Re: [PATCH v3] Input: matrix-keypad - Add device tree support
From: Stephen Warren <hidden>
Date: 2012-11-02 18:55:53
On 11/02/2012 05:03 AM, AnilKumar Ch wrote:
Add device tree support to matrix keypad driver and usage details are added to device tree documentation. Driver was tested on AM335x EVM.
quoted hunk
+++ b/Documentation/devicetree/bindings/input/gpio-matrix-keypad.txt
+Optional Properties:
+- clustered-irq: have clustered irq number, that is needed if the irq + is a combined irq source for the whole matix keypad. + This is useful if rows and columns of the keypad are + connected to a GPIO expander. +- clustered-irq-flags: clustered irq flags
Shouldn't the GPIO expander itself be an IRQ controller too? What are the clustered-irq-flags values?