From patchwork Mon Mar 1 16:13:21 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 389642 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=-18.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT 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 4D0F4C4361B for ; Mon, 1 Mar 2021 18:39:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 22B0E6146D for ; Mon, 1 Mar 2021 18:39:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240247AbhCASiV (ORCPT ); Mon, 1 Mar 2021 13:38:21 -0500 Received: from mail.kernel.org ([198.145.29.99]:43170 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235419AbhCAS3I (ORCPT ); Mon, 1 Mar 2021 13:29:08 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 0E3876525C; Mon, 1 Mar 2021 17:28:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1614619713; bh=AeM1sUaPQEBLlCCsPmlL8E90/x6jk0T8/zUba93pCt0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=qqTM0721XdbjIuzFOvka1YOkN1X+UJoIzSecQqdotd5WWslNoy788sfwh+McQUreD gl56UOASWTBrJVxlPpdZq0Wv96Z4L0HzQPba5EzI5a3c1WU/CFMqG2Nw6up2Wlj+mi Emop3ozuU+PZAZ6B5ARIShJOw+fLqP4ha5PWhtaU= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Ricky Wu Subject: [PATCH 5.10 553/663] misc: rtsx: init of rts522a add OCP power off when no card is present Date: Mon, 1 Mar 2021 17:13:21 +0100 Message-Id: <20210301161209.231497197@linuxfoundation.org> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210301161141.760350206@linuxfoundation.org> References: <20210301161141.760350206@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Ricky Wu commit 920fd8a70619074eac7687352c8f1c6f3c2a64a5 upstream. Power down OCP for power consumption when no SD/MMC card is present Cc: stable@vger.kernel.org Signed-off-by: Ricky Wu Link: https://lore.kernel.org/r/20210204083115.9471-1-ricky_wu@realtek.com Signed-off-by: Greg Kroah-Hartman --- drivers/misc/cardreader/rts5227.c | 5 +++++ 1 file changed, 5 insertions(+) --- a/drivers/misc/cardreader/rts5227.c +++ b/drivers/misc/cardreader/rts5227.c @@ -398,6 +398,11 @@ static int rts522a_extra_init_hw(struct { 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);