[PATCH 4/4] hwmon: (ibmpowernv) pretty print labels

["Cédric Le Goater" <clg@fr.ibm.com>]

The new OPAL device tree adds a few properties which can be used to add
extra information on the sensor label.

Signed-off-by: Cédric Le Goater <clg@fr.ibm.com>
---
 drivers/hwmon/ibmpowernv.c |   22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/drivers/hwmon/ibmpowernv.c b/drivers/hwmon/ibmpowernv.c
index be6fe559b52a..3e753c215b40 100644
--- a/drivers/hwmon/ibmpowernv.c
+++ b/drivers/hwmon/ibmpowernv.c
@@ -113,9 +113,31 @@ static ssize_t show_label(struct device *dev, struct device_attribute *devattr,
 static void __init make_sensor_label(struct device_node *np,
 		    struct sensor_data *sdata, const char *label)
 {
+	u32 id;
 	size_t n;
 
 	n = snprintf(sdata->label, sizeof(sdata->label), "%s", label);
+
+	/*
+	 * Core temp pretty print
+	 */
+	if (!of_property_read_u32(np, "ibm,pir", &id)) {
+		int i;
+
+		for_each_possible_cpu(i)
+			if (paca[i].hw_cpu_id == id)
+				break;
+
+		n += snprintf(sdata->label + n, sizeof(sdata->label) - n,
+			      " %d-%d", i, i+7);
+	}
+
+	/*
+	 * Membuffer pretty print
+	 */
+	if (!of_property_read_u32(np, "ibm,chip-id", &id))
+		n += snprintf(sdata->label + n, sizeof(sdata->label) - n,
+			      " %d", id & 0xffff);
 }
 
 static int get_sensor_index_attr(const char *name, u32 *index,
-- 
1.7.10.4