From patchwork Mon Dec 26 09:42:43 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Roger Lu X-Patchwork-Id: 637218 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 E274AC54EBE for ; Mon, 26 Dec 2022 09:43:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231718AbiLZJnL (ORCPT ); Mon, 26 Dec 2022 04:43:11 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60176 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231643AbiLZJnE (ORCPT ); Mon, 26 Dec 2022 04:43:04 -0500 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9133EE9A; Mon, 26 Dec 2022 01:43:02 -0800 (PST) X-UUID: 0e5919f2607f4b58bb25fe8f51212f54-20221226 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=LoWOBCRpuIv0lWQImnSJ5VJr+gKMSYGQngXpmKueuqc=; b=enbKf5RNDhhhM1JVBdRFKx8Vq6LHLUCcU1F5LzmQNhd91kw5hhP9mGNmeN3N/WHO2VecvuAgTVVB5aZz9yfDWLvuvg+Lp52aBYHwyBQ75M3UMzTOR6jyZog/zpi0KkVAmSYwphDGGaqvTTo7M8GZCK+3AKNldLaFOqwNMMkvZxw=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.14, REQID:9a1a951d-64e5-425d-83d2-93023d9bdd57, IP:0, U RL:0,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION: release,TS:0 X-CID-META: VersionHash:dcaaed0, CLOUDID:fd166a8a-8530-4eff-9f77-222cf6e2895b, B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:11|1,File:nil,Bulk:nil,QS:nil,BEC:nil,COL:0 X-UUID: 0e5919f2607f4b58bb25fe8f51212f54-20221226 Received: from mtkmbs13n2.mediatek.inc [(172.21.101.108)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 400275205; Mon, 26 Dec 2022 17:42:51 +0800 Received: from mtkmbs11n2.mediatek.inc (172.21.101.187) by mtkmbs11n2.mediatek.inc (172.21.101.187) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.792.15; Mon, 26 Dec 2022 17:42:50 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs11n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.792.15 via Frontend Transport; Mon, 26 Dec 2022 17:42:50 +0800 From: Roger Lu To: Matthias Brugger , Enric Balletbo Serra , Kevin Hilman , Nicolas Boichat CC: Fan Chen , Roger Lu , Jia-wei Chang , , , , , , Subject: [PATCH v1 08/13] soc: mediatek: mtk-svs: add main_clk check during system-wide suspend Date: Mon, 26 Dec 2022 17:42:43 +0800 Message-ID: <20221226094248.4506-9-roger.lu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20221226094248.4506-1-roger.lu@mediatek.com> References: <20221226094248.4506-1-roger.lu@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org SVS's main_clk might be disabled in svs_resume(). Therefore, if main_clk is disabled and svs_suspend() is called by system-wide suspend stage, return 0 directly. Signed-off-by: Roger Lu --- drivers/soc/mediatek/mtk-svs.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/soc/mediatek/mtk-svs.c b/drivers/soc/mediatek/mtk-svs.c index 2c1fbf11b554..934e7ea976b0 100644 --- a/drivers/soc/mediatek/mtk-svs.c +++ b/drivers/soc/mediatek/mtk-svs.c @@ -6,6 +6,7 @@ #include #include #include +#include #include #include #include @@ -1543,6 +1544,9 @@ static int svs_suspend(struct device *dev) int ret; u32 idx; + if (!__clk_is_enabled(svsp->main_clk)) + return 0; + for (idx = 0; idx < svsp->bank_max; idx++) { svsb = &svsp->banks[idx];