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Commit 2aaa840a authored by Subbaraman Narayanamurthy's avatar Subbaraman Narayanamurthy
Browse files

regulator: qpnp-amoled: add support to configure single phase for IBB 



On certain PMICs like PM8350B, IBB can be configured in single or
dual or auto phase based on the panel configuration. Though dual
or auto phase is mostly used, forced single phase configuration
is needed for some hardware. Add support for it.

Change-Id: Ib7e9957485a45dccbcd0e9dc35e7a370a28ea52a
Signed-off-by: default avatarSubbaraman Narayanamurthy <subbaram@codeaurora.org>
parent 866c5caa

drivers/regulator/qpnp-amoled-regulator.c

+18 −1
Original line number Diff line number Diff line
@@ -72,6 +72,7 @@ struct ibb_regulator { 
	/* DT params */

	bool			swire_control;

	bool			pd_control;

	bool			single_phase;

};



struct qpnp_amoled {
@@ -301,6 +302,10 @@ static int qpnp_ibb_regulator_set_load(struct regulator_dev *rdev, 
	if (!is_phase_ctrl_supported(&chip->ibb))

		return 0;



	/* For IBB single phase, it's configured only once. */

	if (chip->ibb.single_phase)

		return 0;



	if (load_uA < 0)

		return -EINVAL;

	else if (load_uA <= SINGLE_PHASE_ILIMIT_UA)
@@ -491,6 +496,7 @@ static int qpnp_amoled_regulator_register(struct qpnp_amoled *chip, 
static int qpnp_amoled_hw_init(struct qpnp_amoled *chip)

{

	int rc;

	u8 val;



	rc = qpnp_amoled_regulator_register(chip, OLEDB);

	if (rc < 0) {
@@ -513,6 +519,15 @@ static int qpnp_amoled_hw_init(struct qpnp_amoled *chip) 
		return rc;

	}



	if (is_phase_ctrl_supported(&chip->ibb) && chip->ibb.single_phase) {

		val = FORCE_SINGLE_PHASE_BIT;



		rc = qpnp_amoled_masked_write(chip, IBB_DUAL_PHASE_CTL(chip),

			IBB_DUAL_PHASE_CTL_MASK, val);

		if (rc < 0)

			return rc;

	}



	return 0;

}
@@ -555,12 +570,14 @@ static int qpnp_amoled_parse_dt(struct qpnp_amoled *chip) 
			break;

		case IBB_PERIPH_TYPE:

			chip->ibb_base = base;

			chip->ibb.subtype = val[1];

			chip->ibb.vreg.node = temp;

			chip->ibb.swire_control = of_property_read_bool(temp,

							"qcom,swire-control");

			chip->ibb.pd_control = of_property_read_bool(temp,

							"qcom,aod-pd-control");

			chip->ibb.subtype = val[1];

			chip->ibb.single_phase = of_property_read_bool(temp,

							"qcom,ibb-single-phase");

			break;

		default:

			pr_err("Unknown peripheral type 0x%x\n", val[0]);