From patchwork Sun Jul 4 09:02:22 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jagan Teki X-Patchwork-Id: 470131 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2E1B5C07E96 for ; Sun, 4 Jul 2021 09:05:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1CB4661090 for ; Sun, 4 Jul 2021 09:05:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229698AbhGDJHm (ORCPT ); Sun, 4 Jul 2021 05:07:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60082 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229492AbhGDJHm (ORCPT ); Sun, 4 Jul 2021 05:07:42 -0400 Received: from mail-pj1-x1035.google.com (mail-pj1-x1035.google.com [IPv6:2607:f8b0:4864:20::1035]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 58E11C061762 for ; Sun, 4 Jul 2021 02:05:06 -0700 (PDT) Received: by mail-pj1-x1035.google.com with SMTP id n11so9580123pjo.1 for ; Sun, 04 Jul 2021 02:05:06 -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=LDJhbX+YMl3evTa07XA+cYBo4VfmU7H6Kne/zU0MCxI=; b=MzU6XoPBmW8oZc8sFFtNdNj7nBMBEITvj347sE61nkA/4LHtDJQ/adSkdZsxF9I6f5 7RCsUnSCy7i0MBKTALe5RQAyETtpQd3atLLGO8KGGRj4fqfxhS6HRWy3OjweDv3VKVtL +syAh8R08cMBsMYbrksHRa2cPU+yJ0uDgfU9s= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=LDJhbX+YMl3evTa07XA+cYBo4VfmU7H6Kne/zU0MCxI=; b=MHtH9putagxVAi509M8hey0UeRjXPNO68zlYz4yC7ZxQonjee5pP+UJzdcCZv9tK71 ko690zs4HezJWTZlf14c1FtKc3mrm3X1nHxb71MrOIIw0BsCv6g09OYkWJxoupEarJh8 UEbMO0RNnzV9SnPX/FihUsiOOzQeqZ1c9lpJKm3ZmRHQ6MFzHv9i4jFtdQOT3ch49ilF /78/CminjPi1OJ5+9Ae3PFw0R/7LnmVMpjEnaY9yKoK8UGE3/JrMq2UARTY8Ks9rY6Hr pka+S1D1znOWczneSw+PRc4/YnPzTjArZYGgIm3Lq1eNsyiMkZFPpO44eB9cxtgxMuX6 yeqw== X-Gm-Message-State: AOAM530eS7/AoRuZEAlFP8PHBM8hzs1+JZKYyUrI8IhfnPSkdNAlek9E VCdyYtJHaSWa/xU8ALRmeAhrpg== X-Google-Smtp-Source: ABdhPJzIvvEMjIP/hh218sspQf7V0ep9uHZnLxmS0/zXxCMUJE2GejzApTBKIzS2W7ykhYnyWrTqcQ== X-Received: by 2002:a17:902:c00b:b029:129:c3:aeb7 with SMTP id v11-20020a170902c00bb029012900c3aeb7mr7305352plx.39.1625389505903; Sun, 04 Jul 2021 02:05:05 -0700 (PDT) Received: from localhost.localdomain ([2405:201:c00a:a884:1ae9:772f:6f0f:3e24]) by smtp.gmail.com with ESMTPSA id m24sm3360793pgd.60.2021.07.04.02.05.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 04 Jul 2021 02:05:05 -0700 (PDT) From: Jagan Teki To: Inki Dae , Joonyoung Shim , Seung-Woo Kim , Kyungmin Park , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Frieder Schrempf , Daniel Vetter , Marek Vasut , Krzysztof Kozlowski , Fabio Estevam 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: [RFC PATCH 09/17] drm: bridge: samsung-dsim: Add module init, exit Date: Sun, 4 Jul 2021 14:32:22 +0530 Message-Id: <20210704090230.26489-10-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210704090230.26489-1-jagan@amarulasolutions.com> References: <20210704090230.26489-1-jagan@amarulasolutions.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org Add module init and exit functions for the bridge to register and unregister dsi_driver. Exynos drm driver stack will register the platform_driver separately in the common of it's exynos_drm_drv.c including dsi_driver. Register again would return -EBUSY, so return 0 for such cases as dsi_driver is already registered. Signed-off-by: Jagan Teki --- drivers/gpu/drm/bridge/samsung-dsim.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/drivers/gpu/drm/bridge/samsung-dsim.c b/drivers/gpu/drm/bridge/samsung-dsim.c index eed6b3ffdea7..627580abd6df 100644 --- a/drivers/gpu/drm/bridge/samsung-dsim.c +++ b/drivers/gpu/drm/bridge/samsung-dsim.c @@ -1878,6 +1878,28 @@ struct platform_driver dsi_driver = { }, }; +static int __init samsung_mipi_dsim_init(void) +{ + int ret; + + ret = platform_driver_register(&dsi_driver); + + /** + * Exynos drm driver stack will register the platform_driver + * separately in the common of it's exynos_drm_drv.c including + * dsi_driver. Register again would return -EBUSY, so return 0 + * for such cases as dsi_driver is already registered. + */ + return ret == -EBUSY ? 0 : ret; +} +module_init(samsung_mipi_dsim_init); + +static void __exit samsung_mipi_dsim_exit(void) +{ + platform_driver_unregister(&dsi_driver); +} +module_exit(samsung_mipi_dsim_exit); + MODULE_AUTHOR("Tomasz Figa "); MODULE_AUTHOR("Andrzej Hajda "); MODULE_AUTHOR("Jagan Teki ");