From patchwork Mon Dec 1 21:23:49 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Boris BREZILLON X-Patchwork-Id: 5415481 Return-Path: X-Original-To: patchwork-dri-devel@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 075469F30B for ; Mon, 1 Dec 2014 21:24:03 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id B2DBF20260 for ; Mon, 1 Dec 2014 21:24:00 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id CDFB020218 for ; Mon, 1 Dec 2014 21:23:58 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 0A4786E384; Mon, 1 Dec 2014 13:23:58 -0800 (PST) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mail.free-electrons.com (down.free-electrons.com [37.187.137.238]) by gabe.freedesktop.org (Postfix) with ESMTP id 3BC986E384 for ; Mon, 1 Dec 2014 13:23:56 -0800 (PST) Received: by mail.free-electrons.com (Postfix, from userid 106) id 9E189750; Mon, 1 Dec 2014 22:24:03 +0100 (CET) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Spam-Level: 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 Received: from localhost.localdomain (col31-4-88-188-80-5.fbx.proxad.net [88.188.80.5]) by mail.free-electrons.com (Postfix) with ESMTPSA id E14541EC; Mon, 1 Dec 2014 22:24:02 +0100 (CET) From: Boris Brezillon To: David Airlie , dri-devel@lists.freedesktop.org, Thierry Reding Subject: [PATCH v5 1/3] drm: add bus_formats and num_bus_formats fields to drm_display_info Date: Mon, 1 Dec 2014 22:23:49 +0100 Message-Id: <1417469031-22202-2-git-send-email-boris.brezillon@free-electrons.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1417469031-22202-1-git-send-email-boris.brezillon@free-electrons.com> References: <1417469031-22202-1-git-send-email-boris.brezillon@free-electrons.com> Cc: Nicolas Ferre , linux-kernel@vger.kernel.org, Alexandre Belloni , Laurent Pinchart , Jean-Christophe Plagniol-Villard , Andrew Victor X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP Add bus_formats and num_bus_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 Acked-by: Laurent Pinchart Acked-by: Philipp Zabel --- drivers/gpu/drm/drm_crtc.c | 35 +++++++++++++++++++++++++++++++++++ include/drm/drm_crtc.h | 8 ++++++++ 2 files changed, 43 insertions(+) diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index e79c8d3..1295863 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -764,6 +764,40 @@ static void drm_mode_remove(struct drm_connector *connector, } /** + * 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 supported bus formats in display info structure. + * See MEDIA_BUS_FMT_* definitions in include/uapi/linux/media-bus-format.h for + * a full list of available formats. + */ +int drm_display_info_set_bus_formats(struct drm_display_info *info, + const u32 *formats, + unsigned int num_formats) +{ + u32 *fmts = NULL; + + if (!formats && num_formats) + return -EINVAL; + + if (formats && num_formats) { + fmts = kmemdup(formats, sizeof(*formats) * num_formats, + GFP_KERNEL); + if (!formats) + return -ENOMEM; + } + + kfree(info->bus_formats); + info->bus_formats = fmts; + info->num_bus_formats = num_formats; + + return 0; +} +EXPORT_SYMBOL(drm_display_info_set_bus_formats); + +/** * drm_connector_get_cmdline_mode - reads the user's cmdline mode * @connector: connector to quwery * @mode: returned mode @@ -914,6 +948,7 @@ void drm_connector_cleanup(struct drm_connector *connector) ida_remove(&drm_connector_enum_list[connector->connector_type].ida, connector->connector_type_id); + kfree(connector->display_info.bus_formats); drm_mode_object_put(dev, &connector->base); kfree(connector->name); connector->name = NULL; diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index c40070a..5d351f5 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 u32 *bus_formats; + unsigned int num_bus_formats; + /* Mask of supported hdmi deep color modes */ u8 edid_hdmi_dc_modes; @@ -982,6 +986,10 @@ 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 u32 *formats, + unsigned int num_formats); + static inline bool drm_property_type_is(struct drm_property *property, uint32_t type) {