The dma_request_channel/dma_release_channel interfaces are not
built when DMADEVICES is not enabled, so make the driver depend on
DMADEVICES. Also, the help text says that the driver enables & uses
PCH_DMA, which is not enabled, so select that.
ERROR: "__dma_request_channel" [drivers/serial/pch_uart.ko] undefined!
ERROR: "dma_release_channel" [drivers/serial/pch_uart.ko] undefined!
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com>
Reported-by: Zimny Lech <napohybelskurwysynom2010@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
config SERIAL_PCH_UART
tristate "Intel EG20T PCH UART"
+ depends on PCI && DMADEVICES
select SERIAL_CORE
- depends on PCI
+ select PCH_DMA
help
This driver is for PCH(Platform controller Hub) UART of Intel EG20T
which is an IOH(Input/Output Hub) for x86 embedded processor.