accel/ivpu: Remove D3hot delay for Meteorlake
authorKarol Wachowski <karol.wachowski@linux.intel.com>
Mon, 3 Apr 2023 12:15:45 +0000 (14:15 +0200)
committerJacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Wed, 5 Apr 2023 07:02:28 +0000 (09:02 +0200)
commitcb949ce504e829193234e26cb3042bb448465d52
treeec944410d5d96e5cb1fdd40a47afd6ea159face0
parent8678c8b305bb0de99eb05d6dae74e04ca46827a4
accel/ivpu: Remove D3hot delay for Meteorlake

VPU on MTL has hardware optimizations and does not require 10ms
D0 - D3hot transition delay imposed by PCI specification (PCIe
r6.0, sec 5.9.) .

The delay removal is traditionally done by adding PCI ID to
quirk_remove_d3hot_delay() in drivers/pci/quirks.c . But since
we do not need that optimization before driver probe and we
can better specify in the ivpu driver on what (future) hardware
use the optimization, we do not use quirk_remove_d3hot_delay()
for that.

Signed-off-by: Karol Wachowski <karol.wachowski@linux.intel.com>
Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230403121545.2995279-1-stanislaw.gruszka@linux.intel.com
drivers/accel/ivpu/ivpu_drv.c