ACPI / PMIC: support PMIC operation region for XPower AXP288

The Baytrail-T-CR platform firmware has defined two customized operation
regions for PMIC chip Dollar Cove XPower - one is for power resource
handling and one is for thermal just like the CrystalCove one. This patch
adds support for them on top of the common PMIC opregion region code.

Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Acked-by: Lee Jones <lee.jones@linaro.org> for the MFD part
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index df81645..bc68252 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -409,6 +409,12 @@
 	help
 	  This config adds ACPI operation region support for CrystalCove PMIC.
 
+config XPOWER_PMIC_OPREGION
+	bool "ACPI operation region support for XPower AXP288 PMIC"
+	depends on AXP288_ADC = y
+	help
+	  This config adds ACPI operation region support for XPower AXP288 PMIC.
+
 endif
 
 endif	# ACPI