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authorLad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>2021-12-21 21:26:08 +0000
committerMiquel Raynal <miquel.raynal@bootlin.com>2021-12-22 17:26:01 +0100
commit3b2af5c6174c821134eb62f69f830bdb96662187 (patch)
tree00a7d724a4e45772de7a6ec96df803b91a41a27f /drivers/mtd
parentb90c42c7476122db8e993cb025a0179cc4356339 (diff)
mtd: rawnand: omap_elm: Use platform_get_irq() to get the interrupt
platform_get_resource(pdev, IORESOURCE_IRQ, ..) relies on static allocation of IRQ resources in DT core code, this causes an issue when using hierarchical interrupt domains using "interrupts" property in the node as this bypasses the hierarchical setup and messes up the irq chaining. In preparation for removal of static setup of IRQ resource from DT core code use platform_get_irq(). Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20211221212609.31290-2-prabhakar.mahadev-lad.rj@bp.renesas.com
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/nand/raw/omap_elm.c16
1 files changed, 7 insertions, 9 deletions
diff --git a/drivers/mtd/nand/raw/omap_elm.c b/drivers/mtd/nand/raw/omap_elm.c
index 8bab753211e9..db105d9b560c 100644
--- a/drivers/mtd/nand/raw/omap_elm.c
+++ b/drivers/mtd/nand/raw/omap_elm.c
@@ -384,8 +384,8 @@ static irqreturn_t elm_isr(int this_irq, void *dev_id)
static int elm_probe(struct platform_device *pdev)
{
int ret = 0;
- struct resource *irq;
struct elm_info *info;
+ int irq;
info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
if (!info)
@@ -393,20 +393,18 @@ static int elm_probe(struct platform_device *pdev)
info->dev = &pdev->dev;
- irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
- if (!irq) {
- dev_err(&pdev->dev, "no irq resource defined\n");
- return -ENODEV;
- }
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0)
+ return irq;
info->elm_base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(info->elm_base))
return PTR_ERR(info->elm_base);
- ret = devm_request_irq(&pdev->dev, irq->start, elm_isr, 0,
- pdev->name, info);
+ ret = devm_request_irq(&pdev->dev, irq, elm_isr, 0,
+ pdev->name, info);
if (ret) {
- dev_err(&pdev->dev, "failure requesting %pr\n", irq);
+ dev_err(&pdev->dev, "failure requesting %d\n", irq);
return ret;
}