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platform_device cleanup iomap

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Ciro Santilli
2017-07-09 08:09:59 +01:00
parent cbe8b9fa22
commit d35218e410
1 changed files with 3 additions and 1 deletions
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4
kernel_module/platform_device.c
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@@ -29,6 +29,8 @@ static void __iomem *map;
static irqreturn_t lkmc_irq_handler(int irq, void *dev) static irqreturn_t lkmc_irq_handler(int irq, void *dev)
{ {
/* TODO this 34 and not 18 as in the DTS, likely the interrupt controller moves it around.
* Understand precisely. 34 = 18 + 16. */
pr_info("lkmc_irq_handler irq = %d dev = %llx\n", irq, *(unsigned long long *)dev); pr_info("lkmc_irq_handler irq = %d dev = %llx\n", irq, *(unsigned long long *)dev);
/* ACK the IRQ. */ /* ACK the IRQ. */
iowrite32(0x9ABCDEF0, map + 4); iowrite32(0x9ABCDEF0, map + 4);
@@ -88,7 +90,7 @@ static int lkmc_platform_device_remove(struct platform_device *pdev)
{ {
dev_info(&pdev->dev, "remove\n"); dev_info(&pdev->dev, "remove\n");
free_irq(irq, &pdev->dev); free_irq(irq, &pdev->dev);
/* TODO free iomap. */ iounmap(map);
release_mem_region(res.start, resource_size(&res)); release_mem_region(res.start, resource_size(&res));
return 0; return 0;
} }