From nobody Tue Apr 28 02:37:18 2026 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 C9142C43334 for ; Wed, 8 Jun 2022 07:16:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243068AbiFHHM5 (ORCPT ); Wed, 8 Jun 2022 03:12:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51484 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1353003AbiFHGQZ (ORCPT ); Wed, 8 Jun 2022 02:16:25 -0400 Received: from alexa-out.qualcomm.com (alexa-out.qualcomm.com [129.46.98.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6EAEB128C2E; Tue, 7 Jun 2022 22:57:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1654667852; x=1686203852; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=TRO3yMYxgaq8AuJJz5Yh1/P8fYb+bn8NnBoj5lR68G4=; b=OdDWAe+vFg33YKBz6m5XSX3U3JoQy+15OLXb/ETYXCPv2lfQV7qevmBx o/D0+Q6oP8ComIiFlJd/5yo6X/dL+5+L1pN80RJhqaO5SB1I4AdRcB6GK E0k1bCX3yuXjiDQKwd6Sj7fSb6K8daLKGlAfGgTAglW4iiGjqYc6K4DVw U=; Received: from ironmsg-lv-alpha.qualcomm.com ([10.47.202.13]) by alexa-out.qualcomm.com with ESMTP; 07 Jun 2022 22:57:32 -0700 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg-lv-alpha.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Jun 2022 22:57:31 -0700 Received: from nalasex01a.na.qualcomm.com (10.47.209.196) by nasanex01c.na.qualcomm.com (10.47.97.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.22; Tue, 7 Jun 2022 22:57:30 -0700 Received: from hu-srivasam-hyd.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.22; Tue, 7 Jun 2022 22:57:24 -0700 From: Srinivasa Rao Mandadapu To: , , , , , , , , , , , , , , , , , CC: Srinivasa Rao Mandadapu Subject: [PATCH v2 1/2] soundwire: qcom: Add flag for software clock gating check Date: Wed, 8 Jun 2022 11:27:03 +0530 Message-ID: <1654667824-3760-2-git-send-email-quic_srivasam@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1654667824-3760-1-git-send-email-quic_srivasam@quicinc.com> References: <1654667824-3760-1-git-send-email-quic_srivasam@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nalasex01a.na.qualcomm.com (10.47.209.196) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add flag in qcom_swrm_data private data structure for validating software colck gating control requirement. Signed-off-by: Srinivasa Rao Mandadapu Reviewed-by: Srinivas Kandagatla --- drivers/soundwire/qcom.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/soundwire/qcom.c b/drivers/soundwire/qcom.c index a3fccf0..38c3bf5 100644 --- a/drivers/soundwire/qcom.c +++ b/drivers/soundwire/qcom.c @@ -181,6 +181,7 @@ struct qcom_swrm_ctrl { struct qcom_swrm_data { u32 default_cols; u32 default_rows; + bool sw_clk_gate_required; }; =20 static const struct qcom_swrm_data swrm_v1_3_data =3D { --=20 2.7.4 From nobody Tue Apr 28 02:37:18 2026 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 F0C76CCA483 for ; Wed, 8 Jun 2022 07:03:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236725AbiFHHBU (ORCPT ); Wed, 8 Jun 2022 03:01:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53102 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1353013AbiFHGQZ (ORCPT ); Wed, 8 Jun 2022 02:16:25 -0400 Received: from alexa-out-sd-01.qualcomm.com (alexa-out-sd-01.qualcomm.com [199.106.114.38]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CDA6C12DBCE; Tue, 7 Jun 2022 22:57:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1654667858; x=1686203858; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=5rkPqdmhV7ewS1zsGuSZb/biHuI3KnTqJbyZpR2YbNA=; b=ZyuFuIsEDU91DkcTm8agxiVC1pRP0KN/r9yKfe7/DLqchfokjaKxQ5JU ZiHXhWhrNodXlafydts/2/+BF8NIOv+IvcsAD8KkEWb8w+kYD6xJxuwkB aAyCmsm7cndfeVscI7/6GOoIyXRo2DFdLRp9qKq3MZr4gvNAuQQ4oWKQN 8=; Received: from unknown (HELO ironmsg05-sd.qualcomm.com) ([10.53.140.145]) by alexa-out-sd-01.qualcomm.com with ESMTP; 07 Jun 2022 22:57:37 -0700 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg05-sd.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Jun 2022 22:57:37 -0700 Received: from nalasex01a.na.qualcomm.com (10.47.209.196) by nasanex01c.na.qualcomm.com (10.47.97.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.22; Tue, 7 Jun 2022 22:57:36 -0700 Received: from hu-srivasam-hyd.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.22; Tue, 7 Jun 2022 22:57:30 -0700 From: Srinivasa Rao Mandadapu To: , , , , , , , , , , , , , , , , , CC: Srinivasa Rao Mandadapu Subject: [PATCH v2 2/2] ASoC: qcom: soundwire: Add software clock gating requirement check Date: Wed, 8 Jun 2022 11:27:04 +0530 Message-ID: <1654667824-3760-3-git-send-email-quic_srivasam@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1654667824-3760-1-git-send-email-quic_srivasam@quicinc.com> References: <1654667824-3760-1-git-send-email-quic_srivasam@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nalasex01a.na.qualcomm.com (10.47.209.196) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Validate software clock gating required or not and do software clock gating on hclk if soundwire is operational and keep it running by adding flag in private dat structure. This is to avoid conflict between older architectures, where software clock gating is not required and on latest architectues, where software clock gating is mandatory. Signed-off-by: Srinivasa Rao Mandadapu Reviewed-by: Srinivas Kandagatla --- drivers/soundwire/qcom.c | 27 ++++++++++++++++++++------- 1 file changed, 20 insertions(+), 7 deletions(-) diff --git a/drivers/soundwire/qcom.c b/drivers/soundwire/qcom.c index 38c3bf5..930aa93 100644 --- a/drivers/soundwire/qcom.c +++ b/drivers/soundwire/qcom.c @@ -194,6 +194,12 @@ static const struct qcom_swrm_data swrm_v1_5_data =3D { .default_cols =3D 16, }; =20 +static const struct qcom_swrm_data swrm_v1_6_data =3D { + .default_rows =3D 50, + .default_cols =3D 16, + .sw_clk_gate_required =3D 1, +}; + #define to_qcom_sdw(b) container_of(b, struct qcom_swrm_ctrl, bus) =20 static int qcom_swrm_ahb_reg_read(struct qcom_swrm_ctrl *ctrl, int reg, @@ -659,7 +665,8 @@ static int qcom_swrm_init(struct qcom_swrm_ctrl *ctrl) val =3D FIELD_PREP(SWRM_MCP_FRAME_CTRL_BANK_ROW_CTRL_BMSK, ctrl->rows_ind= ex); val |=3D FIELD_PREP(SWRM_MCP_FRAME_CTRL_BANK_COL_CTRL_BMSK, ctrl->cols_in= dex); =20 - reset_control_reset(ctrl->audio_cgcr); + if (ctrl->audio_cgcr) + reset_control_reset(ctrl->audio_cgcr); =20 ctrl->reg_write(ctrl, SWRM_MCP_FRAME_CTRL_BANK_ADDR(0), val); =20 @@ -1312,6 +1319,15 @@ static int qcom_swrm_probe(struct platform_device *p= dev) return PTR_ERR(ctrl->mmio); } =20 + if (data->sw_clk_gate_required) { + ctrl->audio_cgcr =3D devm_reset_control_get_exclusive(dev, "swr_audio_cg= cr"); + if (IS_ERR(ctrl->audio_cgcr)) { + dev_err(dev, "Failed to get cgcr reset ctrl required for SW gating\n"); + ret =3D PTR_ERR(ctrl->audio_cgcr); + goto err_init; + } + } + ctrl->irq =3D of_irq_get(dev->of_node, 0); if (ctrl->irq < 0) { ret =3D ctrl->irq; @@ -1337,10 +1353,6 @@ static int qcom_swrm_probe(struct platform_device *p= dev) ctrl->bus.compute_params =3D &qcom_swrm_compute_params; ctrl->bus.clk_stop_timeout =3D 300; =20 - ctrl->audio_cgcr =3D devm_reset_control_get_exclusive(dev, "swr_audio_cgc= r"); - if (IS_ERR(ctrl->audio_cgcr)) - dev_err(dev, "Failed to get audio_cgcr reset required for soundwire-v1.6= .0\n"); - ret =3D qcom_swrm_get_port_config(ctrl); if (ret) goto err_clk; @@ -1494,7 +1506,8 @@ static int __maybe_unused swrm_runtime_resume(struct = device *dev) qcom_swrm_get_device_status(ctrl); sdw_handle_slave_status(&ctrl->bus, ctrl->status); } else { - reset_control_reset(ctrl->audio_cgcr); + if (ctrl->audio_cgcr) + reset_control_reset(ctrl->audio_cgcr); =20 ctrl->reg_write(ctrl, SWRM_MCP_BUS_CTRL, SWRM_MCP_BUS_CLK_START); ctrl->reg_write(ctrl, SWRM_INTERRUPT_CLEAR, @@ -1559,7 +1572,7 @@ static const struct dev_pm_ops swrm_dev_pm_ops =3D { static const struct of_device_id qcom_swrm_of_match[] =3D { { .compatible =3D "qcom,soundwire-v1.3.0", .data =3D &swrm_v1_3_data }, { .compatible =3D "qcom,soundwire-v1.5.1", .data =3D &swrm_v1_5_data }, - { .compatible =3D "qcom,soundwire-v1.6.0", .data =3D &swrm_v1_5_data }, + { .compatible =3D "qcom,soundwire-v1.6.0", .data =3D &swrm_v1_6_data }, {/* sentinel */}, }; =20 --=20 2.7.4