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authorNishanth Menon <nm@ti.com>2014-01-23 17:57:27 (GMT)
committerMark Brown <broonie@linaro.org>2014-02-03 12:33:17 (GMT)
commit6127daa85094e20b42d306dde800e0d745847990 (patch)
treee8f3bf33c4be4889a0798e4dea4af399629d1904 /Documentation/devicetree/bindings/regulator
parent38dbfb59d1175ef458d006556061adeaa8751b72 (diff)
regulator: ti-abb: Add support for interleaved LDO registers
Certain platforms such as DRA7 have quirky memory maps such as: PRM_ABBLDO_DSPEVE_CTRL 0x4ae07e20 PRM_ABBLDO_IVA_CTRL 0x4ae07e24 other-registers PRM_ABBLDO_DSPEVE_SETUP 0x4ae07e30 PRM_ABBLDO_IVA_SETUP 0x4ae07e34 These need the address range allocation to be either not reserved OR unique allocation per register instance or use something like syscon based solution. By going with unique allocation per register, we are able to now have a single compatible driver for all instances on all platforms which use the IP block. So, introduce a new "ti,abb-v3" compatible to allow for definitions where explicit register definitions are provided, while maintaining backward compatibility of older predefined register offsets provided by "ti-abb-v1" and "ti-abb-v2". As part of this change, we rename a few variables to indicate the appropriate meaning. Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'Documentation/devicetree/bindings/regulator')
-rw-r--r--Documentation/devicetree/bindings/regulator/ti-abb-regulator.txt6
1 files changed, 5 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/regulator/ti-abb-regulator.txt b/Documentation/devicetree/bindings/regulator/ti-abb-regulator.txt
index 2e57a33..c58db75 100644
--- a/Documentation/devicetree/bindings/regulator/ti-abb-regulator.txt
+++ b/Documentation/devicetree/bindings/regulator/ti-abb-regulator.txt
@@ -4,10 +4,14 @@ Required Properties:
- compatible: Should be one of:
- "ti,abb-v1" for older SoCs like OMAP3
- "ti,abb-v2" for newer SoCs like OMAP4, OMAP5
+ - "ti,abb-v3" for a generic definition where setup and control registers are
+ provided (example: DRA7)
- reg: Address and length of the register set for the device. It contains
the information of registers in the same order as described by reg-names
- reg-names: Should contain the reg names
- - "base-address" - contains base address of ABB module
+ - "base-address" - contains base address of ABB module (ti,abb-v1,ti,abb-v2)
+ - "control-address" - contains control register address of ABB module (ti,abb-v3)
+ - "setup-address" - contains setup register address of ABB module (ti,abb-v3)
- "int-address" - contains address of interrupt register for ABB module
(also see Optional properties)
- #address-cell: should be 0

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