From patchwork Thu Sep 14 06:59:50 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kathiravan Thirumoorthy X-Patchwork-Id: 13384691 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 59B18EDE98A for ; Thu, 14 Sep 2023 07:00:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233244AbjINHAg (ORCPT ); Thu, 14 Sep 2023 03:00:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42952 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232465AbjINHAf (ORCPT ); Thu, 14 Sep 2023 03:00:35 -0400 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B45F8CE5; Thu, 14 Sep 2023 00:00:31 -0700 (PDT) Received: from pps.filterd (m0279867.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 38E6ohHl016670; Thu, 14 Sep 2023 07:00:18 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : subject : date : message-id : mime-version : content-type : content-transfer-encoding : to : cc; s=qcppdkim1; bh=u4EY5mYqhVxu6XA4m47wpl80mCwYKaw5E80Ja/QRAOQ=; b=HTGn4sO93wD9X+l8bZR4m23vCQGHS6nIfQHSpNwlTGCbpL6dS8WUaQ6NHIlDffdTcMvo E2Gp7H4jTzYyBt75TEZgRk5QTRleWGqy8oNwcz+6q4XqU3ECLR95R8VqPsHDLo4dLvtM o5BHuMrfX0T/p9pzD7QY7+KQjJES8v0YuO5C2taPStOze8i9JDaTldr4GXVbN9y8/rbc hR90aRSxTDT+4qtq3UR+6VUT0pCOW1J9oP4SFQAJK0HMzjc/qbKZwxct7/1RvO0Xcb6m TvsLJ/bbS4uZtg4pRTWfTRuqSoVp01Qo8k1COsIUF1oxmDfFrq0O9eu65oxQTUoIDNU8 CQ== Received: from nalasppmta02.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3t3ar3jmuj-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 14 Sep 2023 07:00:17 +0000 Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA02.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 38E70GOU003614 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 14 Sep 2023 07:00:16 GMT Received: from hu-kathirav-blr.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 15.2.1118.36; Thu, 14 Sep 2023 00:00:10 -0700 From: Kathiravan Thirumoorthy Subject: [PATCH v2 00/11] Add GPLL0 as clock provider for the Qualcomm's IPQ mailbox controller Date: Thu, 14 Sep 2023 12:29:50 +0530 Message-ID: <20230913-gpll_cleanup-v2-0-c8ceb1a37680@quicinc.com> MIME-Version: 1.0 X-B4-Tracking: v=1; b=H4sIAGavAmUC/1WNyw6CMBBFf4XM2po+MIIr/8MQU9oBJoEWWyAaw r9biBuX596cnBUiBsIIt2yFgAtF8i6BPGVgOu1aZGQTg+RS8VIo1o59/zQ9ajeP7GK5VqrE2oo rJKXWEVkdtDPdLg06Thj2YwzY0PvoPKrEHcXJh8+RXcS+/go8/y8sgnFmUZo8LxohiuL+msmQM 2fjB6i2bfsCkAqpOsMAAAA= To: Andy Gross , Bjorn Andersson , Konrad Dybcio , Michael Turquette , Stephen Boyd , "Sricharan Ramabadhran" , Gokul Sriram Palanisamy , Varadarajan Narayanan , Anusha Rao , Devi Priya , Jassi Brar , Rob Herring , Krzysztof Kozlowski , Conor Dooley CC: , , , , "Kathiravan Thirumoorthy" , , "Krzysztof Kozlowski" , Robert Marko X-Mailer: b4 0.12.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1694674810; l=3776; i=quic_kathirav@quicinc.com; s=20230906; h=from:subject:message-id; bh=UDcuJGx9NCUsK6VJ+WDZmeZGkqWFuIL5bDHorMUBT7w=; b=RvFT2F3/EuAq/fIY1A1wU9WQM8iedTfS7Fb+xf2qTcfVawyAH15/j/uKnJBoQpsu+4PSj7qy8 z5zI1klGQ65ArXFqIR/QVIKD3mh+dL7lRyD1un74WejNb02x0y1yJTa X-Developer-Key: i=quic_kathirav@quicinc.com; a=ed25519; pk=xWsR7pL6ch+vdZ9MoFGEaP61JUaRf0XaZYWztbQsIiM= 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) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: QV2GkuNJ3fK1hPvw1x94YvmTR3bWHQju X-Proofpoint-ORIG-GUID: QV2GkuNJ3fK1hPvw1x94YvmTR3bWHQju X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.980,Hydra:6.0.601,FMLib:17.11.176.26 definitions=2023-09-14_03,2023-09-13_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 mlxlogscore=999 spamscore=0 clxscore=1011 priorityscore=1501 impostorscore=0 mlxscore=0 lowpriorityscore=0 suspectscore=0 phishscore=0 adultscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2308100000 definitions=main-2309140062 Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org Currently mailbox controller takes the XO and APSS PLL as the input. It can take the GPLL0 also as an input. This patch series adds the same and fixes the issue caused by this. Once the cpufreq driver is up, it tries to bump up the cpu frequency above 800MHz, while doing so system is going to unusable state. Reason being, with the GPLL0 included as clock source, clock framework tries to achieve the required rate with the possible parent and since GPLL0 carries the CLK_SET_RATE_PARENT flag, clock rate of the GPLL0 is getting changed, causing the issue. First half of the series, removes the CLK_SET_RATE_PARENT flag from the PLL clocks since the PLL clock rates shouldn't be changed. Another half, add the necessary support to include the GPLL0 as clock provider for mailbox and accomodate the changes in APSS clock driver. This is also the preparatory series to enable the CPUFreq on IPQ5332 SoC. Dynamic scaling of CPUFreq is not supported on IPQ5332, so to switch between the frequencies we need to park the APSS PLL in safe source, here it is GPLL0 and then shutdown and bring up the APSS PLL in the desired rate. For IPQ5332 SoC, this series depends on the below patch https://lore.kernel.org/linux-arm-msm/1693474133-10467-1-git-send-email-quic_varada@quicinc.com/ Signed-off-by: Kathiravan Thirumoorthy --- Changes in v2: - included the patch to drop the CLK_SET_RATE_PARENT from IPQ5018 GCC driver - Splitted the DTS changes per target - For IPQ8074 and IPQ6018 keep the CLK_SET_RATE_PARENT for UBI32 PLL since the PLL clock rates can be changed - Pick up the tags in the relevant patches - Link to v1: https://lore.kernel.org/r/20230904-gpll_cleanup-v1-0-de2c448f1188@quicinc.com --- Kathiravan Thirumoorthy (11): clk: qcom: ipq8074: drop the CLK_SET_RATE_PARENT flag from PLL clocks clk: qcom: ipq6018: drop the CLK_SET_RATE_PARENT flag from PLL clocks clk: qcom: ipq5018: drop the CLK_SET_RATE_PARENT flag from GPLL clocks clk: qcom: ipq9574: drop the CLK_SET_RATE_PARENT flag from GPLL clocks clk: qcom: ipq5332: drop the CLK_SET_RATE_PARENT flag from GPLL clocks dt-bindings: mailbox: qcom: add one more clock provider for IPQ mailbox clk: qcom: apss-ipq6018: add the GPLL0 clock also as clock provider arm64: dts: qcom: ipq8074: include the GPLL0 as clock provider for mailbox arm64: dts: qcom: ipq6018: include the GPLL0 as clock provider for mailbox arm64: dts: qcom: ipq9574: include the GPLL0 as clock provider for mailbox arm64: dts: qcom: ipq5332: include the GPLL0 as clock provider for mailbox .../devicetree/bindings/mailbox/qcom,apcs-kpss-global.yaml | 2 ++ arch/arm64/boot/dts/qcom/ipq5332.dtsi | 4 ++-- arch/arm64/boot/dts/qcom/ipq6018.dtsi | 4 ++-- arch/arm64/boot/dts/qcom/ipq8074.dtsi | 4 ++-- arch/arm64/boot/dts/qcom/ipq9574.dtsi | 4 ++-- drivers/clk/qcom/apss-ipq6018.c | 3 +++ drivers/clk/qcom/gcc-ipq5018.c | 3 --- drivers/clk/qcom/gcc-ipq5332.c | 2 -- drivers/clk/qcom/gcc-ipq6018.c | 6 ------ drivers/clk/qcom/gcc-ipq8074.c | 6 ------ drivers/clk/qcom/gcc-ipq9574.c | 4 ---- 11 files changed, 13 insertions(+), 29 deletions(-) --- base-commit: e143016b56ecb0fcda5bb6026b0a25fe55274f56 change-id: 20230913-gpll_cleanup-5d0a339ebd17 Best regards,