accel/ivpu: Disable clock relinquish for MMIO reset

It is required to disable NPU clock relinquish for the time
of MMIO reset. Clock relinquish gets into default (enabled)
state after MMIO reset is performed.

Signed-off-by: Wachowski, Karol <karol.wachowski@intel.com>
Reviewed-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240611120433.1012423-6-jacek.lawrynowicz@linux.intel.com

diff --git a/drivers/accel/ivpu/ivpu_hw_btrs.c b/drivers/accel/ivpu/ivpu_hw_btrs.c
index 13734d1abc7deaac26b46e07cff21556ba16527b..123c1f2fd554b127f87d4d1166e87838539fd31c 100644 (file)
--- a/drivers/accel/ivpu/ivpu_hw_btrs.c
+++ b/drivers/accel/ivpu/ivpu_hw_btrs.c
@@ -504,6 +504,8 @@ static int ip_reset_lnl(struct ivpu_device *vdev)
        int ret;
        u32 val;
 
+       ivpu_hw_btrs_clock_relinquish_disable_lnl(vdev);
+
        ret = REGB_POLL_FLD(VPU_HW_BTRS_LNL_IP_RESET, TRIGGER, 0, TIMEOUT_US);
        if (ret) {
                ivpu_err(vdev, "Wait for *_TRIGGER timed out\n");