[PATCH 09/10] qemu: arm: Remove platform specific function to get RNG device

[Heinrich Schuchardt]

On 2/24/22 19:05, Sughosh Ganu wrote:
> The Qemu platform has a function defined to get the random number
> generator(RNG) device. However, the RNG device can be obtained simply
> by searching for a device belonging to the RNG uclass. Remove the
> superfluous platform function defined for the Qemu platform for
> getting the RNG device.
>
> Signed-off-by: Sughosh Ganu <sughosh.ganu at linaro.org>

Tested-by: Heinrich Schuchardt <xypron.glpk at gmx.de>

> ---
>   board/emulation/qemu-arm/qemu-arm.c | 42 -----------------------------
>   1 file changed, 42 deletions(-)
>
> diff --git a/board/emulation/qemu-arm/qemu-arm.c b/board/emulation/qemu-arm/qemu-arm.c
> index 16d5a97167..c9e886e44a 100644
> --- a/board/emulation/qemu-arm/qemu-arm.c
> +++ b/board/emulation/qemu-arm/qemu-arm.c
> @@ -107,48 +107,6 @@ void enable_caches(void)
>   	 dcache_enable();
>   }
>
> -#if defined(CONFIG_EFI_RNG_PROTOCOL)
> -#include <efi_loader.h>
> -#include <efi_rng.h>
> -
> -#include <dm/device-internal.h>
> -
> -efi_status_t platform_get_rng_device(struct udevice **dev)
> -{
> -	int ret;
> -	efi_status_t status = EFI_DEVICE_ERROR;
> -	struct udevice *bus, *devp;
> -
> -	for (uclass_first_device(UCLASS_VIRTIO, &bus); bus;
> -	     uclass_next_device(&bus)) {
> -		for (device_find_first_child(bus, &devp); devp;
> -		     device_find_next_child(&devp)) {
> -			if (device_get_uclass_id(devp) == UCLASS_RNG) {
> -				*dev = devp;
> -				status = EFI_SUCCESS;
> -				break;
> -			}
> -		}
> -	}
> -
> -	if (status != EFI_SUCCESS) {
> -		debug("No rng device found\n");
> -		return EFI_DEVICE_ERROR;
> -	}
> -
> -	if (*dev) {
> -		ret = device_probe(*dev);
> -		if (ret)
> -			return EFI_DEVICE_ERROR;
> -	} else {
> -		debug("Couldn't get child device\n");
> -		return EFI_DEVICE_ERROR;
> -	}
> -
> -	return EFI_SUCCESS;
> -}
> -#endif /* CONFIG_EFI_RNG_PROTOCOL */
> -
>   #ifdef CONFIG_ARM64
>   #define __W	"w"
>   #else