mirror of
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synced 2024-12-18 18:23:53 +08:00
ARM: dt: tegra: harmony: add regulators
Harmony uses a TPS6586x regulator. Instantiate this, and hook up a
couple of fixed GPIO-controlled regulators too.
Based on Ventana regulator patch by Stephen Warren <swarren@nvidia.com>
and converted to Harmony.
swarren made the following changes:
* Added ldo0 regulator configuration to device tree, and updated
board-harmony-pcie.c for the new regulator name.
* Fixed vdd_1v05's voltage from 10.5V to 1.05V.
* Modified board-harmony-pcie.c to obtain the en_vdd_1v05 GPIO number at
run-time from device tree instead of hard-coding it.
* Removed board-harmony{-power.c,.h} now that they're unused.
* Disabled vdd_1v05 regulator; the code in board-harmony-pcie.c hijacks
this GPIO for now. This will be fixed when the PCIe driver is re-
written as a driver. The code can't regulator_get("vdd_1v05") right
now, because the vdd_1v05 regulator's probe gets deferred due to its
supply being the PMIC, which gets probed after the regulator the first
time around, and this dependency is only resolved by repeated probing,
which happens when deferred_probe_initcall() is called, which happens
in a late initcall, whose runtime order relative to harmony_pcie_init()
is undefined, since that's also called from a late initcall.
* Removed unused harmony_pcie_initcall().
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
This commit is contained in:
Laxman Dewangan
Stephen Warren
parent
bb25af8167
commit
3cc404de24
@ -275,6 +275,158 @@
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i2c@7000d000 {
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status = "okay";
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clock-frequency = <400000>;
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pmic: tps6586x@34 {
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compatible = "ti,tps6586x";
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reg = <0x34>;
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interrupts = <0 86 0x4>;
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#gpio-cells = <2>;
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gpio-controller;
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sys-supply = <&vdd_5v0_reg>;
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vin-sm0-supply = <&sys_reg>;
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vin-sm1-supply = <&sys_reg>;
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vin-sm2-supply = <&sys_reg>;
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vinldo01-supply = <&sm2_reg>;
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vinldo23-supply = <&sm2_reg>;
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vinldo4-supply = <&sm2_reg>;
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vinldo678-supply = <&sm2_reg>;
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vinldo9-supply = <&sm2_reg>;
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regulators {
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#address-cells = <1>;
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#size-cells = <0>;
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sys_reg: regulator@0 {
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reg = <0>;
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regulator-compatible = "sys";
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regulator-name = "vdd_sys";
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regulator-always-on;
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};
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regulator@1 {
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reg = <1>;
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regulator-compatible = "sm0";
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regulator-name = "vdd_sm0,vdd_core";
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regulator-min-microvolt = <1200000>;
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regulator-max-microvolt = <1200000>;
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regulator-always-on;
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};
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regulator@2 {
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reg = <2>;
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regulator-compatible = "sm1";
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regulator-name = "vdd_sm1,vdd_cpu";
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regulator-min-microvolt = <1000000>;
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regulator-max-microvolt = <1000000>;
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regulator-always-on;
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};
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sm2_reg: regulator@3 {
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reg = <3>;
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regulator-compatible = "sm2";
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regulator-name = "vdd_sm2,vin_ldo*";
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regulator-min-microvolt = <3700000>;
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regulator-max-microvolt = <3700000>;
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regulator-always-on;
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};
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regulator@4 {
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reg = <4>;
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regulator-compatible = "ldo0";
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regulator-name = "vdd_ldo0,vddio_pex_clk";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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};
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regulator@5 {
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reg = <5>;
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regulator-compatible = "ldo1";
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regulator-name = "vdd_ldo1,avdd_pll*";
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regulator-min-microvolt = <1100000>;
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regulator-max-microvolt = <1100000>;
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regulator-always-on;
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};
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regulator@6 {
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reg = <6>;
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regulator-compatible = "ldo2";
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regulator-name = "vdd_ldo2,vdd_rtc";
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regulator-min-microvolt = <1200000>;
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regulator-max-microvolt = <1200000>;
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};
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regulator@7 {
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reg = <7>;
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regulator-compatible = "ldo3";
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regulator-name = "vdd_ldo3,avdd_usb*";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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regulator-always-on;
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};
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regulator@8 {
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reg = <8>;
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regulator-compatible = "ldo4";
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regulator-name = "vdd_ldo4,avdd_osc,vddio_sys";
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regulator-min-microvolt = <1800000>;
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regulator-max-microvolt = <1800000>;
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regulator-always-on;
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};
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regulator@9 {
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reg = <9>;
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regulator-compatible = "ldo5";
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regulator-name = "vdd_ldo5,vcore_mmc";
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regulator-min-microvolt = <2850000>;
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regulator-max-microvolt = <2850000>;
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regulator-always-on;
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};
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regulator@10 {
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reg = <10>;
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regulator-compatible = "ldo6";
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regulator-name = "vdd_ldo6,avdd_vdac";
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regulator-min-microvolt = <1800000>;
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regulator-max-microvolt = <1800000>;
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};
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regulator@11 {
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reg = <11>;
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regulator-compatible = "ldo7";
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regulator-name = "vdd_ldo7,avdd_hdmi,vdd_fuse";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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};
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regulator@12 {
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reg = <12>;
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regulator-compatible = "ldo8";
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regulator-name = "vdd_ldo8,avdd_hdmi_pll";
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regulator-min-microvolt = <1800000>;
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regulator-max-microvolt = <1800000>;
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};
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regulator@13 {
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reg = <13>;
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regulator-compatible = "ldo9";
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regulator-name = "vdd_ldo9,avdd_2v85,vdd_ddr_rx";
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regulator-min-microvolt = <2850000>;
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regulator-max-microvolt = <2850000>;
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regulator-always-on;
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};
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regulator@14 {
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reg = <14>;
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regulator-compatible = "ldo_rtc";
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regulator-name = "vdd_rtc_out,vdd_cell";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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regulator-always-on;
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};
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};
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};
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};
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pmc {
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@ -310,6 +462,72 @@
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bus-width = <8>;
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};
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regulators {
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compatible = "simple-bus";
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#address-cells = <1>;
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#size-cells = <0>;
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vdd_5v0_reg: regulator@0 {
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compatible = "regulator-fixed";
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reg = <0>;
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regulator-name = "vdd_5v0";
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regulator-min-microvolt = <5000000>;
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regulator-max-microvolt = <5000000>;
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regulator-always-on;
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};
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regulator@1 {
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compatible = "regulator-fixed";
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reg = <1>;
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regulator-name = "vdd_1v5";
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regulator-min-microvolt = <1500000>;
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regulator-max-microvolt = <1500000>;
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gpio = <&pmic 0 0>;
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};
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regulator@2 {
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compatible = "regulator-fixed";
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reg = <2>;
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regulator-name = "vdd_1v2";
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regulator-min-microvolt = <1200000>;
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regulator-max-microvolt = <1200000>;
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gpio = <&pmic 1 0>;
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enable-active-high;
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};
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regulator@3 {
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compatible = "regulator-fixed";
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reg = <3>;
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regulator-name = "vdd_1v05";
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regulator-min-microvolt = <1050000>;
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regulator-max-microvolt = <1050000>;
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gpio = <&pmic 2 0>;
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enable-active-high;
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/* Hack until board-harmony-pcie.c is removed */
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status = "disabled";
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};
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regulator@4 {
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compatible = "regulator-fixed";
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reg = <4>;
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regulator-name = "vdd_pnl";
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regulator-min-microvolt = <2800000>;
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regulator-max-microvolt = <2800000>;
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gpio = <&gpio 22 0>; /* gpio PC6 */
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enable-active-high;
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};
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regulator@5 {
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compatible = "regulator-fixed";
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reg = <5>;
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regulator-name = "vdd_bl";
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regulator-min-microvolt = <2800000>;
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regulator-max-microvolt = <2800000>;
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gpio = <&gpio 176 0>; /* gpio PW0 */
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enable-active-high;
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};
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};
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sound {
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compatible = "nvidia,tegra-audio-wm8903-harmony",
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"nvidia,tegra-audio-wm8903";
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@ -27,6 +27,5 @@ obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += board-dt-tegra20.o
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obj-$(CONFIG_ARCH_TEGRA_3x_SOC) += board-dt-tegra30.o
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obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += board-harmony-pcie.o
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obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += board-harmony-power.o
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obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += board-paz00.o
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@ -42,7 +42,6 @@
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#include <mach/irqs.h>
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#include "board.h"
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#include "board-harmony.h"
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#include "clock.h"
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#include "devices.h"
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@ -108,15 +107,9 @@ static void __init trimslice_init(void)
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static void __init harmony_init(void)
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{
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#ifdef CONFIG_TEGRA_PCI
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int ret;
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ret = harmony_regulator_init();
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if (ret) {
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pr_err("harmony_regulator_init() failed: %d\n", ret);
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return;
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}
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#ifdef CONFIG_TEGRA_PCI
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ret = harmony_pcie_init();
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if (ret)
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pr_err("harmony_pcie_init() failed: %d\n", ret);
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@ -18,35 +18,57 @@
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#include <linux/kernel.h>
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#include <linux/gpio.h>
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#include <linux/err.h>
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#include <linux/of_gpio.h>
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#include <linux/regulator/consumer.h>
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#include <asm/mach-types.h>
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#include "board.h"
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#include "board-harmony.h"
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#ifdef CONFIG_TEGRA_PCI
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int __init harmony_pcie_init(void)
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{
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struct device_node *np;
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int en_vdd_1v05;
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struct regulator *regulator = NULL;
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int err;
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err = gpio_request(TEGRA_GPIO_EN_VDD_1V05_GPIO, "EN_VDD_1V05");
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if (err)
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np = of_find_node_by_path("/regulators/regulator@3");
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if (!np) {
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pr_err("%s: of_find_node_by_path failed\n", __func__);
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return -ENODEV;
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}
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en_vdd_1v05 = of_get_named_gpio(np, "gpio", 0);
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if (en_vdd_1v05 < 0) {
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pr_err("%s: of_get_named_gpio failed: %d\n", __func__,
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en_vdd_1v05);
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return en_vdd_1v05;
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}
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err = gpio_request(en_vdd_1v05, "EN_VDD_1V05");
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if (err) {
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pr_err("%s: gpio_request failed: %d\n", __func__, err);
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return err;
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}
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gpio_direction_output(TEGRA_GPIO_EN_VDD_1V05_GPIO, 1);
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gpio_direction_output(en_vdd_1v05, 1);
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regulator = regulator_get(NULL, "pex_clk");
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if (IS_ERR_OR_NULL(regulator))
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regulator = regulator_get(NULL, "vdd_ldo0,vddio_pex_clk");
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if (IS_ERR_OR_NULL(regulator)) {
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pr_err("%s: regulator_get failed: %d\n", __func__,
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(int)PTR_ERR(regulator));
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goto err_reg;
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}
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regulator_enable(regulator);
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err = tegra_pcie_init(true, true);
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if (err)
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if (err) {
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pr_err("%s: tegra_pcie_init failed: %d\n", __func__, err);
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goto err_pcie;
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}
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return 0;
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@ -54,20 +76,9 @@ err_pcie:
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regulator_disable(regulator);
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regulator_put(regulator);
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err_reg:
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gpio_free(TEGRA_GPIO_EN_VDD_1V05_GPIO);
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gpio_free(en_vdd_1v05);
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return err;
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}
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static int __init harmony_pcie_initcall(void)
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{
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if (!machine_is_harmony())
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return 0;
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return harmony_pcie_init();
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}
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/* PCI should be initialized after I2C, mfd and regulators */
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subsys_initcall_sync(harmony_pcie_initcall);
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#endif
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@ -1,152 +0,0 @@
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/*
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* Copyright (C) 2010 NVIDIA, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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* 02111-1307, USA
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*/
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#include <linux/i2c.h>
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#include <linux/platform_device.h>
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#include <linux/gpio.h>
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#include <linux/regulator/machine.h>
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#include <linux/regulator/fixed.h>
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#include <linux/mfd/tps6586x.h>
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#include <linux/of.h>
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#include <linux/of_i2c.h>
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#include <asm/mach-types.h>
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#include <mach/irqs.h>
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#include "board-harmony.h"
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static struct regulator_consumer_supply tps658621_ldo0_supply[] = {
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REGULATOR_SUPPLY("pex_clk", NULL),
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};
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static struct regulator_init_data ldo0_data = {
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.supply_regulator = "vdd_sm2",
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.constraints = {
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.name = "vdd_ldo0",
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.min_uV = 3300 * 1000,
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.max_uV = 3300 * 1000,
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.valid_modes_mask = (REGULATOR_MODE_NORMAL |
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REGULATOR_MODE_STANDBY),
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.valid_ops_mask = (REGULATOR_CHANGE_MODE |
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REGULATOR_CHANGE_STATUS |
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REGULATOR_CHANGE_VOLTAGE),
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.apply_uV = 1,
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},
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.num_consumer_supplies = ARRAY_SIZE(tps658621_ldo0_supply),
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.consumer_supplies = tps658621_ldo0_supply,
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};
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#define HARMONY_REGULATOR_INIT(_id, _name, _supply, _minmv, _maxmv, _on)\
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static struct regulator_init_data _id##_data = { \
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.supply_regulator = _supply, \
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.constraints = { \
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.name = _name, \
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.min_uV = (_minmv)*1000, \
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.max_uV = (_maxmv)*1000, \
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.valid_modes_mask = (REGULATOR_MODE_NORMAL | \
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REGULATOR_MODE_STANDBY), \
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.valid_ops_mask = (REGULATOR_CHANGE_MODE | \
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REGULATOR_CHANGE_STATUS | \
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REGULATOR_CHANGE_VOLTAGE), \
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.always_on = _on, \
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}, \
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}
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static struct regulator_init_data sys_data = {
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.supply_regulator = "vdd_5v0",
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.constraints = {
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.name = "vdd_sys",
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},
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};
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HARMONY_REGULATOR_INIT(sm0, "vdd_sm0", "vdd_sys", 725, 1500, 1);
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HARMONY_REGULATOR_INIT(sm1, "vdd_sm1", "vdd_sys", 725, 1500, 1);
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HARMONY_REGULATOR_INIT(sm2, "vdd_sm2", "vdd_sys", 3000, 4550, 1);
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HARMONY_REGULATOR_INIT(ldo1, "vdd_ldo1", "vdd_sm2", 725, 1500, 1);
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HARMONY_REGULATOR_INIT(ldo2, "vdd_ldo2", "vdd_sm2", 725, 1500, 0);
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HARMONY_REGULATOR_INIT(ldo3, "vdd_ldo3", "vdd_sm2", 1250, 3300, 1);
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HARMONY_REGULATOR_INIT(ldo4, "vdd_ldo4", "vdd_sm2", 1700, 2475, 1);
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HARMONY_REGULATOR_INIT(ldo5, "vdd_ldo5", "vdd_sys", 1250, 3300, 1);
|
||||
HARMONY_REGULATOR_INIT(ldo6, "vdd_ldo6", "vdd_sm2", 1250, 3300, 0);
|
||||
HARMONY_REGULATOR_INIT(ldo7, "vdd_ldo7", "vdd_sm2", 1250, 3300, 0);
|
||||
HARMONY_REGULATOR_INIT(ldo8, "vdd_ldo8", "vdd_sm2", 1250, 3300, 0);
|
||||
HARMONY_REGULATOR_INIT(ldo9, "vdd_ldo9", "vdd_sm2", 1250, 3300, 1);
|
||||
|
||||
#define TPS_REG(_id, _data) \
|
||||
{ \
|
||||
.id = TPS6586X_ID_##_id, \
|
||||
.name = "tps6586x-regulator", \
|
||||
.platform_data = _data, \
|
||||
}
|
||||
|
||||
static struct tps6586x_subdev_info tps_devs[] = {
|
||||
TPS_REG(SYS, &sys_data),
|
||||
TPS_REG(SM_0, &sm0_data),
|
||||
TPS_REG(SM_1, &sm1_data),
|
||||
TPS_REG(SM_2, &sm2_data),
|
||||
TPS_REG(LDO_0, &ldo0_data),
|
||||
TPS_REG(LDO_1, &ldo1_data),
|
||||
TPS_REG(LDO_2, &ldo2_data),
|
||||
TPS_REG(LDO_3, &ldo3_data),
|
||||
TPS_REG(LDO_4, &ldo4_data),
|
||||
TPS_REG(LDO_5, &ldo5_data),
|
||||
TPS_REG(LDO_6, &ldo6_data),
|
||||
TPS_REG(LDO_7, &ldo7_data),
|
||||
TPS_REG(LDO_8, &ldo8_data),
|
||||
TPS_REG(LDO_9, &ldo9_data),
|
||||
};
|
||||
|
||||
static struct tps6586x_platform_data tps_platform = {
|
||||
.irq_base = TEGRA_NR_IRQS,
|
||||
.num_subdevs = ARRAY_SIZE(tps_devs),
|
||||
.subdevs = tps_devs,
|
||||
.gpio_base = HARMONY_GPIO_TPS6586X(0),
|
||||
};
|
||||
|
||||
static struct i2c_board_info __initdata harmony_regulators[] = {
|
||||
{
|
||||
I2C_BOARD_INFO("tps6586x", 0x34),
|
||||
.irq = INT_EXTERNAL_PMU,
|
||||
.platform_data = &tps_platform,
|
||||
},
|
||||
};
|
||||
|
||||
int __init harmony_regulator_init(void)
|
||||
{
|
||||
struct device_node *np;
|
||||
struct i2c_adapter *adapter;
|
||||
|
||||
regulator_register_always_on(0, "vdd_5v0",
|
||||
NULL, 0, 5000000);
|
||||
|
||||
np = of_find_node_by_path("/i2c@7000d000");
|
||||
if (np == NULL) {
|
||||
pr_err("Could not find device_node for DVC I2C\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
adapter = of_find_i2c_adapter_by_node(np);
|
||||
if (!adapter) {
|
||||
pr_err("Could not find i2c_adapter for DVC I2C\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
i2c_new_device(adapter, harmony_regulators);
|
||||
|
||||
return 0;
|
||||
}
|
||||
@ -1,28 +0,0 @@
|
||||
/*
|
||||
* arch/arm/mach-tegra/board-harmony.h
|
||||
*
|
||||
* Copyright (C) 2010 Google, Inc.
|
||||
*
|
||||
* This software is licensed under the terms of the GNU General Public
|
||||
* License version 2, as published by the Free Software Foundation, and
|
||||
* may be copied, distributed, and modified under those terms.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
*/
|
||||
|
||||
#ifndef _MACH_TEGRA_BOARD_HARMONY_H
|
||||
#define _MACH_TEGRA_BOARD_HARMONY_H
|
||||
|
||||
#include <mach/gpio-tegra.h>
|
||||
|
||||
#define HARMONY_GPIO_TPS6586X(_x_) (TEGRA_NR_GPIOS + (_x_))
|
||||
|
||||
#define TEGRA_GPIO_EN_VDD_1V05_GPIO HARMONY_GPIO_TPS6586X(2)
|
||||
|
||||
int harmony_regulator_init(void);
|
||||
|
||||
#endif
|
||||
Loading…
Reference in New Issue
Block a user