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Commit efa62049 authored by Linyu Yuan's avatar Linyu Yuan Committed by Gerrit - the friendly Code Review server
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usb: misc: nb7vpq904m: add redriver_orientation_get() 



provide orientation info for external module.

Change-Id: I5e49e5f8071320beaf9d2f2a0390521d4d9f3b91
Signed-off-by: default avatarLinyu Yuan <linyyuan@codeaurora.org>
parent eba0b1fc

drivers/usb/misc/ssusb-redriver-nb7vpq904m.c

+23 −0
Original line number Diff line number Diff line
@@ -421,6 +421,29 @@ static int ssusb_redriver_read_orientation(struct ssusb_redriver *redriver) 
	return 0;

}



int redriver_orientation_get(struct device_node *node)

{

	struct ssusb_redriver *redriver;

	struct i2c_client *client;



	if (!node)

		return -ENODEV;



	client = of_find_i2c_device_by_node(node);

	if (!client)

		return -ENODEV;



	redriver = i2c_get_clientdata(client);

	if (!redriver)

		return -EINVAL;



	if (!gpio_is_valid(redriver->orientation_gpio))

		return -EINVAL;



	return gpio_get_value(redriver->orientation_gpio);

}

EXPORT_SYMBOL(redriver_orientation_get);



static int ssusb_redriver_ucsi_notifier(struct notifier_block *nb,

		unsigned long action, void *data)

{

include/linux/usb/redriver.h

+6 −0
Original line number Diff line number Diff line
@@ -12,6 +12,7 @@ int redriver_release_usb_lanes(struct device_node *node); 
int redriver_gadget_pullup(struct device_node *node, int is_on);

int redriver_notify_connect(struct device_node *node);

int redriver_notify_disconnect(struct device_node *node);

int redriver_orientation_get(struct device_node *node);



#else
@@ -35,6 +36,11 @@ static inline int redriver_notify_disconnect(struct device_node *node) 
	return 0;

}



static inline int redriver_orientation_get(struct device_node *node)

{

	return -ENODEV;

}



#endif



#endif /*__LINUX_USB_REDRIVER_H */