[PATCH] accel/ivpu/37xx: Fix hangs related to MMIO reset

[Jeffrey Hugo]

On 11/15/2023 4:10 AM, Jacek Lawrynowicz wrote:
> There is no need to call MMIO reset using VPU_37XX_BUTTRESS_VPU_IP_RESET
> register. IP will be reset by FLR or by entering d0i3. Also IP reset
> during power_up is not needed as the VPU is already in reset.
> 
> Removing MMIO reset improves stability as it a partial device reset
> that is not safe in some corner cases.
> 
> This change also brings back ivpu_boot_pwr_domain_disable() that
> helps to properly power down VPU when it is hung by a buggy workload.
> 
> Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz at linux.intel.com>
> Fixes: 828d63042aec ("accel/ivpu: Don't enter d0i3 during FLR")

Reviewed-by: Jeffrey Hugo <quic_jhugo at quicinc.com>