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ARM: config: Switch PXA27x platforms to use PXA RTC driver

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With the SA1100 and PXA RTC drivers be mutually exclusive and no
longer sharing hardware, PXA27x/PXA3xx platforms must use the PXA RTC
driver as the SA1100 platform device is no longer registered.

This change should be almost transparent to userspace. Former users of
pxa-rtc should be aware that 2 RTCs will be available on their kernels,
rtc0 being sa1100-rtc and rtc1 being pxa-rtc. Any userspace relying on
the fact that rtc0 was pxa-rtc should be fixed.

As a consequence:
 - the first reboot after the switch will have the wrong time,
 - on dual boot platform where the other OS programs some logic into the
   sa1100 rtc IP, a lack of fix in userspace, ie. a kernel changing
   sa1100-rtc thinking it is pxa-rtc could have dire consequence, such
   as wiping the other OS data partition.

(Thanks to Robert Jarmik for help on the above commit text.)

Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: Daniel Mack <daniel@zonque.org>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: Sergey Lapin <slapin@ossfans.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Mike Rapoport <mike@compulab.co.il>
Cc: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
This commit is contained in:
Rob Herring 2015-06-01 07:53:01 -05:00 committed by Alexandre Belloni
parent 7b758ef444
commit e66ce07a96
6 changed files with 6 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
arch/arm/configs/cm_x2xx_defconfig
View file

@ -157,7 +157,7 @@ CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_HEARTBEAT=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_V3020=y
CONFIG_RTC_DRV_SA1100=y
CONFIG_RTC_DRV_PXA=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
CONFIG_INOTIFY=y

2
arch/arm/configs/em_x270_defconfig
View file

@ -157,7 +157,7 @@ CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_HEARTBEAT=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_V3020=y
CONFIG_RTC_DRV_SA1100=y
CONFIG_RTC_DRV_PXA=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
CONFIG_INOTIFY=y

2
arch/arm/configs/magician_defconfig
View file

@ -150,7 +150,7 @@ CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_BACKLIGHT=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_DEBUG=y
CONFIG_RTC_DRV_SA1100=y
CONFIG_RTC_DRV_PXA=y
CONFIG_EXT2_FS=y
CONFIG_INOTIFY=y
CONFIG_MSDOS_FS=m

2
arch/arm/configs/palmz72_defconfig
View file

@ -67,7 +67,7 @@ CONFIG_MMC=y
CONFIG_MMC_DEBUG=y
CONFIG_MMC_PXA=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_SA1100=y
CONFIG_RTC_DRV_PXA=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
# CONFIG_DNOTIFY is not set

2
arch/arm/configs/pcm027_defconfig
View file

@ -82,7 +82,7 @@ CONFIG_MMC=y
CONFIG_MMC_PXA=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_PCF8563=m
CONFIG_RTC_DRV_SA1100=m
CONFIG_RTC_DRV_PXA=m
CONFIG_EXT2_FS=m
CONFIG_EXT3_FS=m
# CONFIG_DNOTIFY is not set

2
arch/arm/configs/trizeps4_defconfig
View file

@ -177,7 +177,7 @@ CONFIG_NEW_LEDS=y
CONFIG_RTC_CLASS=y
# CONFIG_RTC_HCTOSYS is not set
CONFIG_RTC_DRV_PCF8583=m
CONFIG_RTC_DRV_SA1100=y
CONFIG_RTC_DRV_PXA=y
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y