I want to use 4 row,4 col on my board.I have activated the keypad driver in the kernel and configured the column and row keypads in the board file.
In the device filesystem is the entry :
I: Bus=0019 Vendor=0000 Product=0000 Version=0000
B: KEY=3 0 0 0 0 0 0 40000800 1680 0 78000000 10000ffe
the interrupts is：
114: 0 0 0 0 GIC imx-keypad
But,when press then button,there is no interrupts on.
How to set clk? The BSP has not kpp clk.
keypad->clk = clk_get(&pdev->dev, "kpp");
Has somebody an idea what could be the reason?