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Commit da4cc80e authored by Harry Yang's avatar Harry Yang
Browse files

qcom-charger: Add batch register access support for CC2 removal 



Provide a convient and compact way for a bunch of register
reads/saves and writes.

CRs-Fixed: 1079913
Change-Id: Ica6a60f3f5bd1fad624d01ea410e62dbed09dac8
Signed-off-by: default avatarHarry Yang <harryy@codeaurora.org>
parent 85d7e134

drivers/power/qcom-charger/smb-lib.c

+46 −0
Original line number Diff line number Diff line
@@ -2027,6 +2027,52 @@ int smblib_set_prop_pd_active(struct smb_charger *chg, 
	return rc;

}



int smblib_reg_block_update(struct smb_charger *chg,

				struct reg_info *entry)

{

	int rc = 0;



	while (entry && entry->reg) {

		rc = smblib_read(chg, entry->reg, &entry->bak);

		if (rc < 0) {

			dev_err(chg->dev, "Error in reading %s rc=%d\n",

				entry->desc, rc);

			break;

		}

		entry->bak &= entry->mask;



		rc = smblib_masked_write(chg, entry->reg,

					 entry->mask, entry->val);

		if (rc < 0) {

			dev_err(chg->dev, "Error in writing %s rc=%d\n",

				entry->desc, rc);

			break;

		}

		entry++;

	}



	return rc;

}



int smblib_reg_block_restore(struct smb_charger *chg,

				struct reg_info *entry)

{

	int rc = 0;



	while (entry && entry->reg) {

		rc = smblib_masked_write(chg, entry->reg,

					 entry->mask, entry->bak);

		if (rc < 0) {

			dev_err(chg->dev, "Error in writing %s rc=%d\n",

				entry->desc, rc);

			break;

		}

		entry++;

	}



	return rc;

}



int smblib_set_prop_pd_in_hard_reset(struct smb_charger *chg,

				const union power_supply_propval *val)

{

drivers/power/qcom-charger/smb-lib.h

+8 −0
Original line number Diff line number Diff line
@@ -116,6 +116,14 @@ struct smb_iio { 
	struct iio_channel	*batt_i_chan;

};



struct reg_info {

	u16		reg;

	u8		mask;

	u8		val;

	u8		bak;

	const char	*desc;

};



struct smb_charger {

	struct device		*dev;

	char			*name;