drivers/rng: simplify Kconfig

For all sandbox systems with DM_RNG we enable RNG_SANDBOX. So we can simply
set the default to yes.

All rng drivers depend on DM_RNG. Use a single 'if' instead of individual
dependencies. Now 'make menuconfig' shows the individual drivers neatly
indented under the DM_RNG entry.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Sughosh Ganu <sughosh.ganu@linaro.org>

diff --git a/configs/sandbox64_defconfig b/configs/sandbox64_defconfig
index d1c94b65a1e59ec00d35914c17d44c461aa3dbf7..71a4d7fccb57ed7e769e85ada5cfe46f9e50f68e 100644 (file)
--- a/configs/sandbox64_defconfig
+++ b/configs/sandbox64_defconfig
@@ -169,7 +169,6 @@ CONFIG_REMOTEPROC_SANDBOX=y
 CONFIG_DM_RESET=y
 CONFIG_SANDBOX_RESET=y
 CONFIG_DM_RNG=y
-CONFIG_RNG_SANDBOX=y
 CONFIG_DM_RTC=y
 CONFIG_RTC_RV8803=y
 CONFIG_SANDBOX_SERIAL=y

diff --git a/configs/sandbox_defconfig b/configs/sandbox_defconfig
index 45b5475b79b7dd7e4c5262b81ced0fc270f1eba7..f96891ecae7a2d5bcd214154f2539719babe5e3b 100644 (file)
--- a/configs/sandbox_defconfig
+++ b/configs/sandbox_defconfig
@@ -189,7 +189,6 @@ CONFIG_REMOTEPROC_SANDBOX=y
 CONFIG_DM_RESET=y
 CONFIG_SANDBOX_RESET=y
 CONFIG_DM_RNG=y
-CONFIG_RNG_SANDBOX=y
 CONFIG_DM_RTC=y
 CONFIG_RTC_RV8803=y
 CONFIG_DEBUG_UART_SANDBOX=y

diff --git a/drivers/rng/Kconfig b/drivers/rng/Kconfig
index 893b89d49b1dc8f6e47dd80b1ee10e9bf39b061f..c1aa43b8236abf787f929049e230b83e8b83b60a 100644 (file)
--- a/drivers/rng/Kconfig
+++ b/drivers/rng/Kconfig
@@ -6,16 +6,21 @@ config DM_RNG
          This interface is used to initialise the rng device and to
          read the random seed from the device.
 
+if DM_RNG
+
 config RNG_SANDBOX
        bool "Sandbox random number generator"
-       depends on SANDBOX && DM_RNG
+       depends on SANDBOX
+       default y
        help
          Enable random number generator for sandbox. This is an
          emulation of a rng device.
 
 config RNG_STM32MP1
        bool "Enable random number generator for STM32MP1"
-       depends on ARCH_STM32MP && DM_RNG
+       depends on ARCH_STM32MP
        default n
        help
          Enable STM32MP1 rng driver.
+
+endif