From patchwork Thu Mar 28 20:06:02 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Jacopo Mondi X-Patchwork-Id: 10875909 X-Patchwork-Delegate: kieran@bingham.xyz Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 0BED4186D for ; Thu, 28 Mar 2019 20:06:26 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E6C0F28E34 for ; Thu, 28 Mar 2019 20:06:25 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id DB18328F53; Thu, 28 Mar 2019 20:06:25 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7D43B28E34 for ; Thu, 28 Mar 2019 20:06:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726681AbfC1UGZ (ORCPT ); Thu, 28 Mar 2019 16:06:25 -0400 Received: from relay4-d.mail.gandi.net ([217.70.183.196]:41871 "EHLO relay4-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726281AbfC1UGZ (ORCPT ); Thu, 28 Mar 2019 16:06:25 -0400 X-Originating-IP: 2.224.242.101 Received: from uno.lan (2-224-242-101.ip172.fastwebnet.it [2.224.242.101]) (Authenticated sender: jacopo@jmondi.org) by relay4-d.mail.gandi.net (Postfix) with ESMTPSA id 8C072E001F; Thu, 28 Mar 2019 20:06:21 +0000 (UTC) From: Jacopo Mondi To: sakari.ailus@linux.intel.com, laurent.pinchart@ideasonboard.com, niklas.soderlund+renesas@ragnatech.se Cc: Jacopo Mondi , luca@lucaceresoli.net, ian.arkver.dev@gmail.com, linux-media@vger.kernel.org, linux-renesas-soc@vger.kernel.org Subject: [PATCH v4 25/31] adv748x: csi2: describe the multiplexed stream Date: Thu, 28 Mar 2019 21:06:02 +0100 Message-Id: <20190328200608.9463-26-jacopo+renesas@jmondi.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190328200608.9463-1-jacopo+renesas@jmondi.org> References: <20190328200608.9463-1-jacopo+renesas@jmondi.org> MIME-Version: 1.0 Sender: linux-renesas-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Niklas Söderlund The adv748x CSI-2 transmitter can only transmit one stream over the CSI-2 link, however it can choose which virtual channel is used. This choice effects the CSI-2 receiver and needs to be captured in the frame descriptor information, solve this by implementing .get_frame_desc(). Signed-off-by: Niklas Söderlund Reviewed-by: Jacopo Mondi --- drivers/media/i2c/adv748x/adv748x-csi2.c | 31 +++++++++++++++++++++++- drivers/media/i2c/adv748x/adv748x.h | 1 + 2 files changed, 31 insertions(+), 1 deletion(-) diff --git a/drivers/media/i2c/adv748x/adv748x-csi2.c b/drivers/media/i2c/adv748x/adv748x-csi2.c index 1abe34183d7d..d8f7cbee86e7 100644 --- a/drivers/media/i2c/adv748x/adv748x-csi2.c +++ b/drivers/media/i2c/adv748x/adv748x-csi2.c @@ -226,9 +226,37 @@ static int adv748x_csi2_set_format(struct v4l2_subdev *sd, return ret; } +static int adv748x_csi2_get_frame_desc(struct v4l2_subdev *sd, unsigned int pad, + struct v4l2_mbus_frame_desc *fd) +{ + struct adv748x_csi2 *tx = adv748x_sd_to_csi2(sd); + struct v4l2_mbus_framefmt *mbusformat; + + memset(fd, 0, sizeof(*fd)); + + if (pad != ADV748X_CSI2_SOURCE) + return -EINVAL; + + mbusformat = adv748x_csi2_get_pad_format(sd, NULL, ADV748X_CSI2_SINK, + V4L2_SUBDEV_FORMAT_ACTIVE); + if (!mbusformat) + return -EINVAL; + + fd->entry->stream = tx->vc; + fd->entry->bus.csi2.channel = tx->vc; + fd->entry->bus.csi2.data_type = + adv748x_csi2_code_to_datatype(mbusformat->code); + + fd->type = V4L2_MBUS_FRAME_DESC_TYPE_CSI2; + fd->num_entries = 1; + + return 0; +} + static const struct v4l2_subdev_pad_ops adv748x_csi2_pad_ops = { .get_fmt = adv748x_csi2_get_format, .set_fmt = adv748x_csi2_set_format, + .get_frame_desc = adv748x_csi2_get_frame_desc, }; /* ----------------------------------------------------------------------------- @@ -295,7 +323,8 @@ int adv748x_csi2_init(struct adv748x_state *state, struct adv748x_csi2 *tx) return 0; /* Initialise the virtual channel */ - adv748x_csi2_set_virtual_channel(tx, 0); + tx->vc = 0; + adv748x_csi2_set_virtual_channel(tx, tx->vc); adv748x_subdev_init(&tx->sd, state, &adv748x_csi2_ops, MEDIA_ENT_F_VID_IF_BRIDGE, diff --git a/drivers/media/i2c/adv748x/adv748x.h b/drivers/media/i2c/adv748x/adv748x.h index 5042f9e94aee..4a5a6445604f 100644 --- a/drivers/media/i2c/adv748x/adv748x.h +++ b/drivers/media/i2c/adv748x/adv748x.h @@ -75,6 +75,7 @@ enum adv748x_csi2_pads { struct adv748x_csi2 { struct adv748x_state *state; + unsigned int vc; struct v4l2_mbus_framefmt format; unsigned int page; unsigned int port;