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Mathias Nyman a646b4e596 xhci: fix event ring segment table related masks and variables in header
[ Upstream commit 8c1cbec9db ]

xHC controller can supports up to 1024 interrupters.
To fit these change the max_interrupters varable from u8 to u16.

Add a separate mask for the reserve and preserve bits [5:0] in the erst
base register and use it instead of the ERST_PRT_MASK.
ERSR_PTR_MASK [3:0] is intended for masking bits in the
event ring dequeue pointer register.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20230202150505.618915-2-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: e5fa8db0be ("usb: xhci: fix loss of data on Cadence xHC")
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2024-10-17 15:11:16 +02:00
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