watchdog: Add hardware dependency to BCM7038 driver
The BCM7038 watchdog driver is specific to Broadcom ARM and MIPS
SoCs so do not present it on other architectures, unless
build-testing.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Justin Chen <justinpopo6@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index fc1b295..5f29f72 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -1380,10 +1380,12 @@
tristate "BCM7038 Watchdog"
select WATCHDOG_CORE
depends on HAS_IOMEM
+ depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
help
- Watchdog driver for the built-in hardware in Broadcom 7038 SoCs.
-
- Say 'Y or 'M' here to enable the driver.
+ Watchdog driver for the built-in hardware in Broadcom 7038 and
+ later SoCs used in set-top boxes. BCM7038 was made public
+ during the 2004 CES, and since then, many Broadcom chips use this
+ watchdog block, including some cable modem chips.
config IMGPDC_WDT
tristate "Imagination Technologies PDC Watchdog Timer"