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accel/ivpu: Disable PLL after VPU IP reset during FLR

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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
This commit is contained in:
Jacek Lawrynowicz 2023-10-24 18:53:53 +02:00
parent b246271d25
commit 4b5581f112
1 changed files with 19 additions and 2 deletions
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21
drivers/accel/ivpu/ivpu_hw_40xx.c
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@ -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)) {