diff mbox series

[4/7] irqchip/irq-mvebu-icu: Remove the double SATA ports interrupt hack

Message ID 20201007154554.66650-5-sven.auhagen@voleatech.de
State New
Headers show
Series Armada8k enable per-port SATA interrupts and drop a hack in the IRQ subsystem | expand

Commit Message

Sven Auhagen Oct. 7, 2020, 3:45 p.m. UTC
From: Miquel Raynal <miquel.raynal@bootlin.com>

When writing the driver, a hack was introduced to configure both SATA
interrupts regardless of the port in use to overcome a limitation in
the SATA core. Now that this limitation has been addressed and the
hack moved in the (historically) responsible SATA driver,
ahci_{platform,mvebu}.c, let's clean this driver section.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
---
 drivers/irqchip/irq-mvebu-icu.c | 18 ------------------
 1 file changed, 18 deletions(-)
diff mbox series

Patch

diff --git a/drivers/irqchip/irq-mvebu-icu.c b/drivers/irqchip/irq-mvebu-icu.c
index 91adf771f185..3e29f8d5b33b 100644
--- a/drivers/irqchip/irq-mvebu-icu.c
+++ b/drivers/irqchip/irq-mvebu-icu.c
@@ -38,8 +38,6 @@ 
 
 /* ICU definitions */
 #define ICU_MAX_IRQS		207
-#define ICU_SATA0_ICU_ID	109
-#define ICU_SATA1_ICU_ID	107
 
 struct mvebu_icu_subset_data {
 	unsigned int icu_group;
@@ -111,22 +109,6 @@  static void mvebu_icu_write_msg(struct msi_desc *desc, struct msi_msg *msg)
 	}
 
 	writel_relaxed(icu_int, icu->base + ICU_INT_CFG(d->hwirq));
-
-	/*
-	 * The SATA unit has 2 ports, and a dedicated ICU entry per
-	 * port. The ahci sata driver supports only one irq interrupt
-	 * per SATA unit. To solve this conflict, we configure the 2
-	 * SATA wired interrupts in the south bridge into 1 GIC
-	 * interrupt in the north bridge. Even if only a single port
-	 * is enabled, if sata node is enabled, both interrupts are
-	 * configured (regardless of which port is actually in use).
-	 */
-	if (d->hwirq == ICU_SATA0_ICU_ID || d->hwirq == ICU_SATA1_ICU_ID) {
-		writel_relaxed(icu_int,
-			       icu->base + ICU_INT_CFG(ICU_SATA0_ICU_ID));
-		writel_relaxed(icu_int,
-			       icu->base + ICU_INT_CFG(ICU_SATA1_ICU_ID));
-	}
 }
 
 static struct irq_chip mvebu_icu_nsr_chip = {