diff options
| author | Daniel Mack | 2013-04-10 21:55:47 +0200 |
|---|---|---|
| committer | Felipe Balbi | 2013-05-28 18:22:24 +0200 |
| commit | 2cc65feab2f18dfa4297209829ce228989c7356b (patch) | |
| tree | 83666f8e5a3a445e11cf891dab4458588df52ed5 /drivers/usb/musb | |
| parent | usb: musb: add Kconfig options for HOST, GAGDET or DUAL_ROLE modes (diff) | |
| download | kernel-qcow2-linux-2cc65feab2f18dfa4297209829ce228989c7356b.tar.gz kernel-qcow2-linux-2cc65feab2f18dfa4297209829ce228989c7356b.tar.xz kernel-qcow2-linux-2cc65feab2f18dfa4297209829ce228989c7356b.zip | |
usb: musb: add musb_host_setup() and musb_host_cleanup()
This patch re-introduces the bits that are necessary to use the musb
controller in host mode.
Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/musb')
| -rw-r--r-- | drivers/usb/musb/musb_core.c | 5 | ||||
| -rw-r--r-- | drivers/usb/musb/musb_host.c | 21 | ||||
| -rw-r--r-- | drivers/usb/musb/musb_host.h | 8 |
3 files changed, 34 insertions, 0 deletions
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index 727a687433d6..18da746ae6bf 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -953,6 +953,7 @@ static void musb_shutdown(struct platform_device *pdev) pm_runtime_get_sync(musb->controller); + musb_host_cleanup(musb); musb_gadget_cleanup(musb); spin_lock_irqsave(&musb->lock, flags); @@ -1902,6 +1903,10 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl) musb->xceiv->state = OTG_STATE_B_IDLE; } + status = musb_host_setup(musb, plat->power); + if (status < 0) + goto fail3; + status = musb_gadget_setup(musb); if (status < 0) diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c index e6ece8a4e8b6..6057c2363e86 100644 --- a/drivers/usb/musb/musb_host.c +++ b/drivers/usb/musb/musb_host.c @@ -2640,6 +2640,27 @@ void musb_host_free(struct musb *musb) usb_put_hcd(musb->hcd); } +int musb_host_setup(struct musb *musb, int power_budget) +{ + int ret; + struct usb_hcd *hcd = musb->hcd; + + MUSB_HST_MODE(musb); + musb->xceiv->otg->default_a = 1; + musb->xceiv->state = OTG_STATE_A_IDLE; + + otg_set_host(musb->xceiv->otg, &hcd->self); + hcd->self.otg_port = 1; + musb->xceiv->otg->host = &hcd->self; + hcd->power_budget = 2 * (power_budget ? : 250); + + ret = usb_add_hcd(hcd, 0, 0); + if (ret < 0) + return ret; + + return 0; +} + void musb_host_resume_root_hub(struct musb *musb) { usb_hcd_resume_root_hub(musb->hcd); diff --git a/drivers/usb/musb/musb_host.h b/drivers/usb/musb/musb_host.h index 1ce6e4ec9021..48a4bdd8b9f9 100644 --- a/drivers/usb/musb/musb_host.h +++ b/drivers/usb/musb/musb_host.h @@ -81,6 +81,8 @@ static inline struct musb_qh *first_qh(struct list_head *q) extern struct musb *hcd_to_musb(struct usb_hcd *); extern irqreturn_t musb_h_ep0_irq(struct musb *); extern int musb_host_alloc(struct musb *); +extern int musb_host_setup(struct musb *, int); +extern void musb_host_cleanup(struct musb *); extern void musb_host_tx(struct musb *, u8); extern void musb_host_rx(struct musb *, u8); extern void musb_root_disconnect(struct musb *musb); @@ -107,6 +109,12 @@ static inline int musb_host_alloc(struct musb *musb) return 0; } +static inline int musb_host_setup(struct musb *musb, int power_budget) +{ + return 0; +} + +static inline void musb_host_cleanup(struct musb *musb) {} static inline void musb_host_free(struct musb *musb) {} static inline void musb_host_tx(struct musb *musb, u8 epnum) {} static inline void musb_host_rx(struct musb *musb, u8 epnum) {} |