From: Wachowski, Karol Date: Tue, 11 Jun 2024 12:04:22 +0000 (+0200) Subject: accel/ivpu: Disable clock relinquish for MMIO reset X-Git-Tag: io_uring-6.11-20240722~49^2~21^2~29 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=ab4484cd863b3637ec8e03318532785476d12dfc;p=linux-block.git 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 Reviewed-by: Jacek Lawrynowicz Signed-off-by: Jacek Lawrynowicz 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 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");