qcom-charger: qpnp-smb2: enable some irqs as a wakeup source

Parallel charging requires the device to wake up when entering taper
charging state in order to reduce the parallel charger's FCC. Enable
the chg-state-change irq as a wakeup source.

Parallel charging requires the device to wake up when the USB ICL
changes in order to enable or disable. Enable the usbin-icl-change
irq as a wakeup source.

When a change is detected on the Type-C CC pins the device should wake
up to handle the change. Enable the type-c-change irq as a wakeup
source.

When VBUS is detected the device should wake up to adjust the state of
DP/DM to allow for proper APSD. Enable the usbin-plugin irq as a wakeup
source.

When APSD finishes the device should wake up to notify the USB, and PD
drivers. Enable the usbin-src-change irq as a wakeup source.

CRs-Fixed: 1030478
Change-Id: I7cdc08d973b5ea711c877f7f2eabbe0fdbbf6fa0
Signed-off-by: Nicholas Troast <ntroast@codeaurora.org>

1 files changed, 14 insertions, 8 deletions

diff --git a/drivers/power/qcom-charger/qpnp-smb2.c b/drivers/power/qcom-charger/qpnp-smb2.c
index 3c934cb0b1f9..542009a03e96 100644
--- a/drivers/power/qcom-charger/qpnp-smb2.c
+++ b/drivers/power/qcom-charger/qpnp-smb2.c
@@ -605,14 +605,16 @@ static int smb2_determine_initial_status(struct smb2 *chip)
  **************************/
 
 struct smb2_irq_info {
-	const char *name;
-	const irq_handler_t handler;
+	const char		*name;
+	const irq_handler_t	handler;
+	const bool		wake;
+	int			irq;
 };
 
-static const struct smb2_irq_info smb2_irqs[] = {
+static struct smb2_irq_info smb2_irqs[] = {
 /* CHARGER IRQs */
 	{ "chg-error",                  smblib_handle_debug },
-	{ "chg-state-change",           smblib_handle_chg_state_change },
+	{ "chg-state-change",           smblib_handle_chg_state_change,	true },
 	{ "step-chg-state-change",      smblib_handle_debug },
 	{ "step-chg-soc-update-fail",   smblib_handle_debug },
 	{ "step-chg-soc-update-request", smblib_handle_debug },
@@ -633,10 +635,10 @@ static const struct smb2_irq_info smb2_irqs[] = {
 	{ "usbin-lt-3p6v",              smblib_handle_debug },
 	{ "usbin-uv",                   smblib_handle_debug },
 	{ "usbin-ov",                   smblib_handle_debug },
-	{ "usbin-plugin",               smblib_handle_usb_plugin },
-	{ "usbin-src-change",           smblib_handle_usb_source_change },
-	{ "usbin-icl-change",           smblib_handle_icl_change },
-	{ "type-c-change",		smblib_handle_usb_typec_change },
+	{ "usbin-plugin",               smblib_handle_usb_plugin,	true },
+	{ "usbin-src-change",           smblib_handle_usb_source_change, true },
+	{ "usbin-icl-change",           smblib_handle_icl_change,	true },
+	{ "type-c-change",		smblib_handle_usb_typec_change,	true },
 /* DC INPUT IRQs */
 	{ "dcin-collapse",              smblib_handle_debug },
 	{ "dcin-lt-3p6v",               smblib_handle_debug },
@@ -705,6 +707,10 @@ static int smb2_request_interrupt(struct smb2 *chip,
 		return rc;
 	}
 
+	smb2_irqs[irq_index].irq = irq;
+	if (smb2_irqs[irq_index].wake)
+		enable_irq_wake(irq);
+
 	return rc;
 }