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ARM: at91: fix rtc-at91sam9 irq issue due to sparse irq support

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AT91_ID_SYS as virq is incorrect because of spare irq support which
introduces NR_IRQS_LEGACY offset. It modifies rtc-at91sam9 driver in
order to get irq from resources.

Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
This commit is contained in:
Ludovic Desroches
2012-08-14 11:19:22 +02:00
committed by Nicolas Ferre
parent 85ebea12f5
commit e402af6caa
6 changed files with 43 additions and 13 deletions
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6
arch/arm/mach-at91/at91sam9261_devices.c
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@@ -609,6 +609,8 @@ static struct resource rtt_resources[] = {
.flags = IORESOURCE_MEM,
}, {
.flags = IORESOURCE_MEM,
}, {
.flags = IORESOURCE_IRQ,
}
};
@@ -626,10 +628,12 @@ static void __init at91_add_device_rtt_rtc(void)
* The second resource is needed:
* GPBR will serve as the storage for RTC time offset
*/
at91sam9261_rtt_device.num_resources = 2;
at91sam9261_rtt_device.num_resources = 3;
rtt_resources[1].start = AT91SAM9261_BASE_GPBR +
4 * CONFIG_RTC_DRV_AT91SAM9_GPBR;
rtt_resources[1].end = rtt_resources[1].start + 3;
rtt_resources[2].start = NR_IRQS_LEGACY + AT91_ID_SYS;
rtt_resources[2].end = NR_IRQS_LEGACY + AT91_ID_SYS;
}
#else
static void __init at91_add_device_rtt_rtc(void)