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authorJ Keerthy <j-keerthy@ti.com>2013-04-01 12:04:43 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-04-01 12:27:30 -0700
commit07a7fb648f7fad2c16d28b1a8e8e773aa16e1b90 (patch)
treeb950006ddee57bc70b4b87c8da504f447d5145e0 /drivers/staging/ti-soc-thermal
parent58bccd073b818aa286b361c161146f393d378d83 (diff)
downloadlinux-07a7fb648f7fad2c16d28b1a8e8e773aa16e1b90.tar.gz
staging: ti-soc-thermal: Introduce HAS_HISTORY_BUFFER feature for bandgap
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@ti.com> Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/ti-soc-thermal')
-rw-r--r--drivers/staging/ti-soc-thermal/ti-bandgap.h4
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 8ee4857e5ff..e29e357fd19 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)