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| author | Laxman Dewangan <ldewangan@nvidia.com> | 2012-08-09 13:00:39 +0200 |
|---|---|---|
| committer | Stephen Warren <swarren@nvidia.com> | 2012-09-06 19:48:38 +0200 |
| commit | fa4a925230835eab27c9c97a0a6d72caa4fe2b67 (patch) | |
| tree | b882962e95b179b148139e1af4abb5f09e55eb16 /arch/arm/boot/dts/tegra30-cardhu-a02.dts | |
| parent | ARM: dt: tegra: cardhu: split dts file for support multiple board versions (diff) | |
| download | linux-fa4a925230835eab27c9c97a0a6d72caa4fe2b67.tar.xz linux-fa4a925230835eab27c9c97a0a6d72caa4fe2b67.zip | |
ARM: tegra: cardhu: add dt entry for fixed regulators
Cadhu have multiple power rails which are controlled by
GPIOs. Add support of these power rail control through
fixed regulators. Add entry for all fixed regulators for
cardhu-a02 and a04.
The details are taken from downstream kernel.
Some points on this change are:
* Add the tps65910-LDO5 entry and make it always ON
to supply power to SDMMC. Once the sd driver support
regulator handling, this flag will be remove.
* Dropping registration of rail vdd_sdmmc1 as the gpio
is used by sdhci power-gpio. This need to fix in
sdhci driver and then need to add the registration
mechanism. Just removing power-gpio and adding fixed
regulator with this gpio is causing the sd access to
fail because first probe call of this regulator fails
due to non-available of parent and so it calls
gpio_free() which disable the pins in gpio mode make
pin output to LOW causes power to OFF. In probe retry,
it got success and it powered-on but it again need to
do again numeration of card here.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Diffstat (limited to 'arch/arm/boot/dts/tegra30-cardhu-a02.dts')
| -rw-r--r-- | arch/arm/boot/dts/tegra30-cardhu-a02.dts | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/tegra30-cardhu-a02.dts b/arch/arm/boot/dts/tegra30-cardhu-a02.dts index dd870b7f188b..dd4222f00eca 100644 --- a/arch/arm/boot/dts/tegra30-cardhu-a02.dts +++ b/arch/arm/boot/dts/tegra30-cardhu-a02.dts @@ -7,5 +7,81 @@ / { model = "NVIDIA Tegra30 Cardhu A02 evaluation board"; compatible = "nvidia,cardhu-a02", "nvidia,cardhu", "nvidia,tegra30"; + + regulators { + compatible = "simple-bus"; + #address-cells = <1>; + #size-cells = <0>; + + ddr_reg: regulator@100 { + compatible = "regulator-fixed"; + reg = <100>; + regulator-name = "vdd_ddr"; + regulator-min-microvolt = <1500000>; + regulator-max-microvolt = <1500000>; + regulator-always-on; + regulator-boot-on; + enable-active-high; + gpio = <&pmic 6 0>; + }; + + sys_3v3_reg: regulator@101 { + compatible = "regulator-fixed"; + reg = <101>; + regulator-name = "sys_3v3"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + regulator-boot-on; + enable-active-high; + gpio = <&pmic 7 0>; + }; + + usb1_vbus_reg: regulator@102 { + compatible = "regulator-fixed"; + reg = <102>; + regulator-name = "usb1_vbus"; + regulator-min-microvolt = <5000000>; + regulator-max-microvolt = <5000000>; + enable-active-high; + gpio = <&gpio 68 0>; /* GPIO PI4 */ + gpio-open-drain; + vin-supply = <&vdd_5v0_reg>; + }; + + usb3_vbus_reg: regulator@103 { + compatible = "regulator-fixed"; + reg = <103>; + regulator-name = "usb3_vbus"; + regulator-min-microvolt = <5000000>; + regulator-max-microvolt = <5000000>; + enable-active-high; + gpio = <&gpio 63 0>; /* GPIO PH7 */ + gpio-open-drain; + vin-supply = <&vdd_5v0_reg>; + }; + + vdd_5v0_reg: regulator@104 { + compatible = "regulator-fixed"; + reg = <104>; + regulator-name = "5v0"; + regulator-min-microvolt = <5000000>; + regulator-max-microvolt = <5000000>; + enable-active-high; + gpio = <&pmic 2 0>; + }; + + vdd_bl_reg: regulator@105 { + compatible = "regulator-fixed"; + reg = <105>; + regulator-name = "vdd_bl"; + regulator-min-microvolt = <5000000>; + regulator-max-microvolt = <5000000>; + regulator-always-on; + regulator-boot-on; + enable-active-high; + gpio = <&gpio 83 0>; /* GPIO PK3 */ + }; + }; }; |