VisionFive2 Linux kernel

StarFive Tech Linux Kernel for VisionFive (JH7110) boards (mirror)

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author: Ferry Toth <ftoth@exalondelft.nl> 2021-05-18 23:27:09 +0200 committer: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2021-07-19 10:04:52 +0200 commit: 42e737661a0dfd872c1392a33b20273127a54d27 parent: 6fd650c47411ee353b1efba1500c67b170d7d0c9
Commit Summary:
extcon: intel-mrfld: Sync hardware and software state on init
Diffstat:
1 file changed, 9 insertions, 0 deletions
diff --git a/drivers/extcon/extcon-intel-mrfld.c b/drivers/extcon/extcon-intel-mrfld.c
index f47016fb28a8..cd1a5f230077 100644
--- a/drivers/extcon/extcon-intel-mrfld.c
+++ b/drivers/extcon/extcon-intel-mrfld.c
@@ -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);