[PATCH 1/2] memory: omap-gpmc: Use platform_get_irq() to get the interrupt

From: Lad Prabhakar
Date: Tue Dec 21 2021 - 15:39:32 EST


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@xxxxxxxxxxxxxx>
---
drivers/memory/omap-gpmc.c | 10 +++-------
1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/drivers/memory/omap-gpmc.c b/drivers/memory/omap-gpmc.c
index be0858bff4d3..56f401ba53a5 100644
--- a/drivers/memory/omap-gpmc.c
+++ b/drivers/memory/omap-gpmc.c
@@ -2510,13 +2510,9 @@ static int gpmc_probe(struct platform_device *pdev)
if (IS_ERR(gpmc_base))
return PTR_ERR(gpmc_base);

- res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
- if (!res) {
- dev_err(&pdev->dev, "Failed to get resource: irq\n");
- return -ENOENT;
- }
-
- gpmc->irq = res->start;
+ gpmc->irq = platform_get_irq(pdev, 0);
+ if (gpmc->irq < 0)
+ return gpmc->irq;

gpmc_l3_clk = devm_clk_get(&pdev->dev, "fck");
if (IS_ERR(gpmc_l3_clk)) {
--
2.17.1