[PATCH v4 3/5] firmware: raspberrypi: register nvmem driver

[Thomas Weißschuh]

On Fri, May 08, 2026 at 04:42:46PM +0200, Gregor Herburger wrote:
> The Raspberry Pi firmware exposes two regions with otp registers. The
> first region called "customer otp" is available on all Raspberry Pi
> models. The second is only available on the Raspberry Pi 5 (bcm2712).

(...)

> @@ -327,12 +371,25 @@ static void rpi_firmware_remove(struct platform_device *pdev)
>  	rpi_hwmon = NULL;
>  	platform_device_unregister(rpi_clk);
>  	rpi_clk = NULL;
> +	platform_device_unregister(rpi_otp_customer);
> +	rpi_otp_customer = NULL;
> +	if (rpi_otp_private)

This check looks unnecessary.

> +		platform_device_unregister(rpi_otp_private);
> +
> +	rpi_otp_private = NULL;
>  
>  	rpi_firmware_put(fw);
>  }