From: Bjorn Helgaas <bjorn.helgaas@hp.com>
Date: Wed, 15 Oct 2008 15:50:48 +0000 (+0100)
Subject: frv: use generic pci_enable_resources()
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=9bd8f9c638c51313328d664a2f7a5e413cfd9044;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git

frv: use generic pci_enable_resources()

Use the generic pci_enable_resources() instead of the arch-specific code.

Unlike this arch-specific code, the generic version:
    - checks PCI_NUM_RESOURCES (11), not 6, resources
    - skips resources that have neither IORESOURCE_IO nor IORESOURCE_MEM set
    - skips ROM resources unless IORESOURCE_ROM_ENABLE is set
    - checks for resource collisions with "!r->parent"

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/arch/frv/mb93090-mb00/pci-frv.c b/arch/frv/mb93090-mb00/pci-frv.c
index edae117fcc2..43d67534c71 100644
--- a/arch/frv/mb93090-mb00/pci-frv.c
+++ b/arch/frv/mb93090-mb00/pci-frv.c
@@ -201,38 +201,6 @@ void __init pcibios_resource_survey(void)
 	pcibios_assign_resources();
 }
 
-int pcibios_enable_resources(struct pci_dev *dev, int mask)
-{
-	u16 cmd, old_cmd;
-	int idx;
-	struct resource *r;
-
-	pci_read_config_word(dev, PCI_COMMAND, &cmd);
-	old_cmd = cmd;
-	for(idx=0; idx<6; idx++) {
-		/* Only set up the requested stuff */
-		if (!(mask & (1<<idx)))
-			continue;
-
-		r = &dev->resource[idx];
-		if (!r->start && r->end) {
-			printk(KERN_ERR "PCI: Device %s not available because of resource collisions\n", pci_name(dev));
-			return -EINVAL;
-		}
-		if (r->flags & IORESOURCE_IO)
-			cmd |= PCI_COMMAND_IO;
-		if (r->flags & IORESOURCE_MEM)
-			cmd |= PCI_COMMAND_MEMORY;
-	}
-	if (dev->resource[PCI_ROM_RESOURCE].start)
-		cmd |= PCI_COMMAND_MEMORY;
-	if (cmd != old_cmd) {
-		printk("PCI: Enabling device %s (%04x -> %04x)\n", pci_name(dev), old_cmd, cmd);
-		pci_write_config_word(dev, PCI_COMMAND, cmd);
-	}
-	return 0;
-}
-
 /*
  *  If we set up a device for bus mastering, we need to check the latency
  *  timer as certain crappy BIOSes forget to set it properly.
diff --git a/arch/frv/mb93090-mb00/pci-frv.h b/arch/frv/mb93090-mb00/pci-frv.h
index 0c7bf39dc72..f3fe5591479 100644
--- a/arch/frv/mb93090-mb00/pci-frv.h
+++ b/arch/frv/mb93090-mb00/pci-frv.h
@@ -29,7 +29,6 @@ extern unsigned int __nongpreldata pci_probe;
 extern unsigned int pcibios_max_latency;
 
 void pcibios_resource_survey(void);
-int pcibios_enable_resources(struct pci_dev *, int);
 
 /* pci-vdk.c */
 
diff --git a/arch/frv/mb93090-mb00/pci-vdk.c b/arch/frv/mb93090-mb00/pci-vdk.c
index f003cfa68b7..0f41c3a72da 100644
--- a/arch/frv/mb93090-mb00/pci-vdk.c
+++ b/arch/frv/mb93090-mb00/pci-vdk.c
@@ -412,7 +412,7 @@ int pcibios_enable_device(struct pci_dev *dev, int mask)
 {
 	int err;
 
-	if ((err = pcibios_enable_resources(dev, mask)) < 0)
+	if ((err = pci_enable_resources(dev, mask)) < 0)
 		return err;
 	if (!dev->msi_enabled)
 		pcibios_enable_irq(dev);