Re: [PATCH 2/5] drivers/input/joystick: sensehat: Raspberry Pi Sense HAT joystick driver

[Randy Dunlap]

On 10/29/21 2:55 PM, Charles Mirabile wrote:
> This patch implements support for the joystick.
> It supports left/right/up/down/enter and is
> attached via i2c and a gpio pin for irq.
>
> Signed-off-by: Charles Mirabile <cmirabil@xxxxxxxxxx>
> Signed-off-by: Mwesigwa Guma <mguma@xxxxxxxxxx>
> Signed-off-by: Joel Savitz <jsavitz@xxxxxxxxxx>
> ---
>   drivers/input/joystick/Kconfig             |   8 ++
>   drivers/input/joystick/Makefile            |   1 +
>   drivers/input/joystick/sensehat-joystick.c | 135 +++++++++++++++++++++
>   3 files changed, 144 insertions(+)
>   create mode 100644 drivers/input/joystick/sensehat-joystick.c
>
> diff --git a/drivers/input/joystick/Kconfig b/drivers/input/joystick/Kconfig
> index 3b23078bc7b5..d2f78353b74c 100644
> --- a/drivers/input/joystick/Kconfig
> +++ b/drivers/input/joystick/Kconfig
> @@ -399,4 +399,12 @@ config JOYSTICK_N64
>   	  Say Y here if you want enable support for the four
>   	  built-in controller ports on the Nintendo 64 console.
>   
> +config JOYSTICK_SENSEHAT
> +	tristate "Raspberry Pi Sense HAT joystick"
> +	depends on GPIOLIB && INPUT

I think also:
	depends on I2C

since this one:

> +	select MFD_SENSEHAT_CORE

also depends on I2C and 'select' does not follow any
dependency chains.

Same comment applies to patch 3/5 for SENSEHAT_DISPLAY.

> +
> +	help
> +	  This is the joystick driver for the Raspberry Pi Sense HAT
> +
>   endif


--
~Randy