From: Claudiu Beznea <claudiu.bez...@microchip.com>
Add PWM normal and complementary modes.
Signed-off-by: Claudiu Beznea <claudiu.bez...@microchip.com>
---
Documentation/pwm.txt | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/Documentation/pwm.txt b/Documentation/pwm.txt
index 8fbf0aa3ba2d..669fd4c9cc8e 100644
--- a/Documentation/pwm.txt
+++ b/Documentation/pwm.txt
@@ -110,6 +110,28 @@ channel that was exported. The following properties will
then be available:
- 0 - disabled
- 1 - enabled
+ mode
+ Get/set PWM channel working mode.
+
+ In the following description PWMx_y refers to output y of PWM with ID x.
+
+ Normal mode - for PWM channels with one output; this should be the
+ default working mode for every PWM channel; output waveforms looks
+ like this:
+ __ __ __ __
+ PWMx __| |____| |____| |____| |__
+ ^ ^ ^ ^
+
+ Complementary mode - for PWM channels with two outputs; output waveforms
+ looks line this:
+ __ __ __ __
+ PWMx_0 __| |____| |____| |____| |__
+ __ ____ ____ ____ __
+ PWMx_1 |__| |__| |__| |__|
+ ^ ^ ^ ^
+
+ Where '^' specifies the beginning of a period.
+
Implementing a PWM driver
-------------------------
--
2.7.4
