From mboxrd@z Thu Jan 1 00:00:00 1970 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=-8.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 2BF63C3B18C for ; Thu, 13 Feb 2020 18:58:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id ECE81217F4 for ; Thu, 13 Feb 2020 18:58:26 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="XrH+dwwB" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728242AbgBMS60 (ORCPT ); Thu, 13 Feb 2020 13:58:26 -0500 Received: from mail-pl1-f196.google.com ([209.85.214.196]:42838 "EHLO mail-pl1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726780AbgBMS6Z (ORCPT ); Thu, 13 Feb 2020 13:58:25 -0500 Received: by mail-pl1-f196.google.com with SMTP id e8so2691584plt.9; Thu, 13 Feb 2020 10:58:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:cc:references:from:autocrypt:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=4sbfXgq71Lw3rV1MfbUqA//xkH8k/BQruTGRX8wE71Y=; b=XrH+dwwBkvkzUT773puDhJFzQk/18wegXBfiOuU57s/5ZyPyf5HoV5HFa2mIhDkmsD 6LQuJ2P6obUijyjHQdXP7wlwA2wgR7adMpcZE6V6u3nh6OVLy+HYHW5WNARYe8o3rzi8 VkNdho5h78lDFKlXn9bWeIq/gF13GBWqPRTDCztWcrE0nkYCLMuA8U9XN7pzSBXRA8T8 nDZ4I/5SqFsF0rvc5HTLAJmcwhBAAMljDXjKKFWfG8+AuIASLKEuS7pcPc92LpWClSNY 9gUyN44Yr2dPADIC6BTm1owpaQ0WvWTcKgOo5aW8JNq4dkVKKbVyBpQXnmo6JccOGY55 SMGg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:autocrypt :message-id:date:user-agent:mime-version:in-reply-to :content-language:content-transfer-encoding; bh=4sbfXgq71Lw3rV1MfbUqA//xkH8k/BQruTGRX8wE71Y=; b=Um7NeiVMCLKrbD6X61FtQ3Q24HVU8Retm4viXTzR9/Pkgr5BEI9ZQQIh+7A+4S3pV7 7asb0kVNhp6fSjBb2L50OdqWrfDojOEH4v5DH+9igicWohLRyS/nQ6Lg5hWr5vnZZpfu OqdVP6FSBOEaP7xBJKZmDEaXf49GsFtRcFdYUOcBX8ylczT/Mupa7atmXFzkrdYjQ74Q aWBCYpi2C/DTBxJdBOIwLp3p+tAuDvD9/uSQW8uxGRJEgSiu7ewXvcMf9jvOr6rTocU9 kaH4fZ0X+JZ8QdvE9v/vhfX3ftcBZeSNIZQdCOXcqx7NdBs/zrAeTc5CmmTNcHnVn6Xc wV7A== X-Gm-Message-State: APjAAAWl0qVBoSR/lL4bvmSvb30Yget5T7JmNSdc+PoolZRIfMVYzOy3 pghz/DbbLX8dxxtRGxGjBbuhsmXH X-Google-Smtp-Source: APXvYqxQOJlqjdnHOmVbxzWipaSuMhxCrAsPSA51vXQledp5uG2W8ppDo60OIaUE0ZM/csyt6hv4HA== X-Received: by 2002:a17:90a:1e63:: with SMTP id w90mr6688896pjw.36.1581620304545; Thu, 13 Feb 2020 10:58:24 -0800 (PST) Received: from ziggy.stardust ([37.223.145.31]) by smtp.gmail.com with ESMTPSA id b12sm4099080pfr.26.2020.02.13.10.58.18 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 13 Feb 2020 10:58:23 -0800 (PST) Subject: Re: [resend PATCH v6 04/12] drm: mediatek: Omit warning on probe defers To: Enric Balletbo i Serra , matthias.bgg@kernel.org, robh+dt@kernel.org, mark.rutland@arm.com, ck.hu@mediatek.com, p.zabel@pengutronix.de, airlied@linux.ie, mturquette@baylibre.com, sboyd@kernel.org, ulrich.hecht+renesas@gmail.com, laurent.pinchart@ideasonboard.com Cc: sean.wang@mediatek.com, sean.wang@kernel.org, rdunlap@infradead.org, wens@csie.org, hsinyi@chromium.org, frank-w@public-files.de, drinkcat@chromium.org, linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, mbrugger@suse.com References: <20191207224740.24536-1-matthias.bgg@kernel.org> <20191207224740.24536-5-matthias.bgg@kernel.org> <48f9ec0c-1f1e-5a6c-283b-7efc4ce1bd5e@collabora.com> From: Matthias Brugger Autocrypt: addr=matthias.bgg@gmail.com; prefer-encrypt=mutual; keydata= mQINBFP1zgUBEAC21D6hk7//0kOmsUrE3eZ55kjc9DmFPKIz6l4NggqwQjBNRHIMh04BbCMY fL3eT7ZsYV5nur7zctmJ+vbszoOASXUpfq8M+S5hU2w7sBaVk5rpH9yW8CUWz2+ZpQXPJcFa OhLZuSKB1F5JcvLbETRjNzNU7B3TdS2+zkgQQdEyt7Ij2HXGLJ2w+yG2GuR9/iyCJRf10Okq gTh//XESJZ8S6KlOWbLXRE+yfkKDXQx2Jr1XuVvM3zPqH5FMg8reRVFsQ+vI0b+OlyekT/Xe 0Hwvqkev95GG6x7yseJwI+2ydDH6M5O7fPKFW5mzAdDE2g/K9B4e2tYK6/rA7Fq4cqiAw1+u EgO44+eFgv082xtBez5WNkGn18vtw0LW3ESmKh19u6kEGoi0WZwslCNaGFrS4M7OH+aOJeqK fx5dIv2CEbxc6xnHY7dwkcHikTA4QdbdFeUSuj4YhIZ+0QlDVtS1QEXyvZbZky7ur9rHkZvP ZqlUsLJ2nOqsmahMTIQ8Mgx9SLEShWqD4kOF4zNfPJsgEMB49KbS2o9jxbGB+JKupjNddfxZ HlH1KF8QwCMZEYaTNogrVazuEJzx6JdRpR3sFda/0x5qjTadwIW6Cl9tkqe2h391dOGX1eOA 1ntn9O/39KqSrWNGvm+1raHK+Ev1yPtn0Wxn+0oy1tl67TxUjQARAQABtClNYXR0aGlhcyBC cnVnZ2VyIDxtYXR0aGlhcy5iZ2dAZ21haWwuY29tPokCUgQTAQIAPAIbAwYLCQgHAwIGFQgC CQoLBBYCAwECHgECF4AWIQTmuZIYwPLDJRwsOhfZFAuyVhMC8QUCWt3scQIZAQAKCRDZFAuy VhMC8WzRD/4onkC+gCxG+dvui5SXCJ7bGLCu0xVtiGC673Kz5Aq3heITsERHBV0BqqctOEBy ZozQQe2Hindu9lasOmwfH8+vfTK+2teCgWesoE3g3XKbrOCB4RSrQmXGC3JYx6rcvMlLV/Ch YMRR3qv04BOchnjkGtvm9aZWH52/6XfChyh7XYndTe5F2bqeTjt+kF/ql+xMc4E6pniqIfkv c0wsH4CkBHqoZl9w5e/b9MspTqsU9NszTEOFhy7p2CYw6JEa/vmzR6YDzGs8AihieIXDOfpT DUr0YUlDrwDSrlm/2MjNIPTmSGHH94ScOqu/XmGW/0q1iar/Yr0leomUOeeEzCqQtunqShtE 4Mn2uEixFL+9jiVtMjujr6mphznwpEqObPCZ3IcWqOFEz77rSL+oqFiEA03A2WBDlMm++Sve 9jpkJBLosJRhAYmQ6ey6MFO6Krylw1LXcq5z1XQQavtFRgZoruHZ3XlhT5wcfLJtAqrtfCe0 aQ0kJW+4zj9/So0uxJDAtGuOpDYnmK26dgFN0tAhVuNInEVhtErtLJHeJzFKJzNyQ4GlCaLw jKcwWcqDJcrx9R7LsCu4l2XpKiyxY6fO4O8DnSleVll9NPfAZFZvf8AIy3EQ8BokUsiuUYHz wUo6pclk55PZRaAsHDX/fNr24uC6Eh5oNQ+v4Pax/gtyybkCDQRd1TkHARAAt1BBpmaH+0o+ deSyJotkrpzZZkbSs5ygBniCUGQqXpWqgrc7Uo/qtxOFL91uOsdX1/vsnJO9FyUv3ZNI2Thw NVGCTvCP9E6u4gSSuxEfVyVThCSPvRJHCG2rC+EMAOUMpxokcX9M2b7bBEbcSjeP/E4KTa39 q+JJSeWliaghUfMXXdimT/uxpP5Aa2/D/vcUUGHLelf9TyihHyBohdyNzeEF3v9rq7kdqamZ Ihb+WYrDio/SzqTd1g+wnPJbnu45zkoQrYtBu58n7u8oo+pUummOuTR2b6dcsiB9zJaiVRIg OqL8p3K2fnE8Ewwn6IKHnLTyx5T/r2Z0ikyOeijDumZ0VOPPLTnwmb780Nym3LW1OUMieKtn I3v5GzZyS83NontvsiRd4oPGQDRBT39jAyBr8vDRl/3RpLKuwWBFTs1bYMLu0sYarwowOz8+ Mn+CRFUvRrXxociw5n0P1PgJ7vQey4muCZ4VynH1SeVb3KZ59zcQHksKtpzz2OKhtX8FCeVO mHW9u4x8s/oUVMZCXEq9QrmVhdIvJnBCqq+1bh5UC2Rfjm/vLHwt5hes0HDstbCzLyiA0LTI ADdP77RN2OJbzBkCuWE21YCTLtc8kTQlP+G8m23K5w8k2jleCSKumprCr/5qPyNlkie1HC4E GEAfdfN+uLsFw6qPzSAsmukAEQEAAYkEbAQYAQgAIBYhBOa5khjA8sMlHCw6F9kUC7JWEwLx BQJd1TkHAhsCAkAJENkUC7JWEwLxwXQgBBkBCAAdFiEEUdvKHhzqrUYPB/u8L21+TfbCqH4F Al3VOQcACgkQL21+TfbCqH79RRAAtlb6oAL9y8JM5R1T3v02THFip8OMh7YvEJCnezle9Apq C6Vx26RSQjBV1JwSBv6BpgDBNXarTGCPXcre6KGfX8u1r6hnXAHZNHP7bFGJQiBv5RqGFf45 OhOhbjXCyHc0jrnNjY4M2jTkUC+KIuOzasvggU975nolC8MiaBqfgMB2ab5W+xEiTcNCOg3+ 1SRs5/ZkQ0iyyba2FihSeSw3jTUjPsJBF15xndexoc9jpi0RKuvPiJ191Xa3pzNntIxpsxqc ZkS1HSqPI63/urNezeSejBzW0Xz2Bi/b/5R9Hpxp1AEC3OzabOBATY/1Bmh2eAVK3xpN2Fe1 Zj7HrTgmzBmSefMcSXN0oKQWEI5tHtBbw5XUj0Nw4hMhUtiMfE2HAqcaozsL34sEzi3eethZ IvKnIOTmllsDFMbOBa8oUSoaNg7GzkWSKJ59a9qPJkoj/hJqqeyEXF+WTCUv6FcA8BtBJmVf FppFzLFM/QzF5fgDZmfjc9czjRJHAGHRMMnQlW88iWamjYVye57srNq9pUql6A4lITF7w00B 5PXINFk0lMcNUdkWipu24H6rJhOO6xSP4n6OrCCcGsXsAR5oH3d4TzA9iPYrmfXAXD+hTp82 s+7cEbTsCJ9MMq09/GTCeroTQiqkp50UaR0AvhuPdfjJwVYZfmMS1+5IXA/KY6DbGBAAs5ti AK0ieoZlCv/YxOSMCz10EQWMymD2gghjxojf4iwB2MbGp8UN4+++oKLHz+2j+IL08rd2ioFN YCJBFDVoDRpF/UnrQ8LsH55UZBHuu5XyMkdJzMaHRVQc1rzfluqx+0a/CQ6Cb2q7J2d45nYx 8jMSCsGj1/iU/bKjMBtuh91hsbdWCxMRW0JnGXxcEUklbhA5uGj3W4VYCfTQxwK6JiVt7JYp bX7JdRKIyq3iMDcsTXi7dhhwqsttQRwbBci0UdFGAG4jT5p6u65MMDVTXEgYfZy0674P06qf uSyff73ivwvLR025akzJui8MLU23rWRywXOyTINz8nsPFT4ZSGT1hr5VnIBs/esk/2yFmVoc FAxs1aBO29iHmjJ8D84EJvOcKfh9RKeW8yeBNKXHrcOV4MbMOts9+vpJgBFDnJeLFQPtTHuI kQXT4+yLDvwOVAW9MPLfcHlczq/A/nhGVaG+RKWDfJWNSu/mbhqUQt4J+RFpfx1gmL3yV8NN 7JXABPi5M97PeKdx6qc/c1o3oEHH8iBkWZIYMS9fd6rtAqV3+KH5Ors7tQVtwUIDYEvttmeO ifvpW6U/4au4zBYfvvXagbyXJhG9mZvz+jN1cr0/G2ZC93IbjFFwUmHtXS4ttQ4pbrX6fjTe lq5vmROjiWirpZGm+WA3Vx9QRjqfMdS5Ag0EXdU5SAEQAJu/Jk58uOB8HSGDSuGUB+lOacXC bVOOSywZkq+Ayv+3q/XIabyeaYMwhriNuXHjUxIORQoWHIHzTCqsAgHpJFfSHoM4ulCuOPFt XjqfEHkA0urB6S0jnvJ6ev875lL4Yi6JJO7WQYRs/l7OakJiT13GoOwDIn7hHH/PGUqQoZlA d1n5SVdg6cRd7EqJ+RMNoud7ply6nUSCRMNWbNqbgyWjKsD98CMjHa33SB9WQQSQyFlf+dz+ dpirWENCoY3vvwKJaSpfeqKYuqPVSxnqpKXqqyjNnG9W46OWZp+JV5ejbyUR/2U+vMwbTilL cIUpTgdmxPCA6J0GQjmKNsNKKYgIMn6W4o/LoiO7IgROm1sdn0KbJouCa2QZoQ0+p/7mJXhl tA0XGZhNlI3npD1lLpjdd42lWboU4VeuUp4VNOXIWU/L1NZwEwMIqzFXl4HmRi8MYbHHbpN5 zW+VUrFfeRDPyjrYpax+vWS+l658PPH+sWmhj3VclIoAU1nP33FrsNfp5BiQzao30rwe4ntd eEdPENvGmLfCwiUV2DNVrmJaE3CIUUl1KIRoB5oe7rJeOvf0WuQhWjIU98glXIrh3WYd7vsf jtbEXDoWhVtwZMShMvp7ccPCe2c4YBToIthxpDhoDPUdNwOssHNLD8G4JIBexwi4q7IT9lP6 sVstwvA5ABEBAAGJAjYEGAEIACAWIQTmuZIYwPLDJRwsOhfZFAuyVhMC8QUCXdU5SAIbDAAK CRDZFAuyVhMC8bXXD/4xyfbyPGnRYtR0KFlCgkG2XWeWSR2shSiM1PZGRPxR888zA2WBYHAk 7NpJlFchpaErV6WdFrXQjDAd9YwaEHucfS7SAhxIqdIqzV5vNFrMjwhB1N8MfdUJDpgyX7Zu k/Phd5aoZXNwsCRqaD2OwFZXr81zSXwE2UdPmIfTYTjeVsOAI7GZ7akCsRPK64ni0XfoXue2 XUSrUUTRimTkuMHrTYaHY3544a+GduQQLLA+avseLmjvKHxsU4zna0p0Yb4czwoJj+wSkVGQ NMDbxcY26CMPK204jhRm9RG687qq6691hbiuAtWABeAsl1AS+mdS7aP/4uOM4kFCvXYgIHxP /BoVz9CZTMEVAZVzbRKyYCLUf1wLhcHzugTiONz9fWMBLLskKvq7m1tlr61mNgY9nVwwClMU uE7i1H9r/2/UXLd+pY82zcXhFrfmKuCDmOkB5xPsOMVQJH8I0/lbqfLAqfsxSb/X1VKaP243 jzi+DzD9cvj2K6eD5j5kcKJJQactXqfJvF1Eb+OnxlB1BCLE8D1rNkPO5O742Mq3MgDmq19l +abzEL6QDAAxn9md8KwrA3RtucNh87cHlDXfUBKa7SRvBjTczDg+HEPNk2u3hrz1j3l2rliQ y1UfYx7Vk/TrdwUIJgKS8QAr8Lw9WuvY2hSqL9vEjx8VAkPWNWPwrQ== Message-ID: <64cca307-0045-7f82-9916-fa45095be2c2@gmail.com> Date: Thu, 13 Feb 2020 19:58:16 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 MIME-Version: 1.0 In-Reply-To: <48f9ec0c-1f1e-5a6c-283b-7efc4ce1bd5e@collabora.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 09/12/2019 10:39, Enric Balletbo i Serra wrote: > Hi Matthias, > > On 7/12/19 23:47, matthias.bgg@kernel.org wrote: >> From: Matthias Brugger >> >> It can happen that the mmsys clock drivers aren't probed before the >> platform driver gets invoked. The platform driver used to print a warning >> that the driver failed to get the clocks. Omit this error on >> the defered probe path. >> >> Signed-off-by: Matthias Brugger >> --- >> drivers/gpu/drm/mediatek/mtk_disp_color.c | 5 ++++- >> drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 5 ++++- >> drivers/gpu/drm/mediatek/mtk_disp_rdma.c | 5 ++++- >> drivers/gpu/drm/mediatek/mtk_dpi.c | 12 +++++++++--- >> drivers/gpu/drm/mediatek/mtk_drm_ddp.c | 4 +++- >> drivers/gpu/drm/mediatek/mtk_dsi.c | 8 ++++++-- >> drivers/gpu/drm/mediatek/mtk_hdmi.c | 4 +++- >> 7 files changed, 33 insertions(+), 10 deletions(-) >> >> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_color.c b/drivers/gpu/drm/mediatek/mtk_disp_color.c >> index 59de2a46aa49..8f0fc96ef7bc 100644 >> --- a/drivers/gpu/drm/mediatek/mtk_disp_color.c >> +++ b/drivers/gpu/drm/mediatek/mtk_disp_color.c >> @@ -118,7 +118,10 @@ static int mtk_disp_color_probe(struct platform_device *pdev) >> ret = mtk_ddp_comp_init(dev, dev->of_node, &priv->ddp_comp, comp_id, >> &mtk_disp_color_funcs); >> if (ret) { >> - dev_err(dev, "Failed to initialize component: %d\n", ret); >> + if (ret != -EPROBE_DEFER) >> + dev_err(dev, "Failed to initialize component: %d\n", >> + ret); >> + >> return ret; >> } >> >> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c >> index 21851756c579..7487b0182c05 100644 >> --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c >> +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c >> @@ -285,7 +285,10 @@ static int mtk_disp_ovl_probe(struct platform_device *pdev) >> ret = mtk_ddp_comp_init(dev, dev->of_node, &priv->ddp_comp, comp_id, >> &mtk_disp_ovl_funcs); >> if (ret) { >> - dev_err(dev, "Failed to initialize component: %d\n", ret); >> + if (ret != -EPROBE_DEFER) >> + dev_err(dev, "Failed to initialize component: %d\n", >> + ret); >> + >> return ret; >> } >> >> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c >> index 405afef31407..835ea8f8dab9 100644 >> --- a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c >> +++ b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c >> @@ -287,7 +287,10 @@ static int mtk_disp_rdma_probe(struct platform_device *pdev) >> ret = mtk_ddp_comp_init(dev, dev->of_node, &priv->ddp_comp, comp_id, >> &mtk_disp_rdma_funcs); >> if (ret) { >> - dev_err(dev, "Failed to initialize component: %d\n", ret); >> + if (ret != -EPROBE_DEFER) >> + dev_err(dev, "Failed to initialize component: %d\n", >> + ret); >> + >> return ret; >> } >> >> diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c >> index be6d95c5ff25..9ed32470ad02 100644 >> --- a/drivers/gpu/drm/mediatek/mtk_dpi.c >> +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c >> @@ -700,21 +700,27 @@ static int mtk_dpi_probe(struct platform_device *pdev) >> dpi->engine_clk = devm_clk_get(dev, "engine"); >> if (IS_ERR(dpi->engine_clk)) { >> ret = PTR_ERR(dpi->engine_clk); >> - dev_err(dev, "Failed to get engine clock: %d\n", ret); >> + if (ret != -EPROBE_DEFER) >> + dev_err(dev, "Failed to get engine clock: %d\n", ret); > > This is only to print an error and I think that devm_clk_get will print a > warning if the clk is not found. I guess that you can just remove the dev_err > print logic, here and below. > I didn't follow all the paths, but at least devres_alloc in devm_clk_get isn't able to alloc the memory, it will silently return -ENOMEM. So I think it is OK to print an error message here. Regards, Matthias > In case there is an optional clock you could use devm_clk_get_optional, not sure > if there is any, though. > >> + >> return ret; >> } >> >> dpi->pixel_clk = devm_clk_get(dev, "pixel"); >> if (IS_ERR(dpi->pixel_clk)) { >> ret = PTR_ERR(dpi->pixel_clk); >> - dev_err(dev, "Failed to get pixel clock: %d\n", ret); >> + if (ret != -EPROBE_DEFER) >> + dev_err(dev, "Failed to get pixel clock: %d\n", ret); >> + > > ditto > >> return ret; >> } >> >> dpi->tvd_clk = devm_clk_get(dev, "pll"); >> if (IS_ERR(dpi->tvd_clk)) { >> ret = PTR_ERR(dpi->tvd_clk); >> - dev_err(dev, "Failed to get tvdpll clock: %d\n", ret); >> + if (ret != -EPROBE_DEFER) >> + dev_err(dev, "Failed to get tvdpll clock: %d\n", ret); >> + > > ditto > >> return ret; >> } >> >> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c >> index b765181223e6..6054e2b675f9 100644 >> --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c >> +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c >> @@ -558,7 +558,9 @@ static int mtk_ddp_probe(struct platform_device *pdev) >> >> ddp->clk = devm_clk_get(dev, NULL); >> if (IS_ERR(ddp->clk)) { >> - dev_err(dev, "Failed to get clock\n"); >> + if (PTR_ERR(ddp->clk) != -EPROBE_DEFER) >> + dev_err(dev, "Failed to get clock\n"); >> + > > ditto > >> return PTR_ERR(ddp->clk); >> } >> >> diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c >> index 4332563df952..66d5b0fdd678 100644 >> --- a/drivers/gpu/drm/mediatek/mtk_dsi.c >> +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c >> @@ -1110,14 +1110,18 @@ static int mtk_dsi_probe(struct platform_device *pdev) >> dsi->engine_clk = devm_clk_get(dev, "engine"); >> if (IS_ERR(dsi->engine_clk)) { >> ret = PTR_ERR(dsi->engine_clk); >> - dev_err(dev, "Failed to get engine clock: %d\n", ret); >> + if (ret != -EPROBE_DEFER) >> + dev_err(dev, "Failed to get engine clock: %d\n", ret); >> + > > ditto > >> return ret; >> } >> >> dsi->digital_clk = devm_clk_get(dev, "digital"); >> if (IS_ERR(dsi->digital_clk)) { >> ret = PTR_ERR(dsi->digital_clk); >> - dev_err(dev, "Failed to get digital clock: %d\n", ret); >> + if (ret != -EPROBE_DEFER) >> + dev_err(dev, "Failed to get digital clock: %d\n", ret); >> + > > ditto > >> return ret; >> } >> >> diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c >> index ce91b61364eb..62f9ca2308ee 100644 >> --- a/drivers/gpu/drm/mediatek/mtk_hdmi.c >> +++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c >> @@ -1447,7 +1447,9 @@ static int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi, >> >> ret = mtk_hdmi_get_all_clk(hdmi, np); >> if (ret) { >> - dev_err(dev, "Failed to get clocks: %d\n", ret); >> + if (ret != -EPROBE_DEFER) >> + dev_err(dev, "Failed to get clocks: %d\n", ret); >> + >> return ret; >> } >> >> From mboxrd@z Thu Jan 1 00:00:00 1970 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=-8.0 required=3.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED,DKIM_VALID,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 AD373C352A3 for ; Thu, 13 Feb 2020 18:58:36 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 7DC4C206CC for ; Thu, 13 Feb 2020 18:58:36 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="MiysbXjW"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="XrH+dwwB" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7DC4C206CC Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date: Message-ID:From:References:To:Subject:Reply-To:Content-ID:Content-Description :Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=RxexzhhalzW7b3cjsrgj/WRPjzmK8vPokbBDcjCLQDM=; b=MiysbXjWrYEBMJ G7faPggBktYa7RlvT3POWMzwsjGMFStHpEd61qn2UTXsfAeXOb03YRgIsYuf8kP55zYhxRfDPnOr0 3s3vzw2U3BuP3eN/t90PAxWjk8Osd6qpgf16NazNSyG08BUZ3+M3GPgj5nELTspucWOM/DqZMV2y7 uxDd448WlWfB0g+hQDHvrtVYeJXMeuj+k7AxU15b6QuGtJpYAf6IapjGYLFtVIB+GBZWw8Z7sJQ3f 9u1cMgkLJjH2yjSvlcZDgrz9vWt13I8qgZ+nk8wcp/A4Jrl4ZeOKcYi2rtxcDjrV6lvvox4pxrRVx i//3EWjkKxaJTDhU0rUg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1j2Jgy-000447-0t; Thu, 13 Feb 2020 18:58:28 +0000 Received: from mail-pj1-x1044.google.com ([2607:f8b0:4864:20::1044]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1j2Jgv-00043R-8m; Thu, 13 Feb 2020 18:58:27 +0000 Received: by mail-pj1-x1044.google.com with SMTP id n96so2773355pjc.3; Thu, 13 Feb 2020 10:58:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:cc:references:from:autocrypt:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=4sbfXgq71Lw3rV1MfbUqA//xkH8k/BQruTGRX8wE71Y=; b=XrH+dwwBkvkzUT773puDhJFzQk/18wegXBfiOuU57s/5ZyPyf5HoV5HFa2mIhDkmsD 6LQuJ2P6obUijyjHQdXP7wlwA2wgR7adMpcZE6V6u3nh6OVLy+HYHW5WNARYe8o3rzi8 VkNdho5h78lDFKlXn9bWeIq/gF13GBWqPRTDCztWcrE0nkYCLMuA8U9XN7pzSBXRA8T8 nDZ4I/5SqFsF0rvc5HTLAJmcwhBAAMljDXjKKFWfG8+AuIASLKEuS7pcPc92LpWClSNY 9gUyN44Yr2dPADIC6BTm1owpaQ0WvWTcKgOo5aW8JNq4dkVKKbVyBpQXnmo6JccOGY55 SMGg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:autocrypt :message-id:date:user-agent:mime-version:in-reply-to :content-language:content-transfer-encoding; bh=4sbfXgq71Lw3rV1MfbUqA//xkH8k/BQruTGRX8wE71Y=; b=A+fX55A0dyTiRl/B+Lqi+ntadAqqk2kfDwBmderA6YdwiQEI/I9dlo+Bm4tpusk2Zl gM8Fy0YB+MFYcpE2C99yKj8ZpXQW4CvcNr2suInqnGojnolTiDQpSZv+QHHhlAZ5Ovte AZemCFWyDZfx35fvWVPpmu++BzeVCqZrsJk1X9iHMj4QIuht4aadNu+NFkpRpL+OLCim /9KvM8Od55Y4RRiWkmsCrWeX5MbwwhguVG1p8MY2j6qX5H0sOk/gZJbXvY4PRCOOUPK3 aLoPu/fHGGvlIvF/EONGdzY9mWTcXD4FrHKzh690nLoGxJ3jUWM+qBntMV4Lk38n/RCL Y9xQ== X-Gm-Message-State: APjAAAVSm8gMvS89D+7ROAdy5LWAfqXoJenNSWTD5jDQcCanL07z7NeR rZ+gTYn3kh8YMk9clOmZrwA= X-Google-Smtp-Source: APXvYqxQOJlqjdnHOmVbxzWipaSuMhxCrAsPSA51vXQledp5uG2W8ppDo60OIaUE0ZM/csyt6hv4HA== X-Received: by 2002:a17:90a:1e63:: with SMTP id w90mr6688896pjw.36.1581620304545; Thu, 13 Feb 2020 10:58:24 -0800 (PST) Received: from ziggy.stardust ([37.223.145.31]) by smtp.gmail.com with ESMTPSA id b12sm4099080pfr.26.2020.02.13.10.58.18 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 13 Feb 2020 10:58:23 -0800 (PST) Subject: Re: [resend PATCH v6 04/12] drm: mediatek: Omit warning on probe defers To: Enric Balletbo i Serra , matthias.bgg@kernel.org, robh+dt@kernel.org, mark.rutland@arm.com, ck.hu@mediatek.com, p.zabel@pengutronix.de, airlied@linux.ie, mturquette@baylibre.com, sboyd@kernel.org, ulrich.hecht+renesas@gmail.com, laurent.pinchart@ideasonboard.com References: <20191207224740.24536-1-matthias.bgg@kernel.org> <20191207224740.24536-5-matthias.bgg@kernel.org> <48f9ec0c-1f1e-5a6c-283b-7efc4ce1bd5e@collabora.com> From: Matthias Brugger Autocrypt: addr=matthias.bgg@gmail.com; prefer-encrypt=mutual; keydata= mQINBFP1zgUBEAC21D6hk7//0kOmsUrE3eZ55kjc9DmFPKIz6l4NggqwQjBNRHIMh04BbCMY fL3eT7ZsYV5nur7zctmJ+vbszoOASXUpfq8M+S5hU2w7sBaVk5rpH9yW8CUWz2+ZpQXPJcFa OhLZuSKB1F5JcvLbETRjNzNU7B3TdS2+zkgQQdEyt7Ij2HXGLJ2w+yG2GuR9/iyCJRf10Okq gTh//XESJZ8S6KlOWbLXRE+yfkKDXQx2Jr1XuVvM3zPqH5FMg8reRVFsQ+vI0b+OlyekT/Xe 0Hwvqkev95GG6x7yseJwI+2ydDH6M5O7fPKFW5mzAdDE2g/K9B4e2tYK6/rA7Fq4cqiAw1+u EgO44+eFgv082xtBez5WNkGn18vtw0LW3ESmKh19u6kEGoi0WZwslCNaGFrS4M7OH+aOJeqK fx5dIv2CEbxc6xnHY7dwkcHikTA4QdbdFeUSuj4YhIZ+0QlDVtS1QEXyvZbZky7ur9rHkZvP ZqlUsLJ2nOqsmahMTIQ8Mgx9SLEShWqD4kOF4zNfPJsgEMB49KbS2o9jxbGB+JKupjNddfxZ HlH1KF8QwCMZEYaTNogrVazuEJzx6JdRpR3sFda/0x5qjTadwIW6Cl9tkqe2h391dOGX1eOA 1ntn9O/39KqSrWNGvm+1raHK+Ev1yPtn0Wxn+0oy1tl67TxUjQARAQABtClNYXR0aGlhcyBC cnVnZ2VyIDxtYXR0aGlhcy5iZ2dAZ21haWwuY29tPokCUgQTAQIAPAIbAwYLCQgHAwIGFQgC CQoLBBYCAwECHgECF4AWIQTmuZIYwPLDJRwsOhfZFAuyVhMC8QUCWt3scQIZAQAKCRDZFAuy VhMC8WzRD/4onkC+gCxG+dvui5SXCJ7bGLCu0xVtiGC673Kz5Aq3heITsERHBV0BqqctOEBy ZozQQe2Hindu9lasOmwfH8+vfTK+2teCgWesoE3g3XKbrOCB4RSrQmXGC3JYx6rcvMlLV/Ch YMRR3qv04BOchnjkGtvm9aZWH52/6XfChyh7XYndTe5F2bqeTjt+kF/ql+xMc4E6pniqIfkv c0wsH4CkBHqoZl9w5e/b9MspTqsU9NszTEOFhy7p2CYw6JEa/vmzR6YDzGs8AihieIXDOfpT DUr0YUlDrwDSrlm/2MjNIPTmSGHH94ScOqu/XmGW/0q1iar/Yr0leomUOeeEzCqQtunqShtE 4Mn2uEixFL+9jiVtMjujr6mphznwpEqObPCZ3IcWqOFEz77rSL+oqFiEA03A2WBDlMm++Sve 9jpkJBLosJRhAYmQ6ey6MFO6Krylw1LXcq5z1XQQavtFRgZoruHZ3XlhT5wcfLJtAqrtfCe0 aQ0kJW+4zj9/So0uxJDAtGuOpDYnmK26dgFN0tAhVuNInEVhtErtLJHeJzFKJzNyQ4GlCaLw jKcwWcqDJcrx9R7LsCu4l2XpKiyxY6fO4O8DnSleVll9NPfAZFZvf8AIy3EQ8BokUsiuUYHz wUo6pclk55PZRaAsHDX/fNr24uC6Eh5oNQ+v4Pax/gtyybkCDQRd1TkHARAAt1BBpmaH+0o+ deSyJotkrpzZZkbSs5ygBniCUGQqXpWqgrc7Uo/qtxOFL91uOsdX1/vsnJO9FyUv3ZNI2Thw NVGCTvCP9E6u4gSSuxEfVyVThCSPvRJHCG2rC+EMAOUMpxokcX9M2b7bBEbcSjeP/E4KTa39 q+JJSeWliaghUfMXXdimT/uxpP5Aa2/D/vcUUGHLelf9TyihHyBohdyNzeEF3v9rq7kdqamZ Ihb+WYrDio/SzqTd1g+wnPJbnu45zkoQrYtBu58n7u8oo+pUummOuTR2b6dcsiB9zJaiVRIg OqL8p3K2fnE8Ewwn6IKHnLTyx5T/r2Z0ikyOeijDumZ0VOPPLTnwmb780Nym3LW1OUMieKtn I3v5GzZyS83NontvsiRd4oPGQDRBT39jAyBr8vDRl/3RpLKuwWBFTs1bYMLu0sYarwowOz8+ Mn+CRFUvRrXxociw5n0P1PgJ7vQey4muCZ4VynH1SeVb3KZ59zcQHksKtpzz2OKhtX8FCeVO mHW9u4x8s/oUVMZCXEq9QrmVhdIvJnBCqq+1bh5UC2Rfjm/vLHwt5hes0HDstbCzLyiA0LTI ADdP77RN2OJbzBkCuWE21YCTLtc8kTQlP+G8m23K5w8k2jleCSKumprCr/5qPyNlkie1HC4E GEAfdfN+uLsFw6qPzSAsmukAEQEAAYkEbAQYAQgAIBYhBOa5khjA8sMlHCw6F9kUC7JWEwLx BQJd1TkHAhsCAkAJENkUC7JWEwLxwXQgBBkBCAAdFiEEUdvKHhzqrUYPB/u8L21+TfbCqH4F Al3VOQcACgkQL21+TfbCqH79RRAAtlb6oAL9y8JM5R1T3v02THFip8OMh7YvEJCnezle9Apq C6Vx26RSQjBV1JwSBv6BpgDBNXarTGCPXcre6KGfX8u1r6hnXAHZNHP7bFGJQiBv5RqGFf45 OhOhbjXCyHc0jrnNjY4M2jTkUC+KIuOzasvggU975nolC8MiaBqfgMB2ab5W+xEiTcNCOg3+ 1SRs5/ZkQ0iyyba2FihSeSw3jTUjPsJBF15xndexoc9jpi0RKuvPiJ191Xa3pzNntIxpsxqc ZkS1HSqPI63/urNezeSejBzW0Xz2Bi/b/5R9Hpxp1AEC3OzabOBATY/1Bmh2eAVK3xpN2Fe1 Zj7HrTgmzBmSefMcSXN0oKQWEI5tHtBbw5XUj0Nw4hMhUtiMfE2HAqcaozsL34sEzi3eethZ IvKnIOTmllsDFMbOBa8oUSoaNg7GzkWSKJ59a9qPJkoj/hJqqeyEXF+WTCUv6FcA8BtBJmVf FppFzLFM/QzF5fgDZmfjc9czjRJHAGHRMMnQlW88iWamjYVye57srNq9pUql6A4lITF7w00B 5PXINFk0lMcNUdkWipu24H6rJhOO6xSP4n6OrCCcGsXsAR5oH3d4TzA9iPYrmfXAXD+hTp82 s+7cEbTsCJ9MMq09/GTCeroTQiqkp50UaR0AvhuPdfjJwVYZfmMS1+5IXA/KY6DbGBAAs5ti AK0ieoZlCv/YxOSMCz10EQWMymD2gghjxojf4iwB2MbGp8UN4+++oKLHz+2j+IL08rd2ioFN YCJBFDVoDRpF/UnrQ8LsH55UZBHuu5XyMkdJzMaHRVQc1rzfluqx+0a/CQ6Cb2q7J2d45nYx 8jMSCsGj1/iU/bKjMBtuh91hsbdWCxMRW0JnGXxcEUklbhA5uGj3W4VYCfTQxwK6JiVt7JYp bX7JdRKIyq3iMDcsTXi7dhhwqsttQRwbBci0UdFGAG4jT5p6u65MMDVTXEgYfZy0674P06qf uSyff73ivwvLR025akzJui8MLU23rWRywXOyTINz8nsPFT4ZSGT1hr5VnIBs/esk/2yFmVoc FAxs1aBO29iHmjJ8D84EJvOcKfh9RKeW8yeBNKXHrcOV4MbMOts9+vpJgBFDnJeLFQPtTHuI kQXT4+yLDvwOVAW9MPLfcHlczq/A/nhGVaG+RKWDfJWNSu/mbhqUQt4J+RFpfx1gmL3yV8NN 7JXABPi5M97PeKdx6qc/c1o3oEHH8iBkWZIYMS9fd6rtAqV3+KH5Ors7tQVtwUIDYEvttmeO ifvpW6U/4au4zBYfvvXagbyXJhG9mZvz+jN1cr0/G2ZC93IbjFFwUmHtXS4ttQ4pbrX6fjTe lq5vmROjiWirpZGm+WA3Vx9QRjqfMdS5Ag0EXdU5SAEQAJu/Jk58uOB8HSGDSuGUB+lOacXC bVOOSywZkq+Ayv+3q/XIabyeaYMwhriNuXHjUxIORQoWHIHzTCqsAgHpJFfSHoM4ulCuOPFt XjqfEHkA0urB6S0jnvJ6ev875lL4Yi6JJO7WQYRs/l7OakJiT13GoOwDIn7hHH/PGUqQoZlA d1n5SVdg6cRd7EqJ+RMNoud7ply6nUSCRMNWbNqbgyWjKsD98CMjHa33SB9WQQSQyFlf+dz+ dpirWENCoY3vvwKJaSpfeqKYuqPVSxnqpKXqqyjNnG9W46OWZp+JV5ejbyUR/2U+vMwbTilL cIUpTgdmxPCA6J0GQjmKNsNKKYgIMn6W4o/LoiO7IgROm1sdn0KbJouCa2QZoQ0+p/7mJXhl tA0XGZhNlI3npD1lLpjdd42lWboU4VeuUp4VNOXIWU/L1NZwEwMIqzFXl4HmRi8MYbHHbpN5 zW+VUrFfeRDPyjrYpax+vWS+l658PPH+sWmhj3VclIoAU1nP33FrsNfp5BiQzao30rwe4ntd eEdPENvGmLfCwiUV2DNVrmJaE3CIUUl1KIRoB5oe7rJeOvf0WuQhWjIU98glXIrh3WYd7vsf jtbEXDoWhVtwZMShMvp7ccPCe2c4YBToIthxpDhoDPUdNwOssHNLD8G4JIBexwi4q7IT9lP6 sVstwvA5ABEBAAGJAjYEGAEIACAWIQTmuZIYwPLDJRwsOhfZFAuyVhMC8QUCXdU5SAIbDAAK CRDZFAuyVhMC8bXXD/4xyfbyPGnRYtR0KFlCgkG2XWeWSR2shSiM1PZGRPxR888zA2WBYHAk 7NpJlFchpaErV6WdFrXQjDAd9YwaEHucfS7SAhxIqdIqzV5vNFrMjwhB1N8MfdUJDpgyX7Zu k/Phd5aoZXNwsCRqaD2OwFZXr81zSXwE2UdPmIfTYTjeVsOAI7GZ7akCsRPK64ni0XfoXue2 XUSrUUTRimTkuMHrTYaHY3544a+GduQQLLA+avseLmjvKHxsU4zna0p0Yb4czwoJj+wSkVGQ NMDbxcY26CMPK204jhRm9RG687qq6691hbiuAtWABeAsl1AS+mdS7aP/4uOM4kFCvXYgIHxP /BoVz9CZTMEVAZVzbRKyYCLUf1wLhcHzugTiONz9fWMBLLskKvq7m1tlr61mNgY9nVwwClMU uE7i1H9r/2/UXLd+pY82zcXhFrfmKuCDmOkB5xPsOMVQJH8I0/lbqfLAqfsxSb/X1VKaP243 jzi+DzD9cvj2K6eD5j5kcKJJQactXqfJvF1Eb+OnxlB1BCLE8D1rNkPO5O742Mq3MgDmq19l +abzEL6QDAAxn9md8KwrA3RtucNh87cHlDXfUBKa7SRvBjTczDg+HEPNk2u3hrz1j3l2rliQ y1UfYx7Vk/TrdwUIJgKS8QAr8Lw9WuvY2hSqL9vEjx8VAkPWNWPwrQ== Message-ID: <64cca307-0045-7f82-9916-fa45095be2c2@gmail.com> Date: Thu, 13 Feb 2020 19:58:16 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 MIME-Version: 1.0 In-Reply-To: <48f9ec0c-1f1e-5a6c-283b-7efc4ce1bd5e@collabora.com> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200213_105825_516309_4F6A9C02 X-CRM114-Status: GOOD ( 21.28 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, rdunlap@infradead.org, frank-w@public-files.de, sean.wang@mediatek.com, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, sean.wang@kernel.org, wens@csie.org, drinkcat@chromium.org, linux-mediatek@lists.infradead.org, mbrugger@suse.com, hsinyi@chromium.org, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org On 09/12/2019 10:39, Enric Balletbo i Serra wrote: > Hi Matthias, > > On 7/12/19 23:47, matthias.bgg@kernel.org wrote: >> From: Matthias Brugger >> >> It can happen that the mmsys clock drivers aren't probed before the >> platform driver gets invoked. The platform driver used to print a warning >> that the driver failed to get the clocks. Omit this error on >> the defered probe path. >> >> Signed-off-by: Matthias Brugger >> --- >> drivers/gpu/drm/mediatek/mtk_disp_color.c | 5 ++++- >> drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 5 ++++- >> drivers/gpu/drm/mediatek/mtk_disp_rdma.c | 5 ++++- >> drivers/gpu/drm/mediatek/mtk_dpi.c | 12 +++++++++--- >> drivers/gpu/drm/mediatek/mtk_drm_ddp.c | 4 +++- >> drivers/gpu/drm/mediatek/mtk_dsi.c | 8 ++++++-- >> drivers/gpu/drm/mediatek/mtk_hdmi.c | 4 +++- >> 7 files changed, 33 insertions(+), 10 deletions(-) >> >> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_color.c b/drivers/gpu/drm/mediatek/mtk_disp_color.c >> index 59de2a46aa49..8f0fc96ef7bc 100644 >> --- a/drivers/gpu/drm/mediatek/mtk_disp_color.c >> +++ b/drivers/gpu/drm/mediatek/mtk_disp_color.c >> @@ -118,7 +118,10 @@ static int mtk_disp_color_probe(struct platform_device *pdev) >> ret = mtk_ddp_comp_init(dev, dev->of_node, &priv->ddp_comp, comp_id, >> &mtk_disp_color_funcs); >> if (ret) { >> - dev_err(dev, "Failed to initialize component: %d\n", ret); >> + if (ret != -EPROBE_DEFER) >> + dev_err(dev, "Failed to initialize component: %d\n", >> + ret); >> + >> return ret; >> } >> >> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c >> index 21851756c579..7487b0182c05 100644 >> --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c >> +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c >> @@ -285,7 +285,10 @@ static int mtk_disp_ovl_probe(struct platform_device *pdev) >> ret = mtk_ddp_comp_init(dev, dev->of_node, &priv->ddp_comp, comp_id, >> &mtk_disp_ovl_funcs); >> if (ret) { >> - dev_err(dev, "Failed to initialize component: %d\n", ret); >> + if (ret != -EPROBE_DEFER) >> + dev_err(dev, "Failed to initialize component: %d\n", >> + ret); >> + >> return ret; >> } >> >> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c >> index 405afef31407..835ea8f8dab9 100644 >> --- a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c >> +++ b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c >> @@ -287,7 +287,10 @@ static int mtk_disp_rdma_probe(struct platform_device *pdev) >> ret = mtk_ddp_comp_init(dev, dev->of_node, &priv->ddp_comp, comp_id, >> &mtk_disp_rdma_funcs); >> if (ret) { >> - dev_err(dev, "Failed to initialize component: %d\n", ret); >> + if (ret != -EPROBE_DEFER) >> + dev_err(dev, "Failed to initialize component: %d\n", >> + ret); >> + >> return ret; >> } >> >> diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c >> index be6d95c5ff25..9ed32470ad02 100644 >> --- a/drivers/gpu/drm/mediatek/mtk_dpi.c >> +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c >> @@ -700,21 +700,27 @@ static int mtk_dpi_probe(struct platform_device *pdev) >> dpi->engine_clk = devm_clk_get(dev, "engine"); >> if (IS_ERR(dpi->engine_clk)) { >> ret = PTR_ERR(dpi->engine_clk); >> - dev_err(dev, "Failed to get engine clock: %d\n", ret); >> + if (ret != -EPROBE_DEFER) >> + dev_err(dev, "Failed to get engine clock: %d\n", ret); > > This is only to print an error and I think that devm_clk_get will print a > warning if the clk is not found. I guess that you can just remove the dev_err > print logic, here and below. > I didn't follow all the paths, but at least devres_alloc in devm_clk_get isn't able to alloc the memory, it will silently return -ENOMEM. So I think it is OK to print an error message here. Regards, Matthias > In case there is an optional clock you could use devm_clk_get_optional, not sure > if there is any, though. > >> + >> return ret; >> } >> >> dpi->pixel_clk = devm_clk_get(dev, "pixel"); >> if (IS_ERR(dpi->pixel_clk)) { >> ret = PTR_ERR(dpi->pixel_clk); >> - dev_err(dev, "Failed to get pixel clock: %d\n", ret); >> + if (ret != -EPROBE_DEFER) >> + dev_err(dev, "Failed to get pixel clock: %d\n", ret); >> + > > ditto > >> return ret; >> } >> >> dpi->tvd_clk = devm_clk_get(dev, "pll"); >> if (IS_ERR(dpi->tvd_clk)) { >> ret = PTR_ERR(dpi->tvd_clk); >> - dev_err(dev, "Failed to get tvdpll clock: %d\n", ret); >> + if (ret != -EPROBE_DEFER) >> + dev_err(dev, "Failed to get tvdpll clock: %d\n", ret); >> + > > ditto > >> return ret; >> } >> >> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c >> index b765181223e6..6054e2b675f9 100644 >> --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c >> +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c >> @@ -558,7 +558,9 @@ static int mtk_ddp_probe(struct platform_device *pdev) >> >> ddp->clk = devm_clk_get(dev, NULL); >> if (IS_ERR(ddp->clk)) { >> - dev_err(dev, "Failed to get clock\n"); >> + if (PTR_ERR(ddp->clk) != -EPROBE_DEFER) >> + dev_err(dev, "Failed to get clock\n"); >> + > > ditto > >> return PTR_ERR(ddp->clk); >> } >> >> diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c >> index 4332563df952..66d5b0fdd678 100644 >> --- a/drivers/gpu/drm/mediatek/mtk_dsi.c >> +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c >> @@ -1110,14 +1110,18 @@ static int mtk_dsi_probe(struct platform_device *pdev) >> dsi->engine_clk = devm_clk_get(dev, "engine"); >> if (IS_ERR(dsi->engine_clk)) { >> ret = PTR_ERR(dsi->engine_clk); >> - dev_err(dev, "Failed to get engine clock: %d\n", ret); >> + if (ret != -EPROBE_DEFER) >> + dev_err(dev, "Failed to get engine clock: %d\n", ret); >> + > > ditto > >> return ret; >> } >> >> dsi->digital_clk = devm_clk_get(dev, "digital"); >> if (IS_ERR(dsi->digital_clk)) { >> ret = PTR_ERR(dsi->digital_clk); >> - dev_err(dev, "Failed to get digital clock: %d\n", ret); >> + if (ret != -EPROBE_DEFER) >> + dev_err(dev, "Failed to get digital clock: %d\n", ret); >> + > > ditto > >> return ret; >> } >> >> diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c >> index ce91b61364eb..62f9ca2308ee 100644 >> --- a/drivers/gpu/drm/mediatek/mtk_hdmi.c >> +++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c >> @@ -1447,7 +1447,9 @@ static int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi, >> >> ret = mtk_hdmi_get_all_clk(hdmi, np); >> if (ret) { >> - dev_err(dev, "Failed to get clocks: %d\n", ret); >> + if (ret != -EPROBE_DEFER) >> + dev_err(dev, "Failed to get clocks: %d\n", ret); >> + >> return ret; >> } >> >> _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek From mboxrd@z Thu Jan 1 00:00:00 1970 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=-8.0 required=3.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED,DKIM_VALID,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 68DA4C352A3 for ; Thu, 13 Feb 2020 18:58:39 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 3B264206CC for ; Thu, 13 Feb 2020 18:58:39 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="haY06MIq"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="XrH+dwwB" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3B264206CC Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date: Message-ID:From:References:To:Subject:Reply-To:Content-ID:Content-Description :Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=l/A3Dq/T/jlUVXe48ozf4nNTPjfPIMypENUUW+7t0ys=; b=haY06MIqrRg/7B 6f7EAjjwuZkCDVUXYZRZlZiAetQA/LneiLRYvquAptViCJokuQFzUq4RnEOePshJ89ux7MT5mNO9G DtGL7CiNktPap8gE5jaYRQO5Pwv+BXaEhixa8tCjiX9TUmztAyoLXkhPrxAdMY4GwRXAZaIxBrFMx 9QbH1WJCvZ5GCR7yZEioC5gSpdVa7ld6xiRHfQQzOndGAWGs62lnM7EsLvy0KR++q/HNcgUgmgaop 5strBF0LW09GP2b35WcNLW/Im7QoK6IXl/p1JEXOR4l5BFkb4loXkJ3w6pXVnoHLTJr1Uc7IUsNtn meGIN0pXHwJKHqrOnAxw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1j2Jgz-000451-G9; Thu, 13 Feb 2020 18:58:29 +0000 Received: from mail-pj1-x1044.google.com ([2607:f8b0:4864:20::1044]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1j2Jgv-00043R-8m; Thu, 13 Feb 2020 18:58:27 +0000 Received: by mail-pj1-x1044.google.com with SMTP id n96so2773355pjc.3; Thu, 13 Feb 2020 10:58:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:cc:references:from:autocrypt:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=4sbfXgq71Lw3rV1MfbUqA//xkH8k/BQruTGRX8wE71Y=; b=XrH+dwwBkvkzUT773puDhJFzQk/18wegXBfiOuU57s/5ZyPyf5HoV5HFa2mIhDkmsD 6LQuJ2P6obUijyjHQdXP7wlwA2wgR7adMpcZE6V6u3nh6OVLy+HYHW5WNARYe8o3rzi8 VkNdho5h78lDFKlXn9bWeIq/gF13GBWqPRTDCztWcrE0nkYCLMuA8U9XN7pzSBXRA8T8 nDZ4I/5SqFsF0rvc5HTLAJmcwhBAAMljDXjKKFWfG8+AuIASLKEuS7pcPc92LpWClSNY 9gUyN44Yr2dPADIC6BTm1owpaQ0WvWTcKgOo5aW8JNq4dkVKKbVyBpQXnmo6JccOGY55 SMGg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:autocrypt :message-id:date:user-agent:mime-version:in-reply-to :content-language:content-transfer-encoding; bh=4sbfXgq71Lw3rV1MfbUqA//xkH8k/BQruTGRX8wE71Y=; b=A+fX55A0dyTiRl/B+Lqi+ntadAqqk2kfDwBmderA6YdwiQEI/I9dlo+Bm4tpusk2Zl gM8Fy0YB+MFYcpE2C99yKj8ZpXQW4CvcNr2suInqnGojnolTiDQpSZv+QHHhlAZ5Ovte AZemCFWyDZfx35fvWVPpmu++BzeVCqZrsJk1X9iHMj4QIuht4aadNu+NFkpRpL+OLCim /9KvM8Od55Y4RRiWkmsCrWeX5MbwwhguVG1p8MY2j6qX5H0sOk/gZJbXvY4PRCOOUPK3 aLoPu/fHGGvlIvF/EONGdzY9mWTcXD4FrHKzh690nLoGxJ3jUWM+qBntMV4Lk38n/RCL Y9xQ== X-Gm-Message-State: APjAAAVSm8gMvS89D+7ROAdy5LWAfqXoJenNSWTD5jDQcCanL07z7NeR rZ+gTYn3kh8YMk9clOmZrwA= X-Google-Smtp-Source: APXvYqxQOJlqjdnHOmVbxzWipaSuMhxCrAsPSA51vXQledp5uG2W8ppDo60OIaUE0ZM/csyt6hv4HA== X-Received: by 2002:a17:90a:1e63:: with SMTP id w90mr6688896pjw.36.1581620304545; Thu, 13 Feb 2020 10:58:24 -0800 (PST) Received: from ziggy.stardust ([37.223.145.31]) by smtp.gmail.com with ESMTPSA id b12sm4099080pfr.26.2020.02.13.10.58.18 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 13 Feb 2020 10:58:23 -0800 (PST) Subject: Re: [resend PATCH v6 04/12] drm: mediatek: Omit warning on probe defers To: Enric Balletbo i Serra , matthias.bgg@kernel.org, robh+dt@kernel.org, mark.rutland@arm.com, ck.hu@mediatek.com, p.zabel@pengutronix.de, airlied@linux.ie, mturquette@baylibre.com, sboyd@kernel.org, ulrich.hecht+renesas@gmail.com, laurent.pinchart@ideasonboard.com References: <20191207224740.24536-1-matthias.bgg@kernel.org> <20191207224740.24536-5-matthias.bgg@kernel.org> <48f9ec0c-1f1e-5a6c-283b-7efc4ce1bd5e@collabora.com> From: Matthias Brugger Autocrypt: addr=matthias.bgg@gmail.com; prefer-encrypt=mutual; keydata= mQINBFP1zgUBEAC21D6hk7//0kOmsUrE3eZ55kjc9DmFPKIz6l4NggqwQjBNRHIMh04BbCMY fL3eT7ZsYV5nur7zctmJ+vbszoOASXUpfq8M+S5hU2w7sBaVk5rpH9yW8CUWz2+ZpQXPJcFa OhLZuSKB1F5JcvLbETRjNzNU7B3TdS2+zkgQQdEyt7Ij2HXGLJ2w+yG2GuR9/iyCJRf10Okq gTh//XESJZ8S6KlOWbLXRE+yfkKDXQx2Jr1XuVvM3zPqH5FMg8reRVFsQ+vI0b+OlyekT/Xe 0Hwvqkev95GG6x7yseJwI+2ydDH6M5O7fPKFW5mzAdDE2g/K9B4e2tYK6/rA7Fq4cqiAw1+u EgO44+eFgv082xtBez5WNkGn18vtw0LW3ESmKh19u6kEGoi0WZwslCNaGFrS4M7OH+aOJeqK fx5dIv2CEbxc6xnHY7dwkcHikTA4QdbdFeUSuj4YhIZ+0QlDVtS1QEXyvZbZky7ur9rHkZvP ZqlUsLJ2nOqsmahMTIQ8Mgx9SLEShWqD4kOF4zNfPJsgEMB49KbS2o9jxbGB+JKupjNddfxZ HlH1KF8QwCMZEYaTNogrVazuEJzx6JdRpR3sFda/0x5qjTadwIW6Cl9tkqe2h391dOGX1eOA 1ntn9O/39KqSrWNGvm+1raHK+Ev1yPtn0Wxn+0oy1tl67TxUjQARAQABtClNYXR0aGlhcyBC cnVnZ2VyIDxtYXR0aGlhcy5iZ2dAZ21haWwuY29tPokCUgQTAQIAPAIbAwYLCQgHAwIGFQgC CQoLBBYCAwECHgECF4AWIQTmuZIYwPLDJRwsOhfZFAuyVhMC8QUCWt3scQIZAQAKCRDZFAuy VhMC8WzRD/4onkC+gCxG+dvui5SXCJ7bGLCu0xVtiGC673Kz5Aq3heITsERHBV0BqqctOEBy ZozQQe2Hindu9lasOmwfH8+vfTK+2teCgWesoE3g3XKbrOCB4RSrQmXGC3JYx6rcvMlLV/Ch YMRR3qv04BOchnjkGtvm9aZWH52/6XfChyh7XYndTe5F2bqeTjt+kF/ql+xMc4E6pniqIfkv c0wsH4CkBHqoZl9w5e/b9MspTqsU9NszTEOFhy7p2CYw6JEa/vmzR6YDzGs8AihieIXDOfpT DUr0YUlDrwDSrlm/2MjNIPTmSGHH94ScOqu/XmGW/0q1iar/Yr0leomUOeeEzCqQtunqShtE 4Mn2uEixFL+9jiVtMjujr6mphznwpEqObPCZ3IcWqOFEz77rSL+oqFiEA03A2WBDlMm++Sve 9jpkJBLosJRhAYmQ6ey6MFO6Krylw1LXcq5z1XQQavtFRgZoruHZ3XlhT5wcfLJtAqrtfCe0 aQ0kJW+4zj9/So0uxJDAtGuOpDYnmK26dgFN0tAhVuNInEVhtErtLJHeJzFKJzNyQ4GlCaLw jKcwWcqDJcrx9R7LsCu4l2XpKiyxY6fO4O8DnSleVll9NPfAZFZvf8AIy3EQ8BokUsiuUYHz wUo6pclk55PZRaAsHDX/fNr24uC6Eh5oNQ+v4Pax/gtyybkCDQRd1TkHARAAt1BBpmaH+0o+ deSyJotkrpzZZkbSs5ygBniCUGQqXpWqgrc7Uo/qtxOFL91uOsdX1/vsnJO9FyUv3ZNI2Thw NVGCTvCP9E6u4gSSuxEfVyVThCSPvRJHCG2rC+EMAOUMpxokcX9M2b7bBEbcSjeP/E4KTa39 q+JJSeWliaghUfMXXdimT/uxpP5Aa2/D/vcUUGHLelf9TyihHyBohdyNzeEF3v9rq7kdqamZ Ihb+WYrDio/SzqTd1g+wnPJbnu45zkoQrYtBu58n7u8oo+pUummOuTR2b6dcsiB9zJaiVRIg OqL8p3K2fnE8Ewwn6IKHnLTyx5T/r2Z0ikyOeijDumZ0VOPPLTnwmb780Nym3LW1OUMieKtn I3v5GzZyS83NontvsiRd4oPGQDRBT39jAyBr8vDRl/3RpLKuwWBFTs1bYMLu0sYarwowOz8+ Mn+CRFUvRrXxociw5n0P1PgJ7vQey4muCZ4VynH1SeVb3KZ59zcQHksKtpzz2OKhtX8FCeVO mHW9u4x8s/oUVMZCXEq9QrmVhdIvJnBCqq+1bh5UC2Rfjm/vLHwt5hes0HDstbCzLyiA0LTI ADdP77RN2OJbzBkCuWE21YCTLtc8kTQlP+G8m23K5w8k2jleCSKumprCr/5qPyNlkie1HC4E GEAfdfN+uLsFw6qPzSAsmukAEQEAAYkEbAQYAQgAIBYhBOa5khjA8sMlHCw6F9kUC7JWEwLx BQJd1TkHAhsCAkAJENkUC7JWEwLxwXQgBBkBCAAdFiEEUdvKHhzqrUYPB/u8L21+TfbCqH4F Al3VOQcACgkQL21+TfbCqH79RRAAtlb6oAL9y8JM5R1T3v02THFip8OMh7YvEJCnezle9Apq C6Vx26RSQjBV1JwSBv6BpgDBNXarTGCPXcre6KGfX8u1r6hnXAHZNHP7bFGJQiBv5RqGFf45 OhOhbjXCyHc0jrnNjY4M2jTkUC+KIuOzasvggU975nolC8MiaBqfgMB2ab5W+xEiTcNCOg3+ 1SRs5/ZkQ0iyyba2FihSeSw3jTUjPsJBF15xndexoc9jpi0RKuvPiJ191Xa3pzNntIxpsxqc ZkS1HSqPI63/urNezeSejBzW0Xz2Bi/b/5R9Hpxp1AEC3OzabOBATY/1Bmh2eAVK3xpN2Fe1 Zj7HrTgmzBmSefMcSXN0oKQWEI5tHtBbw5XUj0Nw4hMhUtiMfE2HAqcaozsL34sEzi3eethZ IvKnIOTmllsDFMbOBa8oUSoaNg7GzkWSKJ59a9qPJkoj/hJqqeyEXF+WTCUv6FcA8BtBJmVf FppFzLFM/QzF5fgDZmfjc9czjRJHAGHRMMnQlW88iWamjYVye57srNq9pUql6A4lITF7w00B 5PXINFk0lMcNUdkWipu24H6rJhOO6xSP4n6OrCCcGsXsAR5oH3d4TzA9iPYrmfXAXD+hTp82 s+7cEbTsCJ9MMq09/GTCeroTQiqkp50UaR0AvhuPdfjJwVYZfmMS1+5IXA/KY6DbGBAAs5ti AK0ieoZlCv/YxOSMCz10EQWMymD2gghjxojf4iwB2MbGp8UN4+++oKLHz+2j+IL08rd2ioFN YCJBFDVoDRpF/UnrQ8LsH55UZBHuu5XyMkdJzMaHRVQc1rzfluqx+0a/CQ6Cb2q7J2d45nYx 8jMSCsGj1/iU/bKjMBtuh91hsbdWCxMRW0JnGXxcEUklbhA5uGj3W4VYCfTQxwK6JiVt7JYp bX7JdRKIyq3iMDcsTXi7dhhwqsttQRwbBci0UdFGAG4jT5p6u65MMDVTXEgYfZy0674P06qf uSyff73ivwvLR025akzJui8MLU23rWRywXOyTINz8nsPFT4ZSGT1hr5VnIBs/esk/2yFmVoc FAxs1aBO29iHmjJ8D84EJvOcKfh9RKeW8yeBNKXHrcOV4MbMOts9+vpJgBFDnJeLFQPtTHuI kQXT4+yLDvwOVAW9MPLfcHlczq/A/nhGVaG+RKWDfJWNSu/mbhqUQt4J+RFpfx1gmL3yV8NN 7JXABPi5M97PeKdx6qc/c1o3oEHH8iBkWZIYMS9fd6rtAqV3+KH5Ors7tQVtwUIDYEvttmeO ifvpW6U/4au4zBYfvvXagbyXJhG9mZvz+jN1cr0/G2ZC93IbjFFwUmHtXS4ttQ4pbrX6fjTe lq5vmROjiWirpZGm+WA3Vx9QRjqfMdS5Ag0EXdU5SAEQAJu/Jk58uOB8HSGDSuGUB+lOacXC bVOOSywZkq+Ayv+3q/XIabyeaYMwhriNuXHjUxIORQoWHIHzTCqsAgHpJFfSHoM4ulCuOPFt XjqfEHkA0urB6S0jnvJ6ev875lL4Yi6JJO7WQYRs/l7OakJiT13GoOwDIn7hHH/PGUqQoZlA d1n5SVdg6cRd7EqJ+RMNoud7ply6nUSCRMNWbNqbgyWjKsD98CMjHa33SB9WQQSQyFlf+dz+ dpirWENCoY3vvwKJaSpfeqKYuqPVSxnqpKXqqyjNnG9W46OWZp+JV5ejbyUR/2U+vMwbTilL cIUpTgdmxPCA6J0GQjmKNsNKKYgIMn6W4o/LoiO7IgROm1sdn0KbJouCa2QZoQ0+p/7mJXhl tA0XGZhNlI3npD1lLpjdd42lWboU4VeuUp4VNOXIWU/L1NZwEwMIqzFXl4HmRi8MYbHHbpN5 zW+VUrFfeRDPyjrYpax+vWS+l658PPH+sWmhj3VclIoAU1nP33FrsNfp5BiQzao30rwe4ntd eEdPENvGmLfCwiUV2DNVrmJaE3CIUUl1KIRoB5oe7rJeOvf0WuQhWjIU98glXIrh3WYd7vsf jtbEXDoWhVtwZMShMvp7ccPCe2c4YBToIthxpDhoDPUdNwOssHNLD8G4JIBexwi4q7IT9lP6 sVstwvA5ABEBAAGJAjYEGAEIACAWIQTmuZIYwPLDJRwsOhfZFAuyVhMC8QUCXdU5SAIbDAAK CRDZFAuyVhMC8bXXD/4xyfbyPGnRYtR0KFlCgkG2XWeWSR2shSiM1PZGRPxR888zA2WBYHAk 7NpJlFchpaErV6WdFrXQjDAd9YwaEHucfS7SAhxIqdIqzV5vNFrMjwhB1N8MfdUJDpgyX7Zu k/Phd5aoZXNwsCRqaD2OwFZXr81zSXwE2UdPmIfTYTjeVsOAI7GZ7akCsRPK64ni0XfoXue2 XUSrUUTRimTkuMHrTYaHY3544a+GduQQLLA+avseLmjvKHxsU4zna0p0Yb4czwoJj+wSkVGQ NMDbxcY26CMPK204jhRm9RG687qq6691hbiuAtWABeAsl1AS+mdS7aP/4uOM4kFCvXYgIHxP /BoVz9CZTMEVAZVzbRKyYCLUf1wLhcHzugTiONz9fWMBLLskKvq7m1tlr61mNgY9nVwwClMU uE7i1H9r/2/UXLd+pY82zcXhFrfmKuCDmOkB5xPsOMVQJH8I0/lbqfLAqfsxSb/X1VKaP243 jzi+DzD9cvj2K6eD5j5kcKJJQactXqfJvF1Eb+OnxlB1BCLE8D1rNkPO5O742Mq3MgDmq19l +abzEL6QDAAxn9md8KwrA3RtucNh87cHlDXfUBKa7SRvBjTczDg+HEPNk2u3hrz1j3l2rliQ y1UfYx7Vk/TrdwUIJgKS8QAr8Lw9WuvY2hSqL9vEjx8VAkPWNWPwrQ== Message-ID: <64cca307-0045-7f82-9916-fa45095be2c2@gmail.com> Date: Thu, 13 Feb 2020 19:58:16 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 MIME-Version: 1.0 In-Reply-To: <48f9ec0c-1f1e-5a6c-283b-7efc4ce1bd5e@collabora.com> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200213_105825_516309_4F6A9C02 X-CRM114-Status: GOOD ( 21.28 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, rdunlap@infradead.org, frank-w@public-files.de, sean.wang@mediatek.com, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, sean.wang@kernel.org, wens@csie.org, drinkcat@chromium.org, linux-mediatek@lists.infradead.org, mbrugger@suse.com, hsinyi@chromium.org, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 09/12/2019 10:39, Enric Balletbo i Serra wrote: > Hi Matthias, > > On 7/12/19 23:47, matthias.bgg@kernel.org wrote: >> From: Matthias Brugger >> >> It can happen that the mmsys clock drivers aren't probed before the >> platform driver gets invoked. The platform driver used to print a warning >> that the driver failed to get the clocks. Omit this error on >> the defered probe path. >> >> Signed-off-by: Matthias Brugger >> --- >> drivers/gpu/drm/mediatek/mtk_disp_color.c | 5 ++++- >> drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 5 ++++- >> drivers/gpu/drm/mediatek/mtk_disp_rdma.c | 5 ++++- >> drivers/gpu/drm/mediatek/mtk_dpi.c | 12 +++++++++--- >> drivers/gpu/drm/mediatek/mtk_drm_ddp.c | 4 +++- >> drivers/gpu/drm/mediatek/mtk_dsi.c | 8 ++++++-- >> drivers/gpu/drm/mediatek/mtk_hdmi.c | 4 +++- >> 7 files changed, 33 insertions(+), 10 deletions(-) >> >> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_color.c b/drivers/gpu/drm/mediatek/mtk_disp_color.c >> index 59de2a46aa49..8f0fc96ef7bc 100644 >> --- a/drivers/gpu/drm/mediatek/mtk_disp_color.c >> +++ b/drivers/gpu/drm/mediatek/mtk_disp_color.c >> @@ -118,7 +118,10 @@ static int mtk_disp_color_probe(struct platform_device *pdev) >> ret = mtk_ddp_comp_init(dev, dev->of_node, &priv->ddp_comp, comp_id, >> &mtk_disp_color_funcs); >> if (ret) { >> - dev_err(dev, "Failed to initialize component: %d\n", ret); >> + if (ret != -EPROBE_DEFER) >> + dev_err(dev, "Failed to initialize component: %d\n", >> + ret); >> + >> return ret; >> } >> >> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c >> index 21851756c579..7487b0182c05 100644 >> --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c >> +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c >> @@ -285,7 +285,10 @@ static int mtk_disp_ovl_probe(struct platform_device *pdev) >> ret = mtk_ddp_comp_init(dev, dev->of_node, &priv->ddp_comp, comp_id, >> &mtk_disp_ovl_funcs); >> if (ret) { >> - dev_err(dev, "Failed to initialize component: %d\n", ret); >> + if (ret != -EPROBE_DEFER) >> + dev_err(dev, "Failed to initialize component: %d\n", >> + ret); >> + >> return ret; >> } >> >> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c >> index 405afef31407..835ea8f8dab9 100644 >> --- a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c >> +++ b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c >> @@ -287,7 +287,10 @@ static int mtk_disp_rdma_probe(struct platform_device *pdev) >> ret = mtk_ddp_comp_init(dev, dev->of_node, &priv->ddp_comp, comp_id, >> &mtk_disp_rdma_funcs); >> if (ret) { >> - dev_err(dev, "Failed to initialize component: %d\n", ret); >> + if (ret != -EPROBE_DEFER) >> + dev_err(dev, "Failed to initialize component: %d\n", >> + ret); >> + >> return ret; >> } >> >> diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c >> index be6d95c5ff25..9ed32470ad02 100644 >> --- a/drivers/gpu/drm/mediatek/mtk_dpi.c >> +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c >> @@ -700,21 +700,27 @@ static int mtk_dpi_probe(struct platform_device *pdev) >> dpi->engine_clk = devm_clk_get(dev, "engine"); >> if (IS_ERR(dpi->engine_clk)) { >> ret = PTR_ERR(dpi->engine_clk); >> - dev_err(dev, "Failed to get engine clock: %d\n", ret); >> + if (ret != -EPROBE_DEFER) >> + dev_err(dev, "Failed to get engine clock: %d\n", ret); > > This is only to print an error and I think that devm_clk_get will print a > warning if the clk is not found. I guess that you can just remove the dev_err > print logic, here and below. > I didn't follow all the paths, but at least devres_alloc in devm_clk_get isn't able to alloc the memory, it will silently return -ENOMEM. So I think it is OK to print an error message here. Regards, Matthias > In case there is an optional clock you could use devm_clk_get_optional, not sure > if there is any, though. > >> + >> return ret; >> } >> >> dpi->pixel_clk = devm_clk_get(dev, "pixel"); >> if (IS_ERR(dpi->pixel_clk)) { >> ret = PTR_ERR(dpi->pixel_clk); >> - dev_err(dev, "Failed to get pixel clock: %d\n", ret); >> + if (ret != -EPROBE_DEFER) >> + dev_err(dev, "Failed to get pixel clock: %d\n", ret); >> + > > ditto > >> return ret; >> } >> >> dpi->tvd_clk = devm_clk_get(dev, "pll"); >> if (IS_ERR(dpi->tvd_clk)) { >> ret = PTR_ERR(dpi->tvd_clk); >> - dev_err(dev, "Failed to get tvdpll clock: %d\n", ret); >> + if (ret != -EPROBE_DEFER) >> + dev_err(dev, "Failed to get tvdpll clock: %d\n", ret); >> + > > ditto > >> return ret; >> } >> >> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c >> index b765181223e6..6054e2b675f9 100644 >> --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c >> +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c >> @@ -558,7 +558,9 @@ static int mtk_ddp_probe(struct platform_device *pdev) >> >> ddp->clk = devm_clk_get(dev, NULL); >> if (IS_ERR(ddp->clk)) { >> - dev_err(dev, "Failed to get clock\n"); >> + if (PTR_ERR(ddp->clk) != -EPROBE_DEFER) >> + dev_err(dev, "Failed to get clock\n"); >> + > > ditto > >> return PTR_ERR(ddp->clk); >> } >> >> diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c >> index 4332563df952..66d5b0fdd678 100644 >> --- a/drivers/gpu/drm/mediatek/mtk_dsi.c >> +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c >> @@ -1110,14 +1110,18 @@ static int mtk_dsi_probe(struct platform_device *pdev) >> dsi->engine_clk = devm_clk_get(dev, "engine"); >> if (IS_ERR(dsi->engine_clk)) { >> ret = PTR_ERR(dsi->engine_clk); >> - dev_err(dev, "Failed to get engine clock: %d\n", ret); >> + if (ret != -EPROBE_DEFER) >> + dev_err(dev, "Failed to get engine clock: %d\n", ret); >> + > > ditto > >> return ret; >> } >> >> dsi->digital_clk = devm_clk_get(dev, "digital"); >> if (IS_ERR(dsi->digital_clk)) { >> ret = PTR_ERR(dsi->digital_clk); >> - dev_err(dev, "Failed to get digital clock: %d\n", ret); >> + if (ret != -EPROBE_DEFER) >> + dev_err(dev, "Failed to get digital clock: %d\n", ret); >> + > > ditto > >> return ret; >> } >> >> diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c >> index ce91b61364eb..62f9ca2308ee 100644 >> --- a/drivers/gpu/drm/mediatek/mtk_hdmi.c >> +++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c >> @@ -1447,7 +1447,9 @@ static int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi, >> >> ret = mtk_hdmi_get_all_clk(hdmi, np); >> if (ret) { >> - dev_err(dev, "Failed to get clocks: %d\n", ret); >> + if (ret != -EPROBE_DEFER) >> + dev_err(dev, "Failed to get clocks: %d\n", ret); >> + >> return ret; >> } >> >> _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel From mboxrd@z Thu Jan 1 00:00:00 1970 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=-7.8 required=3.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham 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 1185AC352A3 for ; Thu, 13 Feb 2020 18:58:27 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id DE8AF206CC for ; Thu, 13 Feb 2020 18:58:26 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="XrH+dwwB" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DE8AF206CC Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 6F8936F626; Thu, 13 Feb 2020 18:58:26 +0000 (UTC) Received: from mail-pl1-x643.google.com (mail-pl1-x643.google.com [IPv6:2607:f8b0:4864:20::643]) by gabe.freedesktop.org (Postfix) with ESMTPS id 268946F626 for ; Thu, 13 Feb 2020 18:58:25 +0000 (UTC) Received: by mail-pl1-x643.google.com with SMTP id p11so2689136plq.10 for ; Thu, 13 Feb 2020 10:58:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:cc:references:from:autocrypt:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=4sbfXgq71Lw3rV1MfbUqA//xkH8k/BQruTGRX8wE71Y=; b=XrH+dwwBkvkzUT773puDhJFzQk/18wegXBfiOuU57s/5ZyPyf5HoV5HFa2mIhDkmsD 6LQuJ2P6obUijyjHQdXP7wlwA2wgR7adMpcZE6V6u3nh6OVLy+HYHW5WNARYe8o3rzi8 VkNdho5h78lDFKlXn9bWeIq/gF13GBWqPRTDCztWcrE0nkYCLMuA8U9XN7pzSBXRA8T8 nDZ4I/5SqFsF0rvc5HTLAJmcwhBAAMljDXjKKFWfG8+AuIASLKEuS7pcPc92LpWClSNY 9gUyN44Yr2dPADIC6BTm1owpaQ0WvWTcKgOo5aW8JNq4dkVKKbVyBpQXnmo6JccOGY55 SMGg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:autocrypt :message-id:date:user-agent:mime-version:in-reply-to :content-language:content-transfer-encoding; bh=4sbfXgq71Lw3rV1MfbUqA//xkH8k/BQruTGRX8wE71Y=; b=suU/0qf3DE/1wwA15GlX5UjFs8WkqvJi1vpXStF0AuytBg59NMn3Xei5nWRkgWRe7f HDBouQ9++vGbCN54Ya7bqcnRKevCPPQEhWfq/GyEkvdD6GySWu3pnEvPglvK4q8AukWk JRhDikhi5HDsJ740gGIgvnX0dhktBMuZt6UCLifnKf/a8Sq9IkcQLsQCZhE3ERZTIynD VJ5Dcmmq9+WacEYFnAdH/P8HdlGFNBnw+T+pIGUnFVqZUhMr3Ty/JZjjCikmPGNzBocE iAZ/p57ByzFbMCunJGr8SvcgvlZUzyUU7trm1/1KAwZgJbkAHQIbZNH6RZ0bPIs7bOMe jWPA== X-Gm-Message-State: APjAAAVxft9cvbENOO51FInVu6GNYBr5xYf6+rJnHsh1GDbCZ9UgM5XL elyEuQC9jNUEjPCuieTulKY= X-Google-Smtp-Source: APXvYqxQOJlqjdnHOmVbxzWipaSuMhxCrAsPSA51vXQledp5uG2W8ppDo60OIaUE0ZM/csyt6hv4HA== X-Received: by 2002:a17:90a:1e63:: with SMTP id w90mr6688896pjw.36.1581620304545; Thu, 13 Feb 2020 10:58:24 -0800 (PST) Received: from ziggy.stardust ([37.223.145.31]) by smtp.gmail.com with ESMTPSA id b12sm4099080pfr.26.2020.02.13.10.58.18 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 13 Feb 2020 10:58:23 -0800 (PST) Subject: Re: [resend PATCH v6 04/12] drm: mediatek: Omit warning on probe defers To: Enric Balletbo i Serra , matthias.bgg@kernel.org, robh+dt@kernel.org, mark.rutland@arm.com, ck.hu@mediatek.com, p.zabel@pengutronix.de, airlied@linux.ie, mturquette@baylibre.com, sboyd@kernel.org, ulrich.hecht+renesas@gmail.com, laurent.pinchart@ideasonboard.com References: <20191207224740.24536-1-matthias.bgg@kernel.org> <20191207224740.24536-5-matthias.bgg@kernel.org> <48f9ec0c-1f1e-5a6c-283b-7efc4ce1bd5e@collabora.com> From: Matthias Brugger Autocrypt: addr=matthias.bgg@gmail.com; prefer-encrypt=mutual; keydata= mQINBFP1zgUBEAC21D6hk7//0kOmsUrE3eZ55kjc9DmFPKIz6l4NggqwQjBNRHIMh04BbCMY fL3eT7ZsYV5nur7zctmJ+vbszoOASXUpfq8M+S5hU2w7sBaVk5rpH9yW8CUWz2+ZpQXPJcFa OhLZuSKB1F5JcvLbETRjNzNU7B3TdS2+zkgQQdEyt7Ij2HXGLJ2w+yG2GuR9/iyCJRf10Okq gTh//XESJZ8S6KlOWbLXRE+yfkKDXQx2Jr1XuVvM3zPqH5FMg8reRVFsQ+vI0b+OlyekT/Xe 0Hwvqkev95GG6x7yseJwI+2ydDH6M5O7fPKFW5mzAdDE2g/K9B4e2tYK6/rA7Fq4cqiAw1+u EgO44+eFgv082xtBez5WNkGn18vtw0LW3ESmKh19u6kEGoi0WZwslCNaGFrS4M7OH+aOJeqK fx5dIv2CEbxc6xnHY7dwkcHikTA4QdbdFeUSuj4YhIZ+0QlDVtS1QEXyvZbZky7ur9rHkZvP ZqlUsLJ2nOqsmahMTIQ8Mgx9SLEShWqD4kOF4zNfPJsgEMB49KbS2o9jxbGB+JKupjNddfxZ HlH1KF8QwCMZEYaTNogrVazuEJzx6JdRpR3sFda/0x5qjTadwIW6Cl9tkqe2h391dOGX1eOA 1ntn9O/39KqSrWNGvm+1raHK+Ev1yPtn0Wxn+0oy1tl67TxUjQARAQABtClNYXR0aGlhcyBC cnVnZ2VyIDxtYXR0aGlhcy5iZ2dAZ21haWwuY29tPokCUgQTAQIAPAIbAwYLCQgHAwIGFQgC CQoLBBYCAwECHgECF4AWIQTmuZIYwPLDJRwsOhfZFAuyVhMC8QUCWt3scQIZAQAKCRDZFAuy VhMC8WzRD/4onkC+gCxG+dvui5SXCJ7bGLCu0xVtiGC673Kz5Aq3heITsERHBV0BqqctOEBy ZozQQe2Hindu9lasOmwfH8+vfTK+2teCgWesoE3g3XKbrOCB4RSrQmXGC3JYx6rcvMlLV/Ch YMRR3qv04BOchnjkGtvm9aZWH52/6XfChyh7XYndTe5F2bqeTjt+kF/ql+xMc4E6pniqIfkv c0wsH4CkBHqoZl9w5e/b9MspTqsU9NszTEOFhy7p2CYw6JEa/vmzR6YDzGs8AihieIXDOfpT DUr0YUlDrwDSrlm/2MjNIPTmSGHH94ScOqu/XmGW/0q1iar/Yr0leomUOeeEzCqQtunqShtE 4Mn2uEixFL+9jiVtMjujr6mphznwpEqObPCZ3IcWqOFEz77rSL+oqFiEA03A2WBDlMm++Sve 9jpkJBLosJRhAYmQ6ey6MFO6Krylw1LXcq5z1XQQavtFRgZoruHZ3XlhT5wcfLJtAqrtfCe0 aQ0kJW+4zj9/So0uxJDAtGuOpDYnmK26dgFN0tAhVuNInEVhtErtLJHeJzFKJzNyQ4GlCaLw jKcwWcqDJcrx9R7LsCu4l2XpKiyxY6fO4O8DnSleVll9NPfAZFZvf8AIy3EQ8BokUsiuUYHz wUo6pclk55PZRaAsHDX/fNr24uC6Eh5oNQ+v4Pax/gtyybkCDQRd1TkHARAAt1BBpmaH+0o+ deSyJotkrpzZZkbSs5ygBniCUGQqXpWqgrc7Uo/qtxOFL91uOsdX1/vsnJO9FyUv3ZNI2Thw NVGCTvCP9E6u4gSSuxEfVyVThCSPvRJHCG2rC+EMAOUMpxokcX9M2b7bBEbcSjeP/E4KTa39 q+JJSeWliaghUfMXXdimT/uxpP5Aa2/D/vcUUGHLelf9TyihHyBohdyNzeEF3v9rq7kdqamZ Ihb+WYrDio/SzqTd1g+wnPJbnu45zkoQrYtBu58n7u8oo+pUummOuTR2b6dcsiB9zJaiVRIg OqL8p3K2fnE8Ewwn6IKHnLTyx5T/r2Z0ikyOeijDumZ0VOPPLTnwmb780Nym3LW1OUMieKtn I3v5GzZyS83NontvsiRd4oPGQDRBT39jAyBr8vDRl/3RpLKuwWBFTs1bYMLu0sYarwowOz8+ Mn+CRFUvRrXxociw5n0P1PgJ7vQey4muCZ4VynH1SeVb3KZ59zcQHksKtpzz2OKhtX8FCeVO mHW9u4x8s/oUVMZCXEq9QrmVhdIvJnBCqq+1bh5UC2Rfjm/vLHwt5hes0HDstbCzLyiA0LTI ADdP77RN2OJbzBkCuWE21YCTLtc8kTQlP+G8m23K5w8k2jleCSKumprCr/5qPyNlkie1HC4E GEAfdfN+uLsFw6qPzSAsmukAEQEAAYkEbAQYAQgAIBYhBOa5khjA8sMlHCw6F9kUC7JWEwLx BQJd1TkHAhsCAkAJENkUC7JWEwLxwXQgBBkBCAAdFiEEUdvKHhzqrUYPB/u8L21+TfbCqH4F Al3VOQcACgkQL21+TfbCqH79RRAAtlb6oAL9y8JM5R1T3v02THFip8OMh7YvEJCnezle9Apq C6Vx26RSQjBV1JwSBv6BpgDBNXarTGCPXcre6KGfX8u1r6hnXAHZNHP7bFGJQiBv5RqGFf45 OhOhbjXCyHc0jrnNjY4M2jTkUC+KIuOzasvggU975nolC8MiaBqfgMB2ab5W+xEiTcNCOg3+ 1SRs5/ZkQ0iyyba2FihSeSw3jTUjPsJBF15xndexoc9jpi0RKuvPiJ191Xa3pzNntIxpsxqc ZkS1HSqPI63/urNezeSejBzW0Xz2Bi/b/5R9Hpxp1AEC3OzabOBATY/1Bmh2eAVK3xpN2Fe1 Zj7HrTgmzBmSefMcSXN0oKQWEI5tHtBbw5XUj0Nw4hMhUtiMfE2HAqcaozsL34sEzi3eethZ IvKnIOTmllsDFMbOBa8oUSoaNg7GzkWSKJ59a9qPJkoj/hJqqeyEXF+WTCUv6FcA8BtBJmVf FppFzLFM/QzF5fgDZmfjc9czjRJHAGHRMMnQlW88iWamjYVye57srNq9pUql6A4lITF7w00B 5PXINFk0lMcNUdkWipu24H6rJhOO6xSP4n6OrCCcGsXsAR5oH3d4TzA9iPYrmfXAXD+hTp82 s+7cEbTsCJ9MMq09/GTCeroTQiqkp50UaR0AvhuPdfjJwVYZfmMS1+5IXA/KY6DbGBAAs5ti AK0ieoZlCv/YxOSMCz10EQWMymD2gghjxojf4iwB2MbGp8UN4+++oKLHz+2j+IL08rd2ioFN YCJBFDVoDRpF/UnrQ8LsH55UZBHuu5XyMkdJzMaHRVQc1rzfluqx+0a/CQ6Cb2q7J2d45nYx 8jMSCsGj1/iU/bKjMBtuh91hsbdWCxMRW0JnGXxcEUklbhA5uGj3W4VYCfTQxwK6JiVt7JYp bX7JdRKIyq3iMDcsTXi7dhhwqsttQRwbBci0UdFGAG4jT5p6u65MMDVTXEgYfZy0674P06qf uSyff73ivwvLR025akzJui8MLU23rWRywXOyTINz8nsPFT4ZSGT1hr5VnIBs/esk/2yFmVoc FAxs1aBO29iHmjJ8D84EJvOcKfh9RKeW8yeBNKXHrcOV4MbMOts9+vpJgBFDnJeLFQPtTHuI kQXT4+yLDvwOVAW9MPLfcHlczq/A/nhGVaG+RKWDfJWNSu/mbhqUQt4J+RFpfx1gmL3yV8NN 7JXABPi5M97PeKdx6qc/c1o3oEHH8iBkWZIYMS9fd6rtAqV3+KH5Ors7tQVtwUIDYEvttmeO ifvpW6U/4au4zBYfvvXagbyXJhG9mZvz+jN1cr0/G2ZC93IbjFFwUmHtXS4ttQ4pbrX6fjTe lq5vmROjiWirpZGm+WA3Vx9QRjqfMdS5Ag0EXdU5SAEQAJu/Jk58uOB8HSGDSuGUB+lOacXC bVOOSywZkq+Ayv+3q/XIabyeaYMwhriNuXHjUxIORQoWHIHzTCqsAgHpJFfSHoM4ulCuOPFt XjqfEHkA0urB6S0jnvJ6ev875lL4Yi6JJO7WQYRs/l7OakJiT13GoOwDIn7hHH/PGUqQoZlA d1n5SVdg6cRd7EqJ+RMNoud7ply6nUSCRMNWbNqbgyWjKsD98CMjHa33SB9WQQSQyFlf+dz+ dpirWENCoY3vvwKJaSpfeqKYuqPVSxnqpKXqqyjNnG9W46OWZp+JV5ejbyUR/2U+vMwbTilL cIUpTgdmxPCA6J0GQjmKNsNKKYgIMn6W4o/LoiO7IgROm1sdn0KbJouCa2QZoQ0+p/7mJXhl tA0XGZhNlI3npD1lLpjdd42lWboU4VeuUp4VNOXIWU/L1NZwEwMIqzFXl4HmRi8MYbHHbpN5 zW+VUrFfeRDPyjrYpax+vWS+l658PPH+sWmhj3VclIoAU1nP33FrsNfp5BiQzao30rwe4ntd eEdPENvGmLfCwiUV2DNVrmJaE3CIUUl1KIRoB5oe7rJeOvf0WuQhWjIU98glXIrh3WYd7vsf jtbEXDoWhVtwZMShMvp7ccPCe2c4YBToIthxpDhoDPUdNwOssHNLD8G4JIBexwi4q7IT9lP6 sVstwvA5ABEBAAGJAjYEGAEIACAWIQTmuZIYwPLDJRwsOhfZFAuyVhMC8QUCXdU5SAIbDAAK CRDZFAuyVhMC8bXXD/4xyfbyPGnRYtR0KFlCgkG2XWeWSR2shSiM1PZGRPxR888zA2WBYHAk 7NpJlFchpaErV6WdFrXQjDAd9YwaEHucfS7SAhxIqdIqzV5vNFrMjwhB1N8MfdUJDpgyX7Zu k/Phd5aoZXNwsCRqaD2OwFZXr81zSXwE2UdPmIfTYTjeVsOAI7GZ7akCsRPK64ni0XfoXue2 XUSrUUTRimTkuMHrTYaHY3544a+GduQQLLA+avseLmjvKHxsU4zna0p0Yb4czwoJj+wSkVGQ NMDbxcY26CMPK204jhRm9RG687qq6691hbiuAtWABeAsl1AS+mdS7aP/4uOM4kFCvXYgIHxP /BoVz9CZTMEVAZVzbRKyYCLUf1wLhcHzugTiONz9fWMBLLskKvq7m1tlr61mNgY9nVwwClMU uE7i1H9r/2/UXLd+pY82zcXhFrfmKuCDmOkB5xPsOMVQJH8I0/lbqfLAqfsxSb/X1VKaP243 jzi+DzD9cvj2K6eD5j5kcKJJQactXqfJvF1Eb+OnxlB1BCLE8D1rNkPO5O742Mq3MgDmq19l +abzEL6QDAAxn9md8KwrA3RtucNh87cHlDXfUBKa7SRvBjTczDg+HEPNk2u3hrz1j3l2rliQ y1UfYx7Vk/TrdwUIJgKS8QAr8Lw9WuvY2hSqL9vEjx8VAkPWNWPwrQ== Message-ID: <64cca307-0045-7f82-9916-fa45095be2c2@gmail.com> Date: Thu, 13 Feb 2020 19:58:16 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 MIME-Version: 1.0 In-Reply-To: <48f9ec0c-1f1e-5a6c-283b-7efc4ce1bd5e@collabora.com> Content-Language: en-US X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, rdunlap@infradead.org, frank-w@public-files.de, sean.wang@mediatek.com, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, sean.wang@kernel.org, wens@csie.org, drinkcat@chromium.org, linux-mediatek@lists.infradead.org, mbrugger@suse.com, hsinyi@chromium.org, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On 09/12/2019 10:39, Enric Balletbo i Serra wrote: > Hi Matthias, > > On 7/12/19 23:47, matthias.bgg@kernel.org wrote: >> From: Matthias Brugger >> >> It can happen that the mmsys clock drivers aren't probed before the >> platform driver gets invoked. The platform driver used to print a warning >> that the driver failed to get the clocks. Omit this error on >> the defered probe path. >> >> Signed-off-by: Matthias Brugger >> --- >> drivers/gpu/drm/mediatek/mtk_disp_color.c | 5 ++++- >> drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 5 ++++- >> drivers/gpu/drm/mediatek/mtk_disp_rdma.c | 5 ++++- >> drivers/gpu/drm/mediatek/mtk_dpi.c | 12 +++++++++--- >> drivers/gpu/drm/mediatek/mtk_drm_ddp.c | 4 +++- >> drivers/gpu/drm/mediatek/mtk_dsi.c | 8 ++++++-- >> drivers/gpu/drm/mediatek/mtk_hdmi.c | 4 +++- >> 7 files changed, 33 insertions(+), 10 deletions(-) >> >> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_color.c b/drivers/gpu/drm/mediatek/mtk_disp_color.c >> index 59de2a46aa49..8f0fc96ef7bc 100644 >> --- a/drivers/gpu/drm/mediatek/mtk_disp_color.c >> +++ b/drivers/gpu/drm/mediatek/mtk_disp_color.c >> @@ -118,7 +118,10 @@ static int mtk_disp_color_probe(struct platform_device *pdev) >> ret = mtk_ddp_comp_init(dev, dev->of_node, &priv->ddp_comp, comp_id, >> &mtk_disp_color_funcs); >> if (ret) { >> - dev_err(dev, "Failed to initialize component: %d\n", ret); >> + if (ret != -EPROBE_DEFER) >> + dev_err(dev, "Failed to initialize component: %d\n", >> + ret); >> + >> return ret; >> } >> >> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c >> index 21851756c579..7487b0182c05 100644 >> --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c >> +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c >> @@ -285,7 +285,10 @@ static int mtk_disp_ovl_probe(struct platform_device *pdev) >> ret = mtk_ddp_comp_init(dev, dev->of_node, &priv->ddp_comp, comp_id, >> &mtk_disp_ovl_funcs); >> if (ret) { >> - dev_err(dev, "Failed to initialize component: %d\n", ret); >> + if (ret != -EPROBE_DEFER) >> + dev_err(dev, "Failed to initialize component: %d\n", >> + ret); >> + >> return ret; >> } >> >> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c >> index 405afef31407..835ea8f8dab9 100644 >> --- a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c >> +++ b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c >> @@ -287,7 +287,10 @@ static int mtk_disp_rdma_probe(struct platform_device *pdev) >> ret = mtk_ddp_comp_init(dev, dev->of_node, &priv->ddp_comp, comp_id, >> &mtk_disp_rdma_funcs); >> if (ret) { >> - dev_err(dev, "Failed to initialize component: %d\n", ret); >> + if (ret != -EPROBE_DEFER) >> + dev_err(dev, "Failed to initialize component: %d\n", >> + ret); >> + >> return ret; >> } >> >> diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c >> index be6d95c5ff25..9ed32470ad02 100644 >> --- a/drivers/gpu/drm/mediatek/mtk_dpi.c >> +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c >> @@ -700,21 +700,27 @@ static int mtk_dpi_probe(struct platform_device *pdev) >> dpi->engine_clk = devm_clk_get(dev, "engine"); >> if (IS_ERR(dpi->engine_clk)) { >> ret = PTR_ERR(dpi->engine_clk); >> - dev_err(dev, "Failed to get engine clock: %d\n", ret); >> + if (ret != -EPROBE_DEFER) >> + dev_err(dev, "Failed to get engine clock: %d\n", ret); > > This is only to print an error and I think that devm_clk_get will print a > warning if the clk is not found. I guess that you can just remove the dev_err > print logic, here and below. > I didn't follow all the paths, but at least devres_alloc in devm_clk_get isn't able to alloc the memory, it will silently return -ENOMEM. So I think it is OK to print an error message here. Regards, Matthias > In case there is an optional clock you could use devm_clk_get_optional, not sure > if there is any, though. > >> + >> return ret; >> } >> >> dpi->pixel_clk = devm_clk_get(dev, "pixel"); >> if (IS_ERR(dpi->pixel_clk)) { >> ret = PTR_ERR(dpi->pixel_clk); >> - dev_err(dev, "Failed to get pixel clock: %d\n", ret); >> + if (ret != -EPROBE_DEFER) >> + dev_err(dev, "Failed to get pixel clock: %d\n", ret); >> + > > ditto > >> return ret; >> } >> >> dpi->tvd_clk = devm_clk_get(dev, "pll"); >> if (IS_ERR(dpi->tvd_clk)) { >> ret = PTR_ERR(dpi->tvd_clk); >> - dev_err(dev, "Failed to get tvdpll clock: %d\n", ret); >> + if (ret != -EPROBE_DEFER) >> + dev_err(dev, "Failed to get tvdpll clock: %d\n", ret); >> + > > ditto > >> return ret; >> } >> >> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c >> index b765181223e6..6054e2b675f9 100644 >> --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c >> +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c >> @@ -558,7 +558,9 @@ static int mtk_ddp_probe(struct platform_device *pdev) >> >> ddp->clk = devm_clk_get(dev, NULL); >> if (IS_ERR(ddp->clk)) { >> - dev_err(dev, "Failed to get clock\n"); >> + if (PTR_ERR(ddp->clk) != -EPROBE_DEFER) >> + dev_err(dev, "Failed to get clock\n"); >> + > > ditto > >> return PTR_ERR(ddp->clk); >> } >> >> diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c >> index 4332563df952..66d5b0fdd678 100644 >> --- a/drivers/gpu/drm/mediatek/mtk_dsi.c >> +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c >> @@ -1110,14 +1110,18 @@ static int mtk_dsi_probe(struct platform_device *pdev) >> dsi->engine_clk = devm_clk_get(dev, "engine"); >> if (IS_ERR(dsi->engine_clk)) { >> ret = PTR_ERR(dsi->engine_clk); >> - dev_err(dev, "Failed to get engine clock: %d\n", ret); >> + if (ret != -EPROBE_DEFER) >> + dev_err(dev, "Failed to get engine clock: %d\n", ret); >> + > > ditto > >> return ret; >> } >> >> dsi->digital_clk = devm_clk_get(dev, "digital"); >> if (IS_ERR(dsi->digital_clk)) { >> ret = PTR_ERR(dsi->digital_clk); >> - dev_err(dev, "Failed to get digital clock: %d\n", ret); >> + if (ret != -EPROBE_DEFER) >> + dev_err(dev, "Failed to get digital clock: %d\n", ret); >> + > > ditto > >> return ret; >> } >> >> diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c >> index ce91b61364eb..62f9ca2308ee 100644 >> --- a/drivers/gpu/drm/mediatek/mtk_hdmi.c >> +++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c >> @@ -1447,7 +1447,9 @@ static int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi, >> >> ret = mtk_hdmi_get_all_clk(hdmi, np); >> if (ret) { >> - dev_err(dev, "Failed to get clocks: %d\n", ret); >> + if (ret != -EPROBE_DEFER) >> + dev_err(dev, "Failed to get clocks: %d\n", ret); >> + >> return ret; >> } >> >> _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel