linux-kernel - [PATCH] regmap: irq: Enable irq retriggering for nested irqs

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Date:	Fri, 26 Feb 2016 17:53:57 +0200
From:	Grygorii Strashko <grygorii.strashko@...com>
To:	Mark Brown <broonie@...nel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	<linux-kernel@...r.kernel.org>
CC:	Lee Jones <lee.jones@...aro.org>, Nishanth Menon <nm@...com>,
	Laxman Dewangan <ldewangan@...dia.com>,
	Sekhar Nori <nsekhar@...com>,
	Grygorii Strashko <grygorii.strashko@...com>
Subject: [PATCH] regmap: irq: Enable irq retriggering for nested irqs

When nested interrupts are handled with regmap irq framework, we need to
mark the interrupts to be resend for pending interrupts on enable_irq.
Else the events might be lost for nested irqs.

Signed-off-by: Grygorii Strashko <grygorii.strashko@...com>
---
 drivers/base/regmap/regmap-irq.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c
index 9b0d202..8d9004d 100644
--- a/drivers/base/regmap/regmap-irq.c
+++ b/drivers/base/regmap/regmap-irq.c
@@ -379,6 +379,7 @@ static int regmap_irq_map(struct irq_domain *h, unsigned int virq,
 	irq_set_chip_data(virq, data);
 	irq_set_chip(virq, &data->irq_chip);
 	irq_set_nested_thread(virq, 1);
+	irq_set_parent(virq, data->irq);
 	irq_set_noprobe(virq);
 
 	return 0;
-- 
2.7.2