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Commit 47803535 authored by Nicholas Troast's avatar Nicholas Troast
Browse files

power: smb138x-charger: Type-C support 



SMB138X is capable of Type-C detection. Add support for it.

CRs-Fixed: 1023141
Change-Id: I549de835c35700fa914c855a4a02e064c17aad8c
Signed-off-by: default avatarNicholas Troast <ntroast@codeaurora.org>
parent 86017c34

drivers/power/smb138x-charger.c

+40 −1
Original line number Diff line number Diff line
@@ -756,6 +756,43 @@ static irqreturn_t smb138x_handle_usb_source_change(int irq, void *data) 
	return IRQ_HANDLED;

}



static irqreturn_t smb138x_handle_usb_typec_change(int irq, void *data)

{

	struct smb_irq_data *irq_data = data;

	struct smb_charger *chg = irq_data->parent_data;

	union power_supply_propval otg = {0, };

	int rc;

	u8 stat;



	if (!chg->usb_psy)

		return IRQ_HANDLED;



	rc = smb138x_read(chg, TYPE_C_STATUS_4_REG, &stat);

	if (rc < 0) {

		pr_err("Couldn't read TYPE_C_STATUS_4 rc=%d\n", rc);

		return IRQ_HANDLED;

	}

	smb_dbg(chg, PR_REGISTER, "TYPE_C_STATUS_4 = 0x%02x\n", stat);



	if (stat & TYPEC_VBUS_ERROR_STATUS_BIT) {

		dev_err(chg->dev, "IRQ: vbus-error rising\n");

		return IRQ_HANDLED;

	}



	if (stat & TYPEC_DEBOUNCE_DONE_STATUS_BIT)

		otg.intval = (bool)(stat & UFP_DFP_MODE_STATUS_BIT);



	rc = chg->usb_psy->set_property(chg->usb_psy, POWER_SUPPLY_PROP_USB_OTG,

					&otg);

	if (rc < 0)

		pr_err("Couldn't %s OTG rc=%d\n",

			otg.intval ? "enable" : "disable", rc);



	power_supply_changed(chg->usb_psy);



	return IRQ_HANDLED;

}



static void smb138x_usb_init_work(struct work_struct *work)

{

	struct smb138x *chip = container_of(work, struct smb138x,
@@ -765,6 +802,8 @@ static void smb138x_usb_init_work(struct work_struct *work) 
	power_supply_unreg_notifier(&chip->nb);

	smb138x_handle_usb_plugin(0, &irq_data);

	smb138x_handle_usb_source_change(0, &irq_data);

	if (!chip->dt.micro_usb)

		smb138x_handle_usb_typec_change(0, &irq_data);

}



static enum power_supply_property smb138x_batt_props[] = {
@@ -1024,7 +1063,7 @@ static const struct smb138x_irq_info smb138x_irqs[] = { 
	{ "usbin-plugin",		smb138x_handle_usb_plugin },

	{ "usbin-src-change",		smb138x_handle_usb_source_change },

	{ "usbin-icl-change",		smb138x_handle_debug },

	{ "type-c-change",		smb138x_handle_debug },

	{ "type-c-change",		smb138x_handle_usb_typec_change },

/* DC INPUT IRQs */

	{ "dcin-collapse",		smb138x_handle_debug },

	{ "dcin-lt-3p6v",		smb138x_handle_debug },