[PATCH 05/13] Thermal: Obtain platform data for thermal zone

[Durgadoss R <durgadoss.r@intel.com>]

This patch retrieves the platform level data for
a zone during its registration. It is not an error
to not have any platform data.

Signed-off-by: Durgadoss R <durgadoss.r@intel.com>
---
 drivers/thermal/thermal_sys.c |   19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/drivers/thermal/thermal_sys.c b/drivers/thermal/thermal_sys.c
index f043cd6..243a3f0 100644
--- a/drivers/thermal/thermal_sys.c
+++ b/drivers/thermal/thermal_sys.c
@@ -142,6 +142,22 @@ struct thermal_instance *get_thermal_instance(struct thermal_zone_device *tz,
 }
 EXPORT_SYMBOL(get_thermal_instance);
 
+static void retrieve_zone_params(struct thermal_zone_device *tz)
+{
+	int ret;
+
+	/* Check whether the platform data pointer is defined */
+	if (!get_platform_thermal_params)
+		return;
+
+	ret = get_platform_thermal_params(tz);
+	if (ret) {
+		dev_err(&tz->device,
+		"parameters for zone %s not defined:%d\n", tz->type, ret);
+		tz->tzp = NULL;
+	}
+}
+
 /* sys I/F for thermal zone */
 
 #define to_thermal_zone(_dev) \
@@ -1460,6 +1476,9 @@ struct thermal_zone_device *thermal_zone_device_register(const char *type,
 	if (result)
 		goto unregister;
 
+	/* Retrieve platform level parameters for this zone */
+	retrieve_zone_params(tz);
+
 	mutex_lock(&thermal_list_lock);
 	list_add_tail(&tz->node, &thermal_tz_list);
 	if (ops->bind)
-- 
1.7.9.5