On Wed, May 29, 2013 at 06:37:02PM +0530, Ravi Babu wrote:
> Added musb_restart() API, used for restart of the musb controller by
> the glue layer, when there is babble condition occured on the bus.
>
> During babble condition, the musb controller will remove the session
> and no longer in host-mode. As part of recovery this API can be used
> to restart the musb controller.
>
> Signed-off-by: Ravi Babu <ravibabu@xxxxxx>
> ---
> drivers/usb/musb/musb_core.c | 24 ++++++++++++++++++++++++
> drivers/usb/musb/musb_core.h | 1 +
> 2 files changed, 25 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
> index 37a261a..ab6fa39 100644
> --- a/drivers/usb/musb/musb_core.c
> +++ b/drivers/usb/musb/musb_core.c
> @@ -1373,6 +1373,30 @@ static int ep_config_from_hw(struct musb *musb)
> return 0;
> }
>
> +/*
> + * musb_restart - restarts musb controller
> + * @param musb the controller
> + */
> +int musb_restart(struct musb *musb)
> +{
> + int status = 0;
> +
> + /* during babble condition the musb controller removes the
> + * session bit and the fifo table initialized value get changed
> + */
> + if (musb->dyn_fifo)
> + status = ep_config_from_table(musb);
> + else
> + status = ep_config_from_hw(musb);
> +
> + /* starts session */
> + if (!status)
> + musb_start(musb);
> +
> + return status;
> +}
> +EXPORT_SYMBOL_GPL(musb_restart);
this sort of function should never be exposed outside of MUSB core
itself. This points to a big problem somewhere else.
let me continue reading the other two patches...
--
balbi
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