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thermal: imx_scu_thermal: prevent boot hang with zero pdata

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Should initialization of pdata values have failed for some reason,
we end up in endless loop when getting the CPU temperature value
and can not boot. Check alert value in pdata and only retry reading
temperature if alert value is not zero. Also shorten the temperature
info string.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
This commit is contained in:
Anatolij Gustschin 2020-05-20 10:21:53 +02:00
parent 74e8fb03bd
commit 4e7413a998
1 changed files with 3 additions and 1 deletions
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4
drivers/thermal/imx_scu_thermal.c
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@ -61,13 +61,15 @@ int imx_sc_thermal_get_temp(struct udevice *dev, int *temp)
return ret;
while (cpu_temp >= pdata->alert) {
printf("CPU Temperature (%dC) has beyond alert (%dC), close to critical (%dC)",
printf("CPU Temperature (%dC) beyond alert (%dC), close to critical (%dC)",
cpu_temp, pdata->alert, pdata->critical);
puts(" waiting...\n");
mdelay(pdata->polling_delay);
ret = read_temperature(dev, &cpu_temp);
if (ret)
return ret;
if (cpu_temp >= pdata->alert && !pdata->alert)
break;
}
*temp = cpu_temp / 1000;