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Commit bba00e59 authored by Johan Hovold's avatar Johan Hovold Committed by Linus Torvalds
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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: default avatarJohan Hovold <jhovold@gmail.com>
Acked-by: default avatarNicolas 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: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent e9f08bbe

Documentation/devicetree/bindings/rtc/atmel,at91rm9200-rtc.txt

+1 −1
Original line number Diff line number Diff line 
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

drivers/rtc/rtc-at91rm9200.c

+7 −0
Original line number Diff line number Diff line
@@ -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 */

	}