linux-kernel - [PATCH] irqchip/irq-imx-gpcv2: Clear OF

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Date:   Tue, 11 Apr 2017 09:48:09 -0700
From:   Andrey Smirnov <andrew.smirnov@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     Andrey Smirnov <andrew.smirnov@...il.com>, yurovsky@...il.com,
        Thomas Gleixner <tglx@...utronix.de>,
        Jason Cooper <jason@...edaemon.net>,
        Marc Zyngier <marc.zyngier@....com>
Subject: [PATCH] irqchip/irq-imx-gpcv2: Clear OF_POPULATED flag

Clear OF_POPULATED flag, so that GPC power domain driver[1] can be
bound to "gpc" node as well.

[1] https://lkml.org/lkml/2017/3/28/835

Cc: yurovsky@...il.com
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Jason Cooper <jason@...edaemon.net>
Cc: Marc Zyngier <marc.zyngier@....com>
Signed-off-by: Andrey Smirnov <andrew.smirnov@...il.com>
---

Marc:

You've expressed you disagreement (in [thread]) for adding generic
infrastructure to perform this kind of trickery because of its
DT-specific nature. Any chance this, more contained version of it, is
acceptable?

Thanks,
Andrey Smirnov

[thread] https://lkml.org/lkml/2017/1/30/241

 drivers/irqchip/irq-imx-gpcv2.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/irqchip/irq-imx-gpcv2.c b/drivers/irqchip/irq-imx-gpcv2.c
index 15af9a9..e13236f 100644
--- a/drivers/irqchip/irq-imx-gpcv2.c
+++ b/drivers/irqchip/irq-imx-gpcv2.c
@@ -266,6 +266,11 @@ static int __init imx_gpcv2_irqchip_init(struct device_node *node,
 	imx_gpcv2_instance = cd;
 	register_syscore_ops(&imx_gpcv2_syscore_ops);
 
+	/*
+	 * Clear the OF_POPULATED flag set in of_irq_init so that
+	 * later the GPC power domain driver will not be skipped.
+	 */
+	of_node_clear_flag(node, OF_POPULATED);
 	return 0;
 }
 
-- 
2.9.3