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Commit 966277c2 authored by Guru Das Srinagesh's avatar Guru Das Srinagesh Committed by Harry Yang
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power: smb5: Support HW-autonomous HVDCP operation 



Add boolean DT parameter "hvdcp-autonomous-enable" to enable
HVDCP HW-autonomous operation.

Change-Id: Ib0bf2db764d81debb0c9c6f906486415cdfee85b
Signed-off-by: default avatarGuru Das Srinagesh <gurus@codeaurora.org>
parent 4b54d9aa

Documentation/devicetree/bindings/power/supply/qcom/qpnp-smb5.txt

+6 −0
Original line number Diff line number Diff line
@@ -263,6 +263,12 @@ Charger specific properties: 
	Definition: Boolean flag which when present enables mositure protection

		    feature for uUSB connector type.



- qcom,hvdcp-autonomous-enable

  Usage:      optional

  Value type: bool

  Definition: Boolean flag which when present enables hardware-controlled

		operation of HVDCP.



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

Second Level Nodes - SMB5 Charger Peripherals

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

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

+10 −2
Original line number Diff line number Diff line
@@ -187,6 +187,7 @@ struct smb_dt_props { 
	int			chg_inhibit_thr_mv;

	bool			no_battery;

	bool			hvdcp_disable;

	bool			hvdcp_autonomous;

	int			sec_charger_config;

	int			auto_recharge_soc;

	int			auto_recharge_vbat_mv;
@@ -407,6 +408,9 @@ static int smb5_parse_dt(struct smb5 *chip) 
						"qcom,hvdcp-disable");

	chg->hvdcp_disable = chip->dt.hvdcp_disable;



	chip->dt.hvdcp_autonomous = of_property_read_bool(node,

						"qcom,hvdcp-autonomous-enable");



	rc = of_property_read_u32(node, "qcom,chg-inhibit-threshold-mv",

				&chip->dt.chg_inhibit_thr_mv);

	if (!rc && (chip->dt.chg_inhibit_thr_mv < 0 ||
@@ -1845,11 +1849,15 @@ static int smb5_init_hw(struct smb5 *chip) 
	}



	/*

	 * Disable HVDCP autonomous mode operation by default. Additionally, if

	 * specified in DT: disable HVDCP and HVDCP authentication algorithm.

	 * Disable HVDCP autonomous mode operation by default, providing a DT

	 * knob to turn it on if required. Additionally, if specified in DT,

	 * disable HVDCP and HVDCP authentication algorithm.

	 */

	val = (chg->hvdcp_disable) ? 0 :

		(HVDCP_AUTH_ALG_EN_CFG_BIT | HVDCP_EN_BIT);

	if (chip->dt.hvdcp_autonomous)

		val |= HVDCP_AUTONOMOUS_MODE_EN_CFG_BIT;



	rc = smblib_masked_write(chg, USBIN_OPTIONS_1_CFG_REG,

			(HVDCP_AUTH_ALG_EN_CFG_BIT | HVDCP_EN_BIT |

			 HVDCP_AUTONOMOUS_MODE_EN_CFG_BIT),