From patchwork Mon Sep 29 14:02:41 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Boris BREZILLON X-Patchwork-Id: 4996591 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 [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 4969A9F348 for ; Mon, 29 Sep 2014 14:06:02 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 6F02A20172 for ; Mon, 29 Sep 2014 14:06:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 89357200F0 for ; Mon, 29 Sep 2014 14:06:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753827AbaI2OE7 (ORCPT ); Mon, 29 Sep 2014 10:04:59 -0400 Received: from top.free-electrons.com ([176.31.233.9]:47345 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754426AbaI2ODv (ORCPT ); Mon, 29 Sep 2014 10:03:51 -0400 Received: by mail.free-electrons.com (Postfix, from userid 106) id 851757B6; Mon, 29 Sep 2014 16:03:52 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Spam-Level: X-Spam-Status: No, score=-7.7 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from localhost.localdomain (col31-4-88-188-83-94.fbx.proxad.net [88.188.83.94]) by mail.free-electrons.com (Postfix) with ESMTPSA id 6D544F62; Mon, 29 Sep 2014 16:02:49 +0200 (CEST) From: Boris Brezillon To: Thierry Reding , dri-devel@lists.freedesktop.org, David Airlie , Mauro Carvalho Chehab , linux-media@vger.kernel.org Cc: Guennadi Liakhovetski , linux-kernel@vger.kernel.org, Boris BREZILLON Subject: [PATCH v2 3/5] drm: add bus_formats and nbus_formats fields to drm_display_info Date: Mon, 29 Sep 2014 16:02:41 +0200 Message-Id: <1411999363-28770-4-git-send-email-boris.brezillon@free-electrons.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1411999363-28770-1-git-send-email-boris.brezillon@free-electrons.com> References: <1411999363-28770-1-git-send-email-boris.brezillon@free-electrons.com> 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 From: Boris BREZILLON Add bus_formats and nbus_formats fields and drm_display_info_set_bus_formats helper function to specify the bus formats supported by a given display. This information can be used by display controller drivers to configure the output interface appropriately (i.e. RGB565, RGB666 or RGB888 on raw RGB or LVDS busses). Signed-off-by: Boris BREZILLON --- drivers/gpu/drm/drm_crtc.c | 31 +++++++++++++++++++++++++++++++ include/drm/drm_crtc.h | 8 ++++++++ 2 files changed, 39 insertions(+) diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 90e7730..c31420f 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -852,6 +852,37 @@ static void drm_mode_remove(struct drm_connector *connector, drm_mode_destroy(connector->dev, mode); } +/* + * drm_display_info_set_bus_formats - set the supported bus formats + * @info: display info to store bus formats in + * @fmts: array containing the supported bus formats + * @nfmts: the number of entries in the fmts array + * + * Store the suppported bus formats in display info structure. + */ +int drm_display_info_set_bus_formats(struct drm_display_info *info, + const enum video_bus_format *fmts, + unsigned int num_fmts) +{ + enum video_bus_format *formats = NULL; + + if (!fmts && num_fmts) + return -EINVAL; + + if (fmts && num_fmts) { + formats = kmemdup(fmts, sizeof(*fmts) * num_fmts, GFP_KERNEL); + if (!formats) + return -ENOMEM; + } + + kfree(info->bus_formats); + info->bus_formats = formats; + info->num_bus_formats = num_fmts; + + return 0; +} +EXPORT_SYMBOL(drm_display_info_set_bus_formats); + /** * drm_connector_init - Init a preallocated connector * @dev: DRM device diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index f1105d0..488f779 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -31,6 +31,7 @@ #include #include #include +#include #include #include #include @@ -130,6 +131,9 @@ struct drm_display_info { enum subpixel_order subpixel_order; u32 color_formats; + const enum video_bus_format *bus_formats; + int num_bus_formats; + /* Mask of supported hdmi deep color modes */ u8 edid_hdmi_dc_modes; @@ -975,6 +979,10 @@ extern int drm_mode_connector_set_path_property(struct drm_connector *connector, extern int drm_mode_connector_update_edid_property(struct drm_connector *connector, struct edid *edid); +extern int drm_display_info_set_bus_formats(struct drm_display_info *info, + const enum video_bus_format *fmts, + unsigned int nfmts); + static inline bool drm_property_type_is(struct drm_property *property, uint32_t type) {