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SubjectRe: [PATCH 5/5] Input: Add ChromeOS EC keyboard driver
Date
On Wed, 12 Dec 2012 13:33:48 -0800, Simon Glass <sjg@chromium.org> wrote:
> Use the key-matrix layer to interpret key scan information from the EC
> and inject input based on the FDT-supplied key map. This driver registers
> itself with the ChromeOS EC driver to perform communications.
>
> Additional FDT bindings are provided to specify rows/columns and the
> auto-repeat information.
>
> Signed-off-by: Simon Glass <sjg@chromium.org>
> Signed-off-by: Luigi Semenzato <semenzato@chromium.org>
> Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
> ---
> .../devicetree/bindings/input/cros-ec-keyb.txt | 77 ++++
> drivers/input/keyboard/Kconfig | 10 +
> drivers/input/keyboard/Makefile | 1 +
> drivers/input/keyboard/cros_ec_keyb.c | 413 ++++++++++++++++++++
> 4 files changed, 501 insertions(+), 0 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/input/cros-ec-keyb.txt
> create mode 100644 drivers/input/keyboard/cros_ec_keyb.c
>
> diff --git a/Documentation/devicetree/bindings/input/cros-ec-keyb.txt b/Documentation/devicetree/bindings/input/cros-ec-keyb.txt
> new file mode 100644
> index 0000000..67f51d8
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/input/cros-ec-keyb.txt
> @@ -0,0 +1,77 @@
> +ChromeOS EC Keyboard
> +
> +Google's ChromeOS EC Keyboard is a simple matrix keyboard implemented on
> +a separate EC (Embedded Controller) device. It provides a message for reading
> +key scans from the EC. These are then converted into keycodes for processing
> +by the kernel.
> +
> +Required properties:
> +- compatible: "google,cros-ec-keyb"
> +- google,key-rows: Number of keyboard rows (must be <= 8)
> +- google,key-columns: Number of keyboard columns (must be <= 13)
> +- google,repeat-delay-ms: Key repeat delay in milliseconds
> +- google,repeat-rate-ms: Key repeat rate in milliseconds

Hmmm, these should probably be in a common binding. Take a look at
the other input bindings and make a proposal for properties to add to
matrix-keymap.txt.

> +- linux.keymap: Key map as for matrix-keypad.txt

should be: linux,keymap (comma instead of period)

g.


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