Hi,
On 2023/6/9 01:25, Bjorn Helgaas wrote:
On Wed, Jun 07, 2023 at 06:55:44PM +0800, Sui Jingfeng wrote:
From: Sui Jingfeng <suijingfeng@xxxxxxxxxxx>
Because getting IRQ from a device is platform-dependent, PCI devices have
different methods for getting an IRQ. This patch is a preparation patch to
extend the driver for the PCI device support.
Cc: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
Cc: Christian Gmeiner <christian.gmeiner@xxxxxxxxx>
Cc: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
Cc: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Cc: Daniel Vetter <daniel@xxxxxxxx>
Signed-off-by: Sui Jingfeng <suijingfeng@xxxxxxxxxxx>
---
drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 34 ++++++++++++++++++++-------
1 file changed, 25 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
index de8c9894967c..b9c12d3145a2 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
@@ -1817,6 +1817,29 @@ static const struct of_device_id etnaviv_gpu_match[] = {
};
MODULE_DEVICE_TABLE(of, etnaviv_gpu_match);
+static int etnaviv_gpu_register_irq(struct etnaviv_gpu *gpu, int irq)
+{
+ struct device *dev = gpu->dev;
+ int err;
+
+ if (irq < 0) {
+ dev_err(dev, "failed to get irq: %d\n", irq);
Isn't this message redundant because platform_get_irq() already
emitted a message for this case?
Indeed, will be fixed at version.
+ return irq;
+ }
+
+ err = devm_request_irq(dev, irq, irq_handler, 0, dev_name(dev), gpu);
+ if (err) {
+ dev_err(dev, "failed to request irq %u: %d\n", irq, err);
+ return err;
+ }
+
+ gpu->irq = irq;
+
+ dev_info(dev, "irq(%d) handler registered\n", irq);
+
+ return 0;
+}
+
static int etnaviv_gpu_platform_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@@ -1837,16 +1860,9 @@ static int etnaviv_gpu_platform_probe(struct platform_device *pdev)
return PTR_ERR(gpu->mmio);
/* Get Interrupt: */
- gpu->irq = platform_get_irq(pdev, 0);
- if (gpu->irq < 0)
- return gpu->irq;
-
- err = devm_request_irq(&pdev->dev, gpu->irq, irq_handler, 0,
- dev_name(gpu->dev), gpu);
- if (err) {
- dev_err(dev, "failed to request IRQ%u: %d\n", gpu->irq, err);
+ err = etnaviv_gpu_register_irq(gpu, platform_get_irq(pdev, 0));
+ if (err)
return err;
- }
/* Get Clocks: */
gpu->clk_reg = devm_clk_get_optional(&pdev->dev, "reg");
--
2.25.1
--
Jingfeng
