rtc: Add SPI alias for pcf2123 driver

Without this alias, Device Tree won't cause the driver
to be loaded.

See: https://github.com/raspberrypi/linux/pull/1510

diff --git a/drivers/rtc/rtc-pcf2123.c b/drivers/rtc/rtc-pcf2123.c
index e5222c5..f97ee62 100644 (file)
--- a/drivers/rtc/rtc-pcf2123.c
+++ b/drivers/rtc/rtc-pcf2123.c
@@ -472,3 +472,4 @@ module_spi_driver(pcf2123_driver);
 MODULE_AUTHOR("Chris Verges <chrisv@cyberswitching.com>");
 MODULE_DESCRIPTION("NXP PCF2123 RTC driver");
 MODULE_LICENSE("GPL");
+MODULE_ALIAS("spi:rtc-pcf2123");