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Commit 2bf1521d authored by Anirudh Ghayal's avatar Anirudh Ghayal
Browse files

power: qpnp-smb2: Add a DT property to disable USB power-delivery (PD) 



Platforms where the USB PHY is not enabled to support USB PD, the
PD support from PMIC can be disabled.

Change-Id: Ibc69700642c48d17c0dc54361fb1e0c011d572ae
Signed-off-by: default avatarAnirudh Ghayal <aghayal@codeaurora.org>
parent 81404d4d

Documentation/devicetree/bindings/power/qpnp-smb2.txt

+5 −0
Original line number Diff line number Diff line
@@ -182,6 +182,11 @@ Charger specific properties: 
  Definition: Specifies the deglitch interval for OTG detection.

		If the value is not present, 50 msec is used as default.



- qcom,pd-not-supported

  Usage:      optional

  Value type: bool

  Definition: Option to indicate if the platform supports USB PD (power delivery).



=============================================

Second Level Nodes - SMB2 Charger Peripherals

=============================================

drivers/power/qpnp-smb2.c

+6 −0
Original line number Diff line number Diff line
@@ -167,6 +167,7 @@ struct smb_dt_props { 
	bool	no_battery;

	bool	hvdcp_disable;

	bool	auto_recharge_soc;

	bool	no_pd;

};



struct smb2 {
@@ -202,6 +203,9 @@ static int smb2_parse_dt(struct smb2 *chip) 
	chip->dt.no_battery = of_property_read_bool(node,

						"qcom,batteryless-platform");



	chip->dt.no_pd = of_property_read_bool(node,

						"qcom,pd-not-supported");



	chg->skip_usb_notification = of_property_read_bool(node,

					"qcom,skip-usb-notification");
@@ -1154,6 +1158,8 @@ static int smb2_init_hw(struct smb2 *chip) 
			chg->micro_usb_mode, 0);

	vote(chg->hvdcp_enable_votable, MICRO_USB_VOTER,

			chg->micro_usb_mode, 0);

	vote(chg->pd_disallowed_votable_indirect, PD_NOT_SUPPORTED_VOTER,

			chip->dt.no_pd, 0);



	/*

	 * AICL configuration:

drivers/power/smb-lib.c

+1 −1
Original line number Diff line number Diff line
@@ -2720,7 +2720,7 @@ static int __smblib_set_prop_pd_active(struct smb_charger *chg, bool pd_active) 


		hvdcp = stat & QC_CHARGER_BIT;

		vote(chg->apsd_disable_votable, PD_VOTER, false, 0);

		vote(chg->pd_allowed_votable, PD_VOTER, true, 0);

		vote(chg->pd_allowed_votable, PD_VOTER, false, 0);

		vote(chg->usb_irq_enable_votable, PD_VOTER, false, 0);

		vote(chg->hvdcp_disable_votable_indirect, PD_INACTIVE_VOTER,

								false, 0);

drivers/power/smb-lib.h

+1 −0
Original line number Diff line number Diff line
@@ -64,6 +64,7 @@ enum print_reason { 
#define OTG_DELAY_VOTER			"OTG_DELAY_VOTER"

#define USBIN_I_VOTER			"USBIN_I_VOTER"

#define WEAK_CHARGER_VOTER		"WEAK_CHARGER_VOTER"

#define PD_NOT_SUPPORTED_VOTER		"PD_NOT_SUPPORTED_VOTER"



#define VCONN_MAX_ATTEMPTS	3

#define OTG_MAX_ATTEMPTS	3