From patchwork Fri Apr 29 07:18:05 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ping-Ke Shih X-Patchwork-Id: 567703 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 147C5C43219 for ; Fri, 29 Apr 2022 07:18:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1355080AbiD2HWO (ORCPT ); Fri, 29 Apr 2022 03:22:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44804 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1355066AbiD2HWK (ORCPT ); Fri, 29 Apr 2022 03:22:10 -0400 Received: from rtits2.realtek.com.tw (rtits2.realtek.com [211.75.126.72]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E098BBF514 for ; Fri, 29 Apr 2022 00:18:52 -0700 (PDT) Authenticated-By: X-SpamFilter-By: ArmorX SpamTrap 5.73 with qID 23T7IlAD2001494, This message is accepted by code: ctloc85258 Received: from mail.realtek.com (rtexh36504.realtek.com.tw[172.21.6.27]) by rtits2.realtek.com.tw (8.15.2/2.71/5.88) with ESMTPS id 23T7IlAD2001494 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT); Fri, 29 Apr 2022 15:18:47 +0800 Received: from RTEXMBS04.realtek.com.tw (172.21.6.97) by RTEXH36504.realtek.com.tw (172.21.6.27) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.27; Fri, 29 Apr 2022 15:18:47 +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 15.1.2308.21; Fri, 29 Apr 2022 15:18:47 +0800 From: Ping-Ke Shih To: CC: Subject: [PATCH v2 12/16] rtw89: ps: fine tune polling interval while changing low power mode Date: Fri, 29 Apr 2022 15:18:05 +0800 Message-ID: <20220429071809.32104-13-pkshih@realtek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220429071809.32104-1-pkshih@realtek.com> References: <20220429071809.32104-1-pkshih@realtek.com> 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: trusted connection X-KSE-Antiphishing-Info: Clean X-KSE-Antiphishing-ScanningType: Deterministic X-KSE-Antiphishing-Method: None X-KSE-Antiphishing-Bases: 04/29/2022 06:59:00 X-KSE-AttachmentFiltering-Interceptor-Info: no applicable attachment filtering rules found X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: =?big5_tw?b?Q2xlYW4sIGJhc2VzOiAyMDIyLzQvMjkgpFekyCAwNjow?= =?big5_tw?b?MDowMA==?= X-KSE-BulkMessagesFiltering-Scan-Result: protection disabled X-KSE-ServerInfo: RTEXH36504.realtek.com.tw, 9 X-KSE-Attachment-Filter-Triggered-Rules: Clean X-KSE-Attachment-Filter-Triggered-Filters: Clean X-KSE-BulkMessagesFiltering-Scan-Result: protection disabled Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org By experiments, it spends ~45/1090~2480us to enter/leave low power mode, so the old polling interval 1000us can waste time. Use smaller polling interval depends on experimental results to reduce the time to transition state. Signed-off-by: Ping-Ke Shih --- drivers/net/wireless/realtek/rtw89/mac.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/realtek/rtw89/mac.c b/drivers/net/wireless/realtek/rtw89/mac.c index 05b94842fe662..07f6634d56a01 100644 --- a/drivers/net/wireless/realtek/rtw89/mac.c +++ b/drivers/net/wireless/realtek/rtw89/mac.c @@ -1050,6 +1050,7 @@ static int rtw89_mac_check_cpwm_state(struct rtw89_dev *rtwdev, void rtw89_mac_power_mode_change(struct rtw89_dev *rtwdev, bool enter) { enum rtw89_rpwm_req_pwr_state state; + unsigned long delay = enter ? 10 : 150; int ret; if (enter) @@ -1059,7 +1060,7 @@ void rtw89_mac_power_mode_change(struct rtw89_dev *rtwdev, bool enter) rtw89_mac_send_rpwm(rtwdev, state, false); ret = read_poll_timeout_atomic(rtw89_mac_check_cpwm_state, ret, !ret, - 1000, 15000, false, rtwdev, state); + delay, 15000, false, rtwdev, state); if (ret) rtw89_err(rtwdev, "firmware failed to ack for %s ps mode\n", enter ? "entering" : "leaving");