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From: Peter Hurley <peter@hurleysoftware.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	"Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Cc: linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org,
	Jiri Slaby <jslaby@suse.cz>,
	Peter Hurley <peter@hurleysoftware.com>
Subject: [PATCH v2 4/4] serial: 8250_pnp: Override pnp suspend for no_console_suspend
Date: Wed,  5 Nov 2014 14:02:05 -0500	[thread overview]
Message-ID: <1415214125-14751-1-git-send-email-peter@hurleysoftware.com> (raw)
In-Reply-To: <1415212854-16944-5-git-send-email-peter@hurleysoftware.com>

Prevent PNP bus from powering down the serial console device
when suspending if the no_console_suspend command line option is set.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
---
 drivers/tty/serial/8250/8250_pnp.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/tty/serial/8250/8250_pnp.c b/drivers/tty/serial/8250/8250_pnp.c
index 50b7c89..4aefaf2 100644
--- a/drivers/tty/serial/8250/8250_pnp.c
+++ b/drivers/tty/serial/8250/8250_pnp.c
@@ -487,7 +487,7 @@ serial_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id)
 
 	if (uart_console(&port8250->port) && !console_suspend_enabled) {
 		info->override_disable = !!(dev->capabilities & PNP_DISABLE);
-		dev->capabilities &= ~PNP_DISABLE;
+		dev->capabilities &= ~(PNP_DISABLE | PNP_SUSPEND);
 	}
 
 	pnp_set_drvdata(dev, info);
@@ -502,6 +502,7 @@ static void serial_pnp_remove(struct pnp_dev *dev)
 		serial8250_unregister_port(info->line);
 		if (info->override_disable)
 			dev->capabilities |= PNP_DISABLE;
+		dev->capabilities |= PNP_SUSPEND;
 	}
 }
 
-- 
2.1.3


  parent reply	other threads:[~2014-11-05 19:02 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-11-05 18:40 [PATCH 0/4] fix serial console suspend on PNP Peter Hurley
2014-11-05 18:40 ` [PATCH 1/4] serial: core: Simplify console suspend logic in uart_suspend_port() Peter Hurley
2014-11-05 18:40 ` [PATCH 2/4] serial: 8250_pnp: Override pnp disable for no_console_suspend Peter Hurley
2014-11-05 18:40 ` [PATCH 3/4] PNP: Allow device to override ACPI device sleep Peter Hurley
2014-11-05 22:28   ` Rafael J. Wysocki
2014-11-05 22:14     ` Peter Hurley
2014-11-05 18:40 ` [PATCH 4/4] serial: 8250_pnp: Override pnp suspend for no_console_suspend Peter Hurley
2014-11-05 18:45   ` Peter Hurley
2014-11-05 19:02   ` Peter Hurley [this message]
2014-11-06 19:06 ` [PATCH 0/4] fix serial console suspend on PNP Greg Kroah-Hartman

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