diff options
Diffstat (limited to 'target/linux/ipq806x/patches-4.19/0063-4-ip806x-tsense-rework-driver.patch')
| -rw-r--r-- | target/linux/ipq806x/patches-4.19/0063-4-ip806x-tsense-rework-driver.patch | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/target/linux/ipq806x/patches-4.19/0063-4-ip806x-tsense-rework-driver.patch b/target/linux/ipq806x/patches-4.19/0063-4-ip806x-tsense-rework-driver.patch new file mode 100644 index 0000000000..7092552559 --- /dev/null +++ b/target/linux/ipq806x/patches-4.19/0063-4-ip806x-tsense-rework-driver.patch @@ -0,0 +1,107 @@ +--- 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/io.h> + #include <linux/interrupt.h> +@@ -210,9 +212,8 @@ + struct tsens_device *tmdev = container_of(work, struct tsens_device, + 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(tmdev->map, STATUS_CNTL_8064, ®); + if (ret) +@@ -261,9 +262,8 @@ + if (upper_th_x || lower_th_x) { + /* Notify user space */ + schedule_work(&tmdev->sensor[0].notify_work); +- regmap_read(tmdev->map, sensor_addr, &adc_code); + pr_debug("Trigger (%d degrees) for sensor %d\n", +- code_to_degC(adc_code, &tmdev->sensor[0]), 0); ++ code_to_degC(code, &tmdev->sensor[0]), 0); + } + } + regmap_write(tmdev->map, STATUS_CNTL_8064, reg & mask); +@@ -372,40 +372,55 @@ + static int calibrate_ipq8064(struct tsens_device *tmdev) + { + int i; +- char *data, *data_backup; +- ++ int ret = 0; ++ u8 *data, *data_backup; ++ struct device *dev = tmdev->dev; + ssize_t num_read = tmdev->num_sensors; + struct tsens_sensor *s = tmdev->sensor; + +- data = qfprom_read(tmdev->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(tmdev->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(tmdev); + +- return 0; ++free_backup: ++ kfree(data_backup); ++free_data: ++ kfree(data); ++exit: ++ return ret; + } + + static int get_temp_ipq8064(struct tsens_device *tmdev, int id, int *temp) |