[PATCH 05/15] accel/ivpu: Disable clock relinquish for MMIO reset

Jacek Lawrynowicz jacek.lawrynowicz at linux.intel.com
Tue Jun 11 12:04:22 UTC 2024


From: "Wachowski, Karol" <karol.wachowski at intel.com>

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 at intel.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz at linux.intel.com>
---
 drivers/accel/ivpu/ivpu_hw_btrs.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/accel/ivpu/ivpu_hw_btrs.c b/drivers/accel/ivpu/ivpu_hw_btrs.c
index 13734d1abc7d..123c1f2fd554 100644
--- 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");
-- 
2.45.1



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