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[178.174.189.39]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-52f0415eb08sm774540e87.9.2024.07.23.07.46.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 23 Jul 2024 07:46:36 -0700 (PDT) From: Ulf Hansson To: Viresh Kumar , Nishanth Menon , Stephen Boyd Cc: Bjorn Andersson , Konrad Dybcio , Bryan O'Donoghue , Thierry Reding , Mikko Perttunen , Jonathan Hunter , Ulf Hansson , linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Ilia Lin , Stephan Gerhold , linux-arm-msm@vger.kernel.org Subject: [PATCH 3/4] cpufreq: qcom-nvmem: Convert to dev_pm_domain_attach|detach_list() Date: Tue, 23 Jul 2024 16:46:09 +0200 Message-Id: <20240723144610.564273-4-ulf.hansson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240723144610.564273-1-ulf.hansson@linaro.org> References: <20240723144610.564273-1-ulf.hansson@linaro.org> Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Rather than hooking up the PM domains through _opp_attach_genpd() and manually manage runtime PM for the corresponding virtual devices created by genpd during attach, let's avoid the boilerplate-code by converting into dev_pm_domain_attach|detach_list. Signed-off-by: Ulf Hansson --- drivers/cpufreq/qcom-cpufreq-nvmem.c | 79 +++++++++------------------- 1 file changed, 26 insertions(+), 53 deletions(-) diff --git a/drivers/cpufreq/qcom-cpufreq-nvmem.c b/drivers/cpufreq/qcom-cpufreq-nvmem.c index ea05d9d67490..65739ce98658 100644 --- a/drivers/cpufreq/qcom-cpufreq-nvmem.c +++ b/drivers/cpufreq/qcom-cpufreq-nvmem.c @@ -52,12 +52,13 @@ struct qcom_cpufreq_match_data { struct nvmem_cell *speedbin_nvmem, char **pvs_name, struct qcom_cpufreq_drv *drv); - const char **genpd_names; + const char **pd_names; + unsigned int num_pd_names; }; struct qcom_cpufreq_drv_cpu { int opp_token; - struct device **virt_devs; + struct dev_pm_domain_list *pd_list; }; struct qcom_cpufreq_drv { @@ -394,8 +395,6 @@ static int qcom_cpufreq_ipq8074_name_version(struct device *cpu_dev, return 0; } -static const char *generic_genpd_names[] = { "perf", NULL }; - static const struct qcom_cpufreq_match_data match_data_kryo = { .get_version = qcom_cpufreq_kryo_name_version, }; @@ -406,13 +405,13 @@ static const struct qcom_cpufreq_match_data match_data_krait = { static const struct qcom_cpufreq_match_data match_data_msm8909 = { .get_version = qcom_cpufreq_simple_get_version, - .genpd_names = generic_genpd_names, + .pd_names = (const char *[]) { "perf" }, + .num_pd_names = 1, }; -static const char *qcs404_genpd_names[] = { "cpr", NULL }; - static const struct qcom_cpufreq_match_data match_data_qcs404 = { - .genpd_names = qcs404_genpd_names, + .pd_names = (const char *[]) { "cpr" }, + .num_pd_names = 1, }; static const struct qcom_cpufreq_match_data match_data_ipq6018 = { @@ -427,28 +426,16 @@ static const struct qcom_cpufreq_match_data match_data_ipq8074 = { .get_version = qcom_cpufreq_ipq8074_name_version, }; -static void qcom_cpufreq_suspend_virt_devs(struct qcom_cpufreq_drv *drv, unsigned int cpu) +static void qcom_cpufreq_suspend_pd_devs(struct qcom_cpufreq_drv *drv, unsigned int cpu) { - const char * const *name = drv->data->genpd_names; + struct dev_pm_domain_list *pd_list = drv->cpus[cpu].pd_list; int i; - if (!drv->cpus[cpu].virt_devs) + if (!pd_list) return; - for (i = 0; *name; i++, name++) - device_set_awake_path(drv->cpus[cpu].virt_devs[i]); -} - -static void qcom_cpufreq_put_virt_devs(struct qcom_cpufreq_drv *drv, unsigned int cpu) -{ - const char * const *name = drv->data->genpd_names; - int i; - - if (!drv->cpus[cpu].virt_devs) - return; - - for (i = 0; *name; i++, name++) - pm_runtime_put(drv->cpus[cpu].virt_devs[i]); + for (i = 0; i < pd_list->num_pds; i++) + device_set_awake_path(pd_list->pd_devs[i]); } static int qcom_cpufreq_probe(struct platform_device *pdev) @@ -505,7 +492,6 @@ static int qcom_cpufreq_probe(struct platform_device *pdev) of_node_put(np); for_each_possible_cpu(cpu) { - struct device **virt_devs = NULL; struct dev_pm_opp_config config = { .supported_hw = NULL, }; @@ -524,12 +510,7 @@ static int qcom_cpufreq_probe(struct platform_device *pdev) config.prop_name = pvs_name; } - if (drv->data->genpd_names) { - config.genpd_names = drv->data->genpd_names; - config.virt_devs = &virt_devs; - } - - if (config.supported_hw || config.genpd_names) { + if (config.supported_hw) { drv->cpus[cpu].opp_token = dev_pm_opp_set_config(cpu_dev, &config); if (drv->cpus[cpu].opp_token < 0) { ret = drv->cpus[cpu].opp_token; @@ -538,25 +519,17 @@ static int qcom_cpufreq_probe(struct platform_device *pdev) } } - if (virt_devs) { - const char * const *name = config.genpd_names; - int i, j; - - for (i = 0; *name; i++, name++) { - ret = pm_runtime_resume_and_get(virt_devs[i]); - if (ret) { - dev_err(cpu_dev, "failed to resume %s: %d\n", - *name, ret); + if (drv->data->pd_names) { + struct dev_pm_domain_attach_data attach_data = { + .pd_names = drv->data->pd_names, + .num_pd_names = drv->data->num_pd_names, + .pd_flags = PD_FLAG_DEV_LINK_ON, + }; - /* Rollback previous PM runtime calls */ - name = config.genpd_names; - for (j = 0; *name && j < i; j++, name++) - pm_runtime_put(virt_devs[j]); - - goto free_opp; - } - } - drv->cpus[cpu].virt_devs = virt_devs; + ret = dev_pm_domain_attach_list(cpu_dev, &attach_data, + &drv->cpus[cpu].pd_list); + if (ret < 0) + goto free_opp; } } @@ -572,7 +545,7 @@ static int qcom_cpufreq_probe(struct platform_device *pdev) free_opp: for_each_possible_cpu(cpu) { - qcom_cpufreq_put_virt_devs(drv, cpu); + dev_pm_domain_detach_list(drv->cpus[cpu].pd_list); dev_pm_opp_clear_config(drv->cpus[cpu].opp_token); } return ret; @@ -586,7 +559,7 @@ static void qcom_cpufreq_remove(struct platform_device *pdev) platform_device_unregister(cpufreq_dt_pdev); for_each_possible_cpu(cpu) { - qcom_cpufreq_put_virt_devs(drv, cpu); + dev_pm_domain_detach_list(drv->cpus[cpu].pd_list); dev_pm_opp_clear_config(drv->cpus[cpu].opp_token); } } @@ -597,7 +570,7 @@ static int qcom_cpufreq_suspend(struct device *dev) unsigned int cpu; for_each_possible_cpu(cpu) - qcom_cpufreq_suspend_virt_devs(drv, cpu); + qcom_cpufreq_suspend_pd_devs(drv, cpu); return 0; }