From patchwork Wed Jul 20 15:52:07 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jagan Teki X-Patchwork-Id: 592074 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 5310EC433EF for ; Wed, 20 Jul 2022 15:53:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230203AbiGTPxn (ORCPT ); Wed, 20 Jul 2022 11:53:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59274 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229456AbiGTPxm (ORCPT ); Wed, 20 Jul 2022 11:53:42 -0400 Received: from mail-pl1-x629.google.com (mail-pl1-x629.google.com [IPv6:2607:f8b0:4864:20::629]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CCF574BD18 for ; Wed, 20 Jul 2022 08:53:41 -0700 (PDT) Received: by mail-pl1-x629.google.com with SMTP id k16so583513pls.8 for ; Wed, 20 Jul 2022 08:53:41 -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=3PaVrZ0eRNjr+pr3ZZXawjElGckp5XUV6/rIxT+wqok=; b=XAWPI9yhedgZbuZQ4FH8jZaD5AaDAof/z9hLAnw19sGJyyeRa8YawA92DGQwd164Ep C7ryWnPgJRg0nnopxbfKtK7KxuIgWBTpNKLqMHR7dtV/N114zexH6X1UNWI6hGywYaZt BNKyuhcxr9rTUkYpmXYjji4pmV2W6eJ5/nTaY= 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=3PaVrZ0eRNjr+pr3ZZXawjElGckp5XUV6/rIxT+wqok=; b=42qH5zy+64eIal7ANNtNRhBwXw1OaB5Ir2owfPxdZ7zPudp1wZI7212NLbJtAbwDmZ 253x9EY00FgZbQgd3BEal8UTkX1oKTBhuMJVR/t1eoYqmnRq1bB/NGfjIdAT+Tts/WHO ZSrU9WvknSZw5gqIfefkJ4KlG5Vdlh6jIvoyEx3/GF8nyvCbDMS6Gs69/cVryAWjzQWd PwIJ6+fmdO4CXatiqihEXcX06aFjBk0a3DDzkaoFLTgUqSfpmzw4NSEZNQevNMP9E4f7 HjOqSNwAgtRDsL6VTWDA4VjZdD1K2sUepgB/0W+kA4CEqyxswV454XpcFzj7aT9/20Ea aPxQ== X-Gm-Message-State: AJIora/NTDigqMNagpB+jiU39OiMMnJiYrLFPmBqqLAVO3viqkcrkqKh ysorbe80Ezb5hQXzuDBiAldKKw== X-Google-Smtp-Source: AGRyM1uSqluZlQGGuG4DX9SfP59bqukpblCQiN+wllXyBZKfba7SfGioro+1EVRUsx1g+R/tWLL73A== X-Received: by 2002:a17:903:191:b0:16c:3d49:b0c8 with SMTP id z17-20020a170903019100b0016c3d49b0c8mr39502922plg.95.1658332421306; Wed, 20 Jul 2022 08:53:41 -0700 (PDT) Received: from localhost.localdomain ([2405:201:c00a:a073:d177:d5:aee:4f03]) by smtp.gmail.com with ESMTPSA id a8-20020a170902710800b0015e8d4eb1d7sm13919198pll.33.2022.07.20.08.53.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 20 Jul 2022 08:53:40 -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 v3 10/13] drm: bridge: samsung-dsim: Add atomic_get_input_bus_fmts Date: Wed, 20 Jul 2022 21:22:07 +0530 Message-Id: <20220720155210.365977-11-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220720155210.365977-1-jagan@amarulasolutions.com> References: <20220720155210.365977-1-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. 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 376e9682e130..2584343b767a 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 @@ -1339,6 +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, @@ -1378,6 +1405,7 @@ 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,