hwmon: (aspeed-pwm-tacho) Select REGMAP

The driver uses regmap and thus has to select it to avoid build
errors such as the following.

drivers/hwmon/aspeed-pwm-tacho.c:337:21: error: variable
	'aspeed_pwm_tacho_regmap_config' has initializer but incomplete type

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Acked-by: Joel Stanley <joel@jms.id.au>
Fixes: 2d7a548a3eff ("drivers: hwmon: Support for ASPEED PWM/Fan tach")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index 22d5eafd681541374817314a1a2db164bb235ce7..5ef2814345ef7f37aa47fd47b8765ce6cc7fad1b 100644 (file)
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -343,6 +343,7 @@ config SENSORS_ASB100
 
 config SENSORS_ASPEED
        tristate "ASPEED AST2400/AST2500 PWM and Fan tach driver"
+       select REGMAP
        help
          This driver provides support for ASPEED AST2400/AST2500 PWM
          and Fan Tacho controllers.