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irqchip/renesas-rzg2l: Dynamically allocate fwspec array

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The total number of interrupts in RZ/G2L and RZ/G3L SoC are different. The
RZ/G3L has 16 external interrupts whereas RZ/G2L has only 8 external
interrupts. Dynamically allocate fwspec memory instead of static allocation
to support both SoCs.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20260325192451.172562-12-biju.das.jz@bp.renesas.com
This commit is contained in:
Biju Das 2026-03-25 19:24:26 +00:00 committed by Thomas Gleixner
parent bcb3066908
commit b8e06e4e41
1 changed files with 6 additions and 1 deletions
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7
drivers/irqchip/irq-renesas-rzg2l.c
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@ -81,7 +81,7 @@ static struct rzg2l_irqc_priv {
void __iomem *base;
const struct irq_chip *irq_chip;
const struct irq_chip *tint_chip;
struct irq_fwspec fwspec[IRQC_NUM_IRQ];
struct irq_fwspec *fwspec;
raw_spinlock_t lock;
struct rzg2l_irqc_reg_cache cache;
} *rzg2l_irqc_data;
@ -630,6 +630,11 @@ static int rzg2l_irqc_common_probe(struct platform_device *pdev, struct device_n
if (IS_ERR(rzg2l_irqc_data->base))
return PTR_ERR(rzg2l_irqc_data->base);
rzg2l_irqc_data->fwspec = devm_kcalloc(&pdev->dev, IRQC_NUM_IRQ,
sizeof(*rzg2l_irqc_data->fwspec), GFP_KERNEL);
if (!rzg2l_irqc_data->fwspec)
return -ENOMEM;
ret = rzg2l_irqc_parse_interrupts(rzg2l_irqc_data, node);
if (ret)
return dev_err_probe(dev, ret, "cannot parse interrupts: %d\n", ret);