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Commit 7cfd6620 authored by Runmin Wang's avatar Runmin Wang Committed by Channagoud Kadabi
Browse files

soc: qcom: core_hang: Separate sysfs entry for silver and gold cluster 



Silver and gold cluster use different PMU_EVENT and may need to have
different threshold values.

This patch creates different sysfs entries for silver and gold cluster.

Change-Id: I88cdf5110cadb44a81c0c700d5188bf639bb2129
Signed-off-by: default avatarRunmin Wang <runminw@codeaurora.org>
Signed-off-by: default avatarChannagoud Kadabi <ckadabi@codeaurora.org>
parent 5c4400be

Documentation/devicetree/bindings/arm/msm/msm_hang_detect.txt

+1 −0
Original line number Diff line number Diff line
@@ -25,6 +25,7 @@ The device tree parameters for the core hang detection are: 
Required properties:



- compatible : "qcom,core-hang-detect"

- label: unique name used to created sysfs entry

- qcom,threshold-arr :

	Array of APCS_ALIAS*_CORE_HANG_THRESHOLD register address

	for each core.

drivers/soc/qcom/core_hang_detect.c

+20 −4
Original line number Diff line number Diff line
@@ -245,7 +245,9 @@ static int msm_hang_detect_probe(struct platform_device *pdev) 
	struct device_node *node = pdev->dev.of_node;

	struct hang_detect *hang_det = NULL;

	int cpu, ret, cpu_count = 0;

	u32 treg[NR_CPUS], creg[NR_CPUS];

	const char *name;

	u32 treg[NR_CPUS] = {0}, creg[NR_CPUS] = {0};

	u32 num_reg = 0;



	if (!pdev->dev.of_node || !enable)

		return -ENODEV;
@@ -258,15 +260,28 @@ static int msm_hang_detect_probe(struct platform_device *pdev) 
		return -ENOMEM;

	}



	name = of_get_property(node, "label", NULL);

	if (!name) {

		pr_err("Can't get label property\n");

		return -EINVAL;

	}



	num_reg = of_property_count_u32_elems(node,

			"qcom,threshold-arr");

	if (num_reg < 0) {

		pr_err("Can't get threshold-arr property\n");

		return -EINVAL;

	}



	ret = of_property_read_u32_array(node, "qcom,threshold-arr",

				treg, num_possible_cpus());

				treg, num_reg);

	if (ret) {

		pr_err("Can't get threshold-arr property\n");

		return -EINVAL;

	}



	ret = of_property_read_u32_array(node, "qcom,config-arr",

				creg, num_possible_cpus());

				creg, num_reg);

	if (ret) {

		pr_err("Can't get config-arr property\n");

		return -EINVAL;
@@ -289,7 +304,8 @@ static int msm_hang_detect_probe(struct platform_device *pdev) 
	}



	ret = kobject_init_and_add(&hang_det->kobj, &core_ktype,

			&cpu_subsys.dev_root->kobj, "%s", "hang_detect");

			&cpu_subsys.dev_root->kobj, "%s_%s",

			"hang_detect", name);

	if (ret) {

		pr_err("%s:Error in creation kobject_add\n", __func__);

		goto out_put_kobj;