From patchwork Wed Oct 5 15:13:06 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jagan Teki X-Patchwork-Id: 614108 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 2CE86C433FE for ; Wed, 5 Oct 2022 15:13:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230355AbiJEPNg (ORCPT ); Wed, 5 Oct 2022 11:13:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47518 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230381AbiJEPNd (ORCPT ); Wed, 5 Oct 2022 11:13:33 -0400 Received: from mail-io1-xd2d.google.com (mail-io1-xd2d.google.com [IPv6:2607:f8b0:4864:20::d2d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CBD7D6E2EA for ; Wed, 5 Oct 2022 08:13:32 -0700 (PDT) Received: by mail-io1-xd2d.google.com with SMTP id p70so1104148iod.13 for ; Wed, 05 Oct 2022 08:13:32 -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 :message-id:reply-to; bh=eqWkyv52rZKBGpE2JLSJud8lD9bHv8P4xkrBjD3bCbk=; b=He75xA4RM16aQ5VAKk2CxqvdI6pjsnu6+UFugHC57bxnpdSBZt2BZTLIu2O3FPz2pu yCc0p0nYVT3e6OoodzV/XLO1lLZq7lRX591XhdSRI75kLXWmrnt4tlojEGqT9dIsLem0 s84PEvsF3VrcORLzi4eIq1F3/j92Tvgd8EWbo= 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:message-id:reply-to; bh=eqWkyv52rZKBGpE2JLSJud8lD9bHv8P4xkrBjD3bCbk=; b=7q+9c+OFGuWSU6UZKZ4RX64AuMN0xNp0FuWgs26XYXuxgaeBoaNl+5Kb5webGqGI/z SDF/TQLWFZ5PUvBSB4Td92Qfxy45db5vFJapSf86ioQcQZzvL4IKXSJo8fND64m/0WHd ZGoFOQzZP6dJTzeO8Q/Yx1B+hjrqo4IvWw4H0rN2L6AC1BnojlcsurMsDOOQIr1AjMB8 IHahfp1Dj/ZuJKN7sIJZmKSbj2yaef/NdnzGUyRMELsIXHbSHloGWAknz1Z8faY3RbLL wTEPSPubYPMBkLKcS/okPJ8v7SLCv06W1WGtirHeaUvz0dt0t8GSx7JbKuNJiQ0vQguf 7EHw== X-Gm-Message-State: ACrzQf17I3a6IwT3zQdXPEjErQwycrP+ANaISns7P75I0cTWRmz0hMdw ztbwOmfCqa+cDzMhpCs59L+tSQ== X-Google-Smtp-Source: AMsMyM6O969f4KToRThu6eJakGSR2VtKkHVrZVNGmAwLNm1J8v+vxu/NoQb2o63ygSJsjXhrsOXKuQ== X-Received: by 2002:a02:8804:0:b0:35b:7425:82af with SMTP id r4-20020a028804000000b0035b742582afmr52577jai.21.1664982812516; Wed, 05 Oct 2022 08:13:32 -0700 (PDT) Received: from j-ThinkPad-E14-Gen-2.stthomas.edu ([140.209.96.21]) by smtp.gmail.com with ESMTPSA id w15-20020a056602034f00b0068a235db030sm7089276iou.27.2022.10.05.08.13.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 05 Oct 2022 08:13:32 -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 v7 07/10] drm: bridge: samsung-dsim: Add atomic_get_input_bus_fmts Date: Wed, 5 Oct 2022 20:43:06 +0530 Message-Id: <20221005151309.7278-8-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221005151309.7278-1-jagan@amarulasolutions.com> References: <20221005151309.7278-1-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. v7, 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 41970e794a7c..f714e49c1eab 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,