usb: musb: rename ->reset() to ->recover()

recover is a much better name than reset, considering
we don't really reset the IP, just run platform-specific
babble recovery algorithm.

while at that, also fix a typo in comment and add kdoc
for recover memeber of platform_ops.

Tested-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 979bc2b..bf97462 100644 (file)
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -1838,7 +1838,7 @@ static void musb_recover_work(struct work_struct *data)
        int ret;
        u8 devctl;
 
-       ret  = musb_platform_reset(musb);
+       ret  = musb_platform_recover(musb);
        if (ret) {
                musb_enable_interrupts(musb);
                return;

diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h
index 5e65958..1e03c7e 100644 (file)
--- a/drivers/usb/musb/musb_core.h
+++ b/drivers/usb/musb/musb_core.h
@@ -160,7 +160,8 @@ struct musb_io;
  * @init:      turns on clocks, sets up platform-specific registers, etc
  * @exit:      undoes @init
  * @set_mode:  forcefully changes operating mode
- * @try_ilde:  tries to idle the IP
+ * @try_idle:  tries to idle the IP
+ * @recover:   platform-specific babble recovery
  * @vbus_status: returns vbus status if possible
  * @set_vbus:  forces vbus status
  * @adjust_channel_params: pre check for standard dma channel_program func
@@ -196,7 +197,7 @@ struct musb_platform_ops {
        void    (*write_fifo)(struct musb_hw_ep *hw_ep, u16 len, const u8 *buf);
        int     (*set_mode)(struct musb *musb, u8 mode);
        void    (*try_idle)(struct musb *musb, unsigned long timeout);
-       int     (*reset)(struct musb *musb);
+       int     (*recover)(struct musb *musb);
 
        int     (*vbus_status)(struct musb *musb);
        void    (*set_vbus)(struct musb *musb, int on);
@@ -558,12 +559,12 @@ static inline void musb_platform_try_idle(struct musb *musb,
                musb->ops->try_idle(musb, timeout);
 }
 
-static inline int  musb_platform_reset(struct musb *musb)
+static inline int  musb_platform_recover(struct musb *musb)
 {
-       if (!musb->ops->reset)
-               return -EINVAL;
+       if (!musb->ops->recover)
+               return 0;
 
-       return musb->ops->reset(musb);
+       return musb->ops->recover(musb);
 }
 
 static inline int musb_platform_get_vbus_status(struct musb *musb)

diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c
index a159de1..30eb6ac 100644 (file)
--- a/drivers/usb/musb/musb_dsps.c
+++ b/drivers/usb/musb/musb_dsps.c
@@ -600,7 +600,7 @@ static bool dsps_sw_babble_control(struct musb *musb)
        return session_restart;
 }
 
-static int dsps_musb_reset(struct musb *musb)
+static int dsps_musb_recover(struct musb *musb)
 {
        struct device *dev = musb->controller;
        struct dsps_glue *glue = dev_get_drvdata(dev->parent);
@@ -624,7 +624,7 @@ static struct musb_platform_ops dsps_ops = {
 
        .try_idle       = dsps_musb_try_idle,
        .set_mode       = dsps_musb_set_mode,
-       .reset          = dsps_musb_reset,
+       .recover        = dsps_musb_recover,
 };
 
 static u64 musb_dmamask = DMA_BIT_MASK(32);