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Regulator drivers should not be specifying constraints since the valid
configurations depend on how the device is used in a given system, there
is no way to know if a configuration is safe for a given board.
Signed-off-by: Mark Brown <broonie@linaro.org>
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Propagate the error values returned by the function instead.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
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Use devm_regulator_register() to make cleanup paths simpler,
and remove unnecessary remove().
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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Fix a warning below.
drivers/regulator/lp872x.c:910:33: warning: cast from pointer to integer of
different size [-Wpointer-to-int-cast]
And checkpatch warnings are fixed.
WARNING: space prohibited before semicolon
Signed-off-by: Milo Kim <milo.kim@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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This patch enables the DT structure of the LP8720 and LP8725 device.
The LP872x platform data is generated when the device tree is configured.
Even if the platform data is NULL, it is no issue at all because the driver is
configured with the default mode.
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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All regulators have ascendant voltage list in this driver.
Use regulator_map_voltage_ascend for them.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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There is only one user calling _rdev_to_offset() function.
Remove _rdev_to_offset() makes the code simpler.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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CONFIG_HOTPLUG is going away as an option so __devexit is no
longer needed.
Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer
needed.
Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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The lp872x_check_dvs_validity() is used for checking DVS platform data.
If the DVS platform data is not defined, return as error code.
Now, this is unnecessary because the default DVS mode is set in this case.
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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The lp872x_set_dvs() is used for changing the DVS pin state.
This function works only when the DVS platform data is defined.
So don't assume that DVS data is always valid.
In case the platform data is not defined, the DVS data is set to NULL
for skipping the DVS pin control.
DVS selection and GPIO pin number are used for the LP872x DVS pin control.
For better readability, DVS selection argument is added in lp872x_set_dvs().
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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The platform specific configuration(general_config) is optional.
However, the DVS settings should be configured explicitly while
loading the driver.
This patch enables configuring the default DVS mode even though
the platform data is not defined.
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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The lp872x driver has the DVS platform data which select the register address
of the BUCK voltage.
This patch enables updating the default DVS mode when the DVS platform data
is not defined.
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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This patch enables registering the regulator driver even though
the regulator_init_data is not defined in the platform side.
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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specific range
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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Pass regulator id rahter than the index to lp872x_find_regulator_init_data(),
then the code can be simpler.
We can also get max_regulators by lp->num_regulators.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Tested-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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Use err log rather than warning message when the platform data is NULL
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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Return -EINVAL if pdata is NULL, otherwise we have NULL dereference bug.
This patch also moves the code checking pdata earlier in lp872x_probe.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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This driver supports TI/National LP8720, LP8725 PMIC.
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Reviewed-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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