extcon: intel-mrfld: Sync hardware and software state on init

extcon driver for Basin Cove PMIC shadows the switch status used for dwc3
DRD to detect a change in the switch position. This change initializes the
status at probe time.

Cc: [e-mail]
Fixes: 492929c54791 ("extcon: mrfld: Introduce extcon driver for Basin Cove PMIC")
Reviewed-by: Andy Shevchenko <[e-mail]>
Signed-off-by: Ferry Toth <[e-mail]>
Signed-off-by: Chanwoo Choi <[e-mail]>

drivers/extcon/extcon-intel-mrfld.c

···
 	struct intel_soc_pmic *pmic = dev_get_drvdata(dev->parent);
 	struct regmap *regmap = pmic->regmap;
 	struct mrfld_extcon_data *data;
+	unsigned int status;
 	unsigned int id;
 	int irq, ret;
 
···
 
 	/* Get initial state */
 	mrfld_extcon_role_detect(data);
+
+	/*
+	 * Cached status value is used for cable detection, see comments
+	 * in mrfld_extcon_cable_detect(), we need to sync cached value
+	 * with a real state of the hardware.
+	 */
+	regmap_read(regmap, BCOVE_SCHGRIRQ1, &status);
+	data->status = status;
 
 	mrfld_extcon_clear(data, BCOVE_MIRQLVL1, BCOVE_LVL1_CHGR);
 	mrfld_extcon_clear(data, BCOVE_MCHGRIRQ1, BCOVE_CHGRIRQ_ALL);