Blackfin arch: PM_BFIN_WAKE_GP: update help

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>

1 files changed, 6 insertions, 0 deletions

diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index 8f1f97d56e1..be6097163b0 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -1168,6 +1168,12 @@ config PM_BFIN_WAKE_GP
         default n
         help
           Enable General-Purpose Wake-Up (Voltage Regulator Power-Up)
+          (all processors, except ADSP-BF549). This option sets
+          the general-purpose wake-up enable (GPWE) control bit to enable
+          wake-up upon detection of an active low signal on the /GPW (PH7) pin.
+          On ADSP-BF549 this option enables the the same functionality on the
+          /MRXON pin also PH7.
+
 endmenu
 
 menu "CPU Frequency scaling"