Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit de321e13 authored by Ankit Sharma's avatar Ankit Sharma Committed by Ashay Jaiswal
Browse files

power: smb-lib: Add USB notification 



In designs without the pd-phy interface the usb
insertion/removal and CC_orientation needs to be
notified to the usb stack by the charger driver.
Add this notification support via the extcon interface.

CRs-Fixed: 2086422
Change-Id: I22eae3f818859c8fbd08066f690517d4210c7dd3
Signed-off-by: default avatarAnkit Sharma <ansharma@codeaurora.org>
parent d41da87e

drivers/power/supply/qcom/smb-lib.c

+45 −0
Original line number Diff line number Diff line
@@ -3642,6 +3642,37 @@ static void smblib_force_legacy_icl(struct smb_charger *chg, int pst) 
	}

}



static void smblib_notify_extcon_props(struct smb_charger *chg, int id)

{

	union extcon_property_value val;

	union power_supply_propval prop_val;



	smblib_get_prop_typec_cc_orientation(chg, &prop_val);

	val.intval = ((prop_val.intval == 2) ? 1 : 0);

	extcon_set_property(chg->extcon, id,

				EXTCON_PROP_USB_TYPEC_POLARITY, val);



	val.intval = true;

	extcon_set_property(chg->extcon, id,

				EXTCON_PROP_USB_SS, val);

}



static void smblib_notify_device_mode(struct smb_charger *chg, bool enable)

{

	if (enable)

		smblib_notify_extcon_props(chg, EXTCON_USB);



	extcon_set_state_sync(chg->extcon, EXTCON_USB, enable);

}



static void smblib_notify_usb_host(struct smb_charger *chg, bool enable)

{

	if (enable)

		smblib_notify_extcon_props(chg, EXTCON_USB_HOST);



	extcon_set_state_sync(chg->extcon, EXTCON_USB_HOST, enable);

}



#define HVDCP_DET_MS 2500

static void smblib_handle_apsd_done(struct smb_charger *chg, bool rising)

{
@@ -3664,6 +3695,8 @@ static void smblib_handle_apsd_done(struct smb_charger *chg, bool rising) 
		/* if not DCP then no hvdcp timeout happens. Enable pd here */

		vote(chg->pd_disallowed_votable_indirect, HVDCP_TIMEOUT_VOTER,

				false, 0);

		if (chg->use_extcon)

			smblib_notify_device_mode(chg, true);

		break;

	case OCP_CHARGER_BIT:

	case FLOAT_CHARGER_BIT:
@@ -3749,6 +3782,10 @@ static void typec_sink_insertion(struct smb_charger *chg) 
	 */

	vote(chg->pd_disallowed_votable_indirect, HVDCP_TIMEOUT_VOTER,

			false, 0);

	if (chg->use_extcon) {

		smblib_notify_usb_host(chg, true);

		chg->otg_present = true;

	}

}



static void typec_sink_removal(struct smb_charger *chg)
@@ -3899,6 +3936,14 @@ static void smblib_handle_typec_removal(struct smb_charger *chg) 


	typec_sink_removal(chg);

	smblib_update_usb_type(chg);



	if (chg->use_extcon) {

		if (chg->otg_present)

			smblib_notify_usb_host(chg, false);

		else

			smblib_notify_device_mode(chg, false);

	}

	chg->otg_present = false;

}



static void smblib_handle_typec_insertion(struct smb_charger *chg)

drivers/power/supply/qcom/smb-lib.h

+5 −0
Original line number Diff line number Diff line
@@ -144,6 +144,9 @@ static const unsigned int smblib_extcon_cable[] = { 
	EXTCON_NONE,

};



/* EXTCON_USB and EXTCON_USB_HOST are mutually exclusive */

static const u32 smblib_extcon_exclusive[] = {0x3, 0};



struct smb_regulator {

	struct regulator_dev	*rdev;

	struct regulator_desc	rdesc;
@@ -331,6 +334,8 @@ struct smb_charger { 
	int			usb_icl_change_irq_enabled;

	u32			jeita_status;

	u8			float_cfg;

	bool			use_extcon;

	bool			otg_present;



	/* workaround flag */

	u32			wa_flags;