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Commit 1f71b411 authored by Ashay Jaiswal's avatar Ashay Jaiswal
Browse files

smb5-lib: add support of DP/DM pulsing for QC2.0 adapter 



This change will enable userspace to control adapter's output
voltage. Userspace can force adapter's output voltage to
5V/9V/12V.

Change-Id: Ib3085c597b70321d44c93f550a8e67173a530514
Signed-off-by: default avatarAshay Jaiswal <ashayj@codeaurora.org>
parent a9e10914

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

+1 −0
Original line number Diff line number Diff line
@@ -370,6 +370,7 @@ static enum power_supply_property smb5_usb_props[] = { 
	POWER_SUPPLY_PROP_PD_VOLTAGE_MIN,

	POWER_SUPPLY_PROP_SDP_CURRENT_MAX,

	POWER_SUPPLY_PROP_CONNECTOR_TYPE,

	POWER_SUPPLY_PROP_VOLTAGE_MAX,

};



static int smb5_usb_get_prop(struct power_supply *psy,

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

+33 −1
Original line number Diff line number Diff line
@@ -1569,6 +1569,18 @@ static int smblib_dm_pulse(struct smb_charger *chg) 
	return rc;

}



static int smblib_force_vbus_voltage(struct smb_charger *chg, u8 val)

{

	int rc;



	rc = smblib_masked_write(chg, CMD_HVDCP_2_REG, val, val);

	if (rc < 0)

		smblib_err(chg, "Couldn't write to CMD_HVDCP_2_REG rc=%d\n",

				rc);



	return rc;

}



int smblib_dp_dm(struct smb_charger *chg, int val)

{

	int target_icl_ua, rc = 0;
@@ -1619,6 +1631,21 @@ int smblib_dp_dm(struct smb_charger *chg, int val) 
		smblib_dbg(chg, PR_PARALLEL, "ICL DOWN ICL=%d reduction=%d\n",

				target_icl_ua, chg->usb_icl_delta_ua);

		break;

	case POWER_SUPPLY_DP_DM_FORCE_5V:

		rc = smblib_force_vbus_voltage(chg, FORCE_5V_BIT);

		if (rc < 0)

			pr_err("Failed to force 5V\n");

		break;

	case POWER_SUPPLY_DP_DM_FORCE_9V:

		rc = smblib_force_vbus_voltage(chg, FORCE_9V_BIT);

		if (rc < 0)

			pr_err("Failed to force 9V\n");

		break;

	case POWER_SUPPLY_DP_DM_FORCE_12V:

		rc = smblib_force_vbus_voltage(chg, FORCE_12V_BIT);

		if (rc < 0)

			pr_err("Failed to force 12V\n");

		break;

	case POWER_SUPPLY_DP_DM_ICL_UP:

	default:

		break;
@@ -1745,8 +1772,13 @@ int smblib_get_prop_usb_voltage_max(struct smb_charger *chg, 
{

	switch (chg->real_charger_type) {

	case POWER_SUPPLY_TYPE_USB_HVDCP:

	case POWER_SUPPLY_TYPE_USB_HVDCP_3:

	case POWER_SUPPLY_TYPE_USB_PD:

		if (chg->smb_version == PMI632_SUBTYPE)

			val->intval = MICRO_9V;

		else

			val->intval = MICRO_12V;

		break;

	default:

		val->intval = MICRO_5V;

		break;

drivers/power/supply/qcom/smb5-reg.h

+2 −0
Original line number Diff line number Diff line
@@ -178,6 +178,8 @@ enum { 
#define APSD_RERUN_BIT				BIT(0)



#define CMD_HVDCP_2_REG				(USBIN_BASE + 0x43)

#define FORCE_12V_BIT				BIT(5)

#define FORCE_9V_BIT				BIT(4)

#define FORCE_5V_BIT				BIT(3)

#define SINGLE_DECREMENT_BIT			BIT(1)

#define SINGLE_INCREMENT_BIT			BIT(0)