linux-kernel - [PATCH] mfd: cros_ec_spi: set wakeup capability

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Message-Id: <1402953143-24681-1-git-send-email-dianders@chromium.org>
Date:	Mon, 16 Jun 2014 14:12:23 -0700
From:	Doug Anderson <dianders@...omium.org>
To:	Lee Jones <lee.jones@...aro.org>
Cc:	broonie@...nel.org, Andrew Bresticker <abrestic@...omium.org>,
	swarren@...dotorg.org, olof@...om.net,
	Sonny Rao <sonnyrao@...omium.org>,
	linux-samsung-soc@...r.kernel.org,
	Prathyush K <prathyush.k@...sung.com>,
	Doug Anderson <dianders@...omium.org>, sameo@...ux.intel.com,
	linux-kernel@...r.kernel.org
Subject: [PATCH] mfd: cros_ec_spi: set wakeup capability

From: Prathyush K <prathyush.k@...sung.com>

Set the device as wakeup capable and register the wakeup source.

Note: Though it makes more sense to have the SPI framework do this,
(either via device tree or by board_info)
this change is as per an existing mail chain:
https://lkml.org/lkml/2009/8/27/291

Signed-off-by: Prathyush K <prathyush.k@...sung.com>
Signed-off-by: Doug Anderson <dianders@...omium.org>
---
Note that I don't have suspend/resume actually working upstream, but I
see that /sys/bus/spi/drivers/cros-ec-spi/spi2.0/power/wakeup exists
with this patch and doesn't exist without it.

 drivers/mfd/cros_ec_spi.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/mfd/cros_ec_spi.c b/drivers/mfd/cros_ec_spi.c
index 0b8d328..ef22dd5 100644
--- a/drivers/mfd/cros_ec_spi.c
+++ b/drivers/mfd/cros_ec_spi.c
@@ -385,6 +385,8 @@ static int cros_ec_spi_probe(struct spi_device *spi)
 		return err;
 	}
 
+	device_init_wakeup(&spi->dev, true);
+
 	return 0;
 }
 
-- 
2.0.0.526.g5318336

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