From 8066360744743fb7f2dee1e2041fc9fc92f9d6b5 Mon Sep 17 00:00:00 2001 From: David Lowe Date: Sat, 22 Apr 2017 18:28:00 +0100 Subject: [PATCH] rtc: rtc-ds1307: enable support for mcp794xx as a wakeup source without IRQ This patch extends the fixes for ds1337, ds1339, ds3231 in commit 8bc2a40730ec ("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 Signed-off-by: Alexandre Belloni --- drivers/rtc/rtc-ds1307.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c index 94e13d703735..a264938500af 100644 --- a/drivers/rtc/rtc-ds1307.c +++ b/drivers/rtc/rtc-ds1307.c @@ -1407,7 +1407,8 @@ static int ds1307_probe(struct i2c_client *client, break; case mcp794xx: 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; want_irq = true; } -- 2.20.1