From patchwork Thu Sep 8 05:12:50 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: 12969661 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 9B8E6ECAAD5 for ; Thu, 8 Sep 2022 05:13:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229687AbiIHFNn (ORCPT ); Thu, 8 Sep 2022 01:13:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50342 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229514AbiIHFNm (ORCPT ); Thu, 8 Sep 2022 01:13:42 -0400 Received: from rtits2.realtek.com.tw (rtits2.realtek.com [211.75.126.72]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 5EDF8B6D48 for ; Wed, 7 Sep 2022 22:13:37 -0700 (PDT) Authenticated-By: X-SpamFilter-By: ArmorX SpamTrap 5.77 with qID 2885DAqX4009464, This message is accepted by code: ctloc85258 Received: from mail.realtek.com (rtexh36505.realtek.com.tw[172.21.6.25]) by rtits2.realtek.com.tw (8.15.2/2.81/5.90) with ESMTPS id 2885DAqX4009464 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=FAIL); Thu, 8 Sep 2022 13:13:11 +0800 Received: from RTEXMBS04.realtek.com.tw (172.21.6.97) by RTEXH36505.realtek.com.tw (172.21.6.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Thu, 8 Sep 2022 13:13:29 +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, 8 Sep 2022 13:13:29 +0800 From: Ping-Ke Shih To: CC: , , , , , Subject: [PATCH 2/9] wifi: rtw89: 8852c: enable the interference cancellation of MU-MIMO on 6GHz Date: Thu, 8 Sep 2022 13:12:50 +0800 Message-ID: <20220908051257.25353-3-pkshih@realtek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220908051257.25353-1-pkshih@realtek.com> References: <20220908051257.25353-1-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: 09/08/2022 04:54:00 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?Q2xlYW4sIGJhc2VzOiAyMDIyLzkvOCCkV6TIIDEyOjQ5?= =?big5_tw?b?OjAw?= X-KSE-BulkMessagesFiltering-Scan-Result: protection disabled X-KSE-ServerInfo: RTEXH36505.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 Enable MU-MIMO interference cancellation (MUIC) to yield expected performance of receiving MU-MIMO packets on 6GHz. Signed-off-by: Ping-Ke Shih --- drivers/net/wireless/realtek/rtw89/reg.h | 2 ++ drivers/net/wireless/realtek/rtw89/rtw8852c.c | 5 +++++ 2 files changed, 7 insertions(+) diff --git a/drivers/net/wireless/realtek/rtw89/reg.h b/drivers/net/wireless/realtek/rtw89/reg.h index d75894895dc7b..2537fee1125e5 100644 --- a/drivers/net/wireless/realtek/rtw89/reg.h +++ b/drivers/net/wireless/realtek/rtw89/reg.h @@ -3674,6 +3674,8 @@ #define R_S1_ADDCK 0x3E00 #define B_S1_ADDCK_I GENMASK(9, 0) #define B_S1_ADDCK_Q GENMASK(19, 10) +#define R_MUIC 0x40F8 +#define B_MUIC_EN BIT(0) #define R_DCFO 0x4264 #define B_DCFO GENMASK(1, 0) #define R_SEG0CSI 0x42AC diff --git a/drivers/net/wireless/realtek/rtw89/rtw8852c.c b/drivers/net/wireless/realtek/rtw89/rtw8852c.c index 32f5077c1bcb6..a30b723cc992e 100644 --- a/drivers/net/wireless/realtek/rtw89/rtw8852c.c +++ b/drivers/net/wireless/realtek/rtw89/rtw8852c.c @@ -1791,6 +1791,11 @@ static void rtw8852c_set_channel_bb(struct rtw89_dev *rtwdev, } } + if (chan->band_type == RTW89_BAND_6G) + rtw89_phy_write32_set(rtwdev, R_MUIC, B_MUIC_EN); + else + rtw89_phy_write32_clr(rtwdev, R_MUIC, B_MUIC_EN); + rtw8852c_bb_reset_all(rtwdev, phy_idx); }