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>
hifive-unleashed-5.1
Laxman Dewangan
Stephen Warren
parent
bb25af8167
commit
3cc404de24
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@ -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