diff options
| author | Petr Kulhavy <petr@barix.com> | 2016-11-21 17:59:28 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-11-21 19:35:36 +0300 |
| commit | 830fc64ca721101d5f360c1b7d09b8037b2b5b0b (patch) | |
| tree | d38244eb5e55ff65bcd00f31f18a6da817ce5e25 /drivers/usb/musb | |
| parent | c92340ab32b29db84d656a873d5761cbbb48dbee (diff) | |
| download | linux-830fc64ca721101d5f360c1b7d09b8037b2b5b0b.tar.xz | |
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: Petr Kulhavy <petr@barix.com>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Alexandre Bailon <abailon@baylibre.com>
Tested-by: David Lechner <david@lechnology.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/musb')
| -rw-r--r-- | drivers/usb/musb/musb_core.c | 19 | ||||
| -rw-r--r-- | drivers/usb/musb/musb_core.h | 6 |
2 files changed, 25 insertions, 0 deletions
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index a5ead84d68d1..a109f22fefcd 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -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 diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h index 2cb88a498f8a..76f00f61b874 100644 --- a/drivers/usb/musb/musb_core.h +++ b/drivers/usb/musb/musb_core.h @@ -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__ */ |