diff options
author | Mathias Nyman <mathias.nyman@linux.intel.com> | 2015-10-01 18:40:36 +0300 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-10-04 10:34:17 +0100 |
commit | 2338b9e47fba0cd35e1e59f09838a8b9b339a55a (patch) | |
tree | 39ba3b58c75952927b90fcc215062721aadabfb9 /drivers/usb | |
parent | 5693e0b77f82cddf322bdc3eb50f26d3c707f61e (diff) | |
download | linux-2338b9e47fba0cd35e1e59f09838a8b9b339a55a.tar.bz2 |
xhci: define the new default speed ID for SuperSpeedPlus used by xhci hw
USB 3.1 capable xhci controllers use a new default speed ID "5" in the
PORTSC register to represent a 10Gbps connection speed of a SuperSpeedPlus
device
Make sure the xhci driver can handle the returned SuperSpeedPlus speed ID
properly
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
-rw-r--r-- | drivers/usb/host/xhci-hub.c | 6 | ||||
-rw-r--r-- | drivers/usb/host/xhci-ring.c | 6 | ||||
-rw-r--r-- | drivers/usb/host/xhci.h | 4 |
3 files changed, 10 insertions, 6 deletions
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c index a7a0c64d17ab..483b5f8cb951 100644 --- a/drivers/usb/host/xhci-hub.c +++ b/drivers/usb/host/xhci-hub.c @@ -713,7 +713,7 @@ static u32 xhci_get_port_status(struct usb_hcd *hcd, status |= USB_PORT_STAT_SUSPEND; } if ((raw_port_status & PORT_PLS_MASK) == XDEV_RESUME && - !DEV_SUPERSPEED(raw_port_status)) { + !DEV_SUPERSPEED_ANY(raw_port_status)) { if ((raw_port_status & PORT_RESET) || !(raw_port_status & PORT_PE)) return 0xffffffff; @@ -1311,14 +1311,14 @@ int xhci_bus_resume(struct usb_hcd *hcd) u32 temp; temp = readl(port_array[port_index]); - if (DEV_SUPERSPEED(temp)) + if (DEV_SUPERSPEED_ANY(temp)) temp &= ~(PORT_RWC_BITS | PORT_CEC | PORT_WAKE_BITS); else temp &= ~(PORT_RWC_BITS | PORT_WAKE_BITS); if (test_bit(port_index, &bus_state->bus_suspended) && (temp & PORT_PLS_MASK)) { set_bit(port_index, &port_was_suspended); - if (!DEV_SUPERSPEED(temp)) { + if (!DEV_SUPERSPEED_ANY(temp)) { xhci_set_link_state(xhci, port_array, port_index, XDEV_RESUME); need_usb2_u3_exit = true; diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 43291f93afeb..0e5aa8751c05 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -1567,7 +1567,7 @@ static void handle_port_status(struct xhci_hcd *xhci, goto cleanup; } - if (DEV_SUPERSPEED(temp)) { + if (DEV_SUPERSPEED_ANY(temp)) { xhci_dbg(xhci, "remote wake SS port %d\n", port_id); /* Set a flag to say the port signaled remote wakeup, * so we can tell the difference between the end of @@ -1595,7 +1595,7 @@ static void handle_port_status(struct xhci_hcd *xhci, } if ((temp & PORT_PLC) && (temp & PORT_PLS_MASK) == XDEV_U0 && - DEV_SUPERSPEED(temp)) { + DEV_SUPERSPEED_ANY(temp)) { xhci_dbg(xhci, "resume SS port %d finished\n", port_id); /* We've just brought the device into U0 through either the * Resume state after a device remote wakeup, or through the @@ -1625,7 +1625,7 @@ static void handle_port_status(struct xhci_hcd *xhci, * RExit to a disconnect state). If so, let the the driver know it's * out of the RExit state. */ - if (!DEV_SUPERSPEED(temp) && + if (!DEV_SUPERSPEED_ANY(temp) && test_and_clear_bit(faked_port_index, &bus_state->rexit_ports)) { complete(&bus_state->rexit_done[faked_port_index]); diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index cd4a6e795329..e2c76e210817 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -327,11 +327,15 @@ struct xhci_op_regs { #define XDEV_LS (0x2 << 10) #define XDEV_HS (0x3 << 10) #define XDEV_SS (0x4 << 10) +#define XDEV_SSP (0x5 << 10) #define DEV_UNDEFSPEED(p) (((p) & DEV_SPEED_MASK) == (0x0<<10)) #define DEV_FULLSPEED(p) (((p) & DEV_SPEED_MASK) == XDEV_FS) #define DEV_LOWSPEED(p) (((p) & DEV_SPEED_MASK) == XDEV_LS) #define DEV_HIGHSPEED(p) (((p) & DEV_SPEED_MASK) == XDEV_HS) #define DEV_SUPERSPEED(p) (((p) & DEV_SPEED_MASK) == XDEV_SS) +#define DEV_SUPERSPEEDPLUS(p) (((p) & DEV_SPEED_MASK) == XDEV_SSP) +#define DEV_SUPERSPEED_ANY(p) (((p) & DEV_SPEED_MASK) >= XDEV_SS) + /* Bits 20:23 in the Slot Context are the speed for the device */ #define SLOT_SPEED_FS (XDEV_FS << 10) #define SLOT_SPEED_LS (XDEV_LS << 10) |