From: gregkh@linuxfoundation•org (Greg Kroah-Hartman)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH 4.1 66/78] irqchip/crossbar: Restore set_wake functionality
Date: Fri, 11 Sep 2015 15:50:07 -0700 [thread overview]
Message-ID: <20150911224615.999831410@linuxfoundation.org> (raw)
In-Reply-To: <20150911224606.758437370@linuxfoundation.org>
4.1-stable review patch. If anyone has any objections, please let me know.
------------------
From: Grygorii Strashko <grygorii.strashko@ti•com>
commit 8200fe4347870d4ad6475048bcdf3e7c106c5268 upstream.
The TI crossbar irqchip doesn't provides any facility to configure the
wakeup sources, but the conversion to hierarchical irqdomains set the
irq_set_wake callback to irq_chip_set_wake_parent. The parent chip
(OMAP wakeupgen) has no irq_set_wake function either so the call will
fail with -ENOSYS. As a result the irq_set_wake() call in the resume
path will trigger an 'Unbalanced wake disable' warning.
Before the conversion the GIC irqchip was the top level irqchip and
correctly flagged with IRQCHIP_SKIP_SET_WAKE.
Restore the correct behaviour by removing the irq_set_type callback
from the crossbar irqchip and set the IRQCHIP_SKIP_SET_WAKE flag which
lets the irq_set_irq_wake() call from the driver succeed.
[ tglx: Massaged changelog ]
Fixes: 783d31863fb8 ('irqchip: crossbar: Convert dra7 crossbar...')
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti•com>
Cc: Sudeep Holla <sudeep.holla@arm•com>
Cc: <linux@arm•linux.org.uk>
Cc: <nsekhar@ti•com>
Cc: <jason@lakedaemon•net>
Cc: <balbi@ti•com>
Cc: <linux-arm-kernel@lists•infradead.org>
Cc: <tony@atomide•com>
Cc: <marc.zyngier@arm•com>
Link: http://lkml.kernel.org/r/1439554830-19502-7-git-send-email-grygorii.strashko at ti.com
Signed-off-by: Thomas Gleixner <tglx@linutronix•de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation•org>
---
drivers/irqchip/irq-crossbar.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/irqchip/irq-crossbar.c
+++ b/drivers/irqchip/irq-crossbar.c
@@ -68,9 +68,9 @@ static struct irq_chip crossbar_chip = {
.irq_mask = irq_chip_mask_parent,
.irq_unmask = irq_chip_unmask_parent,
.irq_retrigger = irq_chip_retrigger_hierarchy,
- .irq_set_wake = irq_chip_set_wake_parent,
.irq_set_type = irq_chip_set_type_parent,
- .flags = IRQCHIP_MASK_ON_SUSPEND,
+ .flags = IRQCHIP_MASK_ON_SUSPEND |
+ IRQCHIP_SKIP_SET_WAKE,
#ifdef CONFIG_SMP
.irq_set_affinity = irq_chip_set_affinity_parent,
#endif
next prev parent reply other threads:[~2015-09-11 22:50 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20150911224606.758437370@linuxfoundation.org>
2015-09-11 22:50 ` [PATCH 4.1 64/78] irqchip/crossbar: Restore the irq_set_type() mechanism Greg Kroah-Hartman
2015-09-11 22:50 ` [PATCH 4.1 65/78] irqchip/crossbar: Restore the mask on suspend behaviour Greg Kroah-Hartman
2015-09-11 22:50 ` Greg Kroah-Hartman [this message]
2015-09-11 22:50 ` [PATCH 4.1 67/78] ARM: OMAP: wakeupgen: Restore the irq_set_type() mechanism Greg Kroah-Hartman
2015-09-11 22:50 ` [PATCH 4.1 68/78] genirq: Dont return ENOSYS in irq_chip_retrigger_hierarchy Greg Kroah-Hartman
2015-09-11 22:50 ` [PATCH 4.1 69/78] genirq: Introduce irq_chip_set_type_parent() helper Greg Kroah-Hartman
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20150911224615.999831410@linuxfoundation.org \
--to=gregkh@linuxfoundation$(echo .)org \
--cc=linux-arm-kernel@lists$(echo .)infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox