This is a note to let you know that I've just added the patch titled
xhci: change xhci 1.0 only restrictions to support xhci 1.1
to the 3.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
xhci-change-xhci-1.0-only-restrictions-to-support-xhci-1.1.patch
and it can be found in the queue-3.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From dca7794539eff04b786fb6907186989e5eaaa9c2 Mon Sep 17 00:00:00 2001
From: Mathias Nyman <[email protected]>
Date: Mon, 21 Sep 2015 17:46:16 +0300
Subject: xhci: change xhci 1.0 only restrictions to support xhci 1.1
From: Mathias Nyman <[email protected]>
commit dca7794539eff04b786fb6907186989e5eaaa9c2 upstream.
Some changes between xhci 0.96 and xhci 1.0 specifications forced us to
check the hci version in code, some of these checks were implemented as
hci_version == 1.0, which will not work with new xhci 1.1 controllers.
xhci 1.1 behaves similar to xhci 1.0 in these cases, so change these
checks to hci_version >= 1.0
Signed-off-by: Mathias Nyman <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/usb/host/xhci-mem.c | 6 +++---
drivers/usb/host/xhci-ring.c | 4 ++--
2 files changed, 5 insertions(+), 5 deletions(-)
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -1473,10 +1473,10 @@ int xhci_endpoint_init(struct xhci_hcd *
* use Event Data TRBs, and we don't chain in a link TRB on short
* transfers, we're basically dividing by 1.
*
- * xHCI 1.0 specification indicates that the Average TRB Length should
- * be set to 8 for control endpoints.
+ * xHCI 1.0 and 1.1 specification indicates that the Average TRB Length
+ * should be set to 8 for control endpoints.
*/
- if (usb_endpoint_xfer_control(&ep->desc) && xhci->hci_version == 0x100)
+ if (usb_endpoint_xfer_control(&ep->desc) && xhci->hci_version >= 0x100)
ep_ctx->tx_info |= cpu_to_le32(AVG_TRB_LENGTH_FOR_EP(8));
else
ep_ctx->tx_info |=
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -3511,8 +3511,8 @@ int xhci_queue_ctrl_tx(struct xhci_hcd *
if (start_cycle == 0)
field |= 0x1;
- /* xHCI 1.0 6.4.1.2.1: Transfer Type field */
- if (xhci->hci_version == 0x100) {
+ /* xHCI 1.0/1.1 6.4.1.2.1: Transfer Type field */
+ if (xhci->hci_version >= 0x100) {
if (urb->transfer_buffer_length > 0) {
if (setup->bRequestType & USB_DIR_IN)
field |= TRB_TX_TYPE(TRB_DATA_IN);
Patches currently in stable-queue which might be from
[email protected] are
queue-3.10/usb-xhci-clear-xhci_state_dying-on-start.patch
queue-3.10/usb-xhci-add-support-for-urb_zero_packet-to-bulk-sg-transfers.patch
queue-3.10/xhci-change-xhci-1.0-only-restrictions-to-support-xhci-1.1.patch
--
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