From patchwork Sun Feb 13 01:44:43 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marek Vasut X-Patchwork-Id: 12744471 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 4D5ABC433F5 for ; Sun, 13 Feb 2022 01:45:08 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id EAEC610E23A; Sun, 13 Feb 2022 01:45:06 +0000 (UTC) Received: from phobos.denx.de (phobos.denx.de [85.214.62.61]) by gabe.freedesktop.org (Postfix) with ESMTPS id 607A210E128 for ; Sun, 13 Feb 2022 01:45:05 +0000 (UTC) Received: from tr.lan (ip-89-176-112-137.net.upcbroadband.cz [89.176.112.137]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: marex@denx.de) by phobos.denx.de (Postfix) with ESMTPSA id 4BBF283381; Sun, 13 Feb 2022 02:45:03 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=denx.de; s=phobos-20191101; t=1644716703; bh=gT9xHi3jJzf4NmiU6dy/ZISvD6lZJXqFpznsv9LrPRY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=N6urHYsmhLgkvy6iyTrvx1mF3E2TQ2aYAptsWMvRjFnNffSxLlLw1Nynad36qpKcM Y5OJt/zPlt8zLgMcdD717OCOurO49fdwtaJiRJSr3QW+Uw/GjPbbBbo3YzPlo9dpVB +HByeefMy5MbDlB5INrq4RgA1/dLCX8qFY9pB6DWIzBH2YfZOHRBGb+nrpQMr0BdC3 +M4MQqVPxLPyWav/8B1g+9k040kgBJg9u4ZuLE9QlttAbxM1RrsQnLFjizVUFIGp0P tAyVIAk5yR5/3ujkesBzzK3nQbQJRsr9QBK+hqX8Fkx6YJQ2u6hgQq1PgeaGS5WRNw 7dPXnRjX7FxyA== From: Marek Vasut To: dri-devel@lists.freedesktop.org Subject: [PATCH 2/2] drm/bridge: lt9611: Add atomic_get_input_bus_fmts Date: Sun, 13 Feb 2022 02:44:43 +0100 Message-Id: <20220213014443.448080-2-marex@denx.de> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220213014443.448080-1-marex@denx.de> References: <20220213014443.448080-1-marex@denx.de> MIME-Version: 1.0 X-Virus-Scanned: clamav-milter 0.103.5 at phobos.denx.de X-Virus-Status: Clean X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Marek Vasut , Maxime Ripard , Thomas Zimmermann , Dave Airlie , Sam Ravnborg Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Implement .atomic_get_input_bus_fmts callback, which sets up the input (scanout-engine-end) formats, so that those formats can then be used in pipeline format negotiation between this bridge and the scanout engine. Signed-off-by: Marek Vasut Cc: Dave Airlie Cc: John Stultz Cc: Maxime Ripard Cc: Sam Ravnborg Cc: Thomas Zimmermann --- drivers/gpu/drm/bridge/lontium-lt9611.c | 27 +++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/drivers/gpu/drm/bridge/lontium-lt9611.c b/drivers/gpu/drm/bridge/lontium-lt9611.c index b3b4df2f744f8..52f146b769543 100644 --- a/drivers/gpu/drm/bridge/lontium-lt9611.c +++ b/drivers/gpu/drm/bridge/lontium-lt9611.c @@ -922,6 +922,32 @@ static void lt9611_bridge_hpd_enable(struct drm_bridge *bridge) lt9611_enable_hpd_interrupts(lt9611); } +#define MAX_INPUT_SEL_FORMATS 1 + +static u32 * +lt9611_atomic_get_input_bus_fmts(struct drm_bridge *bridge, + struct drm_bridge_state *bridge_state, + struct drm_crtc_state *crtc_state, + struct drm_connector_state *conn_state, + u32 output_fmt, + unsigned int *num_input_fmts) +{ + u32 *input_fmts; + + *num_input_fmts = 0; + + input_fmts = kcalloc(MAX_INPUT_SEL_FORMATS, sizeof(*input_fmts), + GFP_KERNEL); + if (!input_fmts) + return NULL; + + /* This is the DSI-end bus format */ + input_fmts[0] = MEDIA_BUS_FMT_RGB888_1X24; + *num_input_fmts = 1; + + return input_fmts; +} + static const struct drm_bridge_funcs lt9611_bridge_funcs = { .attach = lt9611_bridge_attach, .mode_valid = lt9611_bridge_mode_valid, @@ -936,6 +962,7 @@ static const struct drm_bridge_funcs lt9611_bridge_funcs = { .atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state, .atomic_destroy_state = drm_atomic_helper_bridge_destroy_state, .atomic_reset = drm_atomic_helper_bridge_reset, + .atomic_get_input_bus_fmts = lt9611_atomic_get_input_bus_fmts, }; static int lt9611_parse_dt(struct device *dev,