diff options
Diffstat (limited to 'drivers/gpu/drm/panfrost/panfrost_gpu.c')
| -rw-r--r-- | drivers/gpu/drm/panfrost/panfrost_gpu.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/drivers/gpu/drm/panfrost/panfrost_gpu.c b/drivers/gpu/drm/panfrost/panfrost_gpu.c index 7adc4441fa14..9063ce254642 100644 --- a/drivers/gpu/drm/panfrost/panfrost_gpu.c +++ b/drivers/gpu/drm/panfrost/panfrost_gpu.c @@ -22,9 +22,13 @@ static irqreturn_t panfrost_gpu_irq_handler(int irq, void *data) { struct panfrost_device *pfdev = data; - u32 state = gpu_read(pfdev, GPU_INT_STAT); - u32 fault_status = gpu_read(pfdev, GPU_FAULT_STATUS); + u32 fault_status, state; + if (test_bit(PANFROST_COMP_BIT_GPU, pfdev->is_suspended)) + return IRQ_NONE; + + fault_status = gpu_read(pfdev, GPU_FAULT_STATUS); + state = gpu_read(pfdev, GPU_INT_STAT); if (!state) return IRQ_NONE; @@ -61,6 +65,8 @@ int panfrost_gpu_soft_reset(struct panfrost_device *pfdev) gpu_write(pfdev, GPU_INT_MASK, 0); gpu_write(pfdev, GPU_INT_CLEAR, GPU_IRQ_RESET_COMPLETED); + clear_bit(PANFROST_COMP_BIT_GPU, pfdev->is_suspended); + gpu_write(pfdev, GPU_CMD, GPU_CMD_SOFT_RESET); ret = readl_relaxed_poll_timeout(pfdev->iomem + GPU_INT_RAWSTAT, val, val & GPU_IRQ_RESET_COMPLETED, 10, 10000); @@ -452,6 +458,14 @@ void panfrost_gpu_power_off(struct panfrost_device *pfdev) dev_err(pfdev->dev, "l2 power transition timeout"); } +void panfrost_gpu_suspend_irq(struct panfrost_device *pfdev) +{ + set_bit(PANFROST_COMP_BIT_GPU, pfdev->is_suspended); + + gpu_write(pfdev, GPU_INT_MASK, 0); + synchronize_irq(pfdev->gpu_irq); +} + int panfrost_gpu_init(struct panfrost_device *pfdev) { int err; |