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MIPS: ath79: fix a wrong IRQ number 

The Ubiquiti XM board setup code uses an invalid
IRQ number, because it if above of NR_IRQS. This
leads to failed 'request_irq' calls:

  ath9k 0000:00:00.0: request_irq failed
  ath9k: probe of 0000:00:00.0 failed with error -22

Preserve some IRQ numbers for the built-in IRQ
controller of PCI host controllers in the
AR71XX/AR724X SoCs, and use the correct IRQ
number in the board setup code.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3495/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Gabor Juhos 2012-03-14 10:36:06 +01:00 committed by Ralf Baechle
parent 6015a856f1
commit 93ef85b559
2 changed files with 8 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
arch/mips/ath79/mach-ubnt-xm.c
View File

@ -17,6 +17,8 @@
#include <linux/ath9k_platform.h>
#endif /* CONFIG_PCI */
#include <asm/mach-ath79/irq.h>
#include "machtypes.h"
#include "dev-gpio-buttons.h"
#include "dev-leds-gpio.h"
@ -33,7 +35,6 @@
#define UBNT_XM_KEYS_POLL_INTERVAL 20
#define UBNT_XM_KEYS_DEBOUNCE_INTERVAL (3 * UBNT_XM_KEYS_POLL_INTERVAL)
#define UBNT_XM_PCI_IRQ 48
#define UBNT_XM_EEPROM_ADDR (u8 *) KSEG1ADDR(0x1fff1000)
static struct gpio_led ubnt_xm_leds_gpio[] __initdata = {
@ -86,7 +87,7 @@ static struct ath9k_platform_data ubnt_xm_eeprom_data;
static struct ar724x_pci_data ubnt_xm_pci_data[] = {
{
.irq = UBNT_XM_PCI_IRQ,
.irq = ATH79_PCI_IRQ(0),
.pdata = &ubnt_xm_eeprom_data,
},
};

6
arch/mips/include/asm/mach-ath79/irq.h
View File

@ -10,11 +10,15 @@
#define __ASM_MACH_ATH79_IRQ_H
#define MIPS_CPU_IRQ_BASE 0
#define NR_IRQS 40
#define NR_IRQS 46
#define ATH79_MISC_IRQ_BASE 8
#define ATH79_MISC_IRQ_COUNT 32
#define ATH79_PCI_IRQ_BASE (ATH79_MISC_IRQ_BASE + ATH79_MISC_IRQ_COUNT)
#define ATH79_PCI_IRQ_COUNT 6
#define ATH79_PCI_IRQ(_x) (ATH79_PCI_IRQ_BASE + (_x))
#define ATH79_CPU_IRQ_IP2 (MIPS_CPU_IRQ_BASE + 2)
#define ATH79_CPU_IRQ_USB (MIPS_CPU_IRQ_BASE + 3)
#define ATH79_CPU_IRQ_GE0 (MIPS_CPU_IRQ_BASE + 4)