thermal: imx_tmu: enable monitoring and default alert/critical
Set default critical/alert temperature and enabling monoitoring.
Without calling imx_tmu_enable_msite() monitoring will not be enabled
and read_temperature will return 0. Additionally without setting alert
temperature will cause imx_tmu_get_temp() to spin indefiniately thinking
the system needs to cool.
This resolves the board spinning endlessly when enabling IMX_TMU in the
SPL.
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
diff --git a/drivers/thermal/imx_tmu.c b/drivers/thermal/imx_tmu.c
index 02cefec..07766ba 100644
--- a/drivers/thermal/imx_tmu.c
+++ b/drivers/thermal/imx_tmu.c
@@ -344,6 +344,7 @@
ofnode node, offset;
const char *name;
const void *prop;
+ int minc, maxc;
debug("%s dev name %s\n", __func__, dev->name);
@@ -352,6 +353,10 @@
return 0;
pdata->zone_node = 1;
+ /* default alert/crit temps based on temp grade */
+ get_cpu_temp_grade(&minc, &maxc);
+ pdata->critical = maxc * 1000;
+ pdata->alert = (maxc - 10) * 1000;
node = ofnode_path("/thermal-zones");
ofnode_for_each_subnode(offset, node) {
@@ -443,6 +448,7 @@
if (pdata->zone_node) {
imx_tmu_init(dev);
imx_tmu_calibration(dev);
+ imx_tmu_enable_msite(dev);
} else {
imx_tmu_enable_msite(dev);
}