Merge "msm: thermal: Support a debugfs to control temperature logging" (9162be8e) · Commits · e / devices / android_kernel_sony_msm8994

drivers/thermal/msm_thermal.c

+65 −1

Original line number	Diff line number	Diff line
		@@ -39,6 +39,7 @@
		#include <linux/msm_thermal_ioctl.h>
		#include <soc/qcom/rpm-smd.h>
		#include <soc/qcom/scm.h>
		#include <linux/debugfs.h>

		#define CREATE_TRACE_POINTS
		#define TRACE_MSM_THERMAL
		@@ -52,6 +53,18 @@
		#define TSENS_NAME_FORMAT "tsens_tz_sensor%d"
		#define THERM_SECURE_BITE_CMD 8
		#define SENSOR_SCALING_FACTOR 1
		#define MSM_THERMAL_NAME "msm_thermal"
		#define MSM_TSENS_PRINT "log_tsens_temperature"

		#define THERM_CREATE_DEBUGFS_DIR(_node, _name, _parent, _ret) \
		do { \
		_node = debugfs_create_dir(_name, _parent); \
		if (IS_ERR(_node)) { \
		_ret = PTR_ERR(_node); \
		pr_err("Error creating debugfs dir:%s. err:%d\n", \
		_name, _ret); \
		} \
		} while (0)

		static struct msm_thermal_data msm_thermal_info;
		static struct delayed_work check_temp_work;
		@@ -124,6 +137,7 @@ static struct regulator *vdd_mx;
		static struct cpufreq_frequency_table *pending_freq_table_ptr;
		static int pending_cpu_freq = -1;
		static long *tsens_temp_at_panic;
		static u32 tsens_temp_print;

		enum thermal_threshold {
		HOTPLUG_THRESHOLD_HIGH,
		@@ -246,6 +260,11 @@ enum msm_temp_band {
		MSM_TEMP_MAX_NR,
		};

		struct msm_thermal_debugfs_entry {
		struct dentry *parent;
		struct dentry *tsens_print;
		};

		static struct psm_rail *psm_rails;
		static struct psm_rail *ocr_rails;
		static struct rail *rails;
		@@ -254,6 +273,7 @@ static struct cpu_info cpus[NR_CPUS];
		static struct threshold_info *thresh;
		static bool mx_restr_applied;
		static struct cluster_info *core_ptr;
		static struct msm_thermal_debugfs_entry *msm_therm_debugfs;

		struct vdd_rstr_enable {
		struct kobj_attribute ko_attr;
		@@ -479,6 +499,43 @@ static ssize_t cluster_info_show(
		return tot_size;
		}

		static int create_thermal_debugfs(void)
		{
		int ret = 0;

		if (msm_therm_debugfs)
		return ret;

		msm_therm_debugfs = devm_kzalloc(&msm_thermal_info.pdev->dev,
		sizeof(struct msm_thermal_debugfs_entry), GFP_KERNEL);
		if (!msm_therm_debugfs) {
		ret = -ENOMEM;
		pr_err("Memory alloc failed. err:%d\n", ret);
		return ret;
		}

		THERM_CREATE_DEBUGFS_DIR(msm_therm_debugfs->parent, MSM_THERMAL_NAME,
		NULL, ret);
		if (ret)
		goto create_exit;

		msm_therm_debugfs->tsens_print = debugfs_create_bool(MSM_TSENS_PRINT,
		0600, msm_therm_debugfs->parent, &tsens_temp_print);
		if (IS_ERR(msm_therm_debugfs->tsens_print)) {
		ret = PTR_ERR(msm_therm_debugfs->tsens_print);
		pr_err("Error creating debugfs:[%s]. err:%d\n",
		MSM_TSENS_PRINT, ret);
		goto create_exit;
		}

		create_exit:
		if (ret) {
		debugfs_remove_recursive(msm_therm_debugfs->parent);
		devm_kfree(&msm_thermal_info.pdev->dev, msm_therm_debugfs);
		}
		return ret;
		}

		static struct kobj_attribute cluster_info_attr = __ATTR_RO(cluster_info);
		static int create_cpu_topology_sysfs(void)
		{
		@@ -1601,10 +1658,14 @@ static int msm_thermal_panic_callback(struct notifier_block *nfb,
		{
		int i;

		for (i = 0; i < max_tsens_num; i++)
		for (i = 0; i < max_tsens_num; i++) {
		therm_get_temp(tsens_id_map[i],
		THERM_TSENS_ID,
		&tsens_temp_at_panic[i]);
		if (tsens_temp_print)
		pr_err("tsens%d temperature:%ldC\n",
		tsens_id_map[i], tsens_temp_at_panic[i]);
		}

		return NOTIFY_OK;
		}
		@@ -5017,6 +5078,8 @@ static int msm_thermal_dev_exit(struct platform_device *inp_dev)
		{
		int i = 0;

		if (msm_therm_debugfs && msm_therm_debugfs->parent)
		debugfs_remove_recursive(msm_therm_debugfs->parent);
		msm_thermal_ioctl_cleanup();
		if (thresh) {
		if (vdd_rstr_enabled)
		@@ -5082,6 +5145,7 @@ int __init msm_thermal_late_init(void)
		msm_thermal_add_mx_nodes();
		interrupt_mode_init();
		create_cpu_topology_sysfs();
		create_thermal_debugfs();
		return 0;
		}
		late_initcall(msm_thermal_late_init);