Hi Dmitry,

On 7 September 2011 23:52, Dmitry Torokhov [off-list ref] wrote:

Hi Thomas,

On Tue, Sep 06, 2011 at 07:25:16PM +0530, Thomas Abraham wrote:

quoted

Samsung keyboard driver could be used with platforms using device tree.
So the inclusion of samsung keyboard driver cannot be based on
SAMSUNG_DEV_KEYPAD. A new config option HAVE_SAMSUNG_KEYPAD is added
which device tree based platforms should use to include samsung keyboard
driver.

I am sorry, I do not follow... What is the difference between
SAMSUNG_DEV_KEYPAD and HAVE_SAMSUNG_KEYPAD? They look exactly the same.

The inclusion of platform device instance for keypad (in
arch/arm/plat-samsung/dev-keypad.c) in the build depends on
SAMSUNG_DEV_KEYPAD. The samsung-keypad driver is also dependent on
SAMSUNG_DEV_KEYPAD.

In case of device tree based instantiation of keypad, compilation of
dev-keypad.c file is not required. So SAMSUNG_DEV_KEYPAD config option
will not be selected.In that case, the compilation of the keypad
driver cannot be dependent on SAMSUNG_DEV_KEYPAD. There should be
another option to select the keypad driver and so HAVE_SAMSUNG_KEYPAD
was introduced. HAVE_SAMSUNG_KEYPAD can be selected on platforms that
need the samsung-keypad driver but do no need the keypad platform
device.

Thanks for your review and comments.

Regards,
Thomas.

Thanks,

quoted

Signed-off-by: Thomas Abraham <redacted>
---
 drivers/input/keyboard/Kconfig |    9 ++++++++-
 1 files changed, 8 insertions(+), 1 deletions(-)

diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index b4dee9d..370fb18 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig

@@ -423,9 +423,16 @@ config KEYBOARD_PMIC8XXX

        To compile this driver as a module, choose M here: the module will
        be called pmic8xxx-keypad.

+config HAVE_SAMSUNG_KEYPAD
+     bool
+     help
+       This will include Samsung Keypad controller driver support. If you
+       want to include Samsung Keypad support for any machine, kindly
+       select this in the respective mach-xxxx/Kconfig file.
+
 config KEYBOARD_SAMSUNG
      tristate "Samsung keypad support"
-     depends on SAMSUNG_DEV_KEYPAD
+     depends on SAMSUNG_DEV_KEYPAD || HAVE_SAMSUNG_KEYPAD
      help
        Say Y here if you want to use the Samsung keypad.

--
1.6.6.rc2

--
Dmitry