[PATCH 6/7] cpu: imx_cpu: Print the CPU temperature for iMX8QM A72
Peng Fan
peng.fan at nxp.com
Wed Apr 29 04:17:19 CEST 2020
From: Ye Li <ye.li at nxp.com>
iMX8QM registers two thermal devices for CPUs, get the temperature
from "cpu-thermal1" device for A72
Signed-off-by: Ye Li <ye.li at nxp.com>
Signed-off-by: Peng Fan <peng.fan at nxp.com>
---
drivers/cpu/imx8_cpu.c | 20 ++++++++++++++------
1 file changed, 14 insertions(+), 6 deletions(-)
diff --git a/drivers/cpu/imx8_cpu.c b/drivers/cpu/imx8_cpu.c
index 525c28bc4b..d99d9aacd9 100644
--- a/drivers/cpu/imx8_cpu.c
+++ b/drivers/cpu/imx8_cpu.c
@@ -61,13 +61,17 @@ const char *get_core_name(struct udevice *dev)
}
#if IS_ENABLED(CONFIG_IMX_SCU_THERMAL)
-static int cpu_imx_get_temp(void)
+static int cpu_imx_get_temp(struct cpu_imx_platdata *plat)
{
struct udevice *thermal_dev;
int cpu_tmp, ret;
- ret = uclass_get_device_by_name(UCLASS_THERMAL, "cpu-thermal0",
- &thermal_dev);
+ if (!strcmp(plat->name, "A72"))
+ ret = uclass_get_device_by_name(UCLASS_THERMAL, "cpu-thermal1",
+ &thermal_dev);
+ else
+ ret = uclass_get_device_by_name(UCLASS_THERMAL, "cpu-thermal0",
+ &thermal_dev);
if (!ret) {
ret = thermal_get_temp(thermal_dev, &cpu_tmp);
@@ -80,7 +84,7 @@ static int cpu_imx_get_temp(void)
return cpu_tmp;
}
#else
-static int cpu_imx_get_temp(void)
+static int cpu_imx_get_temp(struct cpu_imx_platdata *plat)
{
return 0;
}
@@ -89,7 +93,7 @@ static int cpu_imx_get_temp(void)
int cpu_imx_get_desc(struct udevice *dev, char *buf, int size)
{
struct cpu_imx_platdata *plat = dev_get_platdata(dev);
- int ret;
+ int ret, temp;
if (size < 100)
return -ENOSPC;
@@ -98,9 +102,13 @@ int cpu_imx_get_desc(struct udevice *dev, char *buf, int size)
plat->type, plat->rev, plat->name, plat->freq_mhz);
if (IS_ENABLED(CONFIG_IMX_SCU_THERMAL)) {
+ temp = cpu_imx_get_temp(plat);
buf = buf + ret;
size = size - ret;
- ret = snprintf(buf, size, " at %dC", cpu_imx_get_temp());
+ if (temp != 0xdeadbeef)
+ ret = snprintf(buf, size, " at %dC", temp);
+ else
+ ret = snprintf(buf, size, " - invalid sensor data");
}
snprintf(buf + ret, size - ret, "\n");
--
2.16.4
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