diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2018-01-16 12:53:14 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-01-17 17:08:56 +0300 |
| commit | 26c502701c5287cd826b8a62358187f4b8941363 (patch) | |
| tree | aa22bf62aa4918c1651b34cc7148b04ee439147b /drivers/usb/host/uhci-hcd.h | |
| parent | cbeef22fd611c4f47c494b821b2b105b8af970bb (diff) | |
| download | linux-26c502701c5287cd826b8a62358187f4b8941363.tar.xz | |
usb: uhci: Add clk support to uhci-platform
The Aspeed SoCs use uhci-platform. With the new dynamic clock
control framework, the corresponding IP block clock must be
properly enabled.
This is a simplified variant of what ehci-platform does, it
looks for *one* clock attached to the device, and if it's
there, enables it.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/uhci-hcd.h')
| -rw-r--r-- | drivers/usb/host/uhci-hcd.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/host/uhci-hcd.h b/drivers/usb/host/uhci-hcd.h index f1cc47292a59..7f9f33c8c232 100644 --- a/drivers/usb/host/uhci-hcd.h +++ b/drivers/usb/host/uhci-hcd.h @@ -4,6 +4,7 @@ #include <linux/list.h> #include <linux/usb.h> +#include <linux/clk.h> #define usb_packetid(pipe) (usb_pipein(pipe) ? USB_PID_IN : USB_PID_OUT) #define PIPE_DEVEP_MASK 0x0007ff00 @@ -447,6 +448,8 @@ struct uhci_hcd { int total_load; /* Sum of array values */ short load[MAX_PHASE]; /* Periodic allocations */ + struct clk *clk; /* (optional) clock source */ + /* Reset host controller */ void (*reset_hc) (struct uhci_hcd *uhci); int (*check_and_reset_hc) (struct uhci_hcd *uhci); |