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Wysocki" , Pavel Machek , Len Brown , Greg Kroah-Hartman , Stanimir Varbanov , Vikash Garodia , Bjorn Andersson , Konrad Dybcio , Mauro Carvalho Chehab , Ulf Hansson Cc: "Bryan O'Donoghue" , linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org, Dikshita Agarwal Subject: [PATCH v2 1/2] PM: domains: add device managed version of dev_pm_domain_attach|detach_list() Date: Wed, 7 Aug 2024 12:45:46 +0530 Message-Id: <1723014947-15571-2-git-send-email-quic_dikshita@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1723014947-15571-1-git-send-email-quic_dikshita@quicinc.com> References: <1723014947-15571-1-git-send-email-quic_dikshita@quicinc.com> X-QCInternal: smtphost X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: SvqE7TwCh30k_S_U_aaI9ZKay4gGvAqv X-Proofpoint-GUID: SvqE7TwCh30k_S_U_aaI9ZKay4gGvAqv X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.28.16 definitions=2024-08-07_04,2024-08-06_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=999 impostorscore=0 malwarescore=0 suspectscore=0 phishscore=0 mlxscore=0 priorityscore=1501 lowpriorityscore=0 bulkscore=0 adultscore=0 spamscore=0 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408070048 Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Add the devres-enabled version of dev_pm_domain_attach|detach_list. If client drivers use devm_pm_domain_attach_list() to attach the PM domains, devm_pm_domain_detach_list() will be invoked implicitly during remove phase. Signed-off-by: Dikshita Agarwal --- drivers/base/power/common.c | 44 ++++++++++++++++++++++++++++++++++++++++++++ include/linux/pm_domain.h | 13 +++++++++++++ 2 files changed, 57 insertions(+) diff --git a/drivers/base/power/common.c b/drivers/base/power/common.c index 327d168..729d6c2 100644 --- a/drivers/base/power/common.c +++ b/drivers/base/power/common.c @@ -277,6 +277,50 @@ int dev_pm_domain_attach_list(struct device *dev, EXPORT_SYMBOL_GPL(dev_pm_domain_attach_list); /** + * devm_pm_domain_detach_list - devres-enabled version of dev_pm_domain_detach_list. + * @_list: The list of PM domains to detach. + * + * This function reverse the actions from devm_pm_domain_attach_list(). + * it will be invoked during the remove phase from drivers implicitly if driver + * uses devm_pm_domain_attach_list() to attach the PM domains. + */ +void devm_pm_domain_detach_list(void *_list) +{ + struct dev_pm_domain_list *list = _list; + + dev_pm_domain_detach_list(list); +} +EXPORT_SYMBOL_GPL(devm_pm_domain_detach_list); + +/** + * devm_pm_domain_attach_list - devres-enabled version of dev_pm_domain_attach_list + * @dev: The device used to lookup the PM domains for. + * @data: The data used for attaching to the PM domains. + * @list: An out-parameter with an allocated list of attached PM domains. + * + * NOTE: this will also handle calling devm_pm_domain_detach_list() for + * you during remove phase. + * + * Returns the number of attached PM domains or a negative error code in case of + * a failure. + */ +int devm_pm_domain_attach_list(struct device *dev, + const struct dev_pm_domain_attach_data *data, + struct dev_pm_domain_list **list) +{ + int ret, num_pds = 0; + + num_pds = dev_pm_domain_attach_list(dev, data, list); + + ret = devm_add_action_or_reset(dev, devm_pm_domain_detach_list, *list); + if (ret) + return ret; + + return num_pds; +} +EXPORT_SYMBOL_GPL(devm_pm_domain_attach_list); + +/** * dev_pm_domain_detach - Detach a device from its PM domain. * @dev: Device to detach. * @power_off: Used to indicate whether we should power off the device. diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h index 772d328..efd517017 100644 --- a/include/linux/pm_domain.h +++ b/include/linux/pm_domain.h @@ -450,8 +450,12 @@ struct device *dev_pm_domain_attach_by_name(struct device *dev, int dev_pm_domain_attach_list(struct device *dev, const struct dev_pm_domain_attach_data *data, struct dev_pm_domain_list **list); +int devm_pm_domain_attach_list(struct device *dev, + const struct dev_pm_domain_attach_data *data, + struct dev_pm_domain_list **list); void dev_pm_domain_detach(struct device *dev, bool power_off); void dev_pm_domain_detach_list(struct dev_pm_domain_list *list); +void devm_pm_domain_detach_list(void *list); int dev_pm_domain_start(struct device *dev); void dev_pm_domain_set(struct device *dev, struct dev_pm_domain *pd); int dev_pm_domain_set_performance_state(struct device *dev, unsigned int state); @@ -476,8 +480,17 @@ static inline int dev_pm_domain_attach_list(struct device *dev, { return 0; } + +static inline int devm_pm_domain_attach_list(struct device *dev, + const struct dev_pm_domain_attach_data *data, + struct dev_pm_domain_list **list) +{ + return 0; +} + static inline void dev_pm_domain_detach(struct device *dev, bool power_off) {} static inline void dev_pm_domain_detach_list(struct dev_pm_domain_list *list) {} +static inline void devm_pm_domain_detach_list(void *list) {} static inline int dev_pm_domain_start(struct device *dev) { return 0; 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Wysocki" , Pavel Machek , Len Brown , Greg Kroah-Hartman , Stanimir Varbanov , Vikash Garodia , Bjorn Andersson , Konrad Dybcio , Mauro Carvalho Chehab , Ulf Hansson Cc: "Bryan O'Donoghue" , linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org, Dikshita Agarwal Subject: [PATCH v2 2/2] media: venus: use device managed APIs for power domains Date: Wed, 7 Aug 2024 12:45:47 +0530 Message-Id: <1723014947-15571-3-git-send-email-quic_dikshita@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1723014947-15571-1-git-send-email-quic_dikshita@quicinc.com> References: <1723014947-15571-1-git-send-email-quic_dikshita@quicinc.com> X-QCInternal: smtphost X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: SgZoCq7e7buS78MgL-eVbRoHv6jXx-aj X-Proofpoint-GUID: SgZoCq7e7buS78MgL-eVbRoHv6jXx-aj X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.28.16 definitions=2024-08-07_04,2024-08-06_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 priorityscore=1501 spamscore=0 mlxlogscore=999 phishscore=0 clxscore=1015 suspectscore=0 adultscore=0 mlxscore=0 malwarescore=0 bulkscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408070048 Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Use devres-enabled version of power domain attach APIs. Signed-off-by: Dikshita Agarwal --- drivers/media/platform/qcom/venus/pm_helpers.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c index 5028220..86221e0 100644 --- a/drivers/media/platform/qcom/venus/pm_helpers.c +++ b/drivers/media/platform/qcom/venus/pm_helpers.c @@ -869,7 +869,7 @@ static int vcodec_domains_get(struct venus_core *core) if (!res->vcodec_pmdomains_num) goto skip_pmdomains; - ret = dev_pm_domain_attach_list(dev, &vcodec_data, &core->pmdomains); + ret = devm_pm_domain_attach_list(dev, &vcodec_data, &core->pmdomains); if (ret < 0) return ret; @@ -895,14 +895,11 @@ static int vcodec_domains_get(struct venus_core *core) return 0; opp_attach_err: - dev_pm_domain_detach_list(core->pmdomains); return ret; } static void vcodec_domains_put(struct venus_core *core) { - dev_pm_domain_detach_list(core->pmdomains); - if (!core->has_opp_table) return;