From patchwork Tue Feb 28 11:38:16 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pavel Machek X-Patchwork-Id: 9595269 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 79CE560429 for ; Tue, 28 Feb 2017 11:38:28 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5FD252522B for ; Tue, 28 Feb 2017 11:38:28 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 546062818B; Tue, 28 Feb 2017 11:38:28 +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=-6.9 required=2.0 tests=BAYES_00,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 493072522B for ; Tue, 28 Feb 2017 11:38:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751686AbdB1LiY (ORCPT ); Tue, 28 Feb 2017 06:38:24 -0500 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:45310 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751452AbdB1LiX (ORCPT ); Tue, 28 Feb 2017 06:38:23 -0500 Received: by atrey.karlin.mff.cuni.cz (Postfix, from userid 512) id 5594E818F2; Tue, 28 Feb 2017 12:38:17 +0100 (CET) Date: Tue, 28 Feb 2017 12:38:16 +0100 From: Pavel Machek To: Sakari Ailus Cc: sre@kernel.org, pali.rohar@gmail.com, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, laurent.pinchart@ideasonboard.com, mchehab@kernel.org, ivo.g.dimitrov.75@gmail.com Subject: [PATCH] omap3isp: Parse CSI1 configuration from the device tree. Message-ID: <20170228113815.GA4206@amd> References: <20170220103114.GA9800@amd> <20170220130912.GT16975@valkosipuli.retiisi.org.uk> <20170220135636.GU16975@valkosipuli.retiisi.org.uk> <20170221110721.GD5021@amd> <20170221111104.GD16975@valkosipuli.retiisi.org.uk> <20170225221255.GA6411@amd> <20170227205420.GF16975@valkosipuli.retiisi.org.uk> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20170227205420.GF16975@valkosipuli.retiisi.org.uk> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add support for parsing CSI1 configuration. Signed-off-by: Pavel Machek --- > Please find my comments below. Thanks for comments. They are fixed now, plus I fixed the checkpatch stuff that was possible. It should be ready to apply to the right branch. diff --git a/drivers/media/platform/omap3isp/isp.c b/drivers/media/platform/omap3isp/isp.c index 245225a..b8eef2f 100644 --- a/drivers/media/platform/omap3isp/isp.c +++ b/drivers/media/platform/omap3isp/isp.c @@ -2032,6 +2032,7 @@ static int isp_fwnode_parse(struct device *dev, struct fwnode_handle *fwn, struct v4l2_fwnode_endpoint vfwn; unsigned int i; int ret; + bool csi1 = false; ret = v4l2_fwnode_endpoint_parse(fwn, &vfwn); if (ret) @@ -2059,38 +2060,88 @@ static int isp_fwnode_parse(struct device *dev, struct fwnode_handle *fwn, case ISP_OF_PHY_CSIPHY1: case ISP_OF_PHY_CSIPHY2: - /* FIXME: always assume CSI-2 for now. */ + switch (vfwn.bus_type) { + case V4L2_MBUS_CCP2: + case V4L2_MBUS_CSI1: + dev_dbg(dev, "csi1 configuration\n"); + csi1 = true; + break; + case V4L2_MBUS_CSI2: + dev_dbg(dev, "csi2 configuration\n"); + csi1 = false; + break; + default: + dev_err(dev, "unkonwn bus type\n"); + } + switch (vfwn.base.port) { case ISP_OF_PHY_CSIPHY1: - buscfg->interface = ISP_INTERFACE_CSI2C_PHY1; + if (csi1) + buscfg->interface = ISP_INTERFACE_CCP2B_PHY1; + else + buscfg->interface = ISP_INTERFACE_CSI2C_PHY1; break; case ISP_OF_PHY_CSIPHY2: - buscfg->interface = ISP_INTERFACE_CSI2A_PHY2; + if (csi1) + buscfg->interface = ISP_INTERFACE_CCP2B_PHY2; + else + buscfg->interface = ISP_INTERFACE_CSI2A_PHY2; break; + default: + dev_err(dev, "bad port\n"); } - buscfg->bus.csi2.lanecfg.clk.pos = vfwn.bus.mipi_csi2.clock_lane; - buscfg->bus.csi2.lanecfg.clk.pol = - vfwn.bus.mipi_csi2.lane_polarities[0]; - dev_dbg(dev, "clock lane polarity %u, pos %u\n", - buscfg->bus.csi2.lanecfg.clk.pol, - buscfg->bus.csi2.lanecfg.clk.pos); - - for (i = 0; i < ISP_CSIPHY2_NUM_DATA_LANES; i++) { - buscfg->bus.csi2.lanecfg.data[i].pos = - vfwn.bus.mipi_csi2.data_lanes[i]; - buscfg->bus.csi2.lanecfg.data[i].pol = - vfwn.bus.mipi_csi2.lane_polarities[i + 1]; + if (csi1) { + buscfg->bus.ccp2.lanecfg.clk.pos = + vfwn.bus.mipi_csi1.clock_lane; + buscfg->bus.ccp2.lanecfg.clk.pol = + vfwn.bus.mipi_csi1.lane_polarity[0]; + dev_dbg(dev, "clock lane polarity %u, pos %u\n", + buscfg->bus.ccp2.lanecfg.clk.pol, + buscfg->bus.ccp2.lanecfg.clk.pos); + + buscfg->bus.ccp2.lanecfg.data[0].pos = + vfwn.bus.mipi_csi1.data_lane; + buscfg->bus.ccp2.lanecfg.data[0].pol = + vfwn.bus.mipi_csi1.lane_polarity[1]; + dev_dbg(dev, "data lane %u polarity %u, pos %u\n", i, - buscfg->bus.csi2.lanecfg.data[i].pol, - buscfg->bus.csi2.lanecfg.data[i].pos); + buscfg->bus.ccp2.lanecfg.data[0].pol, + buscfg->bus.ccp2.lanecfg.data[0].pos); + + buscfg->bus.ccp2.strobe_clk_pol = + vfwn.bus.mipi_csi1.clock_inv; + buscfg->bus.ccp2.phy_layer = vfwn.bus.mipi_csi1.strobe; + buscfg->bus.ccp2.ccp2_mode = + vfwn.bus_type == V4L2_MBUS_CCP2; + buscfg->bus.ccp2.vp_clk_pol = 1; + + buscfg->bus.ccp2.crc = 1; + } else { + buscfg->bus.csi2.lanecfg.clk.pos = + vfwn.bus.mipi_csi2.clock_lane; + buscfg->bus.csi2.lanecfg.clk.pol = + vfwn.bus.mipi_csi2.lane_polarities[0]; + dev_dbg(dev, "clock lane polarity %u, pos %u\n", + buscfg->bus.csi2.lanecfg.clk.pol, + buscfg->bus.csi2.lanecfg.clk.pos); + + for (i = 0; i < ISP_CSIPHY2_NUM_DATA_LANES; i++) { + buscfg->bus.csi2.lanecfg.data[i].pos = + vfwn.bus.mipi_csi2.data_lanes[i]; + buscfg->bus.csi2.lanecfg.data[i].pol = + vfwn.bus.mipi_csi2.lane_polarities[i + 1]; + dev_dbg(dev, "data lane %u polarity %u, pos %u\n", i, + buscfg->bus.csi2.lanecfg.data[i].pol, + buscfg->bus.csi2.lanecfg.data[i].pos); + } + /* + * FIXME: now we assume the CRC is always there. + * Implement a way to obtain this information from the + * sensor. Frame descriptors, perhaps? + */ + + buscfg->bus.csi2.crc = 1; } - - /* - * FIXME: now we assume the CRC is always there. - * Implement a way to obtain this information from the - * sensor. Frame descriptors, perhaps? - */ - buscfg->bus.csi2.crc = 1; break; default: diff --git a/drivers/media/platform/omap3isp/omap3isp.h b/drivers/media/platform/omap3isp/omap3isp.h index 443e8f7..f6d1d0d 100644 --- a/drivers/media/platform/omap3isp/omap3isp.h +++ b/drivers/media/platform/omap3isp/omap3isp.h @@ -108,6 +108,7 @@ struct isp_ccp2_cfg { unsigned int ccp2_mode:1; unsigned int phy_layer:1; unsigned int vpclk_div:2; + unsigned int vp_clk_pol:1; struct isp_csiphy_lanes_cfg lanecfg; };