[irqchip: irq/irqchip-fixes] irqchip: renesas-rzg2l: Fix logic to clear TINT interrupt source

["irqchip-bot for Biju Das" <tip-bot2@linutronix.de>]

The following commit has been merged into the irq/irqchip-fixes branch of irqchip:

Commit-ID:     9b8df572ba3f4e544366196820a719a40774433e
Gitweb:        https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms/9b8df572ba3f4e544366196820a719a40774433e
Author:        Biju Das <biju.das.jz@bp.renesas.com>
AuthorDate:    Mon, 18 Sep 2023 13:24:09 +01:00
Committer:     Marc Zyngier <maz@kernel.org>
CommitterDate: Sun, 24 Sep 2023 10:18:19 +01:00

irqchip: renesas-rzg2l: Fix logic to clear TINT interrupt source

The logic to clear the TINT interrupt source in rzg2l_irqc_irq_disable()
is wrong as the mask is correct only for LSB on the TSSR register.
This issue is found when testing with two TINT interrupt sources. So fix
the logic for all TINTs by using the macro TSSEL_SHIFT() to multiply
tssr_offset with 8.

Fixes: 3fed09559cd8 ("irqchip: Add RZ/G2L IA55 Interrupt Controller driver")
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Tested-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20230918122411.237635-2-biju.das.jz@bp.renesas.com
---
 drivers/irqchip/irq-renesas-rzg2l.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/irqchip/irq-renesas-rzg2l.c b/drivers/irqchip/irq-renesas-rzg2l.c
index 4bbfa2b..2cee547 100644
--- a/drivers/irqchip/irq-renesas-rzg2l.c
+++ b/drivers/irqchip/irq-renesas-rzg2l.c
@@ -118,7 +118,7 @@ static void rzg2l_irqc_irq_disable(struct irq_data *d)
 
 		raw_spin_lock(&priv->lock);
 		reg = readl_relaxed(priv->base + TSSR(tssr_index));
-		reg &= ~(TSSEL_MASK << tssr_offset);
+		reg &= ~(TSSEL_MASK << TSSEL_SHIFT(tssr_offset));
 		writel_relaxed(reg, priv->base + TSSR(tssr_index));
 		raw_spin_unlock(&priv->lock);
 	}