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MIPS: ath79: add a common PCI registration function

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The current code unconditionally registers the AR724X
specific PCI controller, even if the kernel is running
on a different SoC.

Add a common function for PCI controller registration,
and only register the AR724X PCI controller if the kernel
is running on an AR724X SoC.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3488/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Gabor Juhos 2012-03-14 10:29:24 +01:00 committed by Ralf Baechle
parent 659243ccaf
commit 6335aef59c
4 changed files with 17 additions and 2 deletions
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1
arch/mips/ath79/mach-ubnt-xm.c
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@ -111,6 +111,7 @@ static void __init ubnt_xm_init(void)
ath724x_pci_add_data(ubnt_xm_pci_data, ARRAY_SIZE(ubnt_xm_pci_data));
#endif /* CONFIG_PCI */
ath79_register_pci();
}
MIPS_MACHINE(ATH79_MACH_UBNT_XM,

10
arch/mips/ath79/pci.c
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@ -9,6 +9,8 @@
*/
#include <linux/pci.h>
#include <asm/mach-ath79/ath79.h>
#include <asm/mach-ath79/pci.h>
#include "pci.h"
static struct ath724x_pci_data *pci_data;
@ -44,3 +46,11 @@ int pcibios_plat_dev_init(struct pci_dev *dev)
return PCIBIOS_SUCCESSFUL;
}
int __init ath79_register_pci(void)
{
if (soc_is_ar724x())
return ath724x_pcibios_init();
return -ENODEV;
}

6
arch/mips/ath79/pci.h
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@ -18,4 +18,10 @@ struct ath724x_pci_data {
void ath724x_pci_add_data(struct ath724x_pci_data *data, int size);
#ifdef CONFIG_PCI
int ath79_register_pci(void);
#else
static inline int ath79_register_pci(void) { return 0; }
#endif
#endif /* __ASM_MACH_ATH79_PCI_ATH724X_H */

2
arch/mips/pci/pci-ath724x.c
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@ -137,5 +137,3 @@ int __init ath724x_pcibios_init(void)
return PCIBIOS_SUCCESSFUL;
}
arch_initcall(ath724x_pcibios_init);