* Sebastian Reichel <sre@xxxxxxxxxx> [131009 14:25]:
> Add device tree support for twl4030 keypad driver and update the
> Documentation with twl4030 keypad device tree binding information.
>
> This patch also adds a twl4030 keypad node to the twl4030.dtsi file,
> so that board files can just add the keymap.
>
> Tested on Nokia N900.
Nice :) Just few cosmetic comments below.
>
> +#ifdef CONFIG_OF
> +static int twl4030_keypad_parse_dt(struct device *dev,
> + struct twl4030_keypad *keypad_data)
> +{
I guess the way to go nowadays is to use #IS_ENABLED(CONFIG_OF) here
and later on in this patch.
> @@ -331,20 +358,12 @@ static int twl4030_kp_program(struct twl4030_keypad *kp)
> static int twl4030_kp_probe(struct platform_device *pdev)
> {
> struct twl4030_keypad_data *pdata = pdev->dev.platform_data;
> - const struct matrix_keymap_data *keymap_data;
> + const struct matrix_keymap_data *keymap_data = NULL;
> struct twl4030_keypad *kp;
> struct input_dev *input;
> u8 reg;
> int error;
>
> - if (!pdata || !pdata->rows || !pdata->cols || !pdata->keymap_data ||
> - pdata->rows > TWL4030_MAX_ROWS || pdata->cols > TWL4030_MAX_COLS) {
> - dev_err(&pdev->dev, "Invalid platform_data\n");
> - return -EINVAL;
> - }
> -
> - keymap_data = pdata->keymap_data;
> -
> kp = kzalloc(sizeof(*kp), GFP_KERNEL);
> input = input_allocate_device();
> if (!kp || !input) {
I assume you have tested the above so it does not break things
for legacy booting?
Other than that:
Acked-by: Tony Lindgren <tony@xxxxxxxxxxx>
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