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path: root/drivers/regulator/of_regulator.c
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* regulator: Add generic DT parsing for regulatorsThierry Reding2012-05-041-0/+47
| | | | | | | | | | | | | Looking up init data for regulators found on chips is a common operation that can be handled in a generic way. The new helper function introduced by this patch looks up the children of a given node by names specified in a match table and fills that match table with information parsed from the DT. This is based on work by Rhyland Klein <rklein@nvidia.com>. Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* regulator: Set apply_uV only when min and max voltages are definedKarol Lewandowski2012-01-261-1/+1
| | | | | | | | | | | | | | | | | | | | apply_uV is errornously set when regulator is instantiated from device tree, even when it doesn't contain any voltage constraints. This commit fixes error: machine_constraints_voltage: CHARGER: failed to apply 0uV constraint for following regulator description in DTS: CHARGER { regulator-min-microamp = <100000>; regulator-max-microamp = <200000>; } Signed-off-by: Karol Lewandowski <k.lewandowsk@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* regulator: pass device_node to of_get_regulator_init_data()Shawn Guo2011-12-051-3/+4
| | | | | | | | | | | | | | | | | It's not always true that the device_node of regulator can be found at dev->of_node at the time when of_get_regulator_init_data() is being called, because in some cases the regulator nodes in device tree do not have 'struct device' behind them until regulator_dev gets created for it by core function regulator_register(). The patch adds device_node as a new parameter to of_get_regulator_init_data(), so that caller can pass in the node of regulator directly. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* regulator: If a single voltage is set with device tree then set apply_uVMark Brown2011-12-051-0/+3
| | | | | | | | Otherwise there is no way in the bindings to configure a fixed voltage via software. It seems reasonable to assume that if the binding explicitly specifies a voltage we want to actually use that voltage. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* regulator: export of_get_regulator_init_dataAxel Lin2011-11-271-0/+2
| | | | | | | | | | | | | | of_get_regulator_init_data is called in drivers/regulator/fixed.c which could be a module. Export of_get_regulator_init_data to fix below build error: ERROR: "of_get_regulator_init_data" [drivers/regulator/fixed.ko] undefined! make[1]: *** [__modpost] Error 1 make: *** [modules] Error 2 Reported-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* regulator: helper routine to extract regulator_init_dataRajendra Nayak2011-11-231-0/+81
The helper routine is meant to be used by the regulator drivers to extract the regulator_init_data structure from the data that is passed from device tree. 'consumer_supplies' which is part of regulator_init_data is not extracted as the regulator consumer mappings are passed through DT differently, implemented in subsequent patches. Similarly the regulator<-->parent/supply mapping is handled in subsequent patches. Also add documentation for regulator bindings to be used to pass regulator_init_data struct information from device tree. Some of the regulator properties which are linux and board specific, are left out since its not clear if they can be in someway embedded into the kernel or passed in from DT. They will be revisited later. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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