[PATCH] extcon: palmas: Fix boot up state of VBUS when using GPIO detection

From	Roger Quadros <rogerq@ti.com>
Newsgroups	linux.kernel
Subject	[PATCH] extcon: palmas: Fix boot up state of VBUS when using GPIO detection
Date	2016-06-15 10:20 +0200
Message-ID	<rKedj-8vl-1@gated-at.bofh.it> (permalink)
References	<rJXcu-5RE-53@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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If USB cable is connected prior to boot, we don't get any interrupts
so we must manually check the VBUS state and report it during probe.
If we don't do it then USB controller will never know that peripheral
cable was connected till the user unplugs and replugs the cable.

Fixes: b7aad8e2685b ("extcon: palmas: Add the support for VBUS detection by using GPIO")
Cc: stable@vger.kernel.org # v4.6+
Signed-off-by: Roger Quadros <rogerq@ti.com>
---
 drivers/extcon/extcon-palmas.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/extcon/extcon-palmas.c b/drivers/extcon/extcon-palmas.c
index 8b3226d..caff46c 100644
--- a/drivers/extcon/extcon-palmas.c
+++ b/drivers/extcon/extcon-palmas.c
@@ -360,6 +360,8 @@ static int palmas_usb_probe(struct platform_device *pdev)
 
 	palmas_enable_irq(palmas_usb);
 	/* perform initial detection */
+	if (palmas_usb->enable_gpio_vbus_detection)
+		palmas_vbus_irq_handler(palmas_usb->gpio_vbus_irq, palmas_usb);
 	palmas_gpio_id_detect(&palmas_usb->wq_detectid.work);
 	device_set_wakeup_capable(&pdev->dev, true);
 	return 0;
-- 
2.7.4

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[PATCH] extcon: palmas: Fix boot up state of VBUS when using GPIO detection Roger Quadros <rogerq@ti.com> - 2016-06-14 16:10 +0200
  Re: [PATCH] extcon: palmas: Fix boot up state of VBUS when using GPIO  detection Chanwoo Choi <cw00.choi@samsung.com> - 2016-06-15 04:00 +0200
    Re: [PATCH] extcon: palmas: Fix boot up state of VBUS when using GPIO  detection Roger Quadros <rogerq@ti.com> - 2016-06-15 08:50 +0200
      Re: [PATCH] extcon: palmas: Fix boot up state of VBUS when using GPIO  detection Chanwoo Choi <cw00.choi@samsung.com> - 2016-06-15 10:00 +0200
  [PATCH] extcon: palmas: Fix boot up state of VBUS when using GPIO  detection Roger Quadros <rogerq@ti.com> - 2016-06-15 10:20 +0200

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