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[U-Boot,11/12] musb: sunxi: Force EP0 on re-enable

Message ID 1437554735-11728-11-git-send-email-contact@paulk.fr
State Superseded
Delegated to: Marek Vasut
Headers show

Commit Message

Paul Kocialkowski July 22, 2015, 8:45 a.m. UTC 
From: Maxime Ripard <maxime.ripard@free-electrons.com>

Currently, the second use of a gadget will fail, while the first one works.

Forcing the EP0 at every enable fix this issue.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
---
 drivers/usb/musb-new/sunxi.c | 3 +++
 1 file changed, 3 insertions(+)

Comments

Hans de Goede July 22, 2015, 9:34 a.m. UTC | #1 
Hi,

On 22-07-15 10:45, Paul Kocialkowski wrote:
> From: Maxime Ripard <maxime.ripard@free-electrons.com>
>
> Currently, the second use of a gadget will fail, while the first one works.
>
> Forcing the EP0 at every enable fix this issue.
>
> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

Acked-by: Hans de Goede <hdegoede@redhat.com>

Regards,

Hans

> ---
>   drivers/usb/musb-new/sunxi.c | 3 +++
>   1 file changed, 3 insertions(+)
>
> diff --git a/drivers/usb/musb-new/sunxi.c b/drivers/usb/musb-new/sunxi.c
> index 052e065..4effaaa 100644
> --- a/drivers/usb/musb-new/sunxi.c
> +++ b/drivers/usb/musb-new/sunxi.c
> @@ -203,6 +203,9 @@ static void sunxi_musb_enable(struct musb *musb)
>   {
>   	pr_debug("%s():\n", __func__);
>
> +	musb_ep_select(musb->mregs, 0);
> +	musb_writeb(musb->mregs, MUSB_FADDR, 0);
> +
>   	if (enabled)
>   		return;
>
>
diff mbox

Patch

diff --git a/drivers/usb/musb-new/sunxi.c b/drivers/usb/musb-new/sunxi.c
index 052e065..4effaaa 100644
--- a/drivers/usb/musb-new/sunxi.c
+++ b/drivers/usb/musb-new/sunxi.c
@@ -203,6 +203,9 @@  static void sunxi_musb_enable(struct musb *musb)
 {
 	pr_debug("%s():\n", __func__);
 
+	musb_ep_select(musb->mregs, 0);
+	musb_writeb(musb->mregs, MUSB_FADDR, 0);
+
 	if (enabled)
 		return;