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extcon: intel-mrfld: Sync hardware and software state on init
commitecb5bdff90
upstream. 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:492929c547
("extcon: mrfld: Introduce extcon driver for Basin Cove PMIC") Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Ferry Toth <ftoth@exalondelft.nl> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -197,6 +197,7 @@ static int mrfld_extcon_probe(struct platform_device *pdev)
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struct intel_soc_pmic *pmic = dev_get_drvdata(dev->parent);
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struct regmap *regmap = pmic->regmap;
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struct mrfld_extcon_data *data;
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unsigned int status;
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unsigned int id;
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int irq, ret;
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@ -244,6 +245,14 @@ static int mrfld_extcon_probe(struct platform_device *pdev)
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/* Get initial state */
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mrfld_extcon_role_detect(data);
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/*
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* Cached status value is used for cable detection, see comments
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* in mrfld_extcon_cable_detect(), we need to sync cached value
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* with a real state of the hardware.
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*/
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regmap_read(regmap, BCOVE_SCHGRIRQ1, &status);
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data->status = status;
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mrfld_extcon_clear(data, BCOVE_MIRQLVL1, BCOVE_LVL1_CHGR);
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mrfld_extcon_clear(data, BCOVE_MCHGRIRQ1, BCOVE_CHGRIRQ_ALL);
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