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pinctrl: renesas: rzg2l: Configure the interrupt type on resume

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Commit dce0919c83 ("irqchip/renesas-rzg2l: Do not set TIEN and TINT
source at the same time") removed the setup of TINT from
rzg2l_irqc_irq_enable().  To address the spurious interrupt issue the
setup of TINT has been moved in rzg2l_tint_set_edge() through
rzg2l_disable_tint_and_set_tint_source().  With this, the interrupts are
not properly re-configured after a suspend-to-RAM cycle.  To address
this issue and avoid spurious interrupts while resumming set the
interrupt type before enabling it.

Fixes: dce0919c83 ("irqchip/renesas-rzg2l: Do not set TIEN and TINT source at the same time")
Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20240419063822.3467424-1-claudiu.beznea.uj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
This commit is contained in:
Claudiu Beznea 2024-04-19 09:38:22 +03:00 • committed by Geert Uytterhoeven
parent aa43c15a79
commit 02cd2d3be1
1 changed files with 13 additions and 10 deletions
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23
drivers/pinctrl/renesas/pinctrl-rzg2l.c
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@ -2045,7 +2045,9 @@ static void rzg2l_gpio_irq_restore(struct rzg2l_pinctrl *pctrl)
for (unsigned int i = 0; i < RZG2L_TINT_MAX_INTERRUPT; i++) { for (unsigned int i = 0; i < RZG2L_TINT_MAX_INTERRUPT; i++) {
struct irq_data *data; struct irq_data *data;
unsigned long flags;
unsigned int virq; unsigned int virq;
int ret;
if (!pctrl->hwirq[i]) if (!pctrl->hwirq[i])
continue; continue;
@ -2063,17 +2065,18 @@ static void rzg2l_gpio_irq_restore(struct rzg2l_pinctrl *pctrl)
continue; continue;
} }
if (!irqd_irq_disabled(data)) { /*
unsigned long flags; * This has to be atomically executed to protect against a concurrent
* interrupt.
/* */
* This has to be atomically executed to protect against a concurrent raw_spin_lock_irqsave(&pctrl->lock.rlock, flags);
* interrupt. ret = rzg2l_gpio_irq_set_type(data, irqd_get_trigger_type(data));
*/ if (!ret && !irqd_irq_disabled(data))
raw_spin_lock_irqsave(&pctrl->lock.rlock, flags);
rzg2l_gpio_irq_enable(data); rzg2l_gpio_irq_enable(data);
raw_spin_unlock_irqrestore(&pctrl->lock.rlock, flags); raw_spin_unlock_irqrestore(&pctrl->lock.rlock, flags);
}
if (ret)
dev_crit(pctrl->dev, "Failed to set IRQ type for virq=%u\n", virq);
} }
} }