From patchwork Tue Aug 4 06:47:07 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Josh Wu X-Patchwork-Id: 6934351 Return-Path: X-Original-To: patchwork-linux-media@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 88C5E9F38B for ; Tue, 4 Aug 2015 06:43:01 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id AF08020450 for ; Tue, 4 Aug 2015 06:43:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C0E102041D for ; Tue, 4 Aug 2015 06:42:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754546AbbHDGm6 (ORCPT ); Tue, 4 Aug 2015 02:42:58 -0400 Received: from eusmtp01.atmel.com ([212.144.249.242]:9128 "EHLO eusmtp01.atmel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754537AbbHDGm5 (ORCPT ); Tue, 4 Aug 2015 02:42:57 -0400 Received: from apsmtp01.atmel.com (10.168.254.30) by eusmtp01.atmel.com (10.161.101.30) with Microsoft SMTP Server id 14.3.235.1; Tue, 4 Aug 2015 08:42:53 +0200 Received: from melon.corp.atmel.com (10.168.254.13) by apsmtp01.corp.atmel.com (10.168.254.30) with Microsoft SMTP Server id 14.3.235.1; Tue, 4 Aug 2015 14:41:35 +0800 From: Josh Wu To: Linux Media Mailing List , "Guennadi Liakhovetski" , CC: Laurent Pinchart , Josh Wu Subject: [PATCH v2] media: atmel-isi: parse the DT parameters for vsync/hsync/pixclock polarity Date: Tue, 4 Aug 2015 14:47:07 +0800 Message-ID: <1438670828-19845-1-git-send-email-josh.wu@atmel.com> X-Mailer: git-send-email 1.9.1 MIME-Version: 1.0 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Spam-Status: No, score=-7.0 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This patch will get the DT parameters of vsync/hsync/pixclock polarity, and pass to driver. Also add a debug information for test purpose. Signed-off-by: Josh Wu --- Changes in v2: - rewrite the debug message and add pix clock polarity setup thanks to Laurent. - update the commit log. drivers/media/platform/soc_camera/atmel-isi.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/media/platform/soc_camera/atmel-isi.c b/drivers/media/platform/soc_camera/atmel-isi.c index fead841..d6f8def 100644 --- a/drivers/media/platform/soc_camera/atmel-isi.c +++ b/drivers/media/platform/soc_camera/atmel-isi.c @@ -1061,6 +1061,11 @@ static int isi_camera_set_bus_param(struct soc_camera_device *icd) if (common_flags & V4L2_MBUS_PCLK_SAMPLE_FALLING) cfg1 |= ISI_CFG1_PIXCLK_POL_ACTIVE_FALLING; + dev_dbg(icd->parent, "vsync active %s, hsync active %s, sampling on pix clock %s\n", + common_flags & V4L2_MBUS_VSYNC_ACTIVE_LOW ? "low" : "high", + common_flags & V4L2_MBUS_HSYNC_ACTIVE_LOW ? "low" : "high", + common_flags & V4L2_MBUS_PCLK_SAMPLE_FALLING ? "falling" : "rising"); + if (isi->pdata.has_emb_sync) cfg1 |= ISI_CFG1_EMB_SYNC; if (isi->pdata.full_mode) @@ -1148,6 +1153,13 @@ static int atmel_isi_parse_dt(struct atmel_isi *isi, return -EINVAL; } + if (ep.bus.parallel.flags & V4L2_MBUS_HSYNC_ACTIVE_LOW) + isi->pdata.hsync_act_low = true; + if (ep.bus.parallel.flags & V4L2_MBUS_VSYNC_ACTIVE_LOW) + isi->pdata.vsync_act_low = true; + if (ep.bus.parallel.flags & V4L2_MBUS_PCLK_SAMPLE_FALLING) + isi->pdata.pclk_act_falling = true; + return 0; }