From patchwork Fri Apr 8 16:20:59 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jagan Teki X-Patchwork-Id: 559321 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 983F5C433EF for ; Fri, 8 Apr 2022 16:22:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230099AbiDHQYa (ORCPT ); Fri, 8 Apr 2022 12:24:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41620 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230173AbiDHQY3 (ORCPT ); Fri, 8 Apr 2022 12:24:29 -0400 Received: from mail-pj1-x1034.google.com (mail-pj1-x1034.google.com [IPv6:2607:f8b0:4864:20::1034]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9822FE339B for ; Fri, 8 Apr 2022 09:22:25 -0700 (PDT) Received: by mail-pj1-x1034.google.com with SMTP id nt14-20020a17090b248e00b001ca601046a4so12397574pjb.0 for ; Fri, 08 Apr 2022 09:22:25 -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=F25FQfPSS7j5Jl6aKgoVhvmm2u3Vlj8tvVo3HS+kjyo=; b=aBaLEom+igUlrFQZdiMs/QzKxvE93YL5BFrixVAL9mbjIoudJePpKPdcX/aFlKDhk8 ytH0zx+FwxLqndgHN8xZTMzR9HZ0ojs3YJWOhCmwDgYQ4agLP5A+MxS+kKE1oo5rr1RA uTVr/Q/2tnYD9z3hC5m7xlavoNduTKLaeMv1k= 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=F25FQfPSS7j5Jl6aKgoVhvmm2u3Vlj8tvVo3HS+kjyo=; b=Et5+XLdehOTYRLKaUNHeqg29EIFoZeEhUMnpBA47rDSR0ThxY8TVQ40Gj6YJ30NuKX 7ioJWNYjCKPbAulrbGEhztJju2wg6NZb6jDFNXViVSXKobFk18vny0O4PyjIUINFNXml o1MXNBfo3V1c0bu7x8YwFs13d6JWf/CULFljNdwsLWoPQuoYfx+7hLah1j5DwTrWY1cH 7waDiZskSMolmAvYC9uKsnV6wTTWHFA3WRhZYzzOxwkNd6PJcal2WgdviSmXg5clKJWI C4w0+PE/0TRmHTYpw8BMEEwlMLA6FMQs8e4KYfhVRxlKnzFUHWV0m6tWiQmoA7/cub1i T/jQ== X-Gm-Message-State: AOAM532kgYsPWpfrE4q/JgH5aiWrIcFIfOZ5afByPlRDJAaZInglSTbz /1Jx4cPFEBGj5KIXIzjvZ/MQGg== X-Google-Smtp-Source: ABdhPJyqoJ+F5cKD3e0t4GkmsEUp4pQLPVzZdPUzFFYovdmn2C/dAXiAG17M0ajaIbBriRTkKuEzPw== X-Received: by 2002:a17:902:6acc:b0:149:8f60:a526 with SMTP id i12-20020a1709026acc00b001498f60a526mr20139884plt.25.1649434945090; Fri, 08 Apr 2022 09:22:25 -0700 (PDT) Received: from j-ThinkPad-E14-Gen-2.domain.name ([45.249.78.214]) by smtp.gmail.com with ESMTPSA id n18-20020a056a0007d200b004fdac35672fsm24929863pfu.68.2022.04.08.09.22.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 08 Apr 2022 09:22:24 -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 , Rob Herring Cc: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, NXP Linux Team , linux-amarula , Jagan Teki Subject: [PATCH 02/11] drm: bridge: samsung-dsim: Handle platform init via driver_data Date: Fri, 8 Apr 2022 21:50:59 +0530 Message-Id: <20220408162108.184583-3-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220408162108.184583-1-jagan@amarulasolutions.com> References: <20220408162108.184583-1-jagan@amarulasolutions.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@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 and invocation 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 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 | 20 ++++++++++++++++---- include/drm/bridge/samsung-dsim.h | 1 + 2 files changed, 17 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/bridge/samsung-dsim.c b/drivers/gpu/drm/bridge/samsung-dsim.c index ee5d7e5518a6..0e6a5d1c7e4e 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[] = { @@ -1565,12 +1570,16 @@ 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)) { + if (dsi->driver_data->platform_init) { + dsi->plat_data = samsung_dsim_plat_probe(dsi); ret = PTR_ERR(dsi->plat_data); - goto err_disable_runtime; + } else { + ret = mipi_dsi_host_register(&dsi->dsi_host); } + if (ret) + goto err_disable_runtime; + return 0; err_disable_runtime: @@ -1585,7 +1594,10 @@ 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 59a43f9c4477..eca7eacb5910 100644 --- a/include/drm/bridge/samsung-dsim.h +++ b/include/drm/bridge/samsung-dsim.h @@ -39,6 +39,7 @@ 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 {