From patchwork Fri Sep 16 18:17:28 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jagan Teki X-Patchwork-Id: 608179 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 95373C6FA82 for ; Fri, 16 Sep 2022 18:19:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229901AbiIPSTV (ORCPT ); Fri, 16 Sep 2022 14:19:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58004 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229932AbiIPSTU (ORCPT ); Fri, 16 Sep 2022 14:19:20 -0400 Received: from mail-pj1-x102f.google.com (mail-pj1-x102f.google.com [IPv6:2607:f8b0:4864:20::102f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E17E1B6D65 for ; Fri, 16 Sep 2022 11:19:19 -0700 (PDT) Received: by mail-pj1-x102f.google.com with SMTP id fs14so21822631pjb.5 for ; Fri, 16 Sep 2022 11:19:19 -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=6/ckE0N+vNzaxGLgwJSuWT0/q2cuiYdOQMuwOn2B7t8=; b=DMpejqyky6AsrmEC9aRTqIJN9sjXiE8K8ml5RDHRRAca85MCaBszwjBCd34wljuWDE j29qGXmvPuZlKoNv5Bh7zlCXZzBHhhYs329lV7Fo11VazHvQDZPgo4b24xSH+Yu6QMQO mDhj6pmJefImPqNsr9vJNzQxJFi7jGpOMy9G4= 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=6/ckE0N+vNzaxGLgwJSuWT0/q2cuiYdOQMuwOn2B7t8=; b=Ah6Bc7rZRlI5qNo1HPzU7H2D5aCnjO2s8G1zEJ355cfXMIrSDOWhDP2b/VSXjqlGz2 J1PV0f7qW5PANQ0czhBlK72p2mkU8qSJrOUT+pYUXha9gv1ZToCYI+8K1P8wVdE6seJq 7bNc639XgVu3b/UV2/qiWSNO9qcpwgGdDijIxHQ50SOkru1kTcTHQs34zI6ARzV46mzk F5iBoUAvhG7WKlVqiMSa6/aMHFhNgnVjOcNouWwGHkYaDnGJTBbZ4fMG5nkiuKL9Rane SxVE2R61jP5nlhkAS1ftHaJvA4uxQOPFcPu/b8IRSzkK0TbtYyqsRsjA9LJHLxagxaAH JaUA== X-Gm-Message-State: ACrzQf2eg6LKezJqN0w8MXMo4ipoaeL53HMZRVG+hv1rCSWQ5iy0uz2U FldkIlhcigF6AWDp8C9MRftyJA== X-Google-Smtp-Source: AMsMyM4PFKPfJXE+dxrQtzX/R5VZWUx6U+gQWD2XSIw5i/dxXXsp6m3QxW4LtnOhDMh2HsDgC9Nsaw== X-Received: by 2002:a17:902:b94c:b0:178:336f:13d6 with SMTP id h12-20020a170902b94c00b00178336f13d6mr1127317pls.64.1663352359234; Fri, 16 Sep 2022 11:19:19 -0700 (PDT) Received: from localhost.localdomain ([2405:201:c00a:a073:ae5d:6ee4:5c2f:6733]) by smtp.gmail.com with ESMTPSA id d14-20020a17090a6a4e00b002007b60e288sm1770000pjm.23.2022.09.16.11.19.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 16 Sep 2022 11:19:18 -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 v5 08/11] drm: bridge: samsung-dsim: Add atomic_get_input_bus_fmts Date: Fri, 16 Sep 2022 23:47:28 +0530 Message-Id: <20220916181731.89764-9-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220916181731.89764-1-jagan@amarulasolutions.com> References: <20220916181731.89764-1-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. 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 60f22c506c0f..527fef6f1ff6 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, @@ -1368,6 +1395,7 @@ 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,