Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1220998

[PATCH 2/2] irqchip: renesas-irqc: Propagate wake-up settings to parent

Show all headers | View raw

The renesas-irqc interrupt controller is cascaded to the GIC, but its
driver doesn't propagate wake-up settings to the parent interrupt
controller.

Since commit aec89ef72ba6c944 ("irqchip/gic: Enable SKIP_SET_WAKE and
MASK_ON_SUSPEND"), the GIC driver masks interrupts during suspend, and
wake-up through gpio-keys now fails on r8a73a4/ape6evm.

Fix this by propagating wake-up settings to the parent interrupt
controller. There's no need to handle irq_set_irq_wake() failures, as
the renesas-irqc interrupt controller is always cascaded to a GIC, and
the GIC driver always sets SKIP_SET_WAKE since the aforementioned
commit.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 drivers/irqchip/irq-renesas-irqc.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/irqchip/irq-renesas-irqc.c b/drivers/irqchip/irq-renesas-irqc.c
index 2aa3add711a6612a..49f6c41d94f91d4d 100644
--- a/drivers/irqchip/irq-renesas-irqc.c
+++ b/drivers/irqchip/irq-renesas-irqc.c
@@ -121,6 +121,9 @@ static int irqc_irq_set_type(struct irq_data *d, unsigned int type)
 static int irqc_irq_set_wake(struct irq_data *d, unsigned int on)
 {
 	struct irqc_priv *p = irq_data_get_irq_chip_data(d);
+	int hw_irq = irqd_to_hwirq(d);
+
+	irq_set_irq_wake(p->irq[hw_irq].requested_irq, on);
 
 	if (!p->clk)
 		return 0;
-- 
1.9.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | Next — Next in thread | Find similar | Unroll thread

Thread

[PATCH 2/2] irqchip: renesas-irqc: Propagate wake-up settings to parent Geert Uytterhoeven <geert+renesas@glider.be> - 2015-09-08 19:10 +0200
  [tip:irq/urgent] irqchip/renesas-irqc:   Propagate wake-up settings to parent tip-bot for Geert Uytterhoeven <tipbot@zytor.com> - 2015-09-15 18:00 +0200

csiph-web