hwrng: cavium - HW_RANDOM_CAVIUM should depend on ARCH_THUNDER

[ Upstream commit ab7d88549e2f7ae116afd303f32e1950cb790a1d ]

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: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig
index 31d367949fade4b0eec7f97a73e08ddb7ea27148..a7d9e4600d40e31eaf6d28b3844191023339179e 100644 (file)
--- a/drivers/char/hw_random/Kconfig
+++ b/drivers/char/hw_random/Kconfig
@@ -427,7 +427,7 @@ config HW_RANDOM_MESON
 
 config HW_RANDOM_CAVIUM
        tristate "Cavium ThunderX Random Number Generator support"
-       depends on HW_RANDOM && PCI && ARM64
+       depends on HW_RANDOM && PCI && ARCH_THUNDER
        default HW_RANDOM
        help
          This driver provides kernel-side support for the Random Number