diff --git a/[refs] b/[refs]
index d5a9eef1a940..2d15ffd2859f 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 204705992112e75f7f69cca191d89bf1104df7c2
+refs/heads/master: 2577e937cb8a4cc6967c4af88546c5939c78dbc5
diff --git a/trunk/drivers/staging/omap-thermal/omap-bandgap.c b/trunk/drivers/staging/omap-thermal/omap-bandgap.c
index 0068c6651989..8279cca0a616 100644
--- a/trunk/drivers/staging/omap-thermal/omap-bandgap.c
+++ b/trunk/drivers/staging/omap-thermal/omap-bandgap.c
@@ -233,6 +233,17 @@ static irqreturn_t omap_bandgap_tshut_irq_handler(int irq, void *data)
 
 /***   Helper functions which manipulate conversion ADC <-> mi Celsius   ***/
 
+/**
+ * omap_bandgap_adc_to_mcelsius() - converts an ADC value to mCelsius scale
+ * @bg_ptr: struct omap_bandgap pointer
+ * @id: sensor id
+ * @adc_val: value in ADC representation
+ * @t: address where to write the resulting temperature in mCelsius
+ *
+ * Simple conversion from ADC representation to mCelsius. In case the ADC value
+ * is out of the ADC conv table range, it returns -ERANGE, 0 on success.
+ * The conversion table is indexed by the ADC values.
+ */
 static
 int omap_bandgap_adc_to_mcelsius(struct omap_bandgap *bg_ptr, int id,
 				 int adc_val, int *t)