From patchwork Fri Jan 14 03:48:28 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marek Vasut X-Patchwork-Id: 12713370 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 C5A41C433FE for ; Fri, 14 Jan 2022 03:49:27 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 73A1910EB77; Fri, 14 Jan 2022 03:49:06 +0000 (UTC) Received: from phobos.denx.de (phobos.denx.de [IPv6:2a01:238:438b:c500:173d:9f52:ddab:ee01]) by gabe.freedesktop.org (Postfix) with ESMTPS id 626CB10EB6D for ; Fri, 14 Jan 2022 03:48:59 +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 B53B8832CD; Fri, 14 Jan 2022 04:48:57 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=denx.de; s=phobos-20191101; t=1642132138; bh=zT8H1L4LZCpyZR/FbPtx7wXhlXCjgkcZ5KnFVHy7yv8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Sa9xhxfSNEqjrvKWP83xd3Da8MMgOJJLe4mfe67YFE0xGtew9ujlL3EYo+Gvo4px7 3L0trc1aqq2Kygy7JkQm0RYdcDAC036/gZKD7zIU4vadlMffOr/QoWuNYxhKTLKp2F NPMLSyXOPrWex0MzHmQtmnLY+hK/Ovm4pf4vx0hu/LdMO5p+3oryROHqzY//qQ0TKL YdeMjW+NHUDaMbg8tIu0lzRhsfMAcdtFw0ZRq3QXqDovm4zm71PEFmxbAWGcSVBK11 g6CENgEcePURp4u37rTqNwxZWsocm74yNcv8N6+MuXr+XrgG9QgbtlZnSShSrdAIH1 D9D7IDJyd68PA== From: Marek Vasut To: dri-devel@lists.freedesktop.org Subject: [PATCH 04/14] drm: bridge: icn6211: Implement atomic_get_input_bus_fmts Date: Fri, 14 Jan 2022 04:48:28 +0100 Message-Id: <20220114034838.546267-4-marex@denx.de> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220114034838.546267-1-marex@denx.de> References: <20220114034838.546267-1-marex@denx.de> MIME-Version: 1.0 X-Virus-Scanned: clamav-milter 0.103.2 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 , Thomas Zimmermann , Sam Ravnborg , Jagan Teki , Robert Foss Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Implement .atomic_get_input_bus_fmts callback, which sets up the input (DSI-end) format, and that format can then be used in pipeline format negotiation between the DSI-end of this bridge and the other component closer to the scanout engine. Signed-off-by: Marek Vasut Cc: Jagan Teki Cc: Robert Foss Cc: Sam Ravnborg Cc: Thomas Zimmermann To: dri-devel@lists.freedesktop.org --- drivers/gpu/drm/bridge/chipone-icn6211.c | 27 ++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/drivers/gpu/drm/bridge/chipone-icn6211.c b/drivers/gpu/drm/bridge/chipone-icn6211.c index dc909e7ceb958..14d28e7356aaa 100644 --- a/drivers/gpu/drm/bridge/chipone-icn6211.c +++ b/drivers/gpu/drm/bridge/chipone-icn6211.c @@ -281,6 +281,32 @@ static int chipone_attach(struct drm_bridge *bridge, enum drm_bridge_attach_flag return drm_bridge_attach(bridge->encoder, icn->panel_bridge, bridge, flags); } +#define MAX_INPUT_SEL_FORMATS 1 + +static u32 * +chipone_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 chipone_bridge_funcs = { .attach = chipone_attach, .atomic_post_disable = chipone_atomic_post_disable, @@ -289,6 +315,7 @@ static const struct drm_bridge_funcs chipone_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 = chipone_atomic_get_input_bus_fmts, }; static int chipone_parse_dt(struct chipone *icn)