[PATCH v2 3/3] ARM: tegra: cardhu: add dt entry for fixed regulators

From: Laxman Dewangan
Date: Thu Aug 09 2012 - 07:16:12 EST

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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@xxxxxxxxxx>
---
Changes from V1-->V2:
- Remove the vdd_sdmmc1 regulator registration.
- Fix the pex_hvdd_3v3 regulator registration.
- Set panel regulator to be always on.

arch/arm/boot/dts/tegra30-cardhu-a02.dts | 76 +++++++++++++++
arch/arm/boot/dts/tegra30-cardhu-a04.dts | 88 ++++++++++++++++++
arch/arm/boot/dts/tegra30-cardhu.dtsi | 147 ++++++++++++++++++++++++++++++
3 files changed, 311 insertions(+), 0 deletions(-)

diff --git a/arch/arm/boot/dts/tegra30-cardhu-a02.dts b/arch/arm/boot/dts/tegra30-cardhu-a02.dts
index dd870b7..dd4222f 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 */
+ };
+ };
};

diff --git a/arch/arm/boot/dts/tegra30-cardhu-a04.dts b/arch/arm/boot/dts/tegra30-cardhu-a04.dts
index a4cae6c..0828f09 100644
--- a/arch/arm/boot/dts/tegra30-cardhu-a04.dts
+++ b/arch/arm/boot/dts/tegra30-cardhu-a04.dts
@@ -7,4 +7,92 @@
/ {
model = "NVIDIA Tegra30 Cardhu A04 (A05, A06, A07) evaluation board";
compatible = "nvidia,cardhu-a04", "nvidia,cardhu", "nvidia,tegra30";
+
+ regulators {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ddr_reg: regulator@100 {
+ compatible = "regulator-fixed";
+ regulator-name = "ddr";
+ reg = <100>;
+ regulator-min-microvolt = <1500000>;
+ regulator-max-microvolt = <1500000>;
+ regulator-always-on;
+ regulator-boot-on;
+ enable-active-high;
+ gpio = <&pmic 7 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 6 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 238 0>; /* GPIO PDD6 */
+ 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 236 0>; /* GPIO PDD4 */
+ 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 8 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 234 0>; /* GPIO PDD2 */
+ };
+
+ vdd_bl2_reg: regulator@106 {
+ compatible = "regulator-fixed";
+ reg = <106>;
+ regulator-name = "vdd_bl2";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ regulator-always-on;
+ regulator-boot-on;
+ enable-active-high;
+ gpio = <&gpio 232 0>; /* GPIO PDD0 */
+ };
+ };
};
diff --git a/arch/arm/boot/dts/tegra30-cardhu.dtsi b/arch/arm/boot/dts/tegra30-cardhu.dtsi
index ba38527..4794693 100644
--- a/arch/arm/boot/dts/tegra30-cardhu.dtsi
+++ b/arch/arm/boot/dts/tegra30-cardhu.dtsi
@@ -162,6 +162,7 @@
vcc1-supply = <&vdd_ac_bat_reg>;
vcc2-supply = <&vdd_ac_bat_reg>;
vcc3-supply = <&vio_reg>;
+ vcc4-supply = <&vdd_5v0_reg>;
vcc5-supply = <&vdd_ac_bat_reg>;
vcc6-supply = <&vdd2_reg>;
vcc7-supply = <&vdd_ac_bat_reg>;
@@ -234,6 +235,15 @@
regulator-always-on;
};

+ ldo5_reg: regulator@8 {
+ reg = <8>;
+ regulator-compatible = "ldo5";
+ regulator-name = "vddio_sdmmc,avdd_vdac";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+
ldo6_reg: regulator@9 {
reg = <9>;
regulator-compatible = "ldo6";
@@ -300,6 +310,143 @@
regulator-max-microvolt = <5000000>;
regulator-always-on;
};
+
+ cam_1v8_reg: regulator@1 {
+ compatible = "regulator-fixed";
+ reg = <1>;
+ regulator-name = "cam_1v8";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ enable-active-high;
+ gpio = <&gpio 220 0>; /* gpio PBB4 */
+ vin-supply = <&vio_reg>;
+ };
+
+ cp_5v_reg: regulator@2 {
+ compatible = "regulator-fixed";
+ reg = <2>;
+ regulator-name = "cp_5v";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ regulator-boot-on;
+ regulator-always-on;
+ enable-active-high;
+ gpio = <&pmic 0 0>; /* PMIC TPS65911 GPIO0 */
+ };
+
+ emmc_3v3_reg: regulator@3 {
+ compatible = "regulator-fixed";
+ reg = <3>;
+ regulator-name = "emmc_3v3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ regulator-boot-on;
+ enable-active-high;
+ gpio = <&gpio 25 0>; /* gpio PD1 */
+ vin-supply = <&sys_3v3_reg>;
+ };
+
+ modem_3v3_reg: regulator@4 {
+ compatible = "regulator-fixed";
+ reg = <4>;
+ regulator-name = "modem_3v3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ enable-active-high;
+ gpio = <&gpio 30 0>; /* gpio PD6 */
+ };
+
+ pex_hvdd_3v3_reg: regulator@5 {
+ compatible = "regulator-fixed";
+ reg = <5>;
+ regulator-name = "pex_hvdd_3v3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ enable-active-high;
+ gpio = <&gpio 95 0>; /* gpio PL7 */
+ vin-supply = <&sys_3v3_reg>;
+ };
+
+ vdd_cam1_ldo_reg: regulator@6 {
+ compatible = "regulator-fixed";
+ reg = <6>;
+ regulator-name = "vdd_cam1_ldo";
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <2800000>;
+ enable-active-high;
+ gpio = <&gpio 142 0>; /* gpio PR6 */
+ vin-supply = <&sys_3v3_reg>;
+ };
+
+ vdd_cam2_ldo_reg: regulator@7 {
+ compatible = "regulator-fixed";
+ reg = <7>;
+ regulator-name = "vdd_cam2_ldo";
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <2800000>;
+ enable-active-high;
+ gpio = <&gpio 143 0>; /* gpio PR7 */
+ vin-supply = <&sys_3v3_reg>;
+ };
+
+ vdd_cam3_ldo_reg: regulator@8 {
+ compatible = "regulator-fixed";
+ reg = <8>;
+ regulator-name = "vdd_cam3_ldo";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ enable-active-high;
+ gpio = <&gpio 144 0>; /* gpio PS0 */
+ vin-supply = <&sys_3v3_reg>;
+ };
+
+ vdd_com_reg: regulator@9 {
+ compatible = "regulator-fixed";
+ reg = <9>;
+ regulator-name = "vdd_com";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ enable-active-high;
+ gpio = <&gpio 24 0>; /* gpio PD0 */
+ vin-supply = <&sys_3v3_reg>;
+ };
+
+ vdd_fuse_3v3_reg: regulator@10 {
+ compatible = "regulator-fixed";
+ reg = <10>;
+ regulator-name = "vdd_fuse_3v3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ enable-active-high;
+ gpio = <&gpio 94 0>; /* gpio PL6 */
+ vin-supply = <&sys_3v3_reg>;
+ };
+
+ vdd_pnl1_reg: regulator@11 {
+ compatible = "regulator-fixed";
+ reg = <11>;
+ regulator-name = "vdd_pnl1";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ regulator-boot-on;
+ enable-active-high;
+ gpio = <&gpio 92 0>; /* gpio PL4 */
+ vin-supply = <&sys_3v3_reg>;
+ };
+
+ vdd_vid_reg: regulator@12 {
+ compatible = "regulator-fixed";
+ reg = <12>;
+ regulator-name = "vddio_vid";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ enable-active-high;
+ gpio = <&gpio 152 0>; /* GPIO PT0 */
+ gpio-open-drain;
+ vin-supply = <&vdd_5v0_reg>;
+ };
};

sound {
--
1.7.1.1

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