From mboxrd@z Thu Jan 1 00:00:00 1970 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=-16.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,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 7D7EDC2BBD4 for ; Thu, 10 Dec 2020 14:06:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3C50B22BF5 for ; Thu, 10 Dec 2020 14:06:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389981AbgLJOG6 (ORCPT ); Thu, 10 Dec 2020 09:06:58 -0500 Received: from m43-15.mailgun.net ([69.72.43.15]:55380 "EHLO m43-15.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389973AbgLJOGZ (ORCPT ); Thu, 10 Dec 2020 09:06:25 -0500 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1607609170; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=8f6Wwbr3ebIfIkoU5u7amqc1MjaQk77CnDn7dwd3XYM=; b=taPBNQGjndHUYJDE8/e4lvLKNK2zkjPJeZIDwd3sd73/Pmik5CQfwLkbvzBNq7KOgPXTKVpT D1RnxXJ1zP9TIbQn+7lHtTzv44WLw/CpfuirXf/LhJn9QciXeBtWJWikod6QP+sRiRQq0eDR T9COQuLmCcmR71TFQ0wljDmr7h4= X-Mailgun-Sending-Ip: 69.72.43.15 X-Mailgun-Sid: WyI3YTAwOSIsICJsaW51eC13aXJlbGVzc0B2Z2VyLmtlcm5lbC5vcmciLCAiYmU5ZTRhIl0= Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n01.prod.us-east-1.postgun.com with SMTP id 5fd22b306752249c541f2706 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Thu, 10 Dec 2020 14:05:36 GMT Sender: kvalo=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id D4CA5C43462; Thu, 10 Dec 2020 14:05:35 +0000 (UTC) Received: from potku.adurom.net (88-114-240-156.elisa-laajakaista.fi [88.114.240.156]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: kvalo) by smtp.codeaurora.org (Postfix) with ESMTPSA id A45ADC43461; Thu, 10 Dec 2020 14:05:34 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org A45ADC43461 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=fail smtp.mailfrom=kvalo@codeaurora.org From: Kalle Valo To: ath11k@lists.infradead.org Cc: linux-wireless@vger.kernel.org Subject: [PATCH 5/6] ath11k: pci: disable VDD4BLOW Date: Thu, 10 Dec 2020 16:05:23 +0200 Message-Id: <1607609124-17250-6-git-send-email-kvalo@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1607609124-17250-1-git-send-email-kvalo@codeaurora.org> References: <1607609124-17250-1-git-send-email-kvalo@codeaurora.org> Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Carl Huang It's recommended to disable VDD4BLOW during initialisation. Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1 Signed-off-by: Carl Huang Signed-off-by: Kalle Valo --- drivers/net/wireless/ath/ath11k/pci.c | 10 ++++++++++ drivers/net/wireless/ath/ath11k/pci.h | 3 +++ 2 files changed, 13 insertions(+) diff --git a/drivers/net/wireless/ath/ath11k/pci.c b/drivers/net/wireless/ath/ath11k/pci.c index 064c35052697..818e37c32a85 100644 --- a/drivers/net/wireless/ath/ath11k/pci.c +++ b/drivers/net/wireless/ath/ath11k/pci.c @@ -346,6 +346,15 @@ static void ath11k_pci_clear_all_intrs(struct ath11k_base *ab) ath11k_pci_write32(ab, PCIE_PCIE_INT_ALL_CLEAR, PCIE_INT_CLEAR_ALL); } +static void ath11k_pci_set_wlaon_pwr_ctrl(struct ath11k_base *ab) +{ + u32 val; + + val = ath11k_pci_read32(ab, WLAON_QFPROM_PWR_CTRL_REG); + val &= ~QFPROM_PWR_CTRL_VDD4BLOW_MASK; + ath11k_pci_write32(ab, WLAON_QFPROM_PWR_CTRL_REG, val); +} + static void ath11k_pci_force_wake(struct ath11k_base *ab) { ath11k_pci_write32(ab, PCIE_SOC_WAKE_PCIE_LOCAL_REG, 1); @@ -357,6 +366,7 @@ static void ath11k_pci_sw_reset(struct ath11k_base *ab, bool power_on) if (power_on) { ath11k_pci_enable_ltssm(ab); ath11k_pci_clear_all_intrs(ab); + ath11k_pci_set_wlaon_pwr_ctrl(ab); ath11k_pci_fix_l1ss(ab); } diff --git a/drivers/net/wireless/ath/ath11k/pci.h b/drivers/net/wireless/ath/ath11k/pci.h index 6e7cc8904c3d..0432a702416b 100644 --- a/drivers/net/wireless/ath/ath11k/pci.h +++ b/drivers/net/wireless/ath/ath11k/pci.h @@ -45,6 +45,9 @@ #define PCIE_USB3_PCS_MISC_OSC_DTCT_CONFIG4_VAL 0xff #define PCIE_USB3_PCS_MISC_OSC_DTCT_CONFIG_MSK 0x000000ff +#define WLAON_QFPROM_PWR_CTRL_REG 0x01f8031c +#define QFPROM_PWR_CTRL_VDD4BLOW_MASK 0x4 + struct ath11k_msi_user { char *name; int num_vectors; -- 2.7.4