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cpu: imx_cpu: Print the CPU temperature for iMX8QM A72 

iMX8QM registers two thermal devices for CPUs, get the temperature
from "cpu-thermal1" device for A72

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
This commit is contained in:
Ye Li 2020-05-03 21:58:54 +08:00 committed by Stefano Babic
parent 55bc96f3b6
commit 3ee6ea443e
1 changed files with 12 additions and 6 deletions
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18
drivers/cpu/imx8_cpu.c
View File

@ -61,13 +61,15 @@ 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(UCLASS_THERMAL, 1, &thermal_dev);
else
ret = uclass_get_device(UCLASS_THERMAL, 0, &thermal_dev);
if (!ret) {
ret = thermal_get_temp(thermal_dev, &cpu_tmp);
@ -80,7 +82,7 @@ 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 +91,7 @@ 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 +100,13 @@ 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");