[PATCH v8 5/6] pwm: add documentation for pwm push-pull mode
From: <hidden>
Date: 2019-01-03 13:30:03
Also in:
linux-doc, linux-pwm, lkml
Subsystem:
documentation, the rest · Maintainers:
Jonathan Corbet, Linus Torvalds
From: Claudiu Beznea <redacted> Add documentation for PWM push-pull mode. Signed-off-by: Claudiu Beznea <redacted> --- Documentation/pwm.txt | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)
diff --git a/Documentation/pwm.txt b/Documentation/pwm.txt
index 669fd4c9cc8e..80552627627d 100644
--- a/Documentation/pwm.txt
+++ b/Documentation/pwm.txt@@ -130,6 +130,22 @@ channel that was exported. The following properties will then be available: PWMx_1 |__| |__| |__| |__| ^ ^ ^ ^ + Push-pull mode - for PWM channels with two outputs; output waveforms + for a PWM channel in push-pull mode, with normal polarity looks like + this: + __ __ + PWMx_0 __| |____________| |__________ + __ __ + PWMx_1 __________| |____________| |__ + ^ ^ ^ ^ + + If polarity is inversed: + __ ____________ __________ + PWMx_0 |__| |__| + __________ ____________ __ + PWMx_1 |__| |__| + ^ ^ ^ ^ + Where '^' specifies the beginning of a period. Implementing a PWM driver
--
2.7.4
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