Commit 80663607 authored Apr 22, 2017 by David Lowe Committed by Alexandre Belloni May 31, 2017

rtc: rtc-ds1307: enable support for mcp794xx as a wakeup source without IRQ



This patch extends the fixes for ds1337, ds1339, ds3231 in commit
8bc2a407 ("rtc: ds1307: add support for the DT property
'wakeup-source'") to mcp794xx devices, so that those parts can similarly be
used as a wakeup source without an IRQ to the processor.

Tested on Raspberry Pi ZeroW with MCP79400.

Signed-off-by: David Lowe <dave-lowe@ntlworld.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>

parent 11e5890b

drivers/rtc/rtc-ds1307.c

+2 −1

Original line number	Original line	Diff line number	Diff line
	@@ -1407,7 +1407,8 @@ static int ds1307_probe(struct i2c_client *client,
	break;		break;
	case mcp794xx:		case mcp794xx:
	rtc_ops = &mcp794xx_rtc_ops;		rtc_ops = &mcp794xx_rtc_ops;
	if (ds1307->irq > 0 && chip->alarm) {		if (chip->alarm && (ds1307->irq > 0 \|\|
			ds1307_can_wakeup_device)) {
	irq_handler = mcp794xx_irq;		irq_handler = mcp794xx_irq;
	want_irq = true;		want_irq = true;
	}		}