pwm: add min-duty = 0

Signed-off-by: 许盛飞 <xsf@rock-chips.com>

diff --git a/drivers/pwm/pwm-rockchip.c b/drivers/pwm/pwm-rockchip.c
index 137b58ab230d4d54567a12893e2a60a2e55c6c9c..d44f1fa47cda1873823c24d840c0beb62d762f7b 100644 (file)
--- a/drivers/pwm/pwm-rockchip.c
+++ b/drivers/pwm/pwm-rockchip.c
@@ -81,7 +81,7 @@ module_param_named(dbg_level, pwm_dbg_level, int, 0644);
 #define PWMCR_MIN_PRESCALE     0x00
 #define PWMCR_MAX_PRESCALE     0x07
 
-#define PWMDCR_MIN_DUTY                0x0001
+#define PWMDCR_MIN_DUTY                0x0000
 #define PWMDCR_MAX_DUTY                0xFFFF
 
 #define PWMPCR_MIN_PERIOD              0x0001