i2c: Deprecate legacy RTC drivers

We have a new RTC subsystem with better drivers.

Legacy driver status:
* ds1337: The DS1337 and DS1339 are now supported by the rtc-ds1307
  driver, so it looks to me like we could even delete the ds1337
  driver right away.
* ds1374: Will soon be replaced with Scott Wood's rtc-ds1374 driver.
* m41t00: The M41T00 is supported by the rtc-ds1307 driver. For the
  M41T81 and M41T85, the rtc-m41t80 driver written by Atsushi Nemoto
  should work.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Acked-by: Mark A. Greer <mgreer@mvista.com>
Acked-by: James Chapman <jchapman@katalix.com>
Cc: Randy Vinson <rvinson@mvista.com>

2 files changed, 19 insertions, 3 deletions

diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index 3a159dac04f5..281458b47d75 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -330,3 +330,10 @@ Who:  Tejun Heo <htejun@gmail.com>
 
 ---------------------------
 
+What:   Legacy RTC drivers (under drivers/i2c/chips)
+When:   November 2007
+Why:    Obsolete. We have a RTC subsystem with better drivers.
+Who:    Jean Delvare <khali@linux-fr.org>
+
+---------------------------
+
diff --git a/drivers/i2c/chips/Kconfig b/drivers/i2c/chips/Kconfig
index ea085a006ead..8113ce201e47 100644
--- a/drivers/i2c/chips/Kconfig
+++ b/drivers/i2c/chips/Kconfig
@@ -5,7 +5,7 @@
 menu "Miscellaneous I2C Chip support"
 
 config SENSORS_DS1337
-        tristate "Dallas Semiconductor DS1337 and DS1339 Real Time Clock"
+        tristate "Dallas DS1337 and DS1339 Real Time Clock (DEPRECATED)"
         depends on EXPERIMENTAL
         help
           If you say yes here you get support for Dallas Semiconductor
@@ -14,8 +14,11 @@ config SENSORS_DS1337
           This driver can also be built as a module.  If so, the module
           will be called ds1337.
 
+          This driver is deprecated and will be dropped soon. Use
+          rtc-ds1307 instead.
+
 config SENSORS_DS1374
-        tristate "Maxim/Dallas Semiconductor DS1374 Real Time Clock"
+        tristate "Dallas DS1374 Real Time Clock (DEPRECATED)"
         depends on EXPERIMENTAL
         help
           If you say yes here you get support for Dallas Semiconductor
@@ -24,6 +27,9 @@ config SENSORS_DS1374
           This driver can also be built as a module.  If so, the module
           will be called ds1374.
 
+          This driver is deprecated and will be dropped soon. Use
+          rtc-ds1374 instead.
+
 config SENSORS_EEPROM
         tristate "EEPROM reader"
         depends on EXPERIMENTAL
@@ -101,7 +107,7 @@ config TPS65010
           will be called tps65010.
 
 config SENSORS_M41T00
-        tristate "ST M41T00 RTC chip"
+        tristate "ST M41T00 RTC chip (DEPRECATED)"
         depends on PPC32
         help
           If you say yes here you get support for the ST M41T00 RTC chip.
@@ -109,6 +115,9 @@ config SENSORS_M41T00
           This driver can also be built as a module.  If so, the module
           will be called m41t00.
 
+          This driver is deprecated and will be dropped soon. Use
+          rtc-ds1307 or rtc-m41t80 instead.
+
 config SENSORS_MAX6875
         tristate "Maxim MAX6875 Power supply supervisor"
         depends on EXPERIMENTAL