Add PWM-DAC driver support for the StarFive JH7110 SoC.
Reviewed-by: Walker Chen <walker.chen@starfivetech.com>
Signed-off-by: Hal Feng <hal.feng@starfivetech.com>
Link: https://lore.kernel.org/r/20230814080618.10036-3-hal.feng@starfivetech.comSigned-off-by: Mark Brown <broonie@kernel.org>