qpnp-smb2: fix reverse boost when input is removed
When any input is removed it is likely that reverse boost can happen.
Detect reverse boost by checking if the switcher-power-ok interrupt
triggers 3 times within 1 second. If detected then suspend all input.
Once VBUS falls the input can be resumed for the next insertion.
Change-Id: I3dbe4fe426111023b60eefd968c426be7d6057b9
Signed-off-by: Nicholas Troast <ntroast@codeaurora.org>
diff --git a/drivers/power/qcom-charger/smb-lib.h b/drivers/power/qcom-charger/smb-lib.h
index 4be06ff..61168f7 100644
--- a/drivers/power/qcom-charger/smb-lib.h
+++ b/drivers/power/qcom-charger/smb-lib.h
@@ -46,6 +46,7 @@
#define VBUS_CC_SHORT_VOTER "VBUS_CC_SHORT_VOTER"
#define LEGACY_CABLE_VOTER "LEGACY_CABLE_VOTER"
#define PD_INACTIVE_VOTER "PD_INACTIVE_VOTER"
+#define BOOST_BACK_VOTER "BOOST_BACK_VOTER"
enum smb_mode {
PARALLEL_MASTER = 0,
@@ -55,6 +56,7 @@
enum {
QC_CHARGER_DETECTION_WA_BIT = BIT(0),
+ BOOST_BACK_WA = BIT(1),
};
struct smb_regulator {
@@ -240,6 +242,7 @@
irqreturn_t smblib_handle_usb_typec_change(int irq, void *data);
irqreturn_t smblib_handle_dc_plugin(int irq, void *data);
irqreturn_t smblib_handle_high_duty_cycle(int irq, void *data);
+irqreturn_t smblib_handle_switcher_power_ok(int irq, void *data);
int smblib_get_prop_input_suspend(struct smb_charger *chg,
union power_supply_propval *val);