hwrng: cavium - HW_RANDOM_CAVIUM should depend on ARCH_THUNDER

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>

diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig
index 9704963..a087156 100644 (file)
--- a/drivers/char/hw_random/Kconfig
+++ b/drivers/char/hw_random/Kconfig
@@ -401,7 +401,7 @@ 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