Message ID | 1669621742-28524-1-git-send-email-quic_srivasam@quicinc.com |
---|---|
State | New |
Headers |
Return-Path: <linux-kernel-owner@vger.kernel.org> Delivered-To: ouuuleilei@gmail.com Received: by 2002:adf:f944:0:0:0:0:0 with SMTP id q4csp5501571wrr; Mon, 28 Nov 2022 00:04:49 -0800 (PST) X-Google-Smtp-Source: AA0mqf4fazZDmPyQV0ht3PuLD9FK/cAThnfT5iDFBdTEyq3+Wt9IdSEG99MQvHTmhOpJxF/0DiLr X-Received: by 2002:a05:6402:cb0:b0:46a:5df2:8d56 with SMTP id cn16-20020a0564020cb000b0046a5df28d56mr21027971edb.238.1669622689231; Mon, 28 Nov 2022 00:04:49 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1669622689; cv=none; d=google.com; s=arc-20160816; b=YzRsD187BbDUz36IDCk/rrSEvs/2SJi6Kd8UJN30HnhxeUa3ValwgNDvowchWFK021 LO8Z+36qLfa4JnZtRj76K+uGaVBJt3PK/WSW7DBO1Ld5Mdie4ds/07ZajXUmLs/hgY4Y OazK7ZpMYHuQ0mjCBjD8K4lrCWktcXm2IHxqpDS4D6acu2bKw2mm2emhtEa7uK4Yt8uO I0Vcr5Eph96kdBRHPFEct6dgnKnmLLpIoHimFnTZQFJ3hd+z8pLcaLD2R6+XmSCmSKVo YAzzcze0cesCn5XQU/GRrYU8ADpdu5vmg/UJrWkHfH8ZA+dIZeB0x2Lgo/sLsU5qMvjc BCTg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:mime-version:message-id:date:subject:cc:to:from :dkim-signature; bh=EvOYNr5YwYsIS+9C2KVrBrkRa6q4/RNX1EkrAtgxSz0=; b=U1UnNwRwgmg94GbdKmTejaSLPXMX74dLvURAkPywhwQYVNFAvQbZ22l3I1vBUGHxyH d1LZWXOE7p2cGPMnKr//qAFD5oGlsJE+jI1cNDm4TzI+MZuqufZmshkm8Y7ZH9UALIt9 +1Wa1zgqSKHWTrhft0TPB44iQpOwYe40UAlXUFJbtIAKqs6k2dkOujA04+IMD2Uz/F6n PPmrRJZQCnG5gl7fjTnuXy9zz9buISbpjKSG07EOGlWhIuKvDbJyFfmoymHF2Vm+KMBS TFEpt14jLtIX43gm1XqwiqQWW0uHze7eT8MVE+OfsUfLZv+i7aycTppPkx3AhxKF0QYq tq4Q== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@quicinc.com header.s=qcppdkim1 header.b=pRMT6liR; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=quicinc.com Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id h11-20020a05640250cb00b00468f9f21c11si9880021edb.245.2022.11.28.00.04.25; Mon, 28 Nov 2022 00:04:49 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@quicinc.com header.s=qcppdkim1 header.b=pRMT6liR; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=quicinc.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229981AbiK1HuN (ORCPT <rfc822;gah0developer@gmail.com> + 99 others); Mon, 28 Nov 2022 02:50:13 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49936 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229509AbiK1HuM (ORCPT <rfc822;linux-kernel@vger.kernel.org>); Mon, 28 Nov 2022 02:50:12 -0500 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7315A958A; Sun, 27 Nov 2022 23:50:10 -0800 (PST) Received: from pps.filterd (m0279862.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 2AS5pvbm013085; Mon, 28 Nov 2022 07:49:21 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=EvOYNr5YwYsIS+9C2KVrBrkRa6q4/RNX1EkrAtgxSz0=; b=pRMT6liRzaCzEJ+gyyAB9TSBPVuSRM2WcXU9/mavI0Kkf4QQqKhYNqhf2GFRiqVxmoJ4 if1wzu6Fb3WewGZxUy6u9a8z8d494yKiKvZBnK9SM4bubVGharcdcvAvcFyiOzk1RYds wAGJ2S5F2ncHHjbjZozbF2KCTC5NVXkJCyWUsMeA+kLcYe4jPE0KFbXHrCpQszCozQrv o6vhHFj0V1NXDQ0WnjFITdHdc2oGJgNsaKASUWZcPQvcUmlKNmEADFltw/OB3eAVhG/n rKuWSoccanMC2q/z9TJuXpNy8RD54Z+yXpEtCcF4dkuDQ09McUfzlUFsUK4DE70m2MVF dg== Received: from nalasppmta05.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3m3bjrkpca-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 28 Nov 2022 07:49:21 +0000 Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA05.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 2AS7nLi5009840 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 28 Nov 2022 07:49:21 GMT 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 15.2.986.36; Sun, 27 Nov 2022 23:49:15 -0800 From: Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com> To: <agross@kernel.org>, <andersson@kernel.org>, <lgirdwood@gmail.com>, <broonie@kernel.org>, <robh+dt@kernel.org>, <quic_plai@quicinc.com>, <bgoswami@quicinc.com>, <perex@perex.cz>, <tiwai@suse.com>, <srinivas.kandagatla@linaro.org>, <quic_rohkumar@quicinc.com>, <linux-arm-msm@vger.kernel.org>, <alsa-devel@alsa-project.org>, <linux-kernel@vger.kernel.org>, <swboyd@chromium.org>, <judyhsiao@chromium.org>, <devicetree@vger.kernel.org> CC: Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com> Subject: [PATCH] ASoC: qcom: lpass-sc7180: Add system suspend/resume PM ops Date: Mon, 28 Nov 2022 13:19:02 +0530 Message-ID: <1669621742-28524-1-git-send-email-quic_srivasam@quicinc.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 Content-Type: text/plain 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-ORIG-GUID: oyKsuhqYmd0bM19Akig8BJRQ_oIBWATw X-Proofpoint-GUID: oyKsuhqYmd0bM19Akig8BJRQ_oIBWATw X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.895,Hydra:6.0.545,FMLib:17.11.122.1 definitions=2022-11-28_06,2022-11-25_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 clxscore=1015 lowpriorityscore=0 phishscore=0 mlxlogscore=999 bulkscore=0 malwarescore=0 impostorscore=0 priorityscore=1501 adultscore=0 mlxscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2210170000 definitions=main-2211280061 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: <linux-kernel.vger.kernel.org> X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1750726280831564885?= X-GMAIL-MSGID: =?utf-8?q?1750726280831564885?= |
Series |
ASoC: qcom: lpass-sc7180: Add system suspend/resume PM ops
|
|
Commit Message
Srinivasa Rao Mandadapu
Nov. 28, 2022, 7:49 a.m. UTC
Update lpass sc7180 platform driver with PM ops, such as system supend and resume callbacks. This update is required to disable clocks during supend and avoid XO shutdown issue. Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com> Tested-by: Rahul Ajmeriya <quic_rajmeriy@quicinc.com> --- sound/soc/qcom/lpass-sc7180.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+)
Comments
On Mon, 28 Nov 2022 13:19:02 +0530, Srinivasa Rao Mandadapu wrote: > Update lpass sc7180 platform driver with PM ops, such as > system supend and resume callbacks. > This update is required to disable clocks during supend and > avoid XO shutdown issue. > > Applied to https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next Thanks! [1/1] ASoC: qcom: lpass-sc7180: Add system suspend/resume PM ops commit: 2d68148f8f85ca5a4bf5e80c821b56167cfc0f8b All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark
Quoting Srinivasa Rao Mandadapu (2022-11-27 23:49:02) > Update lpass sc7180 platform driver with PM ops, such as > system supend and resume callbacks. > This update is required to disable clocks during supend and > avoid XO shutdown issue. > > Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com> > Tested-by: Rahul Ajmeriya <quic_rajmeriy@quicinc.com> > --- > sound/soc/qcom/lpass-sc7180.c | 26 ++++++++++++++++++++++++++ > 1 file changed, 26 insertions(+) > > diff --git a/sound/soc/qcom/lpass-sc7180.c b/sound/soc/qcom/lpass-sc7180.c > index 77a556b..6ad1c5b 100644 > --- a/sound/soc/qcom/lpass-sc7180.c > +++ b/sound/soc/qcom/lpass-sc7180.c > @@ -12,6 +12,7 @@ > #include <linux/module.h> > #include <linux/of.h> > #include <linux/platform_device.h> > +#include <linux/pm_runtime.h> Why is this include needed? Did you mean to include linux/pm.h? > #include <dt-bindings/sound/sc7180-lpass.h> > #include <sound/pcm.h> > #include <sound/soc.h> > @@ -156,10 +157,34 @@ static int sc7180_lpass_exit(struct platform_device *pdev) > struct lpass_data *drvdata = platform_get_drvdata(pdev); > > clk_bulk_disable_unprepare(drvdata->num_clks, drvdata->clks); > + return 0; > +} > + > +static int sc7180_lpass_dev_resume(struct device *dev) > +{ > + int ret = 0; Please don't assign ret and then assign it again. It hides use before true assignment bugs. > + struct lpass_data *drvdata = dev_get_drvdata(dev); > > + ret = clk_bulk_prepare_enable(drvdata->num_clks, drvdata->clks); > + if (ret) { > + dev_err(dev, "sc7180 clk prepare and enable failed\n"); > + return ret; > + } > + return ret; This could be simplified to ret = clk_bulk_prepare_enable(...); if (ret) dev_err(dev, ...); return ret;
Hi Srinivasa, On Mon, Nov 28, 2022 at 8:50 AM Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com> wrote: > Update lpass sc7180 platform driver with PM ops, such as > system supend and resume callbacks. > This update is required to disable clocks during supend and > avoid XO shutdown issue. > > Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com> > Tested-by: Rahul Ajmeriya <quic_rajmeriy@quicinc.com> Thanks for your patch, which is now commit 2d68148f8f85ca5a ("ASoC: qcom: lpass-sc7180: Add system suspend/resume PM ops") in next-20221129. > --- a/sound/soc/qcom/lpass-sc7180.c > +++ b/sound/soc/qcom/lpass-sc7180.c > @@ -12,6 +12,7 @@ > #include <linux/module.h> > #include <linux/of.h> > #include <linux/platform_device.h> > +#include <linux/pm_runtime.h> > #include <dt-bindings/sound/sc7180-lpass.h> > #include <sound/pcm.h> > #include <sound/soc.h> > @@ -156,10 +157,34 @@ static int sc7180_lpass_exit(struct platform_device *pdev) > struct lpass_data *drvdata = platform_get_drvdata(pdev); > > clk_bulk_disable_unprepare(drvdata->num_clks, drvdata->clks); > + return 0; > +} > + > +static int sc7180_lpass_dev_resume(struct device *dev) > +{ > + int ret = 0; > + struct lpass_data *drvdata = dev_get_drvdata(dev); > > + ret = clk_bulk_prepare_enable(drvdata->num_clks, drvdata->clks); > + if (ret) { > + dev_err(dev, "sc7180 clk prepare and enable failed\n"); > + return ret; > + } > + return ret; > +} > + > +static int sc7180_lpass_dev_suspend(struct device *dev) > +{ > + struct lpass_data *drvdata = dev_get_drvdata(dev); > + > + clk_bulk_disable_unprepare(drvdata->num_clks, drvdata->clks); > return 0; > } noreply@ellerman.id.au reports for e.g. m68k-allmodconfig: sound/soc/qcom/lpass-sc7180.c:179:12: error: 'sc7180_lpass_dev_suspend' defined but not used [-Werror=unused-function] sound/soc/qcom/lpass-sc7180.c:166:12: error: 'sc7180_lpass_dev_resume' defined but not used [-Werror=unused-function] > > +static const struct dev_pm_ops sc7180_lpass_pm_ops = { > + SET_SYSTEM_SLEEP_PM_OPS(sc7180_lpass_dev_suspend, sc7180_lpass_dev_resume) > +}; Please use DEFINE_SIMPLE_DEV_PM_OPS()... > + > static struct lpass_variant sc7180_data = { > .i2sctrl_reg_base = 0x1000, > .i2sctrl_reg_stride = 0x1000, > @@ -293,6 +318,7 @@ static struct platform_driver sc7180_lpass_cpu_platform_driver = { > .driver = { > .name = "sc7180-lpass-cpu", > .of_match_table = of_match_ptr(sc7180_lpass_cpu_device_id), > + .pm = &sc7180_lpass_pm_ops, ... and pm_sleep_ptr(). > }, > .probe = asoc_qcom_lpass_cpu_platform_probe, > .remove = asoc_qcom_lpass_cpu_platform_remove, Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds
Hi Geert, Thanks for your time!!! On 11/29/2022 1:23 PM, Geert Uytterhoeven wrote: > Hi Srinivasa, > > On Mon, Nov 28, 2022 at 8:50 AM Srinivasa Rao Mandadapu > <quic_srivasam@quicinc.com> wrote: >> Update lpass sc7180 platform driver with PM ops, such as >> system supend and resume callbacks. >> This update is required to disable clocks during supend and >> avoid XO shutdown issue. >> >> Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com> >> Tested-by: Rahul Ajmeriya <quic_rajmeriy@quicinc.com> > Thanks for your patch, which is now commit 2d68148f8f85ca5a ("ASoC: > qcom: lpass-sc7180: Add system suspend/resume PM ops") in next-20221129. > >> --- a/sound/soc/qcom/lpass-sc7180.c >> +++ b/sound/soc/qcom/lpass-sc7180.c >> @@ -12,6 +12,7 @@ >> #include <linux/module.h> >> #include <linux/of.h> >> #include <linux/platform_device.h> >> +#include <linux/pm_runtime.h> >> #include <dt-bindings/sound/sc7180-lpass.h> >> #include <sound/pcm.h> >> #include <sound/soc.h> >> @@ -156,10 +157,34 @@ static int sc7180_lpass_exit(struct platform_device *pdev) >> struct lpass_data *drvdata = platform_get_drvdata(pdev); >> >> clk_bulk_disable_unprepare(drvdata->num_clks, drvdata->clks); >> + return 0; >> +} >> + >> +static int sc7180_lpass_dev_resume(struct device *dev) >> +{ >> + int ret = 0; >> + struct lpass_data *drvdata = dev_get_drvdata(dev); >> >> + ret = clk_bulk_prepare_enable(drvdata->num_clks, drvdata->clks); >> + if (ret) { >> + dev_err(dev, "sc7180 clk prepare and enable failed\n"); >> + return ret; >> + } >> + return ret; >> +} >> + >> +static int sc7180_lpass_dev_suspend(struct device *dev) >> +{ >> + struct lpass_data *drvdata = dev_get_drvdata(dev); >> + >> + clk_bulk_disable_unprepare(drvdata->num_clks, drvdata->clks); >> return 0; >> } > noreply@ellerman.id.au reports for e.g. m68k-allmodconfig: > > sound/soc/qcom/lpass-sc7180.c:179:12: error: > 'sc7180_lpass_dev_suspend' defined but not used > [-Werror=unused-function] > sound/soc/qcom/lpass-sc7180.c:166:12: error: > 'sc7180_lpass_dev_resume' defined but not used > [-Werror=unused-function] > >> +static const struct dev_pm_ops sc7180_lpass_pm_ops = { >> + SET_SYSTEM_SLEEP_PM_OPS(sc7180_lpass_dev_suspend, sc7180_lpass_dev_resume) >> +}; > Please use DEFINE_SIMPLE_DEV_PM_OPS()... Actually, we need to use this patch in in previous kernels 5.4 and 5.15. I think these changes won't apply on previous kernel. Hence ignoring for now and will take care next time. > >> + >> static struct lpass_variant sc7180_data = { >> .i2sctrl_reg_base = 0x1000, >> .i2sctrl_reg_stride = 0x1000, >> @@ -293,6 +318,7 @@ static struct platform_driver sc7180_lpass_cpu_platform_driver = { >> .driver = { >> .name = "sc7180-lpass-cpu", >> .of_match_table = of_match_ptr(sc7180_lpass_cpu_device_id), >> + .pm = &sc7180_lpass_pm_ops, > ... and pm_sleep_ptr(). > >> }, >> .probe = asoc_qcom_lpass_cpu_platform_probe, >> .remove = asoc_qcom_lpass_cpu_platform_remove, > Gr{oetje,eeting}s, > > Geert > > -- > Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org > > In personal conversations with technical people, I call myself a hacker. But > when I'm talking to journalists I just say "programmer" or something like that. > -- Linus Torvalds
Hi Srinivasa, On Tue, Nov 29, 2022 at 11:36 AM Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com> wrote: > On 11/29/2022 1:23 PM, Geert Uytterhoeven wrote: > > On Mon, Nov 28, 2022 at 8:50 AM Srinivasa Rao Mandadapu > > <quic_srivasam@quicinc.com> wrote: > >> Update lpass sc7180 platform driver with PM ops, such as > >> system supend and resume callbacks. > >> This update is required to disable clocks during supend and > >> avoid XO shutdown issue. > >> > >> Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com> > >> Tested-by: Rahul Ajmeriya <quic_rajmeriy@quicinc.com> > > Thanks for your patch, which is now commit 2d68148f8f85ca5a ("ASoC: > > qcom: lpass-sc7180: Add system suspend/resume PM ops") in next-20221129. > > > >> --- a/sound/soc/qcom/lpass-sc7180.c > >> +++ b/sound/soc/qcom/lpass-sc7180.c > >> @@ -12,6 +12,7 @@ > >> #include <linux/module.h> > >> #include <linux/of.h> > >> #include <linux/platform_device.h> > >> +#include <linux/pm_runtime.h> > >> #include <dt-bindings/sound/sc7180-lpass.h> > >> #include <sound/pcm.h> > >> #include <sound/soc.h> > >> @@ -156,10 +157,34 @@ static int sc7180_lpass_exit(struct platform_device *pdev) > >> struct lpass_data *drvdata = platform_get_drvdata(pdev); > >> > >> clk_bulk_disable_unprepare(drvdata->num_clks, drvdata->clks); > >> + return 0; > >> +} > >> + > >> +static int sc7180_lpass_dev_resume(struct device *dev) > >> +{ > >> + int ret = 0; > >> + struct lpass_data *drvdata = dev_get_drvdata(dev); > >> > >> + ret = clk_bulk_prepare_enable(drvdata->num_clks, drvdata->clks); > >> + if (ret) { > >> + dev_err(dev, "sc7180 clk prepare and enable failed\n"); > >> + return ret; > >> + } > >> + return ret; > >> +} > >> + > >> +static int sc7180_lpass_dev_suspend(struct device *dev) > >> +{ > >> + struct lpass_data *drvdata = dev_get_drvdata(dev); > >> + > >> + clk_bulk_disable_unprepare(drvdata->num_clks, drvdata->clks); > >> return 0; > >> } > > noreply@ellerman.id.au reports for e.g. m68k-allmodconfig: > > > > sound/soc/qcom/lpass-sc7180.c:179:12: error: > > 'sc7180_lpass_dev_suspend' defined but not used > > [-Werror=unused-function] > > sound/soc/qcom/lpass-sc7180.c:166:12: error: > > 'sc7180_lpass_dev_resume' defined but not used > > [-Werror=unused-function] > > > >> +static const struct dev_pm_ops sc7180_lpass_pm_ops = { > >> + SET_SYSTEM_SLEEP_PM_OPS(sc7180_lpass_dev_suspend, sc7180_lpass_dev_resume) > >> +}; > > Please use DEFINE_SIMPLE_DEV_PM_OPS()... > Actually, we need to use this patch in in previous kernels 5.4 and 5.15. > I think these changes won't apply on previous kernel. > Hence ignoring for now and will take care next time. In that case you should add __maybe_unused tags to sc7180_lpass_dev_suspend() and sc7180_lpass_dev_resume() first, so it can be backported to 5.4 and 5.15, and do the DEFINE_SIMPLE_DEV_PM_OPS() conversion later. Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds
On Tue, Nov 29, 2022 at 11:53:10AM +0100, Geert Uytterhoeven wrote: > Hi Srinivasa, > > On Tue, Nov 29, 2022 at 11:36 AM Srinivasa Rao Mandadapu > <quic_srivasam@quicinc.com> wrote: > > On 11/29/2022 1:23 PM, Geert Uytterhoeven wrote: > > > On Mon, Nov 28, 2022 at 8:50 AM Srinivasa Rao Mandadapu > > > <quic_srivasam@quicinc.com> wrote: > > >> Update lpass sc7180 platform driver with PM ops, such as > > >> system supend and resume callbacks. > > >> This update is required to disable clocks during supend and > > >> avoid XO shutdown issue. > > >> > > >> Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com> > > >> Tested-by: Rahul Ajmeriya <quic_rajmeriy@quicinc.com> > > > Thanks for your patch, which is now commit 2d68148f8f85ca5a ("ASoC: > > > qcom: lpass-sc7180: Add system suspend/resume PM ops") in next-20221129. > > > > > >> --- a/sound/soc/qcom/lpass-sc7180.c > > >> +++ b/sound/soc/qcom/lpass-sc7180.c > > >> @@ -12,6 +12,7 @@ > > >> #include <linux/module.h> > > >> #include <linux/of.h> > > >> #include <linux/platform_device.h> > > >> +#include <linux/pm_runtime.h> > > >> #include <dt-bindings/sound/sc7180-lpass.h> > > >> #include <sound/pcm.h> > > >> #include <sound/soc.h> > > >> @@ -156,10 +157,34 @@ static int sc7180_lpass_exit(struct platform_device *pdev) > > >> struct lpass_data *drvdata = platform_get_drvdata(pdev); > > >> > > >> clk_bulk_disable_unprepare(drvdata->num_clks, drvdata->clks); > > >> + return 0; > > >> +} > > >> + > > >> +static int sc7180_lpass_dev_resume(struct device *dev) > > >> +{ > > >> + int ret = 0; > > >> + struct lpass_data *drvdata = dev_get_drvdata(dev); > > >> > > >> + ret = clk_bulk_prepare_enable(drvdata->num_clks, drvdata->clks); > > >> + if (ret) { > > >> + dev_err(dev, "sc7180 clk prepare and enable failed\n"); > > >> + return ret; > > >> + } > > >> + return ret; > > >> +} > > >> + > > >> +static int sc7180_lpass_dev_suspend(struct device *dev) > > >> +{ > > >> + struct lpass_data *drvdata = dev_get_drvdata(dev); > > >> + > > >> + clk_bulk_disable_unprepare(drvdata->num_clks, drvdata->clks); > > >> return 0; > > >> } > > > noreply@ellerman.id.au reports for e.g. m68k-allmodconfig: > > > > > > sound/soc/qcom/lpass-sc7180.c:179:12: error: > > > 'sc7180_lpass_dev_suspend' defined but not used > > > [-Werror=unused-function] > > > sound/soc/qcom/lpass-sc7180.c:166:12: error: > > > 'sc7180_lpass_dev_resume' defined but not used > > > [-Werror=unused-function] > > > > > >> +static const struct dev_pm_ops sc7180_lpass_pm_ops = { > > >> + SET_SYSTEM_SLEEP_PM_OPS(sc7180_lpass_dev_suspend, sc7180_lpass_dev_resume) > > >> +}; > > > Please use DEFINE_SIMPLE_DEV_PM_OPS()... > > Actually, we need to use this patch in in previous kernels 5.4 and 5.15. > > I think these changes won't apply on previous kernel. > > Hence ignoring for now and will take care next time. > > In that case you should add __maybe_unused tags to > sc7180_lpass_dev_suspend() and sc7180_lpass_dev_resume() first, so it > can be backported to 5.4 and 5.15, and do the DEFINE_SIMPLE_DEV_PM_OPS() > conversion later. FWIW, this is now breaking allmodconfig on RISC-V for this reason: make[2]: *** [../scripts/Makefile.build:504: lib] Error 2 ../sound/soc/qcom/lpass-sc7180.c:179:12: error: 'sc7180_lpass_dev_suspend' defined but not used [-Werror=unused-function] 179 | static int sc7180_lpass_dev_suspend(struct device *dev) | ^~~~~~~~~~~~~~~~~~~~~~~~ ../sound/soc/qcom/lpass-sc7180.c:166:12: error: 'sc7180_lpass_dev_resume' defined but not used [-Werror=unused-function] 166 | static int sc7180_lpass_dev_resume(struct device *dev) | ^~~~~~~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors Thanks, Conor.
diff --git a/sound/soc/qcom/lpass-sc7180.c b/sound/soc/qcom/lpass-sc7180.c index 77a556b..6ad1c5b 100644 --- a/sound/soc/qcom/lpass-sc7180.c +++ b/sound/soc/qcom/lpass-sc7180.c @@ -12,6 +12,7 @@ #include <linux/module.h> #include <linux/of.h> #include <linux/platform_device.h> +#include <linux/pm_runtime.h> #include <dt-bindings/sound/sc7180-lpass.h> #include <sound/pcm.h> #include <sound/soc.h> @@ -156,10 +157,34 @@ static int sc7180_lpass_exit(struct platform_device *pdev) struct lpass_data *drvdata = platform_get_drvdata(pdev); clk_bulk_disable_unprepare(drvdata->num_clks, drvdata->clks); + return 0; +} + +static int sc7180_lpass_dev_resume(struct device *dev) +{ + int ret = 0; + struct lpass_data *drvdata = dev_get_drvdata(dev); + ret = clk_bulk_prepare_enable(drvdata->num_clks, drvdata->clks); + if (ret) { + dev_err(dev, "sc7180 clk prepare and enable failed\n"); + return ret; + } + return ret; +} + +static int sc7180_lpass_dev_suspend(struct device *dev) +{ + struct lpass_data *drvdata = dev_get_drvdata(dev); + + clk_bulk_disable_unprepare(drvdata->num_clks, drvdata->clks); return 0; } +static const struct dev_pm_ops sc7180_lpass_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(sc7180_lpass_dev_suspend, sc7180_lpass_dev_resume) +}; + static struct lpass_variant sc7180_data = { .i2sctrl_reg_base = 0x1000, .i2sctrl_reg_stride = 0x1000, @@ -293,6 +318,7 @@ static struct platform_driver sc7180_lpass_cpu_platform_driver = { .driver = { .name = "sc7180-lpass-cpu", .of_match_table = of_match_ptr(sc7180_lpass_cpu_device_id), + .pm = &sc7180_lpass_pm_ops, }, .probe = asoc_qcom_lpass_cpu_platform_probe, .remove = asoc_qcom_lpass_cpu_platform_remove,