[PATCH 11/14] staging: ti-soc-thermal: Introduce HAS_HISTORY_BUFFER feature for bandgap

[Eduardo Valentin]

From: J Keerthy <j-keerthy at ti.com>

The patch introduces HISTORY_BUFFER feature. This is present in OMAP5 bandgap
and it is a hardware history buffer of previously read temperatures.

Signed-off-by: J Keerthy <j-keerthy at ti.com>
Signed-off-by: Eduardo Valentin <eduardo.valentin at ti.com>
---
 drivers/staging/ti-soc-thermal/ti-bandgap.h |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/drivers/staging/ti-soc-thermal/ti-bandgap.h b/drivers/staging/ti-soc-thermal/ti-bandgap.h
index 8ee4857..e29e357 100644
--- a/drivers/staging/ti-soc-thermal/ti-bandgap.h
+++ b/drivers/staging/ti-soc-thermal/ti-bandgap.h
@@ -315,6 +315,9 @@ struct ti_temp_sensor {
  * TI_BANDGAP_FEATURE_COUNTER_DELAY - used when the bandgap device features
  *	a delay programming based on distinct values.
  *
+ * TI_BANDGAP_FEATURE_HISTORY_BUFFER - used when the bandgap device features
+ *	a history buffer of temperatures.
+ *
  * TI_BANDGAP_HAS(b, f) - macro to check if a bandgap device is capable of a
  *      specific feature (above) or not. Return non-zero, if yes.
  */
@@ -327,6 +330,7 @@ struct ti_temp_sensor {
 #define TI_BANDGAP_FEATURE_CLK_CTRL		BIT(6)
 #define TI_BANDGAP_FEATURE_FREEZE_BIT		BIT(7)
 #define TI_BANDGAP_FEATURE_COUNTER_DELAY	BIT(8)
+#define TI_BANDGAP_FEATURE_HISTORY_BUFFER	BIT(9)
 #define TI_BANDGAP_HAS(b, f)			\
 			((b)->conf->features & TI_BANDGAP_FEATURE_ ## f)
 
-- 
1.7.7.1.488.ge8e1c