From patchwork Wed May 4 11:40:12 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jagan Teki X-Patchwork-Id: 12837710 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 EFF26C433EF for ; Wed, 4 May 2022 11:41:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1348916AbiEDLok (ORCPT ); Wed, 4 May 2022 07:44:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52564 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1348917AbiEDLoj (ORCPT ); Wed, 4 May 2022 07:44:39 -0400 Received: from mail-pj1-x1031.google.com (mail-pj1-x1031.google.com [IPv6:2607:f8b0:4864:20::1031]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DEA7BE0D2 for ; Wed, 4 May 2022 04:41:03 -0700 (PDT) Received: by mail-pj1-x1031.google.com with SMTP id iq2-20020a17090afb4200b001d93cf33ae9so4925533pjb.5 for ; Wed, 04 May 2022 04:41:03 -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=VdD/wGuLMDzQpZtAEHDiK9YZwN0IPCd8Y4aW5A9u8PY=; b=hf7zZJvFwJauSkyXVeWkDRtHNkmvKRNwJja0aCJjitVuqn0rZ/G1qRLFVAkk6AQlwq FFbI8JUUJBNr8y/mJ5RvChuZDt/kOBF5Emqi3R/FXybLYjt6DssBfMb7+DkozBN1tua5 d2DgAn3WCVtMAdBLnIlEHwaN5ySulFkbGDWG4= 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=VdD/wGuLMDzQpZtAEHDiK9YZwN0IPCd8Y4aW5A9u8PY=; b=nde54Y9Zw0C9y5QkhMmEzY/BBfAO/Z/XN/PWkJj4WX9vUn45hBbEf43Srzo0Afj1O8 0R0LUgXpmR3tH92N4xfatmU9BBC55EZSizvszkZBZ2zk0PfW7z/yRxtqA4tTIt2MWFJH TVqC4+Ya6bsUxF/43ng1Tj+ubq8g1Pgh2pZkD3Ot8LyRaGN2tWRPPnglunPbQMkTEPf8 8na/RlZqJNVp2AtIcjX5yAFBr5zxmYS8H6trgzPTODDmuoT2cHLHbgqJeifSm/JQhWMp CeH7MbIroMQT8YiINGwtsk2f02uXPBkKq0nIHlHkdqtUog4R8uTlV9tUE0QudQGDjQxv 2v7w== X-Gm-Message-State: AOAM532QAKs7OCWJnNr5aJM6SCEMDGig0qH4qT7lQRVoAU5A658rG50c PSShDgEnklpBhAbWaN9YJ5Zm+Q== X-Google-Smtp-Source: ABdhPJxQ/Ey7Ts8xFHKdtBw1BihEPT5ET563AMQiQIldEEXMR01uBieFLEoZXcQajLHNZxRIHNjIMQ== X-Received: by 2002:a17:90a:170c:b0:1dc:20c4:6354 with SMTP id z12-20020a17090a170c00b001dc20c46354mr9874828pjd.113.1651664463136; Wed, 04 May 2022 04:41:03 -0700 (PDT) Received: from localhost.localdomain ([183.83.137.38]) by smtp.gmail.com with ESMTPSA id k15-20020aa790cf000000b0050dc7628174sm8027498pfk.78.2022.05.04.04.40.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 04 May 2022 04:41:02 -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 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 v2 03/12] drm: bridge: samsung-dsim: Handle platform init via driver_data Date: Wed, 4 May 2022 17:10:12 +0530 Message-Id: <20220504114021.33265-4-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220504114021.33265-1-jagan@amarulasolutions.com> References: <20220504114021.33265-1-jagan@amarulasolutions.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org In order to make a common Samsung DSIM bridge driver some platform specific glue code needs to maintain separately as it is hard to maintain platform specific glue and conventional component_ops on the drm bridge drivers side. This patch is trying to support that glue code initialization in the form of platform_init flag in driver_data. So, the platforms which enable platform_init flags will handle all platform specific initialization via samsung_dsim_plat_probe. The Platform probe is responsible to - initialize samsung_dsim_plat_data and install hooks - initialize component_ops - preserve samsung_dsim structure pointer v2: * fix samsung_dsim_plat_probe return pointer v1: * use platform_init instead of exynos_specific * handle component_ops in glue code Signed-off-by: Jagan Teki --- drivers/gpu/drm/bridge/samsung-dsim.c | 22 +++++++++++++++++----- include/drm/bridge/samsung-dsim.h | 1 + 2 files changed, 18 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/bridge/samsung-dsim.c b/drivers/gpu/drm/bridge/samsung-dsim.c index f23f06d55158..99f80e9c1600 100644 --- a/drivers/gpu/drm/bridge/samsung-dsim.c +++ b/drivers/gpu/drm/bridge/samsung-dsim.c @@ -370,6 +370,7 @@ static const struct samsung_dsim_driver_data exynos3_dsi_driver_data = { .wait_for_reset = 1, .num_bits_resol = 11, .reg_values = reg_values, + .platform_init = true, }; static const struct samsung_dsim_driver_data exynos4_dsi_driver_data = { @@ -382,6 +383,7 @@ static const struct samsung_dsim_driver_data exynos4_dsi_driver_data = { .wait_for_reset = 1, .num_bits_resol = 11, .reg_values = reg_values, + .platform_init = true, }; static const struct samsung_dsim_driver_data exynos5_dsi_driver_data = { @@ -392,6 +394,7 @@ static const struct samsung_dsim_driver_data exynos5_dsi_driver_data = { .wait_for_reset = 1, .num_bits_resol = 11, .reg_values = reg_values, + .platform_init = true, }; static const struct samsung_dsim_driver_data exynos5433_dsi_driver_data = { @@ -403,6 +406,7 @@ static const struct samsung_dsim_driver_data exynos5433_dsi_driver_data = { .wait_for_reset = 0, .num_bits_resol = 12, .reg_values = exynos5433_reg_values, + .platform_init = true, }; static const struct samsung_dsim_driver_data exynos5422_dsi_driver_data = { @@ -414,6 +418,7 @@ static const struct samsung_dsim_driver_data exynos5422_dsi_driver_data = { .wait_for_reset = 1, .num_bits_resol = 12, .reg_values = exynos5422_reg_values, + .platform_init = true, }; static const struct of_device_id samsung_dsim_of_match[] = { @@ -1610,12 +1615,16 @@ static int samsung_dsim_probe(struct platform_device *pdev) dsi->bridge.of_node = dev->of_node; dsi->bridge.type = DRM_MODE_CONNECTOR_DSI; - dsi->plat_data = samsung_dsim_plat_probe(dsi); - if (IS_ERR(dsi->plat_data)) { - ret = PTR_ERR(dsi->plat_data); - goto err_disable_runtime; + if (dsi->driver_data->platform_init) { + dsi->plat_data = samsung_dsim_plat_probe(dsi); + ret = IS_ERR(dsi->plat_data) ? PTR_ERR(dsi->plat_data) : 0; + } else { + ret = mipi_dsi_host_register(&dsi->dsi_host); } + if (ret) + goto err_disable_runtime; + return 0; err_disable_runtime: @@ -1630,7 +1639,10 @@ static int samsung_dsim_remove(struct platform_device *pdev) pm_runtime_disable(&pdev->dev); - samsung_dsim_plat_remove(dsi); + if (dsi->driver_data->platform_init) + samsung_dsim_plat_remove(dsi); + else + mipi_dsi_host_unregister(&dsi->dsi_host); return 0; } diff --git a/include/drm/bridge/samsung-dsim.h b/include/drm/bridge/samsung-dsim.h index 5cf8570ac978..70224d20414b 100644 --- a/include/drm/bridge/samsung-dsim.h +++ b/include/drm/bridge/samsung-dsim.h @@ -41,6 +41,7 @@ struct samsung_dsim_driver_data { unsigned int wait_for_reset; unsigned int num_bits_resol; const unsigned int *reg_values; + bool platform_init; }; struct samsung_dsim_host_ops {