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Subject[RFC/PATCH 2/5] usb: otg: twl4030: add support for notifier
Date
it's expected that the transceiver driver will
initialize and call the notifier chain when
necessary. Implement that for twl4030-usb driver.

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
---
drivers/usb/otg/twl4030-usb.c | 7 +++++--
1 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/otg/twl4030-usb.c b/drivers/usb/otg/twl4030-usb.c
index 2ffc8eb..c3e498a 100644
--- a/drivers/usb/otg/twl4030-usb.c
+++ b/drivers/usb/otg/twl4030-usb.c
@@ -36,7 +36,7 @@
#include <linux/i2c/twl4030.h>
#include <linux/regulator/consumer.h>
#include <linux/err.h>
-
+#include <linux/notifier.h>

/* Register defines */

@@ -628,7 +628,8 @@ static irqreturn_t twl4030_usb_irq(int irq, void *_twl)
else
twl4030_phy_resume(twl);

- twl4030charger_usb_en(status == USB_LINK_VBUS);
+ blocking_notifier_call_chain(&twl->otg.notifier, status,
+ twl->otg.gadget);
}
sysfs_notify(&twl->dev->kobj, NULL, "vbus");

@@ -718,6 +719,8 @@ static int __devinit twl4030_usb_probe(struct platform_device *pdev)
if (device_create_file(&pdev->dev, &dev_attr_vbus))
dev_warn(&pdev->dev, "could not create sysfs file\n");

+ BLOCKING_INIT_NOTIFIER_HEAD(&twl->otg.notifier);
+
/* Our job is to use irqs and status from the power module
* to keep the transceiver disabled when nothing's connected.
*
--
1.6.6.rc0


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