diff options
Diffstat (limited to 'drivers/irqchip/irq-renesas-rzv2h.c')
| -rw-r--r-- | drivers/irqchip/irq-renesas-rzv2h.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/irqchip/irq-renesas-rzv2h.c b/drivers/irqchip/irq-renesas-rzv2h.c index 3d5b5fdf9bde..1c12e6ec1370 100644 --- a/drivers/irqchip/irq-renesas-rzv2h.c +++ b/drivers/irqchip/irq-renesas-rzv2h.c @@ -170,6 +170,14 @@ static void rzv2h_tint_irq_endisable(struct irq_data *d, bool enable) else tssr &= ~ICU_TSSR_TIEN(tssel_n, priv->info->field_width); writel_relaxed(tssr, priv->base + priv->info->t_offs + ICU_TSSR(k)); + + /* + * A glitch in the edge detection circuit can cause a spurious + * interrupt. Clear the status flag after setting the ICU_TSSRk + * registers, which is recommended by the hardware manual as a + * countermeasure. + */ + writel_relaxed(BIT(tint_nr), priv->base + priv->info->t_offs + ICU_TSCLR); } static void rzv2h_icu_irq_disable(struct irq_data *d) @@ -514,8 +522,9 @@ static int rzv2h_icu_init_common(struct device_node *node, struct device_node *p raw_spin_lock_init(&rzv2h_icu_data->lock); - irq_domain = irq_domain_add_hierarchy(parent_domain, 0, ICU_NUM_IRQ, node, - &rzv2h_icu_domain_ops, rzv2h_icu_data); + irq_domain = irq_domain_create_hierarchy(parent_domain, 0, ICU_NUM_IRQ, + of_fwnode_handle(node), &rzv2h_icu_domain_ops, + rzv2h_icu_data); if (!irq_domain) { dev_err(&pdev->dev, "failed to add irq domain\n"); ret = -ENOMEM; |