diff options
| author | Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> | 2013-06-02 01:33:56 +0400 |
|---|---|---|
| committer | Simon Horman <horms+renesas@verge.net.au> | 2013-06-11 11:10:45 +0400 |
| commit | 743fcce0a89e04dc511b4ea40eba8e3f7cec92d4 (patch) | |
| tree | 5063feeef309582fb3a0904834f732d25f39fcf6 /drivers/usb/host/ehci-platform.c | |
| parent | 2c8788bfd89bad424d3c288b5a52ce141271b862 (diff) | |
| download | linux-743fcce0a89e04dc511b4ea40eba8e3f7cec92d4.tar.xz | |
ehci-platform: add pre_setup() method to platform data
Sometimes there is a need to initialize some non-standard registers mapped to
the EHCI region before accessing the standard EHCI registers. Add pre_setup()
method with 'struct usb_hcd *' parameter to be called just before ehci_setup()
to the 'ehci-platform' driver's platform data for this purpose...
While at it, add the missing incomplete declaration of 'struct platform_device'
to <linux/usb/ehci_pdriver.h>...
The patch has been tested on the Marzen and BOCK-W boards.
Suggested-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Diffstat (limited to 'drivers/usb/host/ehci-platform.c')
| -rw-r--r-- | drivers/usb/host/ehci-platform.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c index f47f2594c9d4..d1f5cea435aa 100644 --- a/drivers/usb/host/ehci-platform.c +++ b/drivers/usb/host/ehci-platform.c @@ -48,6 +48,12 @@ static int ehci_platform_reset(struct usb_hcd *hcd) ehci->big_endian_desc = pdata->big_endian_desc; ehci->big_endian_mmio = pdata->big_endian_mmio; + if (pdata->pre_setup) { + retval = pdata->pre_setup(hcd); + if (retval < 0) + return retval; + } + ehci->caps = hcd->regs + pdata->caps_offset; retval = ehci_setup(hcd); if (retval) |