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Commit 2bf2ab5a authored by Harry Yang's avatar Harry Yang
Browse files

power: smb5: enable smb1390 Wireless charging 



Enable SMB1390 wireless charging when DC is the only input power
source. Raise wireless output voltage to twice that of vph_power
on start.

Change-Id: Iece540bdfcdd8f9309c9dcd1160fe976bdd804d6
Signed-off-by: default avatarHarry Yang <harryy@codeaurora.org>
parent bf4ec895

drivers/power/supply/qcom/smb5-lib.c

+57 −0
Original line number Diff line number Diff line
@@ -3898,8 +3898,65 @@ irqreturn_t dc_plugin_irq_handler(int irq, void *data) 
{

	struct smb_irq_data *irq_data = data;

	struct smb_charger *chg = irq_data->parent_data;

	union power_supply_propval pval;

	bool dcin_present, vbus_present;

	int rc, wireless_vout = 0;



	rc = iio_read_channel_processed(chg->iio.vph_v_chan,

			&wireless_vout);

	if (rc < 0)

		return IRQ_HANDLED;



	wireless_vout *= 2;

	wireless_vout /= 100000;

	wireless_vout *= 100000;



	rc = smblib_get_prop_dc_present(chg, &pval);

	if (rc < 0)

		return IRQ_HANDLED;



	dcin_present = pval.intval;



	rc = smblib_get_prop_usb_present(chg, &pval);

	if (rc < 0) {

		smblib_err(chg, "Couldn't get usb present rc = %d\n",

				rc);

		return IRQ_HANDLED;

	}



	vbus_present = pval.intval;



	if (dcin_present) {

		if (!vbus_present && chg->sec_cp_present) {

			pval.intval = wireless_vout;

			rc = smblib_set_prop_voltage_wls_output(chg, &pval);

			if (rc < 0)

				dev_err(chg->dev, "Couldn't set dc voltage to 2*vph  rc=%d\n",

					rc);



			chg->cp_reason = POWER_SUPPLY_CP_WIRELESS;

			rc = smblib_select_sec_charger(chg,

						POWER_SUPPLY_CHARGER_SEC_CP);

			if (rc < 0)

				dev_err(chg->dev, "Couldn't enable secondary chargers  rc=%d\n",

					rc);

		}

	} else if (chg->cp_reason == POWER_SUPPLY_CP_WIRELESS) {

		chg->cp_reason = POWER_SUPPLY_CP_NONE;

		rc = smblib_select_sec_charger(chg,

			chg->sec_pl_present ?  POWER_SUPPLY_CHARGER_SEC_PL :

						POWER_SUPPLY_CHARGER_SEC_NONE);

		if (rc < 0)

			dev_err(chg->dev,

				"Couldn't disable secondary charger rc=%d\n",

						rc);

	}



	power_supply_changed(chg->dc_psy);



	smblib_dbg(chg, PR_WLS, "dcin_present= %d, usbin_present= %d, cp_reason = %d\n",

			dcin_present, vbus_present, chg->cp_reason);



	return IRQ_HANDLED;

}