Commit ecb78b29 authored by Lad Prabhakar's avatar Lad Prabhakar Committed by Miquel Raynal
Browse files

mtd: rawnand: gpmi: Use platform_get_irq_byname() to get the interrupt 



platform_get_resource_byname(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_byname().

Signed-off-by: default avatarLad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: default avatarMiquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20211221212609.31290-3-prabhakar.mahadev-lad.rj@bp.renesas.com
parent 3b2af5c6

drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c

+4 −7
Original line number Diff line number Diff line
@@ -991,16 +991,13 @@ static int acquire_bch_irq(struct gpmi_nand_data *this, irq_handler_t irq_h) 
{

	struct platform_device *pdev = this->pdev;

	const char *res_name = GPMI_NAND_BCH_INTERRUPT_RES_NAME;

	struct resource *r;

	int err;



	r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, res_name);

	if (!r) {

		dev_err(this->dev, "Can't get resource for %s\n", res_name);

		return -ENODEV;

	}

	err = platform_get_irq_byname(pdev, res_name);

	if (err < 0)

		return err;



	err = devm_request_irq(this->dev, r->start, irq_h, 0, res_name, this);

	err = devm_request_irq(this->dev, err, irq_h, 0, res_name, this);

	if (err)

		dev_err(this->dev, "error requesting BCH IRQ\n");