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Commit 830fc64c authored by Petr Kulhavy's avatar Petr Kulhavy Committed by Greg Kroah-Hartman
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usb: musb: core: added helper function for parsing DT 



This adds the function musb_get_mode() to get the DT property "dr_mode"

Signed-off-by: default avatarPetr Kulhavy <petr@barix.com>
Acked-by: default avatarSergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: default avatarAlexandre Bailon <abailon@baylibre.com>
Tested-by: default avatarDavid Lechner <david@lechnology.com>
Reviewed-by: default avatarKevin Hilman <khilman@baylibre.com>
Signed-off-by: default avatarBin Liu <b-liu@ti.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent c92340ab

drivers/usb/musb/musb_core.c

+19 −0
Original line number Diff line number Diff line
@@ -100,6 +100,7 @@ 
#include <linux/io.h>

#include <linux/dma-mapping.h>

#include <linux/usb.h>

#include <linux/usb/of.h>



#include "musb_core.h"

#include "musb_trace.h"
@@ -130,6 +131,24 @@ static inline struct musb *dev_to_musb(struct device *dev) 
	return dev_get_drvdata(dev);

}



enum musb_mode musb_get_mode(struct device *dev)

{

	enum usb_dr_mode mode;



	mode = usb_get_dr_mode(dev);

	switch (mode) {

	case USB_DR_MODE_HOST:

		return MUSB_HOST;

	case USB_DR_MODE_PERIPHERAL:

		return MUSB_PERIPHERAL;

	case USB_DR_MODE_OTG:

	case USB_DR_MODE_UNKNOWN:

	default:

		return MUSB_OTG;

	}

}

EXPORT_SYMBOL_GPL(musb_get_mode);



/*-------------------------------------------------------------------------*/



#ifndef CONFIG_BLACKFIN

drivers/usb/musb/musb_core.h

+6 −0
Original line number Diff line number Diff line
@@ -617,4 +617,10 @@ static inline void musb_platform_post_root_reset_end(struct musb *musb) 
		musb->ops->post_root_reset_end(musb);

}



/*

 * gets the "dr_mode" property from DT and converts it into musb_mode

 * if the property is not found or not recognized returns MUSB_OTG

 */

extern enum musb_mode musb_get_mode(struct device *dev);



#endif	/* __MUSB_CORE_H__ */