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staging: ti-soc-thermal: Introduce HAS_HISTORY_BUFFER feature for bandgap

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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>
This commit is contained in:
J Keerthy 2013-04-01 12:04:43 -04:00 committed by Greg Kroah-Hartman
parent 58bccd073b
commit 07a7fb648f
1 changed files with 4 additions and 0 deletions
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4
drivers/staging/ti-soc-thermal/ti-bandgap.h
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@ -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)