From patchwork Thu Feb 16 05:36:33 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ping-Ke Shih X-Patchwork-Id: 13142545 X-Patchwork-Delegate: kvalo@adurom.com 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 428B8C6379F for ; Thu, 16 Feb 2023 05:37:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229493AbjBPFh2 (ORCPT ); Thu, 16 Feb 2023 00:37:28 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40088 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229843AbjBPFh0 (ORCPT ); Thu, 16 Feb 2023 00:37:26 -0500 Received: from rtits2.realtek.com.tw (rtits2.realtek.com [211.75.126.72]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 02E4416AF1; Wed, 15 Feb 2023 21:37:24 -0800 (PST) Authenticated-By: X-SpamFilter-By: ArmorX SpamTrap 5.77 with qID 31G5bCcL5026853, This message is accepted by code: ctloc85258 Received: from mail.realtek.com (rtexh36506.realtek.com.tw[172.21.6.27]) by rtits2.realtek.com.tw (8.15.2/2.81/5.90) with ESMTPS id 31G5bCcL5026853 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=OK); Thu, 16 Feb 2023 13:37:12 +0800 Received: from RTEXMBS04.realtek.com.tw (172.21.6.97) by RTEXH36506.realtek.com.tw (172.21.6.27) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.17; Thu, 16 Feb 2023 13:37:09 +0800 Received: from localhost (172.21.69.188) by RTEXMBS04.realtek.com.tw (172.21.6.97) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.7; Thu, 16 Feb 2023 13:37:09 +0800 From: Ping-Ke Shih To: , CC: , , Subject: [PATCH for-6.3] wifi: rtw88: use RTW_FLAG_POWERON flag to prevent to power on/off twice Date: Thu, 16 Feb 2023 13:36:33 +0800 Message-ID: <20230216053633.20366-1-pkshih@realtek.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Originating-IP: [172.21.69.188] X-ClientProxiedBy: RTEXMBS02.realtek.com.tw (172.21.6.95) To RTEXMBS04.realtek.com.tw (172.21.6.97) X-KSE-ServerInfo: RTEXMBS04.realtek.com.tw, 9 X-KSE-AntiSpam-Interceptor-Info: fallback X-KSE-Antivirus-Interceptor-Info: fallback X-KSE-AntiSpam-Interceptor-Info: fallback Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Use power state to decide whether we can enter or leave IPS accurately, and then prevent to power on/off twice. The commit 6bf3a083407b ("wifi: rtw88: add flag check before enter or leave IPS") would like to prevent this as well, but it still can't entirely handle all cases. The exception is that WiFi gets connected and does suspend/resume, it will power on twice and cause it failed to power on after resuming, like: rtw_8723de 0000:03:00.0: failed to poll offset=0x6 mask=0x2 value=0x2 rtw_8723de 0000:03:00.0: mac power on failed rtw_8723de 0000:03:00.0: failed to power on mac rtw_8723de 0000:03:00.0: leave idle state failed rtw_8723de 0000:03:00.0: failed to leave ips state rtw_8723de 0000:03:00.0: failed to leave idle state rtw_8723de 0000:03:00.0: failed to send h2c command To fix this, introduce new flag RTW_FLAG_POWERON to reflect power state, and call rtw_mac_pre_system_cfg() to configure registers properly between power-off/-on. Reported-by: Paul Gover Link: https://bugzilla.kernel.org/show_bug.cgi?id=217016 Fixes: 6bf3a083407b ("wifi: rtw88: add flag check before enter or leave IPS") Cc: Signed-off-by: Ping-Ke Shih --- Hi Kalle, This patch is to fix 8723DE failed to power on after system resume. Please queue this to 6.3 Thank you Ping-Ke --- drivers/net/wireless/realtek/rtw88/coex.c | 2 +- drivers/net/wireless/realtek/rtw88/mac.c | 10 ++++++++++ drivers/net/wireless/realtek/rtw88/main.h | 2 +- drivers/net/wireless/realtek/rtw88/ps.c | 4 ++-- drivers/net/wireless/realtek/rtw88/wow.c | 2 +- 5 files changed, 15 insertions(+), 5 deletions(-) diff --git a/drivers/net/wireless/realtek/rtw88/coex.c b/drivers/net/wireless/realtek/rtw88/coex.c index 38697237ee5f0..86467d2f8888c 100644 --- a/drivers/net/wireless/realtek/rtw88/coex.c +++ b/drivers/net/wireless/realtek/rtw88/coex.c @@ -4056,7 +4056,7 @@ void rtw_coex_display_coex_info(struct rtw_dev *rtwdev, struct seq_file *m) rtwdev->stats.tx_throughput, rtwdev->stats.rx_throughput); seq_printf(m, "%-40s = %u/ %u/ %u\n", "IPS/ Low Power/ PS mode", - test_bit(RTW_FLAG_INACTIVE_PS, rtwdev->flags), + !test_bit(RTW_FLAG_POWERON, rtwdev->flags), test_bit(RTW_FLAG_LEISURE_PS_DEEP, rtwdev->flags), rtwdev->lps_conf.mode); diff --git a/drivers/net/wireless/realtek/rtw88/mac.c b/drivers/net/wireless/realtek/rtw88/mac.c index 4e5c194aac299..dae64901bac5a 100644 --- a/drivers/net/wireless/realtek/rtw88/mac.c +++ b/drivers/net/wireless/realtek/rtw88/mac.c @@ -273,6 +273,11 @@ static int rtw_mac_power_switch(struct rtw_dev *rtwdev, bool pwr_on) if (rtw_pwr_seq_parser(rtwdev, pwr_seq)) return -EINVAL; + if (pwr_on) + set_bit(RTW_FLAG_POWERON, rtwdev->flags); + else + clear_bit(RTW_FLAG_POWERON, rtwdev->flags); + return 0; } @@ -335,6 +340,11 @@ int rtw_mac_power_on(struct rtw_dev *rtwdev) ret = rtw_mac_power_switch(rtwdev, true); if (ret == -EALREADY) { rtw_mac_power_switch(rtwdev, false); + + ret = rtw_mac_pre_system_cfg(rtwdev); + if (ret) + goto err; + ret = rtw_mac_power_switch(rtwdev, true); if (ret) goto err; diff --git a/drivers/net/wireless/realtek/rtw88/main.h b/drivers/net/wireless/realtek/rtw88/main.h index 165f299e8e1f9..d4a53d5567451 100644 --- a/drivers/net/wireless/realtek/rtw88/main.h +++ b/drivers/net/wireless/realtek/rtw88/main.h @@ -356,7 +356,7 @@ enum rtw_flags { RTW_FLAG_RUNNING, RTW_FLAG_FW_RUNNING, RTW_FLAG_SCANNING, - RTW_FLAG_INACTIVE_PS, + RTW_FLAG_POWERON, RTW_FLAG_LEISURE_PS, RTW_FLAG_LEISURE_PS_DEEP, RTW_FLAG_DIG_DISABLE, diff --git a/drivers/net/wireless/realtek/rtw88/ps.c b/drivers/net/wireless/realtek/rtw88/ps.c index 11594940d6b00..996365575f44f 100644 --- a/drivers/net/wireless/realtek/rtw88/ps.c +++ b/drivers/net/wireless/realtek/rtw88/ps.c @@ -25,7 +25,7 @@ static int rtw_ips_pwr_up(struct rtw_dev *rtwdev) int rtw_enter_ips(struct rtw_dev *rtwdev) { - if (test_and_set_bit(RTW_FLAG_INACTIVE_PS, rtwdev->flags)) + if (!test_bit(RTW_FLAG_POWERON, rtwdev->flags)) return 0; rtw_coex_ips_notify(rtwdev, COEX_IPS_ENTER); @@ -50,7 +50,7 @@ int rtw_leave_ips(struct rtw_dev *rtwdev) { int ret; - if (!test_and_clear_bit(RTW_FLAG_INACTIVE_PS, rtwdev->flags)) + if (test_bit(RTW_FLAG_POWERON, rtwdev->flags)) return 0; rtw_hci_link_ps(rtwdev, false); diff --git a/drivers/net/wireless/realtek/rtw88/wow.c b/drivers/net/wireless/realtek/rtw88/wow.c index 89dc595094d5c..16ddee577efec 100644 --- a/drivers/net/wireless/realtek/rtw88/wow.c +++ b/drivers/net/wireless/realtek/rtw88/wow.c @@ -592,7 +592,7 @@ static int rtw_wow_leave_no_link_ps(struct rtw_dev *rtwdev) if (rtw_get_lps_deep_mode(rtwdev) != LPS_DEEP_MODE_NONE) rtw_leave_lps_deep(rtwdev); } else { - if (test_bit(RTW_FLAG_INACTIVE_PS, rtwdev->flags)) { + if (!test_bit(RTW_FLAG_POWERON, rtwdev->flags)) { rtw_wow->ips_enabled = true; ret = rtw_leave_ips(rtwdev); if (ret)