1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
--- a/drivers/thermal/qcom/tsens-ipq8064.c
+++ b/drivers/thermal/qcom/tsens-ipq8064.c
@@ -13,10 +13,12 @@
*/
#include <linux/platform_device.h>
+#include <linux/err.h>
#include <linux/delay.h>
#include <linux/bitops.h>
#include <linux/regmap.h>
#include <linux/thermal.h>
+#include <linux/slab.h>
#include <linux/nvmem-consumer.h>
#include <linux/of_platform.h>
#include <linux/io.h>
@@ -211,9 +213,8 @@ static void tsens_scheduler_fn(struct wo
struct tsens_priv *priv = container_of(work, struct tsens_priv,
tsens_work);
unsigned int threshold, threshold_low, code, reg, sensor, mask;
- unsigned int sensor_addr;
bool upper_th_x, lower_th_x;
- int adc_code, ret;
+ int ret;
ret = regmap_read(priv->tm_map, STATUS_CNTL_8064, ®);
if (ret)
@@ -262,9 +263,8 @@ static void tsens_scheduler_fn(struct wo
if (upper_th_x || lower_th_x) {
/* Notify user space */
schedule_work(&priv->sensor[0].notify_work);
- regmap_read(priv->tm_map, sensor_addr, &adc_code);
pr_debug("Trigger (%d degrees) for sensor %d\n",
- code_to_degC(adc_code, &priv->sensor[0]), 0);
+ code_to_degC(code, &priv->sensor[0]), 0);
}
}
regmap_write(priv->tm_map, STATUS_CNTL_8064, reg & mask);
@@ -404,40 +404,55 @@ err_put_device:
static int calibrate_ipq8064(struct tsens_priv *priv)
{
int i;
- char *data, *data_backup;
-
+ int ret = 0;
+ u8 *data, *data_backup;
+ struct device *dev = priv->dev;
ssize_t num_read = priv->num_sensors;
struct tsens_sensor *s = priv->sensor;
- data = qfprom_read(priv->dev, "calib");
+ data = qfprom_read(dev, "calib");
if (IS_ERR(data)) {
- pr_err("Calibration not found.\n");
- return PTR_ERR(data);
+ ret = PTR_ERR(data);
+ if (ret != -EPROBE_DEFER)
+ dev_err(dev, "Calibration not found.");
+ goto exit;
}
- data_backup = qfprom_read(priv->dev, "calib_backup");
+ data_backup = qfprom_read(dev, "calib_backup");
if (IS_ERR(data_backup)) {
- pr_err("Backup calibration not found.\n");
- return PTR_ERR(data_backup);
+ ret = PTR_ERR(data_backup);
+ if (ret != -EPROBE_DEFER)
+ dev_err(dev, "Backup Calibration not found.");
+ goto free_data;
}
for (i = 0; i < num_read; i++) {
s[i].calib_data = readb_relaxed(data + i);
- s[i].calib_data_backup = readb_relaxed(data_backup + i);
+
+ if (!s[i].calib_data) {
+ s[i].calib_data_backup = readb_relaxed(data_backup + i);
+
+ if (!s[i].calib_data_backup) {
+ dev_err(dev, "QFPROM TSENS calibration data not present");
+ ret = -ENODEV;
+ goto free_backup;
+ }
- if (s[i].calib_data_backup)
s[i].calib_data = s[i].calib_data_backup;
- if (!s[i].calib_data) {
- pr_err("QFPROM TSENS calibration data not present\n");
- return -ENODEV;
}
+
s[i].slope = tsens_8064_slope[i];
s[i].offset = CAL_MDEGC - (s[i].calib_data * s[i].slope);
}
hw_init(priv);
- return 0;
+free_backup:
+ kfree(data_backup);
+free_data:
+ kfree(data);
+exit:
+ return ret;
}
static int get_temp_ipq8064(struct tsens_priv *priv, int id, int *temp)
|
