diff options
| -rw-r--r-- | drivers/irqchip/irq-renesas-rzg2l.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/irqchip/irq-renesas-rzg2l.c b/drivers/irqchip/irq-renesas-rzg2l.c index 9494fc26259c..5285bc817dd0 100644 --- a/drivers/irqchip/irq-renesas-rzg2l.c +++ b/drivers/irqchip/irq-renesas-rzg2l.c @@ -99,8 +99,14 @@ static void rzg2l_irq_eoi(struct irq_data *d) * ISCR can only be cleared if the type is falling-edge, rising-edge or * falling/rising-edge. */ - if ((iscr & bit) && (iitsr & IITSR_IITSEL_MASK(hw_irq))) + if ((iscr & bit) && (iitsr & IITSR_IITSEL_MASK(hw_irq))) { writel_relaxed(iscr & ~bit, priv->base + ISCR); + /* + * Enforce that the posted write is flushed to prevent that the + * just handled interrupt is raised again. + */ + readl_relaxed(priv->base + ISCR); + } } static void rzg2l_tint_eoi(struct irq_data *d) @@ -111,8 +117,14 @@ static void rzg2l_tint_eoi(struct irq_data *d) u32 reg; reg = readl_relaxed(priv->base + TSCR); - if (reg & bit) + if (reg & bit) { writel_relaxed(reg & ~bit, priv->base + TSCR); + /* + * Enforce that the posted write is flushed to prevent that the + * just handled interrupt is raised again. + */ + readl_relaxed(priv->base + TSCR); + } } static void rzg2l_irqc_eoi(struct irq_data *d) |