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Enable regmap cache to reduce i2c transactions and corresponding
interrupts if regulator is accessed frequently. Since the register map
is small, we use a FLAT regmap cache.
Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Link: https://lore.kernel.org/r/20210803165211.3b00db29@xhacker.debian
Signed-off-by: Mark Brown <broonie@kernel.org>
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Fixing W=1 build warning when no support for device tree is there.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Link: https://lore.kernel.org/r/20200810095753.59ce9f75@xhacker.debian
Signed-off-by: Mark Brown <broonie@kernel.org>
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The SY8827N from Silergy Corp is a single output DC/DC converter. The
voltage can be controlled via I2C.
Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Link: https://lore.kernel.org/r/20200702171438.20edc523@xhacker.debian
Signed-off-by: Mark Brown <broonie@kernel.org>
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