1 files changed, 20 insertions, 7 deletions

diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index ff01c389e2da..65dd599a0262 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -294,18 +294,21 @@ comment "I2C system bus drivers (mostly embedded / system-on-chip)"
 
 config I2C_AT91
         tristate "Atmel AT91 I2C Two-Wire interface (TWI)"
-        depends on ARCH_AT91 && EXPERIMENTAL && BROKEN
+        depends on ARCH_AT91 && EXPERIMENTAL
         help
           This supports the use of the I2C interface on Atmel AT91
           processors.
 
-          This driver is BROKEN because the controller which it uses
-          will easily trigger RX overrun and TX underrun errors.  Using
-          low I2C clock rates may partially work around those issues
-          on some systems.  Another serious problem is that there is no
-          documented way to issue repeated START conditions, as needed
+          A serious problem is that there is no documented way to issue
+          repeated START conditions for more than two messages, as needed
           to support combined I2C messages.  Use the i2c-gpio driver
-          unless your system can cope with those limitations.
+          unless your system can cope with this limitation.
+
+          Caution! at91rm9200, at91sam9261, at91sam9260, at91sam9263 devices
+          don't have clock stretching in transmission mode. For that reason,
+          you can encounter underrun issues causing premature stop sendings if
+          the latency to fill the transmission register is too long. If you
+          are facing this situation, use the i2c-gpio driver.
 
 config I2C_AU1550
         tristate "Au1550/Au1200/Au1300 SMBus interface"
@@ -718,6 +721,16 @@ config I2C_XLR
           This driver can also be built as a module.  If so, the module
           will be called i2c-xlr.
 
+config I2C_RCAR
+        tristate "Renesas R-Car I2C Controller"
+        depends on ARCH_SHMOBILE && I2C
+        help
+          If you say yes to this option, support will be included for the
+          R-Car I2C controller.
+
+          This driver can also be built as a module.  If so, the module
+          will be called i2c-rcar.
+
 comment "External I2C/SMBus adapter drivers"
 
 config I2C_DIOLAN_U2C