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rtc/alpha: remove legacy rtc driver

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The old drivers/char/rtc.c driver was originally the implementation
for x86 PCs but got subsequently replaced by the rtc class driver
on all architectures except alpha.

Move alpha over to the portable driver and remove the old one
for good.

The CONFIG_JS_RTC option was only ever used on SPARC32 but
has not been available for many years, this was used to build
the same rtc driver with a different module name.

Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: linux-alpha@vger.kernel.org
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20200226224322.187960-2-alexandre.belloni@bootlin.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Arnd Bergmann 2020-02-26 23:43:22 +01:00 committed by Greg Kroah-Hartman
parent 8067c0b0c6
commit f52ef24be2
4 changed files with 2 additions and 1372 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
arch/alpha/configs/defconfig
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@ -53,7 +53,8 @@ CONFIG_NET_PCI=y
CONFIG_YELLOWFIN=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_RTC=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_CMOS=y
CONFIG_EXT2_FS=y
CONFIG_REISERFS_FS=m
CONFIG_ISO9660_FS=y

56
drivers/char/Kconfig
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@ -196,62 +196,6 @@ config NWFLASH
source "drivers/char/hw_random/Kconfig"
#
# These legacy RTC drivers just cause too many conflicts with the generic
# RTC framework ... let's not even try to coexist any more.
#
if RTC_LIB=n
config RTC
tristate "Enhanced Real Time Clock Support (legacy PC RTC driver)"
depends on ALPHA
---help---
If you say Y here and create a character special file /dev/rtc with
major number 10 and minor number 135 using mknod ("man mknod"), you
will get access to the real time clock (or hardware clock) built
into your computer.
Every PC has such a clock built in. It can be used to generate
signals from as low as 1Hz up to 8192Hz, and can also be used
as a 24 hour alarm. It reports status information via the file
/proc/driver/rtc and its behaviour is set by various ioctls on
/dev/rtc.
If you run Linux on a multiprocessor machine and said Y to
"Symmetric Multi Processing" above, you should say Y here to read
and set the RTC in an SMP compatible fashion.
If you think you have a use for such a device (such as periodic data
sampling), then say Y here, and read <file:Documentation/admin-guide/rtc.rst>
for details.
To compile this driver as a module, choose M here: the
module will be called rtc.
config JS_RTC
tristate "Enhanced Real Time Clock Support"
depends on SPARC32 && PCI
---help---
If you say Y here and create a character special file /dev/rtc with
major number 10 and minor number 135 using mknod ("man mknod"), you
will get access to the real time clock (or hardware clock) built
into your computer.
Every PC has such a clock built in. It can be used to generate
signals from as low as 1Hz up to 8192Hz, and can also be used
as a 24 hour alarm. It reports status information via the file
/proc/driver/rtc and its behaviour is set by various ioctls on
/dev/rtc.
If you think you have a use for such a device (such as periodic data
sampling), then say Y here, and read <file:Documentation/admin-guide/rtc.rst>
for details.
To compile this driver as a module, choose M here: the
module will be called js-rtc.
endif # RTC_LIB
config DTLK
tristate "Double Talk PC internal speech card support"
depends on ISA

4
drivers/char/Makefile
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@ -20,7 +20,6 @@ obj-$(CONFIG_APM_EMULATION) += apm-emulation.o
obj-$(CONFIG_DTLK) += dtlk.o
obj-$(CONFIG_APPLICOM) += applicom.o
obj-$(CONFIG_SONYPI) += sonypi.o
obj-$(CONFIG_RTC) += rtc.o
obj-$(CONFIG_HPET) += hpet.o
obj-$(CONFIG_XILINX_HWICAP) += xilinx_hwicap/
obj-$(CONFIG_NVRAM) += nvram.o
@ -45,9 +44,6 @@ obj-$(CONFIG_TCG_TPM) += tpm/
obj-$(CONFIG_PS3_FLASH) += ps3flash.o
obj-$(CONFIG_JS_RTC) += js-rtc.o
js-rtc-y = rtc.o
obj-$(CONFIG_XILLYBUS) += xillybus/
obj-$(CONFIG_POWERNV_OP_PANEL) += powernv-op-panel.o
obj-$(CONFIG_ADI) += adi.o

1311
drivers/char/rtc.c
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