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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-05 07:56:48 +07:00
fa4a925230
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>
99 lines
2.4 KiB
Plaintext
99 lines
2.4 KiB
Plaintext
/dts-v1/;
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/include/ "tegra30-cardhu.dtsi"
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/* This dts file support the cardhu A04 and later versions of board */
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/ {
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model = "NVIDIA Tegra30 Cardhu A04 (A05, A06, A07) evaluation board";
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compatible = "nvidia,cardhu-a04", "nvidia,cardhu", "nvidia,tegra30";
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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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ddr_reg: regulator@100 {
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compatible = "regulator-fixed";
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regulator-name = "ddr";
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reg = <100>;
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regulator-min-microvolt = <1500000>;
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regulator-max-microvolt = <1500000>;
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regulator-always-on;
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regulator-boot-on;
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enable-active-high;
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gpio = <&pmic 7 0>;
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};
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sys_3v3_reg: regulator@101 {
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compatible = "regulator-fixed";
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reg = <101>;
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regulator-name = "sys_3v3";
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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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regulator-boot-on;
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enable-active-high;
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gpio = <&pmic 6 0>;
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};
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usb1_vbus_reg: regulator@102 {
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compatible = "regulator-fixed";
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reg = <102>;
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regulator-name = "usb1_vbus";
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regulator-min-microvolt = <5000000>;
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regulator-max-microvolt = <5000000>;
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enable-active-high;
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gpio = <&gpio 238 0>; /* GPIO PDD6 */
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gpio-open-drain;
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vin-supply = <&vdd_5v0_reg>;
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};
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usb3_vbus_reg: regulator@103 {
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compatible = "regulator-fixed";
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reg = <103>;
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regulator-name = "usb3_vbus";
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regulator-min-microvolt = <5000000>;
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regulator-max-microvolt = <5000000>;
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enable-active-high;
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gpio = <&gpio 236 0>; /* GPIO PDD4 */
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gpio-open-drain;
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vin-supply = <&vdd_5v0_reg>;
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};
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vdd_5v0_reg: regulator@104 {
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compatible = "regulator-fixed";
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reg = <104>;
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regulator-name = "5v0";
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regulator-min-microvolt = <5000000>;
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regulator-max-microvolt = <5000000>;
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enable-active-high;
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gpio = <&pmic 8 0>;
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};
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vdd_bl_reg: regulator@105 {
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compatible = "regulator-fixed";
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reg = <105>;
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regulator-name = "vdd_bl";
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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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regulator-boot-on;
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enable-active-high;
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gpio = <&gpio 234 0>; /* GPIO PDD2 */
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};
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vdd_bl2_reg: regulator@106 {
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compatible = "regulator-fixed";
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reg = <106>;
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regulator-name = "vdd_bl2";
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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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regulator-boot-on;
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enable-active-high;
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gpio = <&gpio 232 0>; /* GPIO PDD0 */
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};
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};
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};
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