From patchwork Tue Nov 3 09:54:38 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?5Yav6ZSQ?= X-Patchwork-Id: 315158 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=-12.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 1011AC388F2 for ; Tue, 3 Nov 2020 09:54:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B19DE2080C for ; Tue, 3 Nov 2020 09:54:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727716AbgKCJyu (ORCPT ); Tue, 3 Nov 2020 04:54:50 -0500 Received: from rtits2.realtek.com ([211.75.126.72]:39269 "EHLO rtits2.realtek.com.tw" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727709AbgKCJyt (ORCPT ); Tue, 3 Nov 2020 04:54:49 -0500 Authenticated-By: X-SpamFilter-By: ArmorX SpamTrap 5.73 with qID 0A39seWpB015332, This message is accepted by code: ctloc85258 Received: from RSEXMBS01.realsil.com.cn ([172.29.17.195]) by rtits2.realtek.com.tw (8.15.2/2.70/5.88) with ESMTPS id 0A39seWpB015332 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT); Tue, 3 Nov 2020 17:54:40 +0800 Received: from localhost (172.29.40.150) by RSEXMBS01.realsil.com.cn (172.29.17.195) with Microsoft SMTP Server id 15.1.2044.4; Tue, 3 Nov 2020 17:54:40 +0800 From: To: , , CC: , , Rui Feng Subject: [PATCH 2/8] misc: rtsx: Fix OCP function for RTS5261 Date: Tue, 3 Nov 2020 17:54:38 +0800 Message-ID: <1604397278-2815-1-git-send-email-rui_feng@realsil.com.cn> X-Mailer: git-send-email 1.9.1 MIME-Version: 1.0 X-Originating-IP: [172.29.40.150] Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org From: Rui Feng This patch fix the bug that when there is over current but reader can't enable OCP. Signed-off-by: Rui Feng --- drivers/misc/cardreader/rts5261.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/misc/cardreader/rts5261.c b/drivers/misc/cardreader/rts5261.c index 536c90d4fd76..531bbaed7a12 100644 --- a/drivers/misc/cardreader/rts5261.c +++ b/drivers/misc/cardreader/rts5261.c @@ -272,6 +272,9 @@ static void rts5261_enable_ocp(struct rtsx_pcr *pcr) u8 val = 0; val = SD_OCP_INT_EN | SD_DETECT_EN; + rtsx_pci_write_register(pcr, RTS5261_LDO1_CFG0, + RTS5261_LDO1_OCP_EN | RTS5261_LDO1_OCP_LMT_EN, + RTS5261_LDO1_OCP_EN | RTS5261_LDO1_OCP_LMT_EN); rtsx_pci_write_register(pcr, REG_OCPCTL, 0xFF, val); } @@ -340,7 +343,7 @@ static void rts5261_clear_ocpstat(struct rtsx_pcr *pcr) rtsx_pci_write_register(pcr, REG_OCPCTL, mask, val); - udelay(10); + udelay(1000); rtsx_pci_write_register(pcr, REG_OCPCTL, mask, 0); } @@ -353,9 +356,9 @@ static void rts5261_process_ocp(struct rtsx_pcr *pcr) rtsx_pci_get_ocpstat(pcr, &pcr->ocp_stat); if (pcr->ocp_stat & (SD_OC_NOW | SD_OC_EVER)) { + rts5261_clear_ocpstat(pcr); rts5261_card_power_off(pcr, RTSX_SD_CARD); rtsx_pci_write_register(pcr, CARD_OE, SD_OUTPUT_EN, 0); - rts5261_clear_ocpstat(pcr); pcr->ocp_stat = 0; } @@ -513,6 +516,7 @@ static int rts5261_extra_init_hw(struct rtsx_pcr *pcr) rtsx_pci_write_register(pcr, PETXCFG, FORCE_CLKREQ_DELINK_MASK, FORCE_CLKREQ_HIGH); + rtsx_pci_write_register(pcr, PWD_SUSPEND_EN, 0xFF, 0xFB); rtsx_pci_write_register(pcr, pcr->reg_pm_ctrl3, 0x10, 0x00); rtsx_pci_write_register(pcr, RTS5261_REG_PME_FORCE_CTL, FORCE_PM_CONTROL | FORCE_PM_VALUE, FORCE_PM_CONTROL);