From patchwork Thu Jun 9 14:30:22 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Srinivasa Rao Mandadapu X-Patchwork-Id: 12875673 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 alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C9F9CC433EF for ; Thu, 9 Jun 2022 14:32:32 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 19F2118B4; Thu, 9 Jun 2022 16:31:41 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 19F2118B4 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1654785151; bh=+Wf5k1oEAc9hRw4mjGH+C7J9PI5dMmgABKWgGgn6lQw=; h=From:To:Subject:Date:In-Reply-To:References:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=XSrb7m3ufHmJ4rR3++dgkFUw18BZ1MEfNAWAkwwWzHGmdpur8/k+4n7Yk95QnONZG HiytJ1k8um1Ej7R+rrJYVTvyomqumi/BWNZfAy/Srx6i29c+DCjnbfgVGMn6uu7gEm +b021kh1A2QMwj9lVupOP9UpoHG6Je01zwMfJ47M= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 1FD86F8052D; Thu, 9 Jun 2022 16:31:05 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 5AB49F8052E; Thu, 9 Jun 2022 16:31:03 +0200 (CEST) Received: from alexa-out.qualcomm.com (alexa-out.qualcomm.com [129.46.98.28]) (using TLSv1.2 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 20967F80526 for ; Thu, 9 Jun 2022 16:30:52 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 20967F80526 Authentication-Results: alsa1.perex.cz; dkim=pass (1024-bit key) header.d=quicinc.com header.i=@quicinc.com header.b="cV829kzK" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1654785058; x=1686321058; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=kmoC+nXywh3ocMFYyWJ/csDqJ2rosniO4o5Q/F/Ld1o=; b=cV829kzKfyJsJmkt+eSzptC7DWaRLFH8Hv1w15OvfI8WMmEeOjV+x0c+ qWHjeVe7N/nPo9ijLGTdfS2kVGIRTVFFPSYZiUTrRsD/1aixtZdaDxJtn axF04CtqX69sqyKf9wDsfw4JvNlcyy+4SafG56gY1oCW1HuK6yFthKfqE M=; Received: from ironmsg08-lv.qualcomm.com ([10.47.202.152]) by alexa-out.qualcomm.com with ESMTP; 09 Jun 2022 07:30:50 -0700 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg08-lv.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Jun 2022 07:30:50 -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; Thu, 9 Jun 2022 07:30:49 -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; Thu, 9 Jun 2022 07:30:43 -0700 From: Srinivasa Rao Mandadapu To: , , , , , , , , , , , , , , , , , Subject: [PATCH v4 1/2] soundwire: qcom: Add flag for software clock gating check Date: Thu, 9 Jun 2022 20:00:22 +0530 Message-ID: <1654785023-1667-2-git-send-email-quic_srivasam@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1654785023-1667-1-git-send-email-quic_srivasam@quicinc.com> References: <1654785023-1667-1-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) Cc: Srinivasa Rao Mandadapu X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" 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 data 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 | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/drivers/soundwire/qcom.c b/drivers/soundwire/qcom.c index a3fccf0..8e163da 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; }; static const struct qcom_swrm_data swrm_v1_3_data = { @@ -1311,6 +1312,15 @@ static int qcom_swrm_probe(struct platform_device *pdev) return PTR_ERR(ctrl->mmio); } + if (data->sw_clk_gate_required) { + ctrl->audio_cgcr = devm_reset_control_get_exclusive(dev, "swr_audio_cgcr"); + if (IS_ERR(ctrl->audio_cgcr)) { + dev_err(dev, "Failed to get cgcr reset ctrl required for SW gating\n"); + ret = PTR_ERR(ctrl->audio_cgcr); + goto err_init; + } + } + ctrl->irq = of_irq_get(dev->of_node, 0); if (ctrl->irq < 0) { ret = ctrl->irq; @@ -1336,10 +1346,6 @@ static int qcom_swrm_probe(struct platform_device *pdev) ctrl->bus.compute_params = &qcom_swrm_compute_params; ctrl->bus.clk_stop_timeout = 300; - ctrl->audio_cgcr = devm_reset_control_get_exclusive(dev, "swr_audio_cgcr"); - if (IS_ERR(ctrl->audio_cgcr)) - dev_err(dev, "Failed to get audio_cgcr reset required for soundwire-v1.6.0\n"); - ret = qcom_swrm_get_port_config(ctrl); if (ret) goto err_clk;