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

Commit-ID:     2f814778950ecc99ca5e71472b626dddb2d2b756
Gitweb:        https://git.kernel.org/tip/2f814778950ecc99ca5e71472b626dddb2d2b756
Author:        Biju Das <biju.das.jz@bp.renesas.com>
AuthorDate:    Wed, 25 Mar 2026 19:24:27 
Committer:     Thomas Gleixner <tglx@kernel.org>
CommitterDate: Thu, 26 Mar 2026 16:56:23 +01:00

irqchip/renesas-rzg2l: Drop IRQC_NUM_IRQ macro

The total number of interrupts in RZ/G2L and RZ/G3L SoC are different.
Introduce struct rzg2l_hw_info to handle the hardware differences and
replace the macro IRQC_NUM_IRQ with num_irq variable in struct
rzg2l_hw_info.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20260325192451.172562-13-biju.das.jz@bp.renesas.com
---
 drivers/irqchip/irq-renesas-rzg2l.c | 34 +++++++++++++++++++++-------
 1 file changed, 26 insertions(+), 8 deletions(-)

diff --git a/drivers/irqchip/irq-renesas-rzg2l.c b/drivers/irqchip/irq-renesas-rzg2l.c
index db5d1a5..2b6dac7 100644
--- a/drivers/irqchip/irq-renesas-rzg2l.c
+++ b/drivers/irqchip/irq-renesas-rzg2l.c
@@ -24,7 +24,6 @@
 #define IRQC_IRQ_COUNT			8
 #define IRQC_TINT_START			(IRQC_IRQ_START + IRQC_IRQ_COUNT)
 #define IRQC_TINT_COUNT			32
-#define IRQC_NUM_IRQ			(IRQC_TINT_START + IRQC_TINT_COUNT)
 
 #define ISCR				0x10
 #define IITSR				0x14
@@ -69,12 +68,21 @@ struct rzg2l_irqc_reg_cache {
 };
 
 /**
+ * struct rzg2l_hw_info - Interrupt Control Unit controller hardware info structure.
+ * @num_irq:		Total Number of interrupts
+ */
+struct rzg2l_hw_info {
+	unsigned int	num_irq;
+};
+
+/**
  * struct rzg2l_irqc_priv - IRQ controller private data structure
  * @base:	Controller's base address
  * @irq_chip:	Pointer to struct irq_chip for irq
  * @tint_chip:	Pointer to struct irq_chip for tint
  * @fwspec:	IRQ firmware specific data
  * @lock:	Lock to serialize access to hardware registers
+ * @info:	Hardware specific data
  * @cache:	Registers cache for suspend/resume
  */
 static struct rzg2l_irqc_priv {
@@ -83,6 +91,7 @@ static struct rzg2l_irqc_priv {
 	const struct irq_chip		*tint_chip;
 	struct irq_fwspec		*fwspec;
 	raw_spinlock_t			lock;
+	struct rzg2l_hw_info		info;
 	struct rzg2l_irqc_reg_cache	cache;
 } *rzg2l_irqc_data;
 
@@ -571,7 +580,7 @@ static int rzg2l_irqc_alloc(struct irq_domain *domain, unsigned int virq,
 		chip = priv->irq_chip;
 	}
 
-	if (hwirq > (IRQC_NUM_IRQ - 1))
+	if (hwirq >= priv->info.num_irq)
 		return -EINVAL;
 
 	ret = irq_domain_set_hwirq_and_chip(domain, virq, hwirq, chip, (void *)(uintptr_t)tint);
@@ -594,7 +603,7 @@ static int rzg2l_irqc_parse_interrupts(struct rzg2l_irqc_priv *priv,
 	unsigned int i;
 	int ret;
 
-	for (i = 0; i < IRQC_NUM_IRQ; i++) {
+	for (i = 0; i < priv->info.num_irq; i++) {
 		ret = of_irq_parse_one(np, i, &map);
 		if (ret)
 			return ret;
@@ -607,7 +616,8 @@ static int rzg2l_irqc_parse_interrupts(struct rzg2l_irqc_priv *priv,
 
 static int rzg2l_irqc_common_probe(struct platform_device *pdev, struct device_node *parent,
 				   const struct irq_chip *irq_chip,
-				   const struct irq_chip *tint_chip)
+				   const struct irq_chip *tint_chip,
+				   const struct rzg2l_hw_info info)
 {
 	struct irq_domain *irq_domain, *parent_domain;
 	struct device_node *node = pdev->dev.of_node;
@@ -630,7 +640,9 @@ 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,
+	rzg2l_irqc_data->info = info;
+
+	rzg2l_irqc_data->fwspec = devm_kcalloc(&pdev->dev, info.num_irq,
 					       sizeof(*rzg2l_irqc_data->fwspec), GFP_KERNEL);
 	if (!rzg2l_irqc_data->fwspec)
 		return -ENOMEM;
@@ -655,7 +667,7 @@ static int rzg2l_irqc_common_probe(struct platform_device *pdev, struct device_n
 
 	raw_spin_lock_init(&rzg2l_irqc_data->lock);
 
-	irq_domain = irq_domain_create_hierarchy(parent_domain, 0, IRQC_NUM_IRQ, dev_fwnode(dev),
+	irq_domain = irq_domain_create_hierarchy(parent_domain, 0, info.num_irq, dev_fwnode(dev),
 						 &rzg2l_irqc_domain_ops, rzg2l_irqc_data);
 	if (!irq_domain) {
 		pm_runtime_put_sync(dev);
@@ -667,14 +679,20 @@ static int rzg2l_irqc_common_probe(struct platform_device *pdev, struct device_n
 	return 0;
 }
 
+static const struct rzg2l_hw_info rzg2l_hw_params = {
+	.num_irq	= IRQC_IRQ_START + IRQC_IRQ_COUNT + IRQC_TINT_COUNT,
+};
+
 static int rzg2l_irqc_probe(struct platform_device *pdev, struct device_node *parent)
 {
-	return rzg2l_irqc_common_probe(pdev, parent, &rzg2l_irqc_irq_chip, &rzg2l_irqc_tint_chip);
+	return rzg2l_irqc_common_probe(pdev, parent, &rzg2l_irqc_irq_chip, &rzg2l_irqc_tint_chip,
+				       rzg2l_hw_params);
 }
 
 static int rzfive_irqc_probe(struct platform_device *pdev, struct device_node *parent)
 {
-	return rzg2l_irqc_common_probe(pdev, parent, &rzfive_irqc_irq_chip, &rzfive_irqc_tint_chip);
+	return rzg2l_irqc_common_probe(pdev, parent, &rzfive_irqc_irq_chip, &rzfive_irqc_tint_chip,
+				       rzg2l_hw_params);
 }
 
 IRQCHIP_PLATFORM_DRIVER_BEGIN(rzg2l_irqc)