rtc: ds1302: rewrite using SPI

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>

1 files changed, 9 insertions, 6 deletions

diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 3e84315c6f12..f1e1f502be5d 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -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