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Subject[PATCH] ptp: clockmatrix: add I2C dependency
Date
Without I2C, we get a link failure:

drivers/ptp/ptp_clockmatrix.o: In function `idtcm_xfer.isra.3':
ptp_clockmatrix.c:(.text+0xcc): undefined reference to `i2c_transfer'
drivers/ptp/ptp_clockmatrix.o: In function `idtcm_driver_init':
ptp_clockmatrix.c:(.init.text+0x14): undefined reference to `i2c_register_driver'
drivers/ptp/ptp_clockmatrix.o: In function `idtcm_driver_exit':
ptp_clockmatrix.c:(.exit.text+0x10): undefined reference to `i2c_del_driver'

Fixes: 3a6ba7dc7799 ("ptp: Add a ptp clock driver for IDT ClockMatrix.")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
drivers/ptp/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/ptp/Kconfig b/drivers/ptp/Kconfig
index dc3d8ecb4231..e37797c0a85c 100644
--- a/drivers/ptp/Kconfig
+++ b/drivers/ptp/Kconfig
@@ -107,7 +107,7 @@ config PTP_1588_CLOCK_KVM

config PTP_1588_CLOCK_IDTCM
tristate "IDT CLOCKMATRIX as PTP clock"
- depends on PTP_1588_CLOCK
+ depends on PTP_1588_CLOCK && I2C
default n
help
This driver adds support for using IDT CLOCKMATRIX(TM) as a PTP
--
2.20.0
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