[PATCH v3 2/2] irqchip/renesas-rzg2l: Simplify rzg2l_irqc_irq_{en,dis}able()

[Biju Das <biju.das.jz@bp.renesas.com>]

Simplify rzg2l_irqc_irq_{en,dis}able() by moving common code to
rzg2l_tint_irq_endisable().

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
---
v2->v3:
 * Restored the patch from series#1.
v1->v2:
 * Dropped the patch as it is merged with patch#5.
---
 drivers/irqchip/irq-renesas-rzg2l.c | 28 +++++++++++-----------------
 1 file changed, 11 insertions(+), 17 deletions(-)

diff --git a/drivers/irqchip/irq-renesas-rzg2l.c b/drivers/irqchip/irq-renesas-rzg2l.c
index ae67fec2ab46..f6484bf15e0b 100644
--- a/drivers/irqchip/irq-renesas-rzg2l.c
+++ b/drivers/irqchip/irq-renesas-rzg2l.c
@@ -138,7 +138,7 @@ static void rzg2l_irqc_eoi(struct irq_data *d)
 	irq_chip_eoi_parent(d);
 }
 
-static void rzg2l_irqc_irq_disable(struct irq_data *d)
+static void rzg2l_tint_irq_endisable(struct irq_data *d, bool enable)
 {
 	unsigned int hw_irq = irqd_to_hwirq(d);
 
@@ -151,30 +151,24 @@ static void rzg2l_irqc_irq_disable(struct irq_data *d)
 
 		raw_spin_lock(&priv->lock);
 		reg = readl_relaxed(priv->base + TSSR(tssr_index));
-		reg &= ~(TIEN << TSSEL_SHIFT(tssr_offset));
+		if (enable)
+			reg |= TIEN << TSSEL_SHIFT(tssr_offset);
+		else
+			reg &= ~(TIEN << TSSEL_SHIFT(tssr_offset));
 		writel_relaxed(reg, priv->base + TSSR(tssr_index));
 		raw_spin_unlock(&priv->lock);
 	}
+}
+
+static void rzg2l_irqc_irq_disable(struct irq_data *d)
+{
+	rzg2l_tint_irq_endisable(d, false);
 	irq_chip_disable_parent(d);
 }
 
 static void rzg2l_irqc_irq_enable(struct irq_data *d)
 {
-	unsigned int hw_irq = irqd_to_hwirq(d);
-
-	if (hw_irq >= IRQC_TINT_START && hw_irq < IRQC_NUM_IRQ) {
-		struct rzg2l_irqc_priv *priv = irq_data_to_priv(d);
-		u32 offset = hw_irq - IRQC_TINT_START;
-		u32 tssr_offset = TSSR_OFFSET(offset);
-		u8 tssr_index = TSSR_INDEX(offset);
-		u32 reg;
-
-		raw_spin_lock(&priv->lock);
-		reg = readl_relaxed(priv->base + TSSR(tssr_index));
-		reg |= TIEN << TSSEL_SHIFT(tssr_offset);
-		writel_relaxed(reg, priv->base + TSSR(tssr_index));
-		raw_spin_unlock(&priv->lock);
-	}
+	rzg2l_tint_irq_endisable(d, true);
 	irq_chip_enable_parent(d);
 }
 
-- 
2.25.1