From: navneet kumar <navne...@nvidia.com>
Support writable trip points configuration from the
device tree. 'OF' reads this configuration and adjusts
the 'trips' mask accordingly to allow the 'set_trip_xxx'
calls to be effective.
Signed-off-by: Diwakar Tundlam <dtund...@nvidia.com>
---
drivers/thermal/of-thermal.c | 14 ++++++++++++--
1 file changed, 12 insertions(+), 2 deletions(-)
diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c
index 62143ba31001..cf9ee3e82fee 100644
--- a/drivers/thermal/of-thermal.c
+++ b/drivers/thermal/of-thermal.c
@@ -604,7 +604,8 @@ static int thermal_of_get_trip_type(struct device_node *np,
* Return: 0 on success, proper error code otherwise
*/
static int thermal_of_populate_trip(struct device_node *np,
- struct __thermal_trip *trip)
+ struct __thermal_trip *trip,
+ bool *trip_writable)
{
int prop;
int ret;
@@ -629,6 +630,8 @@ static int thermal_of_populate_trip(struct device_node *np,
return ret;
}
+ *trip_writable = of_property_read_bool(np, "writable");
+
/* Required for cooling map matching */
trip->np = np;
of_node_get(np);
@@ -657,6 +660,8 @@ thermal_of_build_thermal_zone(struct device_node *np)
struct __thermal_zone *tz;
int ret, i;
u32 prop;
+ bool trip_writable;
+ u64 m = 0;
if (!np) {
pr_err("no thermal zone np\n");
@@ -700,9 +705,14 @@ thermal_of_build_thermal_zone(struct device_node *np)
i = 0;
for_each_child_of_node(child, gchild) {
- ret = thermal_of_populate_trip(gchild, &tz->trips[i++]);
+ trip_writable = false;
+ ret = thermal_of_populate_trip(gchild, &tz->trips[i],
+ &trip_writable);
if (ret)
goto free_trips;
+ if (trip_writable)
+ m |= 1ULL << i;
+ i++;
}
of_node_put(child);
--
1.8.1.5
--
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