linux-kernel - [Resend][PATCH] pciehp: always implement resume

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Date:	Fri, 7 Sep 2012 23:28:30 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Bjorn Helgaas <bhelgaas@...gle.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Linux PM list <linux-pm@...r.kernel.org>,
	"Greg Kroah-Hartman" <gregkh@...uxfoundation.org>,
	Oliver Neukum <oliver@...kum.org>, linux-pci@...r.kernel.org
Subject: [Resend][PATCH] pciehp: always implement resume

From: Oliver Neukum <oliver@...kum.org>
Subject: pciehp: always implement resume

The driver by default ignores resume. On some laptops
that means that interrupts are not delivered after S3.
So card removals and insertions will not be handled. Requiring
a forced load isn't right.

Signed-off-by: Oliver Neukum <oneukum@...e.de>
Signed-off-by: Rafael J. Wysocki <rjw@...k.pl>
---
drivers/pci/hotplug/pciehp_core.c |   28 ++++++++++++++--------------
 drivers/pci/hotplug/pciehp_core.c |   28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

Index: linux/drivers/pci/hotplug/pciehp_core.c
===================================================================
--- linux.orig/drivers/pci/hotplug/pciehp_core.c
+++ linux/drivers/pci/hotplug/pciehp_core.c
@@ -300,24 +300,24 @@ static int pciehp_suspend (struct pcie_d
 
 static int pciehp_resume (struct pcie_device *dev)
 {
+	struct controller *ctrl;
+	struct slot *slot;
+	u8 status;
+
 	dev_info(&dev->device, "%s ENTRY\n", __func__);
-	if (pciehp_force) {
-		struct controller *ctrl = get_service_data(dev);
-		struct slot *slot;
-		u8 status;
+	ctrl = get_service_data(dev);
 
-		/* reinitialize the chipset's event detection logic */
-		pcie_enable_notification(ctrl);
+	/* reinitialize the chipset's event detection logic */
+	pcie_enable_notification(ctrl);
 
-		slot = ctrl->slot;
+	slot = ctrl->slot;
 
-		/* Check if slot is occupied */
-		pciehp_get_adapter_status(slot, &status);
-		if (status)
-			pciehp_enable_slot(slot);
-		else
-			pciehp_disable_slot(slot);
-	}
+	/* Check if slot is occupied */
+	pciehp_get_adapter_status(slot, &status);
+	if (status)
+		pciehp_enable_slot(slot);
+	else
+		pciehp_disable_slot(slot);
 	return 0;
 }
 #endif /* PM */
--
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