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Commit 83a82dec authored by Harry Yang's avatar Harry Yang Committed by Guru Das Srinagesh
Browse files

power: smb5-lib: Export SKIN thermal health on wireless charging 



In PM8150B, ADC skin channel is used for wireless receiver temp.

Expose SKIN thermal health via CONNECTOR_HEALTH during DC wireless
charging.

CRs-Fixed: 2390642
Change-Id: I8c5599a62f6cf67c5e7c5af09af4bdfa152751c4
Signed-off-by: default avatarHarry Yang <harryy@codeaurora.org>
parent 5a791bdd

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

+51 −1
Original line number Diff line number Diff line
@@ -3694,7 +3694,7 @@ int smblib_get_prop_scope(struct smb_charger *chg, 
	return 0;

}



int smblib_get_prop_connector_health(struct smb_charger *chg)

static int smblib_get_typec_connector_temp_status(struct smb_charger *chg)

{

	int rc;

	u8 stat;
@@ -3737,6 +3737,56 @@ int smblib_get_prop_connector_health(struct smb_charger *chg) 
	return POWER_SUPPLY_HEALTH_COOL;

}



static int smblib_get_skin_temp_status(struct smb_charger *chg)

{

	int rc;

	u8 stat;



	rc = smblib_read(chg, SKIN_TEMP_STATUS_REG, &stat);

	if (rc < 0) {

		smblib_err(chg, "Couldn't read SKIN_TEMP_STATUS_REG, rc=%d\n",

				rc);

		return POWER_SUPPLY_HEALTH_UNKNOWN;

	}



	if (stat & SKIN_TEMP_RST_BIT)

		return POWER_SUPPLY_HEALTH_OVERHEAT;



	if (stat & SKIN_TEMP_UB_BIT)

		return POWER_SUPPLY_HEALTH_HOT;



	if (stat & SKIN_TEMP_LB_BIT)

		return POWER_SUPPLY_HEALTH_WARM;



	return POWER_SUPPLY_HEALTH_COOL;

}



int smblib_get_prop_connector_health(struct smb_charger *chg)

{

	bool dc_present, usb_present;

	int input_present;

	int rc;



	rc = smblib_is_input_present(chg, &input_present);

	if (rc < 0)

		return POWER_SUPPLY_HEALTH_UNKNOWN;



	dc_present = input_present & INPUT_PRESENT_DC;

	usb_present = input_present & INPUT_PRESENT_USB;



	if (usb_present)

		return smblib_get_typec_connector_temp_status(chg);



	/*

	 * In PM8150B, SKIN channel measures Wireless charger receiver

	 * temp, used to regulate DC ICL.

	 */

	if (chg->smb_version == PM8150B_SUBTYPE && dc_present)

		return smblib_get_skin_temp_status(chg);



	return POWER_SUPPLY_HEALTH_COOL;

}



static int get_rp_based_dcp_current(struct smb_charger *chg, int typec_mode)

{

	int rp_ua;

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

+6 −0
Original line number Diff line number Diff line
@@ -468,6 +468,12 @@ enum { 
#define DIE_TEMP_UB_BIT				BIT(1)

#define DIE_TEMP_LB_BIT				BIT(0)



#define SKIN_TEMP_STATUS_REG			(MISC_BASE + 0x08)

#define SKIN_TEMP_SHDN_BIT			BIT(3)

#define SKIN_TEMP_RST_BIT			BIT(2)

#define SKIN_TEMP_UB_BIT			BIT(1)

#define SKIN_TEMP_LB_BIT			BIT(0)



#define CONNECTOR_TEMP_STATUS_REG		(MISC_BASE + 0x09)

#define CONNECTOR_TEMP_SHDN_BIT			BIT(3)

#define CONNECTOR_TEMP_RST_BIT			BIT(2)