Commit f3eb8278 authored by Xiangwei Li's avatar Xiangwei Li Committed by Ma Wupeng
Browse files

PM / devfreq: Add related-package parameter in HiSilicon uncore devfreq 

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/IBC4SJ



--------------------------------

The related-package parameter is added to specify the package to which the
uncore belongs.

Signed-off-by: default avatarXiangwei Li <liwei728@huawei.com>
parent 75291516

drivers/devfreq/hisi_uncore_freq.c

+36 −0
Original line number Diff line number Diff line
@@ -38,6 +38,7 @@ struct hisi_uncore_freq { 
	unsigned long freq_max;

	unsigned long freq_step;

	struct devfreq *devfreq;

	int related_package;

	struct cpumask related_cpus;

};
@@ -410,6 +411,30 @@ static ssize_t related_cpus_show(struct device *dev, 
}

DEVICE_ATTR_RO(related_cpus);



static int get_related_package(struct hisi_uncore_freq *uncore)

{

	int rc;



	rc = device_property_read_u32(uncore->dev, "related-package",

									 &uncore->related_package);

	if (rc) {

		dev_err(uncore->dev, "failed to read related-package property\n");

		return rc;

	}



	return 0;

}



static ssize_t related_package_show(struct device *dev,

				 struct device_attribute *attr, char *buf)

{

	struct platform_device *pdev = to_platform_device(dev->parent);

	struct hisi_uncore_freq *uncore = platform_get_drvdata(pdev);



	return sprintf(buf, "%u\n", uncore->related_package);

}

DEVICE_ATTR_RO(related_package);



static int hisi_uncore_probe(struct platform_device *pdev)

{

	struct hisi_uncore_freq *uncore;
@@ -440,6 +465,10 @@ static int hisi_uncore_probe(struct platform_device *pdev) 
		goto err_free_opp;

	}



	rc = get_related_package(uncore);

	if (rc)

		goto err_free_opp;



	hisi_uncore_mark_related_cpus_wrap(uncore);



	rc = device_create_file(&uncore->devfreq->dev, &dev_attr_related_cpus);
@@ -448,6 +477,12 @@ static int hisi_uncore_probe(struct platform_device *pdev) 
		goto err_free_opp;

	}



	rc = device_create_file(&uncore->devfreq->dev, &dev_attr_related_package);

	if (rc) {

		dev_err(&pdev->dev, "Failed to create custom sysfs files\n");

		goto err_free_opp;

	}



	return 0;



err_free_opp:
@@ -467,6 +502,7 @@ static int hisi_uncore_remove(struct platform_device *pdev) 
	hisi_uncore_remove_opp(uncore);

	hisi_uncore_free_pcc_chan(uncore);

	device_remove_file(&uncore->devfreq->dev, &dev_attr_related_cpus);

	device_remove_file(&uncore->devfreq->dev, &dev_attr_related_package);



	return 0;

}