From: Geert Uytterhoeven <geert+renesas@glider.be>
Date: Wed, 12 Jan 2022 15:05:03 +0100
Subject: hwrng: cavium - HW_RANDOM_CAVIUM should depend on ARCH_THUNDER
Git-commit: ab7d88549e2f7ae116afd303f32e1950cb790a1d
Patch-mainline: 5.18-rc1
References: git-fixes

The Cavium ThunderX Random Number Generator is only present on Cavium
ThunderX SoCs, and not available as an independent PCIe endpoint.  Hence
add a dependency on ARCH_THUNDER, to prevent asking the user about this
driver when configuring a kernel without Cavium Thunder SoC  support.

Fixes: cc2f1908c6b8f625 ("hwrng: cavium - Add Cavium HWRNG driver for ThunderX SoC.")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
 drivers/char/hw_random/Kconfig |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/char/hw_random/Kconfig
+++ b/drivers/char/hw_random/Kconfig
@@ -385,7 +385,7 @@ config HW_RANDOM_MESON
 
 config HW_RANDOM_CAVIUM
        tristate "Cavium ThunderX Random Number Generator support"
-       depends on HW_RANDOM && PCI && (ARM64 || (COMPILE_TEST && 64BIT))
+       depends on HW_RANDOM && PCI && (ARCH_THUNDER || (COMPILE_TEST && 64BIT))
        default HW_RANDOM
        ---help---
          This driver provides kernel-side support for the Random Number