From patchwork Wed Aug 31 05:18:21 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Akhil P Oommen X-Patchwork-Id: 12960409 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 DE52DECAAD3 for ; Wed, 31 Aug 2022 05:19:54 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 3A57610E1B6; Wed, 31 Aug 2022 05:19:36 +0000 (UTC) Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) by gabe.freedesktop.org (Postfix) with ESMTPS id 88EBD10E191; Wed, 31 Aug 2022 05:19:14 +0000 (UTC) Received: from pps.filterd (m0279869.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 27V2HRWn012337; Wed, 31 Aug 2022 05:19:01 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id : mime-version : content-type; s=qcppdkim1; bh=NjAqZ3QhtI/ZqQcKoVQ+P6AxCSkVITmaI0m/xYMMmA0=; b=IuiAPXMN80RDgz+MdrWMTqC4DnF3E9Cw7KcnVQwRXb1sokrRUkLjEScUfalb4lFY5q9b CaUlAULfcqHWwUTwFrz83R+Y+tTIx93xWDbD+zWxIjZabAdAAJ7ACHh/DBVRsAFUCeFf 8VoTTBBMXYHBZYWY9nnLEmccJiP5vnR+WS3hUVuGFwFWNGzHcv+4CLtpleou+a6sRCMf 8bwV2wos4GBmzFLrI/Wj43JPiC9VB5eRoClwMo6SOGajF2Fwn7D9gqKb1Izv3cRJozJ4 WNAqXB/MKpAX2IyxQ6iflpGJhYsuEimyR7VE1fFdekzWlyCDYvQ4wrNFwRYjbMgIR6yF Zw== Received: from nalasppmta03.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3j9txbh834-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 31 Aug 2022 05:19:01 +0000 Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA03.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 27V5J0TG015884 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 31 Aug 2022 05:19:00 GMT Received: from hyd-lnxbld559.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 15.2.986.29; Tue, 30 Aug 2022 22:18:53 -0700 From: Akhil P Oommen To: freedreno , , , Rob Clark , Bjorn Andersson , "Stephen Boyd" , Dmitry Baryshkov , Philipp Zabel Subject: [PATCH v6 0/6] clk/qcom: Support gdsc collapse polling using 'reset' interface Date: Wed, 31 Aug 2022 10:48:21 +0530 Message-ID: <1661923108-789-1-git-send-email-quic_akhilpo@quicinc.com> X-Mailer: git-send-email 2.7.4 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) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: wNq8ePCvrbpW_Btfp7sFjXeQVlAiZrdc X-Proofpoint-ORIG-GUID: wNq8ePCvrbpW_Btfp7sFjXeQVlAiZrdc X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.895,Hydra:6.0.517,FMLib:17.11.122.1 definitions=2022-08-31_03,2022-08-30_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 suspectscore=0 adultscore=0 mlxlogscore=999 phishscore=0 spamscore=0 malwarescore=0 impostorscore=0 lowpriorityscore=0 priorityscore=1501 mlxscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2207270000 definitions=main-2208310025 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Krzysztof Kozlowski , Akhil P Oommen , linux-kernel@vger.kernel.org, Michael Turquette , Konrad Dybcio , Douglas Anderson , Rob Herring , Abhinav Kumar , David Airlie , krzysztof.kozlowski@linaro.org, Andy Gross , Stephen Boyd , Sean Paul , linux-clk@vger.kernel.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Some clients like adreno gpu driver would like to ensure that its gdsc is collapsed at hardware during a gpu reset sequence. This is because it has a votable gdsc which could be ON due to a vote from another subsystem like tz, hyp etc or due to an internal hardware signal. To allow this, gpucc driver can expose an interface to the client driver using reset framework. Using this the client driver can trigger a polling within the gdsc driver. This series is rebased on top of linus's master branch. Related discussion: https://patchwork.freedesktop.org/patch/493144/ Changes in v6: - No code changes in this version. Just captured the Acked-by tags Changes in v5: - Nit: Remove a duplicate blank line (Krzysztof) Changes in v4: - Update gpu dt-binding schema - Typo fix in commit text Changes in v3: - Use pointer to const for "struct qcom_reset_ops" in qcom_reset_map (Krzysztof) Changes in v2: - Return error when a particular custom reset op is not implemented. (Dmitry) Akhil P Oommen (6): dt-bindings: clk: qcom: Support gpu cx gdsc reset clk: qcom: Allow custom reset ops clk: qcom: gdsc: Add a reset op to poll gdsc collapse clk: qcom: gpucc-sc7280: Add cx collapse reset support dt-bindings: drm/msm/gpu: Add optional resets arm64: dts: qcom: sc7280: Add Reset support for gpu .../devicetree/bindings/display/msm/gpu.yaml | 6 +++++ arch/arm64/boot/dts/qcom/sc7280.dtsi | 3 +++ drivers/clk/qcom/gdsc.c | 23 ++++++++++++++---- drivers/clk/qcom/gdsc.h | 7 ++++++ drivers/clk/qcom/gpucc-sc7280.c | 10 ++++++++ drivers/clk/qcom/reset.c | 27 ++++++++++++++++++++++ drivers/clk/qcom/reset.h | 8 +++++++ include/dt-bindings/clock/qcom,gpucc-sc7280.h | 3 +++ 8 files changed, 83 insertions(+), 4 deletions(-)