TPS659038 can remux its GPIO_1 as VBUSDET output,
which can be tied to a SoC GPIO and used as a VBUS
interrupt.
Beagle X15 uses that, in fact, and without it, I
could not get USB peripheral working with that
board.
Signed-off-by: Felipe Balbi <balbi@xxxxxx>
---
drivers/extcon/extcon-palmas.c | 22 ++++++++++++++++++++--
1 file changed, 20 insertions(+), 2 deletions(-)
diff --git a/drivers/extcon/extcon-palmas.c b/drivers/extcon/extcon-palmas.c
index 93c30a885740..7985d092c069 100644
--- a/drivers/extcon/extcon-palmas.c
+++ b/drivers/extcon/extcon-palmas.c
@@ -296,10 +296,28 @@ static int palmas_usb_probe(struct platform_device *pdev)
}
if (palmas_usb->enable_vbus_detection) {
+ int irq = platform_get_irq(pdev, 0);
+
+ if (irq > 0) {
+ /* remux GPIO_1 as VBUSDET */
+ status = palmas_update_bits(palmas, PALMAS_PU_PD_OD_BASE,
+ PALMAS_PRIMARY_SECONDARY_PAD1,
+ PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_1_MASK,
+ (1 << 3));
+ if (status < 0) {
+ dev_err(&pdev->dev, "can't remux GPIO1\n");
+ return status;
+ }
+
+ palmas_usb->vbus_irq = irq;
+ } else {
+ irq = regmap_irq_get_virq(palmas->irq_data,
+ PALMAS_VBUS_IRQ);
+ palmas_usb->vbus_irq = irq;
+ }
+
palmas_usb->vbus_otg_irq = regmap_irq_get_virq(palmas->irq_data,
PALMAS_VBUS_OTG_IRQ);
- palmas_usb->vbus_irq = regmap_irq_get_virq(palmas->irq_data,
- PALMAS_VBUS_IRQ);
status = devm_request_threaded_irq(palmas_usb->dev,
palmas_usb->vbus_irq, NULL,
palmas_vbus_irq_handler,
--
2.6.2
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