RE: [PATCHv2 05/14] Thermal: Obtain platform data for thermal zone

-----Original Message-----
From: R, Durgadoss
Sent: Monday, August 27, 2012 7:28 AM
To: lenb@kernel.org; Zhang, Rui
Cc: linux-acpi@vger.kernel.org; eduardo.valentin@ti.com; R, Durgadoss
Subject: [PATCHv2 05/14] Thermal: Obtain platform data for thermal zone
Importance: High

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 <redacted>
---
 drivers/thermal/thermal_sys.c |   21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/drivers/thermal/thermal_sys.c

b/drivers/thermal/thermal_sys.c index 92a187c..6adda39 100644

--- a/drivers/thermal/thermal_sys.c
+++ b/drivers/thermal/thermal_sys.c

@@ -1339,6 +1339,22 @@ static void remove_trip_attrs(struct

thermal_zone_device *tz)
 	kfree(tz->trip_hyst_attrs);
 }

+static int retrieve_zone_params(struct thermal_zone_device *tz) {
+	int ret;
+
+	/* Check whether the platform data pointer is defined */
+	if (!get_platform_thermal_params)
+		return 0;
+
+	/* It is not an error to not have any platform data */
+	ret = get_platform_thermal_params(tz);
+	if (ret)
+		tz->tzp = NULL;
+
+	return 0;
+}
+
 /**
  * thermal_zone_device_register - register a new thermal zone device
  * @type:	the thermal zone device type

@@ -1443,6 +1459,11 @@ struct thermal_zone_device

*thermal_zone_device_register(const char *type,
 	if (result)
 		goto unregister;

+	/* Retrieve platform level parameters for this zone */
+	result = retrieve_zone_params(tz);
+	if (result)
+		goto unregister;
+