pwm: pwm-tiehrpwm: Fix conflicting channel period setting

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EHRPWM hardware supports 2 independent PWM channels. However the device
uses only one register to handle period setting for both channels. So
both channels should be configured for same period (in nsec).

Fix the same by returning error for conflicting period values.

However, allow
1. Configuration of period settings if not conflicting with other
channels
2. Re-configuring of period settings if no other channels being
configured

Signed-off-by: Philip, Avinash <avinashphilip@ti.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>

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Philip, Avinash 2012-09-06 10:44:25 +05:30 • committed by Thierry Reding

parent c06fad9d28

commit 01b2d4536f

1 changed files with 29 additions and 0 deletions

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drivers/pwm/pwm-tiehrpwm.c

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