From patchwork Fri Jan 15 20:01:31 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Paul Kocialkowski X-Patchwork-Id: 12023965 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-17.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4E2E1C433E9 for ; Fri, 15 Jan 2021 20:04:19 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0B19123AA9 for ; Fri, 15 Jan 2021 20:04:18 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0B19123AA9 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bootlin.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=o+7DcSqKRdjsKeLe43jv6Nak2DDBeOKcgnZX4Ipds7s=; b=MngkSvpXiXIT9ZD4QyY5kz4hh t1AsufO6OJRSqhvkZdxpB7qBH5pF+Kp7zADQavkH7Ncneizvh/vk0nUF7QlH2Xh+wSkueAY82Gzdd 0iSj86GyKQzSC+V7rGleo/ViffQBpzf15bfGryKCbSsrG2C92P75ujBwreBYL8+4j0wFYnZDI+zg9 Bpa3mScz4gZWNlwGSVDObzVNr7E4fRSmVFH2zgWQo2VceJDMMT93dh92TakxTD8o12PFnSwpCqcRt /5afduT5aLPEVWvOvF14o6vgkcx0PshmV4nFHservdafjdHk4MbDGfBKC6UbxRVytdnHLBCx/Cd8F C7/Sh3D6Q==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1l0VIo-0002gJ-Ah; Fri, 15 Jan 2021 20:02:34 +0000 Received: from relay5-d.mail.gandi.net ([217.70.183.197]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1l0VIO-0002Vm-5Q for linux-arm-kernel@lists.infradead.org; Fri, 15 Jan 2021 20:02:15 +0000 X-Originating-IP: 93.29.109.196 Received: from localhost.localdomain (196.109.29.93.rev.sfr.net [93.29.109.196]) (Authenticated sender: paul.kocialkowski@bootlin.com) by relay5-d.mail.gandi.net (Postfix) with ESMTPSA id B95B51C000A; Fri, 15 Jan 2021 20:02:04 +0000 (UTC) From: Paul Kocialkowski To: linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, devel@driverdev.osuosl.org, linux-sunxi@googlegroups.com Subject: [PATCH v5 06/16] media: sun6i-csi: Only configure the interface data width for parallel Date: Fri, 15 Jan 2021 21:01:31 +0100 Message-Id: <20210115200141.1397785-7-paul.kocialkowski@bootlin.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210115200141.1397785-1-paul.kocialkowski@bootlin.com> References: <20210115200141.1397785-1-paul.kocialkowski@bootlin.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210115_150208_517972_2ED4C557 X-CRM114-Status: GOOD ( 15.40 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?utf-8?b?S8OpdmluIEwnaMO0cGl0YWw=?= , Jernej Skrabec , Dafna Hirschfeld , Philipp Zabel , Jonathan Corbet , Thomas Petazzoni , Greg Kroah-Hartman , Helen Koike , Vinod Koul , Maxime Ripard , Kishon Vijay Abraham I , Paul Kocialkowski , Chen-Yu Tsai , Rob Herring , Hans Verkuil , Ezequiel Garcia , Yong Deng , Sakari Ailus , Mauro Carvalho Chehab , kevin.lhopital@hotmail.com Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Bits related to the interface data width are only applicable to the parallel interface and are irrelevant when the CSI controller is taking input from the MIPI CSI-2 controller. In prevision of adding support for this case, set these bits conditionally so there is no ambiguity. The conditional block is moved around before the interlaced conditional block for nicer code symmetry (conditional blocks first) while at it. Co-developed-by: Kévin L'hôpital Signed-off-by: Kévin L'hôpital Signed-off-by: Paul Kocialkowski Acked-by: Maxime Ripard --- .../platform/sunxi/sun6i-csi/sun6i_csi.c | 42 +++++++++++-------- 1 file changed, 25 insertions(+), 17 deletions(-) diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c index 1a11a6174a17..d06028f42534 100644 --- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c +++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c @@ -378,8 +378,13 @@ static void sun6i_csi_setup_bus(struct sun6i_csi_dev *sdev) unsigned char bus_width; u32 flags; u32 cfg; + bool input_parallel = false; bool input_interlaced = false; + if (endpoint->bus_type == V4L2_MBUS_PARALLEL || + endpoint->bus_type == V4L2_MBUS_BT656) + input_parallel = true; + if (csi->config.field == V4L2_FIELD_INTERLACED || csi->config.field == V4L2_FIELD_INTERLACED_TB || csi->config.field == V4L2_FIELD_INTERLACED_BT) @@ -395,6 +400,26 @@ static void sun6i_csi_setup_bus(struct sun6i_csi_dev *sdev) CSI_IF_CFG_HREF_POL_MASK | CSI_IF_CFG_FIELD_MASK | CSI_IF_CFG_SRC_TYPE_MASK); + if (input_parallel) { + switch (bus_width) { + case 8: + cfg |= CSI_IF_CFG_IF_DATA_WIDTH_8BIT; + break; + case 10: + cfg |= CSI_IF_CFG_IF_DATA_WIDTH_10BIT; + break; + case 12: + cfg |= CSI_IF_CFG_IF_DATA_WIDTH_12BIT; + break; + case 16: /* No need to configure DATA_WIDTH for 16bit */ + break; + default: + dev_warn(sdev->dev, "Unsupported bus width: %u\n", + bus_width); + break; + } + } + if (input_interlaced) cfg |= CSI_IF_CFG_SRC_TYPE_INTERLACED; else @@ -440,23 +465,6 @@ static void sun6i_csi_setup_bus(struct sun6i_csi_dev *sdev) break; } - switch (bus_width) { - case 8: - cfg |= CSI_IF_CFG_IF_DATA_WIDTH_8BIT; - break; - case 10: - cfg |= CSI_IF_CFG_IF_DATA_WIDTH_10BIT; - break; - case 12: - cfg |= CSI_IF_CFG_IF_DATA_WIDTH_12BIT; - break; - case 16: /* No need to configure DATA_WIDTH for 16bit */ - break; - default: - dev_warn(sdev->dev, "Unsupported bus width: %u\n", bus_width); - break; - } - regmap_write(sdev->regmap, CSI_IF_CFG_REG, cfg); }