Commit ecb5bdff authored by Ferry Toth's avatar Ferry Toth Committed by Chanwoo Choi
Browse files

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: stable@vger.kernel.org
Fixes: 492929c5 ("extcon: mrfld: Introduce extcon driver for Basin Cove PMIC")
Reviewed-by: default avatarAndy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: default avatarFerry Toth <ftoth@exalondelft.nl>
Signed-off-by: default avatarChanwoo Choi <cw00.choi@samsung.com>
parent 009c9aa5

drivers/extcon/extcon-intel-mrfld.c

+9 −0
Original line number Diff line number Diff line
@@ -197,6 +197,7 @@ static int mrfld_extcon_probe(struct platform_device *pdev) 
	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;
@@ -244,6 +245,14 @@ static int mrfld_extcon_probe(struct platform_device *pdev) 
	/* 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);