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Message-ID: <1385388587-16442-1-git-send-email-ldewangan@nvidia.com>
Date: Mon, 25 Nov 2013 19:39:47 +0530
From: Laxman Dewangan <ldewangan@...dia.com>
To: <tglx@...utronix.de>
CC: <linux-kernel@...r.kernel.org>, <ian.campbell@...rix.com>,
<rjw@...ysocki.net>, <len.brown@...el.com>,
<gregkh@...uxfoundation.org>, <linux-pm@...r.kernel.org>,
<heiko@...ech.de>, <pavel@....cz>,
Laxman Dewangan <ldewangan@...dia.com>
Subject: [REPOST PATCH V2] irq: enable all irqs unconditionally in irq_resume
When system enters into suspend, it disable all irqs in single
function call. This disables EARLY_RESUME irqs also along with
normal irqs.
The EARLY_RESUME irqs get enabled in sys_core_ops->resume and
non-EARLY_RESUME irqs get enabled in normal system resume path.
When suspend_noirq failed or suspend is aborted for any reason,
the EARLY_RESUME irqs do not get enabled as sys_core_ops->resume()
call did not happen. It only enables the non-EARLY_RESUME irqs in normal
disable for remaining life of system.
Enable all irqs unconditionally in normal irq_resume() regardless of
EARLY_RESUME irqs have been already enabled or not.
Signed-off-by: Laxman Dewangan <ldewangan@...dia.com>
Acked-by-and-tested-by: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
Acked-by: Heiko Stuebner <heiko@...ech.de>
Reviewed-by: Pavel Machek <pavel@....cz>
---
Creating this patch based on disucssion on patch
[PATCH] irq: enable suspended EARLY_RESUME irqs forcefully if not resumed
Making simple change as susggested by Thomas.
Reposting it with ack and review.
kernel/irq/pm.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/kernel/irq/pm.c b/kernel/irq/pm.c
index cb228bf..abcd6ca 100644
--- a/kernel/irq/pm.c
+++ b/kernel/irq/pm.c
@@ -50,7 +50,7 @@ static void resume_irqs(bool want_early)
bool is_early = desc->action &&
desc->action->flags & IRQF_EARLY_RESUME;
- if (is_early != want_early)
+ if (!is_early && want_early)
continue;
raw_spin_lock_irqsave(&desc->lock, flags);
--
1.7.1.1
--
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