From patchwork Fri Apr 8 16:21:05 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jagan Teki X-Patchwork-Id: 12806956 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 69DE8C4332F for ; Fri, 8 Apr 2022 16:23:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230458AbiDHQZV (ORCPT ); Fri, 8 Apr 2022 12:25:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44888 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230251AbiDHQZS (ORCPT ); Fri, 8 Apr 2022 12:25:18 -0400 Received: from mail-pg1-x530.google.com (mail-pg1-x530.google.com [IPv6:2607:f8b0:4864:20::530]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4AB8231C0AA for ; Fri, 8 Apr 2022 09:23:14 -0700 (PDT) Received: by mail-pg1-x530.google.com with SMTP id r66so8203521pgr.3 for ; Fri, 08 Apr 2022 09:23:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=JGCB1sW6LyijUbLjQ0T8cjIYHkAIPaRA2Df2SDrEzx4=; b=AUwD0c/HONK4kHDWXFTViVCCou9fnZO3egeZ7s04cFUrIltfJNz+ce01OgdXRoKPky Qkn7DhXb4N84zNHd/krryzjn7wt8LZHuJrE8sag6vqNiMuhrbA8rmCGniWNhzX93z3W2 I7GiWwvIi93BO5QHIKJZ6nPobVHPgqzk3Dgus= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=JGCB1sW6LyijUbLjQ0T8cjIYHkAIPaRA2Df2SDrEzx4=; b=vvFej+IcndlSmKmjWldq1XpKGyBR6DuyET5VVYIwB07nMLRvCLc0PFmfcBQoAAkwc5 cfptw5LSIc9XdH3OpHRtG/KtNpAbd93iA/acBcM8atpWBTWA4pKhNrr1put+SHjdIYif jIyNRFd5GTyAxzG7DB9lfh9wo8U1oWkgLZWd6q8jItVMHk/zBRkssKgErvM7a82iR0Em Xm3eOHZNlYm3SnqK0mI58zOyu9yJ8bYsVRokdTVvIeSZcTJVLEx0ByUTI2IIWv0jnTq7 euTK5/SmPGhabTrRbdI1nil181RZzly7QE8WrI1+TK03OsgbuwkSn8FqIw3GdL4QULc+ Tz6Q== X-Gm-Message-State: AOAM532J8mfM9jmDB3Lg6ZKzSEYMlZ0eAbbGfzybu35uZ936+ucrFIiE oRaP09EkitqL86ZJuysWNMmL/w== X-Google-Smtp-Source: ABdhPJzVK2WLZLH7V+ZzPjQ0OUWUy++6NHPog+TXp4Ddp3DIpi/rUciXcNDblhENViSmJwi5aCHlIA== X-Received: by 2002:a63:9d07:0:b0:398:9594:a48f with SMTP id i7-20020a639d07000000b003989594a48fmr16365061pgd.51.1649434993731; Fri, 08 Apr 2022 09:23:13 -0700 (PDT) Received: from j-ThinkPad-E14-Gen-2.domain.name ([45.249.78.214]) by smtp.gmail.com with ESMTPSA id n18-20020a056a0007d200b004fdac35672fsm24929863pfu.68.2022.04.08.09.23.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 08 Apr 2022 09:23:13 -0700 (PDT) From: Jagan Teki To: Andrzej Hajda , Inki Dae , Marek Szyprowski , Joonyoung Shim , Seung-Woo Kim , Kyungmin Park , Frieder Schrempf , Fancy Fang , Tim Harvey , Michael Nazzareno Trimarchi , Adam Ford , Neil Armstrong , Robert Foss , Laurent Pinchart , Rob Herring Cc: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, NXP Linux Team , linux-amarula , Jagan Teki Subject: [PATCH 08/11] drm: bridge: samsung-dsim: Add atomic_get_input_bus_fmts Date: Fri, 8 Apr 2022 21:51:05 +0530 Message-Id: <20220408162108.184583-9-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220408162108.184583-1-jagan@amarulasolutions.com> References: <20220408162108.184583-1-jagan@amarulasolutions.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org Finding the right input bus format throughout the pipeline is hard so add atomic_get_input_bus_fmts callback and initialize with the default RGB888_1X24 bus format on DSI-end. This format can be used in pipeline for negotiating bus format between the DSI-end of this bridge and the other component closer to pipeline components. v1: * new patch Signed-off-by: Jagan Teki --- drivers/gpu/drm/bridge/samsung-dsim.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/drivers/gpu/drm/bridge/samsung-dsim.c b/drivers/gpu/drm/bridge/samsung-dsim.c index 38db1f93ed51..02802526f82f 100644 --- a/drivers/gpu/drm/bridge/samsung-dsim.c +++ b/drivers/gpu/drm/bridge/samsung-dsim.c @@ -1338,6 +1338,32 @@ static void samsung_dsim_atomic_post_disable(struct drm_bridge *bridge, pm_runtime_put_sync(dsi->dev); } +#define MAX_INPUT_SEL_FORMATS 1 + +static u32 * +samsung_dsim_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 int samsung_dsim_atomic_check(struct drm_bridge *bridge, struct drm_bridge_state *bridge_state, struct drm_crtc_state *crtc_state, @@ -1372,6 +1398,7 @@ static const struct drm_bridge_funcs samsung_dsim_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 = samsung_dsim_atomic_get_input_bus_fmts, .atomic_check = samsung_dsim_atomic_check, .atomic_pre_enable = samsung_dsim_atomic_pre_enable, .atomic_enable = samsung_dsim_atomic_enable,