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authorBalaji T K <balajitk@ti.com>2014-02-19 14:56:40 (GMT)
committerChris Ball <chris@printf.net>2014-03-04 16:44:47 (GMT)
commit11469e0bb1c5eedd3b489a4b19dbd26c02577674 (patch)
tree62ead13af6af8dba9426277a2cfced9bc5b48d4f /Documentation/devicetree/bindings/regulator
parent987fd49b894ec964231dfc5b6bbb2bc12e2b56b5 (diff)
regulator: add pbias regulator support
pbias register controls internal power supply to sd card i/o pads in most OMAPs (OMAP2-5, DRA7). Control bits for selecting voltage level and enabling/disabling are in the same PBIAS register. Signed-off-by: Balaji T K <balajitk@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Mark Brown <broonie@linaro.org> Tested-by: Florian Vaussard <florian.vaussard@epfl.ch> Tested-by: Stefan Roese <sr@denx.de> Signed-off-by: Chris Ball <chris@printf.net>
Diffstat (limited to 'Documentation/devicetree/bindings/regulator')
-rw-r--r--Documentation/devicetree/bindings/regulator/pbias-regulator.txt27
1 files changed, 27 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/regulator/pbias-regulator.txt b/Documentation/devicetree/bindings/regulator/pbias-regulator.txt
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+PBIAS internal regulator for SD card dual voltage i/o pads on OMAP SoCs.
+
+Required properties:
+- compatible:
+ - "ti,pbias-omap" for OMAP2, OMAP3, OMAP4, OMAP5, DRA7.
+- reg: pbias register offset from syscon base and size of pbias register.
+- syscon : phandle of the system control module
+- regulator-name : should be
+ pbias_mmc_omap2430 for OMAP2430, OMAP3 SoCs
+ pbias_sim_omap3 for OMAP3 SoCs
+ pbias_mmc_omap4 for OMAP4 SoCs
+ pbias_mmc_omap5 for OMAP5 and DRA7 SoC
+
+Optional properties:
+- Any optional property defined in bindings/regulator/regulator.txt
+
+Example:
+
+ pbias_regulator: pbias_regulator {
+ compatible = "ti,pbias-omap";
+ reg = <0 0x4>;
+ syscon = <&omap5_padconf_global>;
+ pbias_mmc_reg: pbias_mmc_omap5 {
+ regulator-name = "pbias_mmc_omap5";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3000000>;
+ };

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