From patchwork Wed Jul 20 15:52:05 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jagan Teki X-Patchwork-Id: 592075 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 EFD38C433EF for ; Wed, 20 Jul 2022 15:53:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230016AbiGTPx3 (ORCPT ); Wed, 20 Jul 2022 11:53:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59136 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229456AbiGTPx2 (ORCPT ); Wed, 20 Jul 2022 11:53:28 -0400 Received: from mail-pf1-x432.google.com (mail-pf1-x432.google.com [IPv6:2607:f8b0:4864:20::432]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E8A174BD18 for ; Wed, 20 Jul 2022 08:53:27 -0700 (PDT) Received: by mail-pf1-x432.google.com with SMTP id g12so1074825pfb.3 for ; Wed, 20 Jul 2022 08:53:27 -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=0eeL5YJ6K1K/xYPiM4D/8wsBy92RLKZITtI/QG6TU2E=; b=C/ZB4MD+XhCadB9ByRb9zQVH3CkP5PPzXZ0p8wDhr2QbFnziWRPN6HojLxGEiQ2Ei1 pe+MJcwaKoX6VAsnqGIQk6s/p21WSoP/63x9Tx0CrO+/yKoDruuZl7zDAE72TnZoR1H1 ODorIPWnbGQRf+zU58YGZ/D5lQaIMxfYiHn/8= 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=0eeL5YJ6K1K/xYPiM4D/8wsBy92RLKZITtI/QG6TU2E=; b=5SUEXIWbg49k3i1Is1qLO33IEKAXd5BYcEkKe41B5yLc4Bar/1XEdfZSoDDRm4QKe7 pPybMoyPefmjGlsd9P+SDKX1FGLcSXz6Gbu57ZIZv677RsLRv+lBoBQOVRbRN5haWPHI jPDVKxdXU8GHtwbjHe7mWfrIviznY2HH8q695QeNFVF5HSqRpXpvG5OqBwKVHtHD9Zh0 FIUlcyf2ioGwgB5gDUEtKUL5/BU1Bd891vuUhnlKKgRERJeuc1ZVRV5Ms15n3bJ6kDT4 JKysjdSTJv88kW18nHSSjvrNlpZTltZi/f8CKF4Fq4PUC0zGeeZ0VdOj5I4Uu8L1iIP+ h7FQ== X-Gm-Message-State: AJIora/Yhi2hCyGZDuxTgz6SMjqnlmooYDpYGN1/roATFfJ9jTkWdkjy gZmglUcPzrmzBLOn5ltbA5yyUQ== X-Google-Smtp-Source: AGRyM1sZ16aLGbhGSuthIDLv8wJdyw4xIzY5kH9mfBVhtnoeLGBHmAM4LeECI6EWetU0paphjwCaNw== X-Received: by 2002:a63:4cf:0:b0:41a:617f:e195 with SMTP id 198-20020a6304cf000000b0041a617fe195mr4269823pge.89.1658332407383; Wed, 20 Jul 2022 08:53:27 -0700 (PDT) Received: from localhost.localdomain ([2405:201:c00a:a073:d177:d5:aee:4f03]) by smtp.gmail.com with ESMTPSA id a8-20020a170902710800b0015e8d4eb1d7sm13919198pll.33.2022.07.20.08.53.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 20 Jul 2022 08:53:27 -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 08/13] drm: bridge: samsung-dsim: Add module init, exit Date: Wed, 20 Jul 2022 21:22:05 +0530 Message-Id: <20220720155210.365977-9-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 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. v3, v2, v1: * none 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 5eb594ea0bdf..5a0fea30e9e8 100644 --- a/drivers/gpu/drm/bridge/samsung-dsim.c +++ b/drivers/gpu/drm/bridge/samsung-dsim.c @@ -1737,6 +1737,28 @@ 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("Jagan Teki "); MODULE_DESCRIPTION("Samsung MIPI DSIM controller bridge"); MODULE_LICENSE("GPL");