock */ hdl->lock = &sensor->lock; + /* Clock related controls */ + ctrls->pixel_rate = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_PIXEL_RATE, + 0, INT_MAX, 1, + ov5640_calc_pixel_rate(sensor)); + /* Auto/manual white balance */ ctrls->auto_wb = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_AUTO_WHITE_BALANCE, @@ -2704,6 +2721,7 @@ static int ov5640_init_controls(struct ov5640_dev *sensor) goto free_ctrls; } + ctrls->pixel_rate->flags |= V4L2_CTRL_FLAG_READ_ONLY; ctrls->gain->flags |= V4L2_CTRL_FLAG_VOLATILE; ctrls->exposure->flags |= V4L2_CTRL_FLAG_VOLATILE; @@ -2816,6 +2834,9 @@ static int ov5640_s_frame_interval(struct v4l2_subdev *sd, sensor->frame_interval = fi->interval; sensor->current_mode = mode; sensor->pending_mode_change = true; + + __v4l2_ctrl_s_ctrl_int64(sensor->ctrls.pixel_rate, + ov5640_calc_pixel_rate(sensor)); } out: mutex_unlock(&sensor->lock);