tree 06eb17c64d51968825b97a9ed43e7aa2a159e1d9
parent 87248991a1de28e73dc30057e82d831bc11cdd44
author Boris Brezillon <boris.brezillon@free-electrons.com> 1465895600 +0200
committer Thierry Reding <thierry.reding@gmail.com> 1468219469 +0200

regulator: pwm: Retrieve correct voltage

The continuous PWM voltage regulator is caching the voltage value in
the ->volt_uV field. While most of the time this value should reflect the
real voltage, sometime it can be sightly different if the PWM device
rounded the set_duty_cycle request.
Moreover, this value is not valid until someone has modified the regulator
output.

Remove the ->volt_uV field and always rely on the PWM state to calculate
the regulator output.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Tested-by: Brian Norris <briannorris@chromium.org>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>