Input: synaptics-rmi4 - add support for F30

RMI4 F30 supports input from clickpad buttons and controls LEDs located
on the touchpad PCB. This patch adds support of the clickpad buttons and
defers supporting LEDs for the future.

Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/input/rmi4/Kconfig b/drivers/input/rmi4/Kconfig
index aabb8542a55d..284faec30a7a 100644
--- a/drivers/input/rmi4/Kconfig
+++ b/drivers/input/rmi4/Kconfig
@@ -43,3 +43,12 @@ config RMI4_F12
           Function 12 provides 2D multifinger pointing for touchscreens and
           touchpads. For sensors that support relative pointing, F12 also
           provides mouse input.
+
+config RMI4_F30
+        bool "RMI4 Function 30 (GPIO LED)"
+        depends on RMI4_CORE
+        help
+          Say Y here if you want to add support for RMI4 function 30.
+
+          Function 30 provides GPIO and LED support for RMI4 devices. This
+          includes support for buttons on TouchPads and ClickPads.