Re: [PATCH 14/18] platform/chrome: cros_kbd_led_backlight: provide ID table for avoiding fallback match

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On Fri, Mar 29, 2024 at 03:56:26PM +0800, Tzung-Bi Shih wrote:
> Instead of using fallback driver name match, provide ID table[1] for the
> primary match.
> 
> Also shrink the name for fitting to [2].
> 
> [1]: https://elixir.bootlin.com/linux/v6.8/source/drivers/base/platform.c#L1353
> [2]: https://elixir.bootlin.com/linux/v6.8/source/include/linux/mod_devicetable.h#L608
> 
> Signed-off-by: Tzung-Bi Shih <tzungbi@xxxxxxxxxx>

Reviewed-by: Benson Leung <bleung@xxxxxxxxxxxx>

> ---
>  drivers/platform/chrome/cros_kbd_led_backlight.c | 11 +++++++++--
>  1 file changed, 9 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/platform/chrome/cros_kbd_led_backlight.c b/drivers/platform/chrome/cros_kbd_led_backlight.c
> index 793fd3f1015d..b83e4f328620 100644
> --- a/drivers/platform/chrome/cros_kbd_led_backlight.c
> +++ b/drivers/platform/chrome/cros_kbd_led_backlight.c
> @@ -9,6 +9,7 @@
>  #include <linux/init.h>
>  #include <linux/kernel.h>
>  #include <linux/leds.h>
> +#include <linux/mod_devicetable.h>
>  #include <linux/module.h>
>  #include <linux/of.h>
>  #include <linux/platform_data/cros_ec_commands.h>
> @@ -247,17 +248,23 @@ static const struct of_device_id keyboard_led_of_match[] = {
>  MODULE_DEVICE_TABLE(of, keyboard_led_of_match);
>  #endif
>  
> +static const struct platform_device_id keyboard_led_id[] = {
> +	{ "cros-keyboard-leds", 0 },
> +	{}
> +};
> +MODULE_DEVICE_TABLE(platform, keyboard_led_id);
> +
>  static struct platform_driver keyboard_led_driver = {
>  	.driver		= {
> -		.name	= "chromeos-keyboard-leds",
> +		.name	= "cros-keyboard-leds",
>  		.acpi_match_table = ACPI_PTR(keyboard_led_acpi_match),
>  		.of_match_table = of_match_ptr(keyboard_led_of_match),
>  	},
>  	.probe		= keyboard_led_probe,
> +	.id_table	= keyboard_led_id,
>  };
>  module_platform_driver(keyboard_led_driver);
>  
>  MODULE_AUTHOR("Simon Que <sque@xxxxxxxxxxxx>");
>  MODULE_DESCRIPTION("ChromeOS Keyboard backlight LED Driver");
>  MODULE_LICENSE("GPL");
> -MODULE_ALIAS("platform:chromeos-keyboard-leds");
> -- 
> 2.44.0.478.gd926399ef9-goog
> 
> 

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