The following commit has been merged into the irq/drivers branch of tip:

Commit-ID:     b8e06e4e419bd3dd99f832d728f17007ada3359c
Gitweb:        https://git.kernel.org/tip/b8e06e4e419bd3dd99f832d728f17007ada3359c
Author:        Biju Das <biju.das.jz@bp.renesas.com>
AuthorDate:    Wed, 25 Mar 2026 19:24:26 
Committer:     Thomas Gleixner <tglx@kernel.org>
CommitterDate: Thu, 26 Mar 2026 16:56:22 +01:00

irqchip/renesas-rzg2l: Dynamically allocate fwspec array

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
---
 drivers/irqchip/irq-renesas-rzg2l.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/irqchip/irq-renesas-rzg2l.c b/drivers/irqchip/irq-renesas-rzg2l.c
index bb6400c..db5d1a5 100644
--- a/drivers/irqchip/irq-renesas-rzg2l.c
+++ b/drivers/irqchip/irq-renesas-rzg2l.c
@@ -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);