qcom: smblib: Only enable hdc and icl irqs on QC/PD chargers

Weak chargers may trigger high duty cycle and input current limiting
irq storms, so only enable them on QC2/3 and PD chargers.

CRs-Fixed: 2018322
Change-Id: I9e54305b74876e0fd15751614964c0ec9bacbfae
Signed-off-by: Harry Yang <harryy@codeaurora.org>

3 files changed, 49 insertions, 0 deletions

diff --git a/drivers/power/supply/qcom/qpnp-smb2.c b/drivers/power/supply/qcom/qpnp-smb2.c
index 771d1cd32714..9b7ccf9f5221 100644
--- a/drivers/power/supply/qcom/qpnp-smb2.c
+++ b/drivers/power/supply/qcom/qpnp-smb2.c
@@ -1616,6 +1616,15 @@ static int smb2_init_hw(struct smb2 *chip)
 	return rc;
 }
 
+static int smb2_post_init(struct smb2 *chip)
+{
+	struct smb_charger *chg = &chip->chg;
+
+	rerun_election(chg->usb_irq_enable_votable);
+
+	return 0;
+}
+
 static int smb2_chg_config_init(struct smb2 *chip)
 {
 	struct smb_charger *chg = &chip->chg;
@@ -2145,6 +2154,8 @@ static int smb2_probe(struct platform_device *pdev)
 		goto cleanup;
 	}
 
+	smb2_post_init(chip);
+
 	smb2_create_debugfs(chip);
 
 	rc = smblib_get_prop_usb_present(chg, &val);
diff --git a/drivers/power/supply/qcom/smb-lib.c b/drivers/power/supply/qcom/smb-lib.c
index 7d2e00dc934b..b84bac016111 100644
--- a/drivers/power/supply/qcom/smb-lib.c
+++ b/drivers/power/supply/qcom/smb-lib.c
@@ -1109,6 +1109,26 @@ static int smblib_hvdcp_hw_inov_dis_vote_callback(struct votable *votable,
 	return rc;
 }
 
+static int smblib_usb_irq_enable_vote_callback(struct votable *votable,
+				void *data, int enable, const char *client)
+{
+	struct smb_charger *chg = data;
+
+	if (!chg->irq_info[INPUT_CURRENT_LIMIT_IRQ].irq ||
+				!chg->irq_info[HIGH_DUTY_CYCLE_IRQ].irq)
+		return 0;
+
+	if (enable) {
+		enable_irq(chg->irq_info[INPUT_CURRENT_LIMIT_IRQ].irq);
+		enable_irq(chg->irq_info[HIGH_DUTY_CYCLE_IRQ].irq);
+	} else {
+		disable_irq(chg->irq_info[INPUT_CURRENT_LIMIT_IRQ].irq);
+		disable_irq(chg->irq_info[HIGH_DUTY_CYCLE_IRQ].irq);
+	}
+
+	return 0;
+}
+
 /*******************
  * VCONN REGULATOR *
  * *****************/
@@ -2470,6 +2490,7 @@ int smblib_set_prop_pd_active(struct smb_charger *chg,
 
 	vote(chg->apsd_disable_votable, PD_VOTER, pd_active, 0);
 	vote(chg->pd_allowed_votable, PD_VOTER, pd_active, 0);
+	vote(chg->usb_irq_enable_votable, PD_VOTER, pd_active, 0);
 
 	/*
 	 * VCONN_EN_ORIENTATION_BIT controls whether to use CC1 or CC2 line
@@ -3304,6 +3325,10 @@ static void smblib_handle_hvdcp_check_timeout(struct smb_charger *chg,
 			/* could be a legacy cable, try doing hvdcp */
 			try_rerun_apsd_for_hvdcp(chg);
 
+		/* enable HDC and ICL irq for QC2/3 charger */
+		if (qc_charger)
+			vote(chg->usb_irq_enable_votable, QC_VOTER, true, 0);
+
 		/*
 		 * HVDCP detection timeout done
 		 * If adapter is not QC2.0/QC3.0 - it is a plain old DCP.
@@ -3554,6 +3579,8 @@ static void smblib_handle_typec_removal(struct smb_charger *chg)
 	vote(chg->pd_disallowed_votable_indirect, CC_DETACHED_VOTER, true, 0);
 	vote(chg->pd_disallowed_votable_indirect, HVDCP_TIMEOUT_VOTER, true, 0);
 	vote(chg->pl_disable_votable, PL_DELAY_HVDCP_VOTER, true, 0);
+	vote(chg->usb_irq_enable_votable, PD_VOTER, false, 0);
+	vote(chg->usb_irq_enable_votable, QC_VOTER, false, 0);
 
 	/* reset votes from vbus_cc_short */
 	vote(chg->hvdcp_disable_votable_indirect, VBUS_CC_SHORT_VOTER,
@@ -4236,6 +4263,15 @@ static int smblib_create_votables(struct smb_charger *chg)
 		return rc;
 	}
 
+	chg->usb_irq_enable_votable = create_votable("USB_IRQ_DISABLE",
+					VOTE_SET_ANY,
+					smblib_usb_irq_enable_vote_callback,
+					chg);
+	if (IS_ERR(chg->usb_irq_enable_votable)) {
+		rc = PTR_ERR(chg->usb_irq_enable_votable);
+		return rc;
+	}
+
 	return rc;
 }
 
diff --git a/drivers/power/supply/qcom/smb-lib.h b/drivers/power/supply/qcom/smb-lib.h
index de236164e6b2..c548c1333134 100644
--- a/drivers/power/supply/qcom/smb-lib.h
+++ b/drivers/power/supply/qcom/smb-lib.h
@@ -32,6 +32,7 @@ enum print_reason {
 #define USER_VOTER			"USER_VOTER"
 #define PD_VOTER			"PD_VOTER"
 #define DCP_VOTER			"DCP_VOTER"
+#define QC_VOTER			"QC_VOTER"
 #define PL_USBIN_USBIN_VOTER		"PL_USBIN_USBIN_VOTER"
 #define USB_PSY_VOTER			"USB_PSY_VOTER"
 #define PL_TAPER_WORK_RUNNING_VOTER	"PL_TAPER_WORK_RUNNING_VOTER"
@@ -272,6 +273,7 @@ struct smb_charger {
 	struct votable		*hvdcp_enable_votable;
 	struct votable		*apsd_disable_votable;
 	struct votable		*hvdcp_hw_inov_dis_votable;
+	struct votable		*usb_irq_enable_votable;
 
 	/* work */
 	struct work_struct	bms_update_work;