From patchwork Sat Oct 1 08:06:47 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jagan Teki X-Patchwork-Id: 612489 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 273FCC433F5 for ; Sat, 1 Oct 2022 08:09:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229563AbiJAIJa (ORCPT ); Sat, 1 Oct 2022 04:09:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49708 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229436AbiJAIJ2 (ORCPT ); Sat, 1 Oct 2022 04:09:28 -0400 Received: from mail-pf1-x42f.google.com (mail-pf1-x42f.google.com [IPv6:2607:f8b0:4864:20::42f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5045F37188 for ; Sat, 1 Oct 2022 01:09:27 -0700 (PDT) Received: by mail-pf1-x42f.google.com with SMTP id a29so6112176pfk.5 for ; Sat, 01 Oct 2022 01:09:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date; bh=TCY0x6eQvb6PuLAvx0r46OGP8xrnsAWIiZpENV9TAdU=; b=cmcIDOPWyqbSr7pCiw3qQJm123Se8QJDui2fvrAiSqAz85Uc+d2bQRPzrwn9IoRL29 glr2KmCPNnWeRNjQFMExegFyBgyxBaSu8dfLT/xhVp1lA/C8r3xgL/noWtXOff7ezNSK BCN88Kh6aT2ENMnt0191cVQntl5TUl+egkz0o= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date; bh=TCY0x6eQvb6PuLAvx0r46OGP8xrnsAWIiZpENV9TAdU=; b=SH8LvheRfX9DrmBwb/ZALKdQtJOCu0gwYGWB2KBWUo2G0Wo6qjtzaPnFUsJvdAqfgG FHxYOgy5t2WW7ofJfztxIS7BC5VfSHftK+kDsSGQ0T7g978KVdFKvL+CGZ9MMuA2FLRQ bVu43Oq6vFAJjdEPBjc6htB0lVtVirerE7P7pGiytj51LMMunsHHO627vE1T0nU13Zug suzavoiZKn1Cdb1n3vpkDn3IwvNTNLb94dV4Z5F9JAeWeMYFvIHQvw0H2F5J+4jC1VaJ kxq2NRXtDU5IOItAiCZ6bdc8UMytznBZeMFkjCIPnllJDGAq/7Zs4ShJt55i67Cvm/ls moMA== X-Gm-Message-State: ACrzQf3KARS3h+9kQlin3dIh9nnmdpKYWak9oXBNC+iTqbL2VSiAIEGg pYMJuAK0c9ZztQQYNmcPYucrjQ== X-Google-Smtp-Source: AMsMyM6MZyUR/fquK4gZ8vuUpoa5brQ0Dl6ssuq6KJE0MMIgNI+rmdEvrf35QwYtOGjFWhpOObHGyA== X-Received: by 2002:a62:ee0c:0:b0:558:5c4:97dc with SMTP id e12-20020a62ee0c000000b0055805c497dcmr12889924pfi.14.1664611766824; Sat, 01 Oct 2022 01:09:26 -0700 (PDT) Received: from localhost.localdomain ([2405:201:c00a:a073:7254:4392:bc7c:c69]) by smtp.gmail.com with ESMTPSA id c194-20020a624ecb000000b005409c9d2d41sm3167041pfb.62.2022.10.01.01.09.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 01 Oct 2022 01:09:26 -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 , Marek Vasut 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 v6 07/10] drm: bridge: samsung-dsim: Add atomic_get_input_bus_fmts Date: Sat, 1 Oct 2022 13:36:47 +0530 Message-Id: <20221001080650.1007043-8-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221001080650.1007043-1-jagan@amarulasolutions.com> References: <20221001080650.1007043-1-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. v6, v5, v4: * none v3: * include media-bus-format.h v2: * none v1: * new patch Signed-off-by: Jagan Teki --- drivers/gpu/drm/bridge/samsung-dsim.c | 28 +++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/drivers/gpu/drm/bridge/samsung-dsim.c b/drivers/gpu/drm/bridge/samsung-dsim.c index d0bb96a275fd..4fd77172bb4b 100644 --- a/drivers/gpu/drm/bridge/samsung-dsim.c +++ b/drivers/gpu/drm/bridge/samsung-dsim.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include @@ -1321,6 +1322,32 @@ 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, @@ -1384,6 +1411,7 @@ 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,