path: root/drivers/regulator/tps65023-regulator.c
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authorRajendra Nayak <rnayak@ti.com>2011-11-18 16:47:20 +0530
committerMark Brown <broonie@opensource.wolfsonmicro.com>2011-11-23 18:47:31 +0000
commit69511a452e6dc6b74fe4f3671a51b1b44b9c57e3 (patch)
tree486fe8a536a367c0e83f55a97103a1a527a7e2bf /drivers/regulator/tps65023-regulator.c
parent2c043bcbf287dc69848054d5c02c55c20f7a7bc5 (diff)
regulator: map consumer regulator based on device tree
Device nodes in DT can associate themselves with one or more regulators/supply by providing a list of phandles (to regulator nodes) and corresponding supply names. For Example: devicenode: node@0x0 { ... ... vmmc-supply = <&regulator1>; vpll-supply = <&regulator2>; }; The driver would then do a regulator_get(dev, "vmmc"); to get regulator1 and do a regulator_get(dev, "vpll"); to get regulator2. of_get_regulator() extracts the regulator node for a given device, based on the supply name. Use it to look up the regulator for a given consumer from device tree, during a regulator_get(). If not found fallback and lookup through the regulator_map_list instead. Also, since the regulator dt nodes can use the same binding to associate with a parent regulator/supply, allow the drivers to specify a supply_name, which can then be used to lookup dt to find the parent phandle. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers/regulator/tps65023-regulator.c')
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