From patchwork Mon Dec 9 16:56:43 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Raj Kumar Bhagat X-Patchwork-Id: 850093 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B52FE222D7F; Mon, 9 Dec 2024 16:57:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.180.131 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733763477; cv=none; b=kwzrv7D5njW7oMY0yWdVVsT5Kri7+3KPTwQxz/CJrwqhiFkrs785jDov2dmwHmCQNk0+SIA2J021EXY9AtnkEEsVqMnYGkGHlQMKPtQ1sT4VgAqh74Od+FA2FGX7I7FghfBwtxTYuw8fLU+nApxU014ITwJApMYU2oWE2qkkWMs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733763477; c=relaxed/simple; bh=46cKztNvjKVzLCcfaZpSSbCkjfmUrwT92nofQHILC1U=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=itgXPoGHrBs/qZa9DNRgdRBCErRFQpi4YHSRKK43TRphxw6PbQ7PaUocaeP8sRWG6znG03mv6A6B35LPmM/l2klEaliRxkAKZJJQ2G1jOyiLxdjxMQknWSAlV8KlypNolyr/5Co3O0XSASGKEq40UV5ZrHqaZhKkPcqJhbN90DU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com; spf=pass smtp.mailfrom=quicinc.com; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b=QegjKgxx; arc=none smtp.client-ip=205.220.180.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=quicinc.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b="QegjKgxx" Received: from pps.filterd (m0279869.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 4B9ADATk010451; Mon, 9 Dec 2024 16:57:50 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=qcppdkim1; bh= RNYCPST5Q7p+eNTy2KO0eHFwqslchPquuKid2rBAGZ4=; b=QegjKgxxKSYp3b8s qTpDqgmQBsoSZrEeiHMzyJjTk1KO0jVJ7IxJ7FNIynNz4t4vkTvP24Cs4FjrR6n7 z0blZeML/+hJjslnZ8hNuEt418u1/D0cdNVr6VNCscrpF5DwlsZeGShrVpuAeinv 135QgcnbRtQUR+JhumSyzKz3w4JoYpvyh/1v2ZSqIPKGAZU/9OZVtJ4dIFR6QcCF Bdc6BVuskW5thSCnkHLnEuXVNsGlSvPBOVtDydooJFf/dUgB8zXxUdCv49noEQBo qqtlXhGu1TzPyt/U8cDLPBhCes7Fz3x3lwdEAKZic+wn+BRADpZeu8LapPwZTyx4 u3t09Q== Received: from nalasppmta04.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 43cdc6dnub-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 09 Dec 2024 16:57:50 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA04.qualcomm.com (8.18.1.2/8.18.1.2) with ESMTPS id 4B9Gvnot023018 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 9 Dec 2024 16:57:49 GMT Received: from hu-rajkbhag-blr.qualcomm.com (10.80.80.8) by nalasex01b.na.qualcomm.com (10.47.209.197) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.9; Mon, 9 Dec 2024 08:57:46 -0800 From: Raj Kumar Bhagat To: CC: , Kalle Valo , "Rob Herring" , Krzysztof Kozlowski , "Conor Dooley" , Jeff Johnson , , Sowmiya Sree Elavalagan , Raj Kumar Bhagat Subject: [PATCH v3 12/13] wifi: ath12k: Power down userPD Date: Mon, 9 Dec 2024 22:26:43 +0530 Message-ID: <20241209165644.1680167-13-quic_rajkbhag@quicinc.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241209165644.1680167-1-quic_rajkbhag@quicinc.com> References: <20241209165644.1680167-1-quic_rajkbhag@quicinc.com> Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nalasex01b.na.qualcomm.com (10.47.209.197) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: ZfYrnKtCPzNnLjtVI_XEVUh-IxtvxUhc X-Proofpoint-GUID: ZfYrnKtCPzNnLjtVI_XEVUh-IxtvxUhc X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.60.29 definitions=2024-09-06_09,2024-09-06_01,2024-09-02_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 mlxscore=0 mlxlogscore=999 malwarescore=0 bulkscore=0 lowpriorityscore=0 clxscore=1015 suspectscore=0 spamscore=0 phishscore=0 priorityscore=1501 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2411120000 definitions=main-2412090132 From: Sowmiya Sree Elavalagan Set the stop bit in SMEM to power down the userPD. Wait for stop-ack IRQ to indicate power down completion. Release the userPD firmware using its peripheral ID. Tested-on: IPQ5332 hw1.0 AHB WLAN.WBE.1.3.1-00130-QCAHKSWPL_SILICONZ-1 Signed-off-by: Sowmiya Sree Elavalagan Signed-off-by: Raj Kumar Bhagat --- drivers/net/wireless/ath/ath12k/ahb.c | 30 +++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/drivers/net/wireless/ath/ath12k/ahb.c b/drivers/net/wireless/ath/ath12k/ahb.c index 74d10af6591f..1015b422e263 100644 --- a/drivers/net/wireless/ath/ath12k/ahb.c +++ b/drivers/net/wireless/ath/ath12k/ahb.c @@ -477,6 +477,34 @@ static int ath12k_ahb_power_up(struct ath12k_base *ab) return ret; } +static void ath12k_ahb_power_down(struct ath12k_base *ab, bool is_suspend) +{ + struct ath12k_ahb *ab_ahb = ath12k_ab_to_ahb(ab); + unsigned long time_left; + u32 pasid; + int ret; + + qcom_smem_state_update_bits(ab_ahb->stop_state, BIT(ab_ahb->stop_bit), + BIT(ab_ahb->stop_bit)); + + time_left = wait_for_completion_timeout(&ab_ahb->userpd_stopped, + ATH12K_USERPD_STOP_TIMEOUT); + if (!time_left) { + ath12k_err(ab, "UserPD stop wait timed out\n"); + return; + } + + qcom_smem_state_update_bits(ab_ahb->stop_state, BIT(ab_ahb->stop_bit), 0); + + pasid = (u32_encode_bits(ab_ahb->userpd_id, ATH12K_USERPD_ID_MASK)) | + ATH12K_AHB_UPD_SWID; + /* Release the firmware */ + ret = qcom_scm_pas_shutdown(pasid); + if (ret) + ath12k_err(ab, "scm pas shutdown failed for userPD%d\n", + ab_ahb->userpd_id); +} + static void ath12k_ahb_init_qmi_ce_config(struct ath12k_base *ab) { struct ath12k_qmi_ce_cfg *cfg = &ab->qmi.ce_cfg; @@ -695,6 +723,7 @@ static const struct ath12k_hif_ops ath12k_ahb_hif_ops_ipq5332 = { .irq_disable = ath12k_ahb_ext_irq_disable, .map_service_to_pipe = ath12k_ahb_map_service_to_pipe, .power_up = ath12k_ahb_power_up, + .power_down = ath12k_ahb_power_down, }; static irqreturn_t ath12k_userpd_irq_handler(int irq, void *data) @@ -1173,6 +1202,7 @@ static void ath12k_ahb_remove(struct platform_device *pdev) struct ath12k_base *ab = platform_get_drvdata(pdev); if (test_bit(ATH12K_FLAG_QMI_FAIL, &ab->dev_flags)) { + ath12k_ahb_power_down(ab, false); ath12k_qmi_deinit_service(ab); goto qmi_fail; }