[PATCH] rtc: pcf8563: add SMBus support

[Michael Walle <mwalle@kernel.org>]

Since commit 00f1bb9b8486 ("rtc: pcf8563: Switch to regmap") the driver
uses regmap to access the RTC. Regmap itself will figure out if there is
a suitable I2C or SMBus host controllers. Thus, don't restict the driver
to just I2C controllers and make it work on SMBus controllers supporting
i2c block accesses.

This was tested on a custom x86 board.

Signed-off-by: Michael Walle <mwalle@kernel.org>
---
 drivers/rtc/rtc-pcf8563.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/rtc/rtc-pcf8563.c b/drivers/rtc/rtc-pcf8563.c
index 7eebdb058067..eee9bc752b52 100644
--- a/drivers/rtc/rtc-pcf8563.c
+++ b/drivers/rtc/rtc-pcf8563.c
@@ -479,9 +479,6 @@ static int pcf8563_probe(struct i2c_client *client)
 
 	dev_dbg(&client->dev, "%s\n", __func__);
 
-	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C))
-		return -ENODEV;
-
 	pcf8563 = devm_kzalloc(&client->dev, sizeof(struct pcf8563),
 				GFP_KERNEL);
 	if (!pcf8563)
-- 
2.47.3