diff options
| author | Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com> | 2023-10-24 18:53:53 +0200 |
|---|---|---|
| committer | Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com> | 2024-01-22 13:29:42 +0100 |
| commit | 4b5581f112075e46d73b34b9848be041e6c1e489 (patch) | |
| tree | 5d2115e294f33687e69c8bddbd27bb0265871173 /drivers/accel | |
| parent | b246271d257b4b0573e88f443ed8091f8b044895 (diff) | |
| download | linux-4b5581f112075e46d73b34b9848be041e6c1e489.tar.gz | |
accel/ivpu: Disable PLL after VPU IP reset during FLR
IP reset has to followed by ivpu_pll_disable() to properly enter
reset state.
Fixes: 828d63042aec ("accel/ivpu: Don't enter d0i3 during FLR")
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231024165353.761507-1-stanislaw.gruszka@linux.intel.com
Diffstat (limited to 'drivers/accel')
| -rw-r--r-- | drivers/accel/ivpu/ivpu_hw_40xx.c | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/drivers/accel/ivpu/ivpu_hw_40xx.c b/drivers/accel/ivpu/ivpu_hw_40xx.c index eba2fdef2ace1..c02061f299e23 100644 --- a/drivers/accel/ivpu/ivpu_hw_40xx.c +++ b/drivers/accel/ivpu/ivpu_hw_40xx.c @@ -746,7 +746,7 @@ static int ivpu_hw_40xx_info_init(struct ivpu_device *vdev) return 0; } -static int ivpu_hw_40xx_reset(struct ivpu_device *vdev) +static int ivpu_hw_40xx_ip_reset(struct ivpu_device *vdev) { int ret; u32 val; @@ -768,6 +768,23 @@ static int ivpu_hw_40xx_reset(struct ivpu_device *vdev) return ret; } +static int ivpu_hw_40xx_reset(struct ivpu_device *vdev) +{ + int ret = 0; + + if (ivpu_hw_40xx_ip_reset(vdev)) { + ivpu_err(vdev, "Failed to reset VPU IP\n"); + ret = -EIO; + } + + if (ivpu_pll_disable(vdev)) { + ivpu_err(vdev, "Failed to disable PLL\n"); + ret = -EIO; + } + + return ret; +} + static int ivpu_hw_40xx_d0i3_enable(struct ivpu_device *vdev) { int ret; @@ -913,7 +930,7 @@ static int ivpu_hw_40xx_power_down(struct ivpu_device *vdev) ivpu_hw_40xx_save_d0i3_entry_timestamp(vdev); - if (!ivpu_hw_40xx_is_idle(vdev) && ivpu_hw_40xx_reset(vdev)) + if (!ivpu_hw_40xx_is_idle(vdev) && ivpu_hw_40xx_ip_reset(vdev)) ivpu_warn(vdev, "Failed to reset the VPU\n"); if (ivpu_pll_disable(vdev)) { |