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 BEFE6C352A3 for ; Tue, 11 Feb 2020 17:05:11 +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 917D920656 for ; Tue, 11 Feb 2020 17:05:11 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="tj0/WKqH"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="qmL2xoFO" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 917D920656 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=ee10r7OorFUWm9F/mNEAtK4vPvrPATTw0mYF2ldoeE8=; b=tj0/WKqHyp/D2K sECynIFk7GW4xilwfv6UhNl1joRXemqbhDAccHbb3HhCaLlTR0yRM2Oq88CwVdVHNxHoVdcgEBZ++ ByQmfXk3YoadT3DQYE15fYX7Kxx0R8t2/xtNX169/1OeR8ZaIWv7ny5TmXEjadFY2iiYsHD2CSlSA MXkDVGLFZU/bRHpFeDu2IzcuVke0jyfdoyxrbYeGcHmTtGnAEhDIRZyxA469lA63fjAEeKbnedM/f EJBoVn7hCYNDU+NzRtf6VrrZz9wyjjc5pAphjGu1bFBJSfJvmN7Vm6bBszi2WtDOPaqYIHgP/g/2M vfri3Kt9MsE0lAPpSjwA==; 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 1j1Yy0-0000CM-9x; Tue, 11 Feb 2020 17:04:56 +0000 Received: from mail-wr1-x442.google.com ([2a00:1450:4864:20::442]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1j1Yxx-0000BT-WF; Tue, 11 Feb 2020 17:04:55 +0000 Received: by mail-wr1-x442.google.com with SMTP id r11so10093432wrq.10; Tue, 11 Feb 2020 09:04:53 -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=VmDHDsCDTBEaPcO48HjmtLB/18tv4dpsdwSEDE6KEM4=; b=qmL2xoFOP6pdy4MiVxTmxMHZ82sV6rozcsOjcOEdgvin77Gl/n91eFwwe6IkQ15/Sg w6fKT3j2WD2DnZFuc/galpCqMc5qew85CxbNZPDbpsulitA6m690TAuDI3/ACoBS830H 3wRJalr3/VFH5vuCew0mFVWo0CQalQKXri248LNXcAQZP4+WWkrdC6BipWnpPuALICdt NY/qpgLVS7cqThWlYcVBHDTXWTlTKFdlfcJK0yAmMkB/q1WqdDeGHAmiez8xYPJhfT/D 0z3EKWr0Ud35yqhtY0+/KzuhHI2PvkHyT3VD0woDt0Idv7HGWQlP2eKB+gxB77BYTIQa 6PhA== 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=VmDHDsCDTBEaPcO48HjmtLB/18tv4dpsdwSEDE6KEM4=; b=Ya6ucUxtMqfgXvhoSxQqqt3L7huxTUhPfSJN/5llJReLkxOTNfAVCXDcT7rnUJJG1S aXIMjAGxh+UTl01QTJpPY329Na47GLIE9ePXgOjWmF7kL2D/z3Pv9rphnKjsQXMRhTJ7 VBH2TMSxccwW3a4wywz68nNCSAwsZHeG0D299RWwy52/+BXK9L2TwQ0fd2EFJnTFmPhu TwFKN1ISHoILH4o5o0nNNQ3/0Wg+rT77OvLaTK/m4v0VqQ66LPkZ+Ikdztvai2nmUxdL z4jjqfh0cddZoCqvN/CsH4mCadbeE/c6PWAHiCSRuKbILNdA13TuXYqGF5DPSVU0e9nM XeTw== X-Gm-Message-State: APjAAAViv5A7mCJvErC/7p1NakB5nMPpg+1BrKw+IJnLRG0elDc8ObVh BbkjulOa/xRrUvBybnCNB1w= X-Google-Smtp-Source: APXvYqwmXrihyN2mn19sLeGLzA5JLJXAYaDqs4eMn2ovSS1dzyIZ3qg1ex4U/dkkUfICWHtL7scmVg== X-Received: by 2002:a5d:4705:: with SMTP id y5mr9529076wrq.370.1581440692486; Tue, 11 Feb 2020 09:04:52 -0800 (PST) Received: from ziggy.stardust ([37.223.145.31]) by smtp.gmail.com with ESMTPSA id d13sm6127040wrc.64.2020.02.11.09.04.51 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 11 Feb 2020 09:04:51 -0800 (PST) Subject: Re: [PATCH v11 07/10] soc: mediatek: Add extra sram control To: Weiyi Lu , Nicolas Boichat , Rob Herring , Sascha Hauer References: <1576813564-23927-1-git-send-email-weiyi.lu@mediatek.com> <1576813564-23927-8-git-send-email-weiyi.lu@mediatek.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: <28fcf690-74cb-b7cd-a53b-e54be71457b9@gmail.com> Date: Tue, 11 Feb 2020 18:04:50 +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: <1576813564-23927-8-git-send-email-weiyi.lu@mediatek.com> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200211_090454_065054_EACF7F8E X-CRM114-Status: GOOD ( 20.19 ) 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: James Liao , srv_heupstream@mediatek.com, linux-kernel@vger.kernel.org, Fan Chen , linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.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 20/12/2019 04:46, Weiyi Lu wrote: > For some power domains like vpu_core on MT8183 whose sram need to > do clock and internal isolation while power on/off sram. > We add a flag "sram_iso_ctrl" in scp_domain_data to judge if we > need to do the extra sram isolation control or not. > > Signed-off-by: Weiyi Lu > Reviewed-by: Nicolas Boichat > --- > drivers/soc/mediatek/mtk-scpsys.c | 24 ++++++++++++++++++++++-- > 1 file changed, 22 insertions(+), 2 deletions(-) > > diff --git a/drivers/soc/mediatek/mtk-scpsys.c b/drivers/soc/mediatek/mtk-scpsys.c > index 32be4b3..1972726 100644 > --- a/drivers/soc/mediatek/mtk-scpsys.c > +++ b/drivers/soc/mediatek/mtk-scpsys.c > @@ -56,6 +56,8 @@ > #define PWR_ON_BIT BIT(2) > #define PWR_ON_2ND_BIT BIT(3) > #define PWR_CLK_DIS_BIT BIT(4) > +#define PWR_SRAM_CLKISO_BIT BIT(5) > +#define PWR_SRAM_ISOINT_B_BIT BIT(6) > > #define PWR_STATUS_CONN BIT(1) > #define PWR_STATUS_DISP BIT(3) > @@ -86,6 +88,8 @@ > * @name: The domain name. > * @sta_mask: The mask for power on/off status bit. > * @ctl_offs: The offset for main power control register. > + * @sram_iso_ctrl: The flag to judge if the power domain need to do > + * the extra sram isolation control. > * @sram_pdn_bits: The mask for sram power control bits. > * @sram_pdn_ack_bits: The mask for sram power control acked bits. > * @basic_clk_name: The basic clocks required by this power domain. > @@ -98,6 +102,7 @@ struct scp_domain_data { > const char *name; > u32 sta_mask; > int ctl_offs; > + bool sram_iso_ctrl; Why don't we put that into the caps variable? We have plenty of space left there and if needed we can bump up its value from u8 to u32. > u32 sram_pdn_bits; > u32 sram_pdn_ack_bits; > const char *basic_clk_name[MAX_CLKS]; > @@ -233,6 +238,14 @@ static int scpsys_sram_enable(struct scp_domain *scpd, void __iomem *ctl_addr) > return ret; > } > > + if (scpd->data->sram_iso_ctrl) { > + val = readl(ctl_addr) | PWR_SRAM_ISOINT_B_BIT; > + writel(val, ctl_addr); > + udelay(1); > + val &= ~PWR_SRAM_CLKISO_BIT; > + writel(val, ctl_addr); > + } > + > return 0; > } > > @@ -242,8 +255,15 @@ static int scpsys_sram_disable(struct scp_domain *scpd, void __iomem *ctl_addr) > u32 pdn_ack = scpd->data->sram_pdn_ack_bits; > int tmp; > > - val = readl(ctl_addr); > - val |= scpd->data->sram_pdn_bits; > + if (scpd->data->sram_iso_ctrl) { > + val = readl(ctl_addr) | PWR_SRAM_CLKISO_BIT; > + writel(val, ctl_addr); > + val &= ~PWR_SRAM_ISOINT_B_BIT; > + writel(val, ctl_addr); > + udelay(1); Why do we need to wait here? > + } > + > + val = readl(ctl_addr) | scpd->data->sram_pdn_bits; > writel(val, ctl_addr); > > /* Either wait until SRAM_PDN_ACK all 1 or 0 */ > _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek