From patchwork Fri Feb 13 05:25:19 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Liu Ying X-Patchwork-Id: 5823021 Return-Path: X-Original-To: patchwork-linux-arm@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 A7AAD9F37F for ; Fri, 13 Feb 2015 05:23:16 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id D5162201C0 for ; Fri, 13 Feb 2015 05:23:15 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0F5F020254 for ; Fri, 13 Feb 2015 05:23:15 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1YM8gn-0003oP-FQ; Fri, 13 Feb 2015 05:21:17 +0000 Received: from mail-bn1bn0102.outbound.protection.outlook.com ([157.56.110.102] helo=na01-bn1-obe.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1YM8gf-0003eu-20 for linux-arm-kernel@lists.infradead.org; Fri, 13 Feb 2015 05:21:10 +0000 Received: from BN3PR0301CA0045.namprd03.prod.outlook.com (25.160.152.141) by CY1PR0301MB0636.namprd03.prod.outlook.com (25.160.158.142) with Microsoft SMTP Server (TLS) id 15.1.87.13; Fri, 13 Feb 2015 05:20:45 +0000 Received: from BY2FFO11OLC003.protection.gbl (2a01:111:f400:7c0c::191) by BN3PR0301CA0045.outlook.office365.com (2a01:111:e400:401e::13) with Microsoft SMTP Server (TLS) id 15.1.87.13 via Frontend Transport; Fri, 13 Feb 2015 05:20:44 +0000 Received: from az84smr01.freescale.net (192.88.158.2) by BY2FFO11OLC003.mail.protection.outlook.com (10.1.15.183) with Microsoft SMTP Server (TLS) id 15.1.87.10 via Frontend Transport; Fri, 13 Feb 2015 05:20:44 +0000 Received: from victor.ap.freescale.net (victor.ap.freescale.net [10.192.241.62]) by az84smr01.freescale.net (8.14.3/8.14.0) with ESMTP id t1D5Kaht018383; Thu, 12 Feb 2015 22:20:38 -0700 From: Liu Ying To: Subject: [PATCH RFC v9.5 09/20] drm/dsi: Add a helper to get bits per pixel of MIPI DSI pixel format Date: Fri, 13 Feb 2015 13:25:19 +0800 Message-ID: <1423805119-32008-1-git-send-email-Ying.Liu@freescale.com> X-Mailer: git-send-email 2.1.0 X-EOPAttributedMessage: 0 Received-SPF: Fail (protection.outlook.com: domain of freescale.com does not designate 192.88.158.2 as permitted sender) receiver=protection.outlook.com; client-ip=192.88.158.2; helo=az84smr01.freescale.net; Authentication-Results: spf=fail (sender IP is 192.88.158.2) smtp.mailfrom=Ying.Liu@freescale.com; vger.kernel.org; dkim=none (message not signed) header.d=none; X-Forefront-Antispam-Report: CIP:192.88.158.2; CTRY:US; IPV:NLI; EFV:NLI; SFV:NSPM; SFS:(10019020)(6009001)(339900001)(87936001)(105606002)(106466001)(50226001)(110136001)(46102003)(2351001)(229853001)(104016003)(92566002)(85426001)(50986999)(6806004)(19580405001)(19580395003)(62966003)(77156002)(575784001)(86362001)(47776003)(48376002)(50466002)(77096005)(36756003)(217873001); DIR:OUT; SFP:1102; SCL:1; SRVR:CY1PR0301MB0636; H:az84smr01.freescale.net; FPR:; SPF:Fail; MLV:sfv; LANG:en; MIME-Version: 1.0 X-Microsoft-Antispam: UriScan:; X-Microsoft-Antispam: BCL:0;PCL:0;RULEID:;SRVR:CY1PR0301MB0636; X-Exchange-Antispam-Report-Test: UriScan:; X-Exchange-Antispam-Report-CFA-Test: BCL:0; PCL:0; RULEID:(601004); SRVR:CY1PR0301MB0636; X-Forefront-PRVS: 0486A0CB86 X-Exchange-Antispam-Report-CFA-Test: BCL:0; PCL:0; RULEID:; SRVR:CY1PR0301MB0636; X-OriginatorOrg: freescale.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 13 Feb 2015 05:20:44.5873 (UTC) X-MS-Exchange-CrossTenant-Id: 710a03f5-10f6-4d38-9ff4-a80b81da590d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=710a03f5-10f6-4d38-9ff4-a80b81da590d; Ip=[192.88.158.2] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY1PR0301MB0636 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150212_212109_351299_D2C0DCF3 X-CRM114-Status: UNSURE ( 7.92 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -0.0 (/) Cc: stefan.wahren@i2se.com, devicetree@vger.kernel.org, linux@arm.linux.org.uk, kernel@pengutronix.de, airlied@linux.ie, daniel.vetter@ffwll.ch, sboyd@codeaurora.org, linux-kernel@vger.kernel.org, a.hajda@samsung.com, thierry.reding@gmail.com, p.zabel@pengutronix.de, mturquette@linaro.org, shawn.guo@linaro.org, linux-arm-kernel@lists.infradead.org, andyshrk@gmail.com X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_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 Signed-off-by: Liu Ying --- v9->v9.5: * Add kernel-doc for the new helper function to address Daniel Vetter's comment. v8->v9: * Rebase onto the imx-drm/next branch of Philipp Zabel's open git repository. v7->v8: * None. v6->v7: * None. v5->v6: * Address the over 80 characters in one line warning reported by the checkpatch.pl script. v4->v5: * None. v3->v4: * None. v2->v3: * None. v1->v2: * Thierry Reding suggested that the mipi_dsi_pixel_format_to_bpp() function could be placed at the common DRM MIPI DSI driver. This patch is newly added. include/drm/drm_mipi_dsi.h | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h index f1d8d0d..cabc910 100644 --- a/include/drm/drm_mipi_dsi.h +++ b/include/drm/drm_mipi_dsi.h @@ -163,6 +163,28 @@ static inline struct mipi_dsi_device *to_mipi_dsi_device(struct device *dev) return container_of(dev, struct mipi_dsi_device, dev); } +/** + * mipi_dsi_pixel_format_to_bpp() - get bits per pixel for a mipi dsi + * pixel format + * @fmt: mipi dsi pixel format + * + * Return: The bits per pixel value for the mipi dsi pixel format on success or + * a negative error code on failure. + */ +static inline int mipi_dsi_pixel_format_to_bpp(enum mipi_dsi_pixel_format fmt) +{ + switch (fmt) { + case MIPI_DSI_FMT_RGB888: + case MIPI_DSI_FMT_RGB666: + return 24; + case MIPI_DSI_FMT_RGB666_PACKED: + return 18; + case MIPI_DSI_FMT_RGB565: + return 16; + } + return -EINVAL; +} + struct mipi_dsi_device *of_find_mipi_dsi_device_by_node(struct device_node *np); int mipi_dsi_attach(struct mipi_dsi_device *dsi); int mipi_dsi_detach(struct mipi_dsi_device *dsi);