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: 12978778 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 44B51ECAAD8 for ; Fri, 16 Sep 2022 18:19:42 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8715B10ED81; Fri, 16 Sep 2022 18:19:33 +0000 (UTC) Received: from mail-pj1-x1033.google.com (mail-pj1-x1033.google.com [IPv6:2607:f8b0:4864:20::1033]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9CF3110ED7D for ; Fri, 16 Sep 2022 18:19:19 +0000 (UTC) Received: by mail-pj1-x1033.google.com with SMTP id q9-20020a17090a178900b0020265d92ae3so470722pja.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=1evSrn7rNdq5cBYumkdu6lQmN2m+Upo6c+VtZjCgq4Z2FAY9FGiP8oDvh2Tmv21E9p PH1P+sct7CeNGqHxkhxI2jY/WTNvj52Pnle2MB9x3MGbDw+c3q/wcM+SOs3d2UGR+3DJ 6js66OXyAPYG0S+TGObMab/NxG4pU36d3ZSrq6DOD2L/Pxi1SGW51Sk6FzuODtwwbBPf 8RFORV+nXWhmUZXYlqYKtswoV6zmts+pD8FyVAwEo9u4/3uXmfY7OJWQRjouGvhD/jcz Wg2GDconn3XGK6qzwuBQ3aoIyPYMG8lFeoNVdkfAYeGjHl8DPC1ytaNgysY9DNhYie57 bhww== X-Gm-Message-State: ACrzQf3OG2SQWOx6JHiEe0Zo4g9i8cHHxgYNYfxlSymcfHlbhb1JNSpf UqY6NO6lXBKuMn/s77tPysxELQ== 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 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 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: linux-samsung-soc@vger.kernel.org, Matteo Lisi , dri-devel@lists.freedesktop.org, NXP Linux Team , linux-amarula , linux-arm-kernel@lists.infradead.org, Jagan Teki Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" 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,