From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 4A125402428; Thu, 9 Jul 2026 09:18:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783588717; cv=none; b=V0+2Yd7H7HZIDT2AAr68K3eblhsAuyBiHcu7Xaufm3Ba1uR/mOoXZao6uTiQjc2Y3kZF1St1QNIyIBMqVsApR8R2hET6BDnabG30Z/JrhA8mW5C3my0zAOPEK198MG32k4gajtCnacH3TpeYyXDgQOSjOcaMx5WBYlOph7qRlG8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783588717; c=relaxed/simple; bh=UoFIcZbz1LUD4F5XO7XFPgbRLJ5n0BlyYnghXViYBkI=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=FqkoIIGtl+g3S1jbvdtFfKDUzwjbbV2oYMNaq8c97Z0Ipnrn8/VdyDX68IX/xtENY98/hs59epfmH4p37NPkPauRCCGC2gYa8tn9cbGOwVRNB9ZPwEGcLKCzJF6GjTc6T/V5AFdRk0owg4bgup1qZ2tBttFjrdMvwnkhjMvmmRI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=FdS3QyIS; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="FdS3QyIS" Received: by smtp.kernel.org (Postfix) with ESMTPS id 73B77C2BCF6; Thu, 9 Jul 2026 09:18:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1783588716; bh=UoFIcZbz1LUD4F5XO7XFPgbRLJ5n0BlyYnghXViYBkI=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=FdS3QyIS3dLSwHkK5r5dZsiZzNP+dqTMRMdnQZYGV62uWdFuRfSAYzcQHzp6UwKro NZj850h8bd8lKSbU3uUWfxEak+A5xTYJHGO4YffOSt/d+vuhxQuAqCai+ZyZSXlOMI 5426cO5ZSybDqH2TnfkY+4+qEhpuIRfc1zDGQoMosf7LjM6WzpNeECzw8JcfmaXuXI iDsSljAzn0U3/bomMFQMGG0uSIrQtuc0oLErFN/lKcK/LrLz54DJ6GFiajCKfJjzUI splS3cUgDxXE40o80lKRYrzlvd++OFTWB6TE7r/bHDnB/0UMFR4l6clz+ES7XimOGS ziLO7c/e0P/FA== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 59FDAC44507; Thu, 9 Jul 2026 09:18:36 +0000 (UTC) From: George Moussalem via B4 Relay Date: Thu, 09 Jul 2026 13:18:29 +0400 Subject: [PATCH v5 3/6] firmware: qcom: scm: Add support for setting Bluetooth power modes Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260709-ipq5018-bluetooth-v5-3-e476c41f03b8@outlook.com> References: <20260709-ipq5018-bluetooth-v5-0-e476c41f03b8@outlook.com> In-Reply-To: <20260709-ipq5018-bluetooth-v5-0-e476c41f03b8@outlook.com> To: Bartosz Golaszewski , Marcel Holtmann , Luiz Augusto von Dentz , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Konrad Dybcio , Philipp Zabel Cc: linux-arm-msm@vger.kernel.org, linux-bluetooth@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, George Moussalem , Bartosz Golaszewski , Konrad Dybcio , Dmitry Baryshkov X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1783588713; l=3620; i=george.moussalem@outlook.com; s=20250321; h=from:subject:message-id; bh=u0gOwnns2dy73DhacPBFtWDJn2o2hoZyiU32Aiq9TKY=; b=QSmixR6PelWGtteCHARWekHulHjLopZMK/Y9DdAws/h8+kj+B0qJvFI+JAuh+vd95v4s2Nigk 8NPNEXqFqv1A+qJymHg6+KwQCYw1wyxgncP8HpaImsph50QjyHYhtcF X-Developer-Key: i=george.moussalem@outlook.com; a=ed25519; pk=/PuRTSI9iYiHwcc6Nrde8qF4ZDhJBlUgpHdhsIjnqIk= X-Endpoint-Received: by B4 Relay for george.moussalem@outlook.com/20250321 with auth_id=364 X-Original-From: George Moussalem Reply-To: george.moussalem@outlook.com From: George Moussalem The Bluetooth subsystem (BTSS) on the IPQ5018 SoC supports setting power modes which are required to be configured through a Secure Channel Manager (SCM) call to TrustZone. However, not all Trusted Execution Environment (QSEE) images support this call, so first check if the call is available. Reviewed-by: Bartosz Golaszewski Reviewed-by: Konrad Dybcio Reviewed-by: Dmitry Baryshkov Signed-off-by: George Moussalem --- drivers/firmware/qcom/qcom_scm.c | 44 ++++++++++++++++++++++++++++++++++ drivers/firmware/qcom/qcom_scm.h | 1 + include/linux/firmware/qcom/qcom_scm.h | 1 + 3 files changed, 46 insertions(+) diff --git a/drivers/firmware/qcom/qcom_scm.c b/drivers/firmware/qcom/qcom_scm.c index 9b06a69d3a6d..d51e3f4339d8 100644 --- a/drivers/firmware/qcom/qcom_scm.c +++ b/drivers/firmware/qcom/qcom_scm.c @@ -1094,6 +1094,50 @@ bool qcom_scm_pas_supported(u32 pas_id) } EXPORT_SYMBOL_GPL(qcom_scm_pas_supported); +/** + * qcom_scm_pas_set_bluetooth_power_mode() - Configure power mode for the + * Bluetooth subsystem (BTSS) + * @pas_id: peripheral authentication service id + * @eco_mode: true for ECO mode, false for normal operation + * + * Return: 0 on success, negative errno on failure. + * Returns -EOPNOTSUPP if the firmware configuration call is unavailable. + */ +int qcom_scm_pas_set_bluetooth_power_mode(u32 pas_id, bool eco_mode) +{ + struct qcom_scm_desc desc = { + .svc = QCOM_SCM_SVC_PIL, + .cmd = QCOM_SCM_PIL_PAS_BT_PWR_MODE, + .arginfo = QCOM_SCM_ARGS(2), + .args[0] = pas_id, + .args[1] = eco_mode ? 0x4 : 0x0, + .owner = ARM_SMCCC_OWNER_SIP, + }; + struct qcom_scm_res res; + int ret; + + if (!__qcom_scm_is_call_available(__scm->dev, QCOM_SCM_SVC_PIL, + QCOM_SCM_PIL_PAS_BT_PWR_MODE)) + return -EOPNOTSUPP; + + ret = qcom_scm_clk_enable(); + if (ret) + return ret; + + ret = qcom_scm_bw_enable(); + if (ret) + goto disable_clk; + + ret = qcom_scm_call(__scm->dev, &desc, &res); + qcom_scm_bw_disable(); + +disable_clk: + qcom_scm_clk_disable(); + + return ret ? : res.result[0]; +} +EXPORT_SYMBOL_GPL(qcom_scm_pas_set_bluetooth_power_mode); + static int __qcom_scm_pas_mss_reset(struct device *dev, bool reset) { struct qcom_scm_desc desc = { diff --git a/drivers/firmware/qcom/qcom_scm.h b/drivers/firmware/qcom/qcom_scm.h index caab80a73e17..5579df5a2aca 100644 --- a/drivers/firmware/qcom/qcom_scm.h +++ b/drivers/firmware/qcom/qcom_scm.h @@ -105,6 +105,7 @@ int qcom_scm_shm_bridge_enable(struct device *scm_dev); #define QCOM_SCM_PIL_PAS_SHUTDOWN 0x06 #define QCOM_SCM_PIL_PAS_IS_SUPPORTED 0x07 #define QCOM_SCM_PIL_PAS_MSS_RESET 0x0a +#define QCOM_SCM_PIL_PAS_BT_PWR_MODE 0x21 #define QCOM_SCM_PIL_PAS_GET_RSCTABLE 0x21 #define QCOM_SCM_SVC_IO 0x05 diff --git a/include/linux/firmware/qcom/qcom_scm.h b/include/linux/firmware/qcom/qcom_scm.h index 5747bd191bf1..aca937ac8ddd 100644 --- a/include/linux/firmware/qcom/qcom_scm.h +++ b/include/linux/firmware/qcom/qcom_scm.h @@ -93,6 +93,7 @@ struct resource_table *qcom_scm_pas_get_rsc_table(struct qcom_scm_pas_context *c size_t *output_rt_size); int qcom_scm_pas_prepare_and_auth_reset(struct qcom_scm_pas_context *ctx); +int qcom_scm_pas_set_bluetooth_power_mode(u32 pas_id, bool eco_mode); int qcom_scm_io_readl(phys_addr_t addr, unsigned int *val); int qcom_scm_io_writel(phys_addr_t addr, unsigned int val); -- 2.53.0