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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 40746C433FE for ; Tue, 12 Apr 2022 12:53:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1354310AbiDLMz7 (ORCPT ); Tue, 12 Apr 2022 08:55:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54088 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1355372AbiDLMyB (ORCPT ); Tue, 12 Apr 2022 08:54:01 -0400 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4DE5FB96; Tue, 12 Apr 2022 05:28:04 -0700 (PDT) X-UUID: c52d90e3ce51492aa708dae783fdfe10-20220412 X-UUID: c52d90e3ce51492aa708dae783fdfe10-20220412 Received: from mtkcas10.mediatek.inc [(172.21.101.39)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 851005236; Tue, 12 Apr 2022 20:27:57 +0800 Received: from mtkexhb01.mediatek.inc (172.21.101.102) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.792.3; Tue, 12 Apr 2022 20:27:56 +0800 Received: from mtkcas11.mediatek.inc (172.21.101.40) by mtkexhb01.mediatek.inc (172.21.101.102) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 12 Apr 2022 20:27:55 +0800 Received: from mtksdccf07 (172.21.84.99) by mtkcas11.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Tue, 12 Apr 2022 20:27:55 +0800 Message-ID: <29a0d0e1f9ad2f14be56410e5a9e123d6a35dfe3.camel@mediatek.com> Subject: Re: [PATCH] spi: spi-mtk-nor: initialize spi controller after resume From: Rex-BC Chen To: Allen-KH Cheng , Mark Brown , Matthias Brugger , "Ikjoon Jang" CC: , , , , Date: Tue, 12 Apr 2022 20:27:55 +0800 In-Reply-To: <20220412115743.22641-1-allen-kh.cheng@mediatek.com> References: <20220412115743.22641-1-allen-kh.cheng@mediatek.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.28.5-0ubuntu0.18.04.2 MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 2022-04-12 at 19:57 +0800, Allen-KH Cheng wrote: > After system resumes, the registers of nor controller are > initialized with default values. The nor controller will > not function properly. > > To handle both issues above, we add mtk_nor_init() in > mtk_nor_resume after pm_runtime_force_resume(). > > Fixes: 3bfd9103c7af ("spi: spi-mtk-nor: Add power management > support") > > Signed-off-by: Allen-KH Cheng > --- Reviewed-by: Rex-BC Chen