提交 bba00e59 编写于 作者: J Johan Hovold 提交者: Linus Torvalds

rtc-at91rm9200: use shadow IMR on at91sam9x5

Add support for the at91sam9x5-family which must use the shadow
interrupt mask due to a hardware issue (causing RTC_IMR to always be
zero).
Signed-off-by: NJohan Hovold <jhovold@gmail.com>
Acked-by: NNicolas Ferre <nicolas.ferre@atmel.com>
Cc: Douglas Gilbert <dgilbert@interlog.com>
Cc: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Ludovic Desroches <ludovic.desroches@atmel.com>
Cc: Robert Nelson <Robert.Nelson@digikey.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
上级 e9f08bbe
Atmel AT91RM9200 Real Time Clock
Required properties:
- compatible: should be: "atmel,at91rm9200-rtc"
- compatible: should be: "atmel,at91rm9200-rtc" or "atmel,at91sam9x5-rtc"
- reg: physical base address of the controller and length of memory mapped
region.
- interrupts: rtc alarm/event interrupt
......
......@@ -309,11 +309,18 @@ static irqreturn_t at91_rtc_interrupt(int irq, void *dev_id)
static const struct at91_rtc_config at91rm9200_config = {
};
static const struct at91_rtc_config at91sam9x5_config = {
.use_shadow_imr = true,
};
#ifdef CONFIG_OF
static const struct of_device_id at91_rtc_dt_ids[] = {
{
.compatible = "atmel,at91rm9200-rtc",
.data = &at91rm9200_config,
}, {
.compatible = "atmel,at91sam9x5-rtc",
.data = &at91sam9x5_config,
}, {
/* sentinel */
}
......
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