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Commit 59a77e7c authored by Abhijeet Dharmapurikar's avatar Abhijeet Dharmapurikar
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power: qpnp-smbcharger: add debug prints when usb psy is updated 



Add debug prints under PR_MISC category to help verify the
communications with usb power supply.

Also take this opportunity to clean up some excessive prints in
the smbchg_external_power_changed function.

Change-Id: Id5463d42c2f40776d26d1da91106f43956e5ee91
Signed-off-by: default avatarAbhijeet Dharmapurikar <adharmap@codeaurora.org>
parent 1b7ff05f

drivers/power/qpnp-smbcharger.c

+16 −9
Original line number Diff line number Diff line
@@ -1166,6 +1166,7 @@ static void smbchg_usb_update_online_work(struct work_struct *work) 


	mutex_lock(&chip->usb_set_online_lock);

	if (chip->usb_online != online) {

		pr_smb(PR_MISC, "setting usb psy online = %d\n", online);

		power_supply_set_online(chip->usb_psy, online);

		chip->usb_online = online;

	}
@@ -3113,18 +3114,12 @@ static void smbchg_external_power_changed(struct power_supply *psy) 


	rc = chip->usb_psy->get_property(chip->usb_psy,

				POWER_SUPPLY_PROP_CHARGING_ENABLED, &prop);

	if (rc < 0)

		pr_smb(PR_MISC, "could not read USB charge_en, rc=%d\n",

				rc);

	else

	if (rc == 0)

		smbchg_usb_en(chip, prop.intval, REASON_POWER_SUPPLY);



	rc = chip->usb_psy->get_property(chip->usb_psy,

				POWER_SUPPLY_PROP_CURRENT_MAX, &prop);

	if (rc < 0)

		dev_err(chip->dev,

			"could not read USB current_max property, rc=%d\n", rc);

	else

	if (rc != 0)

		current_limit = prop.intval / 1000;



	pr_smb(PR_MISC, "current_limit = %d\n", current_limit);
@@ -3850,6 +3845,7 @@ static void handle_usb_removal(struct smbchg_chip *chip) 
		power_supply_set_dp_dm(chip->usb_psy,

				POWER_SUPPLY_DP_DM_DPR_DMR);

		schedule_work(&chip->usb_set_online_work);

		pr_smb(PR_MISC, "setting usb psy health UNKNOWN\n");

		rc = power_supply_set_health_state(chip->usb_psy,

				POWER_SUPPLY_HEALTH_UNKNOWN);

		if (rc)
@@ -3914,6 +3910,9 @@ static void handle_usb_insertion(struct smbchg_chip *chip) 
			 * if the handle_usb_insertion was triggered from

			 * the falling edge of an USBIN_OV interrupt

			 */

			pr_smb(PR_MISC, "setting usb psy health %s\n",

					chip->very_weak_charger

					? "UNSPEC_FAILURE" : "GOOD");

			rc = power_supply_set_health_state(chip->usb_psy,

					chip->very_weak_charger

					? POWER_SUPPLY_HEALTH_UNSPEC_FAILURE
@@ -4081,6 +4080,8 @@ static void increment_aicl_count(struct smbchg_chip *chip) 
			bad_charger = true;

		}

		if (bad_charger) {

			pr_smb(PR_MISC,

				"setting usb psy health UNSPEC_FAILURE\n");

			rc = power_supply_set_health_state(chip->usb_psy,

					POWER_SUPPLY_HEALTH_UNSPEC_FAILURE);

			if (rc)
@@ -4598,6 +4599,7 @@ static irqreturn_t usbin_ov_handler(int irq, void *_chip) 
	if (reg & USBIN_OV_BIT) {

		chip->usb_ov_det = true;

		if (chip->usb_psy) {

			pr_smb(PR_MISC, "setting usb psy health OV\n");

			rc = power_supply_set_health_state(chip->usb_psy,

					POWER_SUPPLY_HEALTH_OVERVOLTAGE);

			if (rc)
@@ -4677,6 +4679,7 @@ static irqreturn_t usbin_uv_handler(int irq, void *_chip) 
			if (rc)

				pr_err("could not enable aicl reruns: %d", rc);

		}

		pr_smb(PR_MISC, "setting usb psy health UNSPEC_FAILURE\n");

		rc = power_supply_set_health_state(chip->usb_psy,

				POWER_SUPPLY_HEALTH_UNSPEC_FAILURE);

		if (rc)
@@ -4822,8 +4825,11 @@ static irqreturn_t usbid_change_handler(int irq, void *_chip) 
	pr_smb(PR_INTERRUPT, "triggered\n");



	otg_present = is_otg_present(chip);

	if (chip->usb_psy)

	if (chip->usb_psy) {

		pr_smb(PR_MISC, "setting usb psy OTG = %d\n",

				otg_present ? 1 : 0);

		power_supply_set_usb_otg(chip->usb_psy, otg_present ? 1 : 0);

	}

	if (otg_present)

		pr_smb(PR_STATUS, "OTG detected\n");
@@ -6121,6 +6127,7 @@ static int smbchg_probe(struct spmi_device *spmi) 
		goto unregister_led_class;

	}



	pr_smb(PR_MISC, "setting usb psy present = %d\n", chip->usb_present);

	power_supply_set_present(chip->usb_psy, chip->usb_present);



	dump_regs(chip);