From 998a8e7a72f6a81f540d3a3774d8e8aae6c7f9f2 Mon Sep 17 00:00:00 2001 From: "Kim, Milo" Date: Thu, 17 Nov 2011 21:43:06 -0800 Subject: lp8727_charger: Add supported i2c functionality check routine lp8727 i2c r/w functions are based on SMBUS I2C BLOCK. So the driver needs to check whether i2c bus supports this functionality or not. Signed-off-by: Woogyom Kim Signed-off-by: Anton Vorontsov --- drivers/power/lp8727_charger.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/power') diff --git a/drivers/power/lp8727_charger.c b/drivers/power/lp8727_charger.c index 2a649e07ddde..a7e5cc2b4d74 100644 --- a/drivers/power/lp8727_charger.c +++ b/drivers/power/lp8727_charger.c @@ -425,6 +425,9 @@ static int lp8727_probe(struct i2c_client *cl, const struct i2c_device_id *id) struct lp8727_chg *pchg; int ret; + if (!i2c_check_functionality(cl->adapter, I2C_FUNC_SMBUS_I2C_BLOCK)) + return -EIO; + pchg = kzalloc(sizeof(*pchg), GFP_KERNEL); if (!pchg) return -ENOMEM; -- cgit v1.2.3