ab8500-fg: Add power cut feature for ab8505 and ab8540

Add support for a power cut feature which allows user to
configure when ab8505 and ab8540 based platforms should shut
down system due to low battery.

Signed-off-by: Lee Jones <lee.jones@linaro.org>

2 files changed, 28 insertions, 0 deletions

diff --git a/include/linux/mfd/abx500.h b/include/linux/mfd/abx500.h
index 9ead60bc66b7..188aedc322c2 100644
--- a/include/linux/mfd/abx500.h
+++ b/include/linux/mfd/abx500.h
@@ -89,6 +89,11 @@ struct abx500_fg;
  *                              points.
  * @maint_thres                 This is the threshold where we stop reporting
  *                              battery full while in maintenance, in per cent
+ * @pcut_enable:                        Enable power cut feature in ab8505
+ * @pcut_max_time:              Max time threshold
+ * @pcut_flag_time:             Flagtime threshold
+ * @pcut_max_restart:           Max number of restarts
+ * @pcut_debounce_time:         Sets battery debounce time
  */
 struct abx500_fg_parameters {
         int recovery_sleep_timer;
@@ -106,6 +111,11 @@ struct abx500_fg_parameters {
         int battok_raising_th_sel1;
         int user_cap_limit;
         int maint_thres;
+        bool pcut_enable;
+        u8 pcut_max_time;
+        u8 pcut_flag_time;
+        u8 pcut_max_restart;
+        u8 pcut_debounce_time;
 };
 
 /**
diff --git a/include/linux/mfd/abx500/ab8500-bm.h b/include/linux/mfd/abx500/ab8500-bm.h
index 8d35bfe164c8..0efbe0efee7f 100644
--- a/include/linux/mfd/abx500/ab8500-bm.h
+++ b/include/linux/mfd/abx500/ab8500-bm.h
@@ -235,6 +235,14 @@
 /* Battery type */
 #define BATTERY_UNKNOWN                 00
 
+/* Registers for pcut feature in ab8505 and ab9540 */
+#define AB8505_RTC_PCUT_CTL_STATUS_REG  0x12
+#define AB8505_RTC_PCUT_TIME_REG        0x13
+#define AB8505_RTC_PCUT_MAX_TIME_REG    0x14
+#define AB8505_RTC_PCUT_FLAG_TIME_REG   0x15
+#define AB8505_RTC_PCUT_RESTART_REG     0x16
+#define AB8505_RTC_PCUT_DEBOUNCE_REG    0x17
+
 /**
  * struct res_to_temp - defines one point in a temp to res curve. To
  * be used in battery packs that combines the identification resistor with a
@@ -283,6 +291,11 @@ struct ab8500_fg;
  *                              points.
  * @maint_thres                 This is the threshold where we stop reporting
  *                              battery full while in maintenance, in per cent
+ * @pcut_enable:                        Enable power cut feature in ab8505
+ * @pcut_max_time:              Max time threshold
+ * @pcut_flag_time:             Flagtime threshold
+ * @pcut_max_restart:           Max number of restarts
+ * @pcut_debunce_time:  Sets battery debounce time
  */
 struct ab8500_fg_parameters {
         int recovery_sleep_timer;
@@ -299,6 +312,11 @@ struct ab8500_fg_parameters {
         int battok_raising_th_sel1;
         int user_cap_limit;
         int maint_thres;
+        bool pcut_enable;
+        u8 pcut_max_time;
+        u8 pcut_flag_time;
+        u8 pcut_max_restart;
+        u8 pcut_debunce_time;
 };
 
 /**