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=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 3F237C433DB for ; Thu, 4 Feb 2021 08:32:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E6C9D64F39 for ; Thu, 4 Feb 2021 08:32:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235002AbhBDIc0 (ORCPT ); Thu, 4 Feb 2021 03:32:26 -0500 Received: from rtits2.realtek.com ([211.75.126.72]:57839 "EHLO rtits2.realtek.com.tw" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234957AbhBDIcY (ORCPT ); Thu, 4 Feb 2021 03:32:24 -0500 Authenticated-By: X-SpamFilter-By: ArmorX SpamTrap 5.73 with qID 1148VMtA4009881, This message is accepted by code: ctloc85258 Received: from mail.realtek.com (rtexmbs01.realtek.com.tw[172.21.6.94]) by rtits2.realtek.com.tw (8.15.2/2.70/5.88) with ESMTPS id 1148VMtA4009881 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT); Thu, 4 Feb 2021 16:31:22 +0800 Received: from localhost (172.22.88.222) by RTEXMBS01.realtek.com.tw (172.21.6.94) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2106.2; Thu, 4 Feb 2021 16:31:21 +0800 From: To: , , , , , , CC: Subject: [PATCH v2] misc: rtsx: init of rts522a add OCP power off when no card is present Date: Thu, 4 Feb 2021 16:31:15 +0800 Message-ID: <20210204083115.9471-1-ricky_wu@realtek.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [172.22.88.222] X-ClientProxiedBy: RTEXMBS02.realtek.com.tw (172.21.6.95) To RTEXMBS01.realtek.com.tw (172.21.6.94) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Ricky Wu Power down OCP for power consumption when no SD/MMC card is present Cc: stable@vger.kernel.org Signed-off-by: Ricky Wu --- v2: update the subject line and description --- drivers/misc/cardreader/rts5227.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/misc/cardreader/rts5227.c b/drivers/misc/cardreader/rts5227.c index 8859011672cb..8200af22b529 100644 --- a/drivers/misc/cardreader/rts5227.c +++ b/drivers/misc/cardreader/rts5227.c @@ -398,6 +398,11 @@ static int rts522a_extra_init_hw(struct rtsx_pcr *pcr) { rts5227_extra_init_hw(pcr); + /* Power down OCP for power consumption */ + if (!pcr->card_exist) + rtsx_pci_write_register(pcr, FPDCTL, OC_POWER_DOWN, + OC_POWER_DOWN); + rtsx_pci_write_register(pcr, FUNC_FORCE_CTL, FUNC_FORCE_UPME_XMT_DBG, FUNC_FORCE_UPME_XMT_DBG); rtsx_pci_write_register(pcr, PCLK_CTL, 0x04, 0x04); -- 2.17.1