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rtc: ds1302: rewrite using SPI

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DS1302 is an half-duplex SPI device. The driver respects this fact now.
Pin configurations should be implemented using SPI subsystem.

Signed-off-by: Sergei Ianovich <ynvich@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
This commit is contained in:
Sergey Yanovich
2016-02-23 13:54:57 +03:00
committed by Alexandre Belloni
parent 2dcd0af568
commit d25a5ed37d
3 changed files with 212 additions and 197 deletions
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15
drivers/rtc/Kconfig
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@@ -634,6 +634,15 @@ config RTC_DRV_M41T94
This driver can also be built as a module. If so, the module
will be called rtc-m41t94.
config RTC_DRV_DS1302
tristate "Dallas/Maxim DS1302"
depends on SPI
help
If you say yes here you get support for the Dallas DS1302 RTC chips.
This driver can also be built as a module. If so, the module
will be called rtc-ds1302.
config RTC_DRV_DS1305
tristate "Dallas/Maxim DS1305/DS1306"
help
@@ -834,12 +843,6 @@ config RTC_DRV_DS1286
help
If you say yes here you get support for the Dallas DS1286 RTC chips.
config RTC_DRV_DS1302
tristate "Dallas DS1302"
depends on SH_SECUREEDGE5410
help
If you say yes here you get support for the Dallas DS1302 RTC chips.
config RTC_DRV_DS1511
tristate "Dallas DS1511"
depends on HAS_IOMEM