From patchwork Wed May 4 11:40:18 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jagan Teki X-Patchwork-Id: 570121 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 AF0EDC433EF for ; Wed, 4 May 2022 11:41:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1348927AbiEDLp0 (ORCPT ); Wed, 4 May 2022 07:45:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52792 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1348917AbiEDLpY (ORCPT ); Wed, 4 May 2022 07:45:24 -0400 Received: from mail-pl1-x62f.google.com (mail-pl1-x62f.google.com [IPv6:2607:f8b0:4864:20::62f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F31E3E0D2 for ; Wed, 4 May 2022 04:41:47 -0700 (PDT) Received: by mail-pl1-x62f.google.com with SMTP id i1so1167560plg.7 for ; Wed, 04 May 2022 04:41:47 -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=jWSHVu+7IAWvBpqPb+jQsUxTFN1rZcSZyH+a13sKnuI=; b=IHL89BZYzhXlV38jI5gZdoO7MBcW6BvpVmm3/+33MI9uuOsLc6RAW1+BymgrGxnfdt CtcVmPbyfKgQWBSqW9vZ75VGKum1CCCcw9t9L4kRkZdeMvOO/O0QMU1nGekacufNJqNE KSUf8emo8lGijn7aX3RVQrcwqE6hnFx9dtQGM= 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=jWSHVu+7IAWvBpqPb+jQsUxTFN1rZcSZyH+a13sKnuI=; b=1XY9Vmac9vh+ttG+/g27L2+a+ZK6BnLTTHyTNymImzZw19jK4tkgxLkbOrpcDbK++2 Fxz8b9dkAkABsDjKeFIyJ/TEzvFOkt60rcE66pXSbZr6i75U8AQoTEOFAzssyS2AO//r OcNHAISeYTjfJHs5j3EYdr6QdlEqGg4zSVOPeh4b+gckcjZIVQ8uT7qPjLReDPZ4hHts dGsKjOLcqGd3ZxAi7fouBR96Y51yRUVDJwkzc3YRZOjzS0kW0OXMvetdH/uBPFpX9psn zEWdrNGHcP7MqLZmncmNUPj2FDNHEqpXdmA4rrwZrgTwhkEcf+F6ouax+8ZqsptTw6CY qCNg== X-Gm-Message-State: AOAM5314+sX0LrhnGli5uqT21AMGlUhlcbkcyMZ2TwURtqr+57BfRZ9e IpYwxG5W4z1DAinrHLhK30t/mg== X-Google-Smtp-Source: ABdhPJxhxCXzI7wNrMf1pZ0x9mGHP4ldE78j55EmFNfzRi2aTDacO5xEKJEhpQ/Wh07jH+s2gVYSsA== X-Received: by 2002:a17:90a:5d08:b0:1d7:9587:9288 with SMTP id s8-20020a17090a5d0800b001d795879288mr9750437pji.204.1651664507494; Wed, 04 May 2022 04:41:47 -0700 (PDT) Received: from localhost.localdomain ([183.83.137.38]) by smtp.gmail.com with ESMTPSA id k15-20020aa790cf000000b0050dc7628174sm8027498pfk.78.2022.05.04.04.41.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 04 May 2022 04:41:47 -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 , Tommaso Merciai Cc: Matteo Lisi , dri-devel@lists.freedesktop.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, NXP Linux Team , linux-amarula , Jagan Teki Subject: [PATCH v2 09/12] drm: bridge: samsung-dsim: Add atomic_get_input_bus_fmts Date: Wed, 4 May 2022 17:10:18 +0530 Message-Id: <20220504114021.33265-10-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220504114021.33265-1-jagan@amarulasolutions.com> References: <20220504114021.33265-1-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. v2: * none 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 bd78cef890e4..407abd488005 100644 --- a/drivers/gpu/drm/bridge/samsung-dsim.c +++ b/drivers/gpu/drm/bridge/samsung-dsim.c @@ -1340,6 +1340,32 @@ 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, @@ -1374,6 +1400,7 @@ 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,