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drm/panfrost: Add gpu_irq, mmu_irq to struct panfrost_device

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In preparation for adding a IRQ synchronization mechanism for PM suspend,
add gpu_irq and mmu_irq variables to struct panfrost_device and change
functions panfrost_gpu_init() and panfrost_mmu_init() to use those.

Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231204114215.54575-3-angelogioacchino.delregno@collabora.com
This commit is contained in:
AngeloGioacchino Del Regno 2023-12-04 12:42:14 +01:00 committed by Boris Brezillon
parent a4f5892914
commit b98e9a84d3
3 changed files with 12 additions and 10 deletions
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2
drivers/gpu/drm/panfrost/panfrost_device.h
View File

@ -94,6 +94,8 @@ struct panfrost_device {
struct device *dev;
struct drm_device *ddev;
struct platform_device *pdev;
int gpu_irq;
int mmu_irq;
void __iomem *iomem;
struct clk *clock;

10
drivers/gpu/drm/panfrost/panfrost_gpu.c
View File

@ -454,7 +454,7 @@ void panfrost_gpu_power_off(struct panfrost_device *pfdev)
int panfrost_gpu_init(struct panfrost_device *pfdev)
{
int err, irq;
int err;
err = panfrost_gpu_soft_reset(pfdev);
if (err)
@ -469,11 +469,11 @@ int panfrost_gpu_init(struct panfrost_device *pfdev)
dma_set_max_seg_size(pfdev->dev, UINT_MAX);
irq = platform_get_irq_byname(to_platform_device(pfdev->dev), "gpu");
if (irq < 0)
return irq;
pfdev->gpu_irq = platform_get_irq_byname(to_platform_device(pfdev->dev), "gpu");
if (pfdev->gpu_irq < 0)
return pfdev->gpu_irq;
err = devm_request_irq(pfdev->dev, irq, panfrost_gpu_irq_handler,
err = devm_request_irq(pfdev->dev, pfdev->gpu_irq, panfrost_gpu_irq_handler,
IRQF_SHARED, KBUILD_MODNAME "-gpu", pfdev);
if (err) {
dev_err(pfdev->dev, "failed to request gpu irq");

10
drivers/gpu/drm/panfrost/panfrost_mmu.c
View File

@ -753,13 +753,13 @@ static irqreturn_t panfrost_mmu_irq_handler_thread(int irq, void *data)
int panfrost_mmu_init(struct panfrost_device *pfdev)
{
int err, irq;
int err;
irq = platform_get_irq_byname(to_platform_device(pfdev->dev), "mmu");
if (irq < 0)
return irq;
pfdev->mmu_irq = platform_get_irq_byname(to_platform_device(pfdev->dev), "mmu");
if (pfdev->mmu_irq < 0)
return pfdev->mmu_irq;
err = devm_request_threaded_irq(pfdev->dev, irq,
err = devm_request_threaded_irq(pfdev->dev, pfdev->mmu_irq,
panfrost_mmu_irq_handler,
panfrost_mmu_irq_handler_thread,
IRQF_SHARED, KBUILD_MODNAME "-mmu",