Input: davinci_keyscan - add device_enable method to platform data

Add a function pointer in the platform data of the DaVinci Keyscan driver
called device_enable, in order to perform board specific actions when
the device is initialized, like setup the PINMUX configuration.

Signed-off-by: Miguel Aguilar <miguel.aguilar@ridgerun.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/input/keyboard/davinci_keyscan.c b/drivers/input/keyboard/davinci_keyscan.c
index 6e52d855f637..d410d7a52f1d 100644
--- a/drivers/input/keyboard/davinci_keyscan.c
+++ b/drivers/input/keyboard/davinci_keyscan.c
@@ -174,6 +174,14 @@ static int __init davinci_ks_probe(struct platform_device *pdev)
         struct davinci_ks_platform_data *pdata = pdev->dev.platform_data;
         int error, i;
 
+        if (pdata->device_enable) {
+                error = pdata->device_enable(dev);
+                if (error < 0) {
+                        dev_dbg(dev, "device enable function failed\n");
+                        return error;
+                }
+        }
+
         if (!pdata->keymap) {
                 dev_dbg(dev, "no keymap from pdata\n");
                 return -EINVAL;