Add callback to ehci_hcd.c to prepare
for solving the problem with VBUS reset on Efika.
Signed-off-by: Jana Rapava <ferma...@gmail.com>
Cc: Marek Vasut <marek.va...@gmail.com>
Cc: Remy Bohmer <li...@bohmer.net>
Cc: Stefano Babic <sba...@denx.de>
Acked-by: Marek Vasut <marek.va...@gmail.com>
---
drivers/usb/host/ehci-hcd.c | 14 +++++++++++++-
1 files changed, 13 insertions(+), 1 deletions(-)
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index bdadd46..c548276 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -536,6 +536,18 @@ static inline int min3(int a, int b, int c)
return a;
}
+inline void __ehci_fixup(uint32_t *status_reg, uint32_t *reg_ref)
+{
+ wait_ms(50);
+}
+
+/*
+ * This is an alias to __ehci_fixup() unless user provides other definition
+ * of ehci_fixup function.
+ */
+void ehci_fixup(uint32_t *status_reg, uint32_t *reg_ref)
+ __attribute__((weak, alias("__ehci_fixup")));
+
int
ehci_submit_root(struct usb_device *dev, unsigned long pipe, void *buffer,
int length, struct devrequest *req)
@@ -709,7 +721,7 @@ ehci_submit_root(struct usb_device *dev, unsigned long
pipe, void *buffer,
* usb 2.0 specification say 50 ms resets on
* root
*/
- wait_ms(50);
+ ehci_fixup(status_reg, ®);
/* terminate the reset */
ehci_writel(status_reg, reg & ~EHCI_PS_PR);
/*
--
1.7.6.3
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