diff mbox

[v2,1/5] ARM: dts: Add Peach Pit and Pi dts entry for max77802 PMIC

Message ID 1408533593-32346-2-git-send-email-javier.martinez@collabora.co.uk (mailing list archive)
State New, archived
Headers show

Commit Message

Javier Martinez Canillas Aug. 20, 2014, 11:19 a.m. UTC 
Exynos5420 based Peach Pit and Exynos5800 based Peach Pi boards
uses a Maxim 77802 power management IC to drive regulators and
its Real Time Clock. This patch adds support for this chip.

These are the device nodes and pinctrl configuration that
are present on the Peach pit DeviceTree source file in the
the Chrome OS kernel 3.8 tree.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Tested-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
---
 arch/arm/boot/dts/exynos5420-peach-pit.dts | 372 +++++++++++++++++++++++++++++
 arch/arm/boot/dts/exynos5800-peach-pi.dts  | 372 +++++++++++++++++++++++++++++
 2 files changed, 744 insertions(+)

Comments

Doug Anderson Sept. 10, 2014, 4:42 a.m. UTC | #1 
Javier,

On Wed, Aug 20, 2014 at 4:19 AM, Javier Martinez Canillas
<javier.martinez@collabora.co.uk> wrote:
> Exynos5420 based Peach Pit and Exynos5800 based Peach Pi boards
> uses a Maxim 77802 power management IC to drive regulators and
> its Real Time Clock. This patch adds support for this chip.
>
> These are the device nodes and pinctrl configuration that
> are present on the Peach pit DeviceTree source file in the
> the Chrome OS kernel 3.8 tree.
>
> Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
> Tested-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
> ---
>  arch/arm/boot/dts/exynos5420-peach-pit.dts | 372 +++++++++++++++++++++++++++++
>  arch/arm/boot/dts/exynos5800-peach-pi.dts  | 372 +++++++++++++++++++++++++++++
>  2 files changed, 744 insertions(+)
>
> diff --git a/arch/arm/boot/dts/exynos5420-peach-pit.dts b/arch/arm/boot/dts/exynos5420-peach-pit.dts
> index ab06148..78cea4c 100644
> --- a/arch/arm/boot/dts/exynos5420-peach-pit.dts
> +++ b/arch/arm/boot/dts/exynos5420-peach-pit.dts
> @@ -11,6 +11,7 @@
>  /dts-v1/;
>  #include <dt-bindings/input/input.h>
>  #include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/interrupt-controller/irq.h>
>  #include "exynos5420.dtsi"
>
>  / {
> @@ -144,6 +145,339 @@
>         ddc = <&i2c_2>;
>  };
>
> +&hsi2c_4 {
> +       status = "okay";
> +       clock-frequency = <400000>;
> +
> +       max77802-pmic@9 {
> +               compatible = "maxim,max77802";
> +               interrupt-parent = <&gpx3>;
> +               interrupts = <1 IRQ_TYPE_NONE>;
> +               pinctrl-names = "default";
> +               pinctrl-0 = <&max77802_irq>, <&pmic_selb>,
> +                           <&pmic_dvs_1>, <&pmic_dvs_2>, <&pmic_dvs_3>;
> +               wakeup-source;
> +               reg = <0x9>;
> +               #clock-cells = <1>;

...you've actually got the 32k clock specified in a reasonable way now
(unlike our tree).

We don't have opmode or the DVFS stuff upstream yet, so makes sense
that's not here.


> +               inb1-supply = <&tps65090_dcdc2>;
> +               inb2-supply = <&tps65090_dcdc1>;
> +               inb3-supply = <&tps65090_dcdc2>;
> +               inb4-supply = <&tps65090_dcdc2>;
> +               inb5-supply = <&tps65090_dcdc1>;
> +               inb6-supply = <&tps65090_dcdc2>;
> +               inb7-supply = <&tps65090_dcdc1>;
> +               inb8-supply = <&tps65090_dcdc1>;
> +               inb9-supply = <&tps65090_dcdc1>;
> +               inb10-supply = <&tps65090_dcdc1>;
> +
> +               inl1-supply = <&buck5_reg>;
> +               inl2-supply = <&buck7_reg>;
> +               inl3-supply = <&buck9_reg>;
> +               inl4-supply = <&buck9_reg>;
> +               inl5-supply = <&buck9_reg>;
> +               inl6-supply = <&tps65090_dcdc2>;
> +               inl7-supply = <&buck9_reg>;
> +               inl9-supply = <&tps65090_dcdc2>;
> +               inl10-supply = <&buck7_reg>;

I double-checked your input supplies against schematics (since we
don't have them right in our tree).  They look right.

> +
> +               regulators {
> +                       buck1_reg: BUCK1 {
> +                               regulator-name = "vdd_mif";
> +                               regulator-min-microvolt = <800000>;
> +                               regulator-max-microvolt = <1300000>;
> +                               regulator-always-on;
> +                               regulator-boot-on;
> +                               regulator-ramp-delay = <12500>;
> +                       };
> +
> +                       buck2_reg: BUCK2 {
> +                               regulator-name = "vdd_arm";
> +                               regulator-min-microvolt = <800000>;
> +                               regulator-max-microvolt = <1500000>;
> +                               regulator-always-on;
> +                               regulator-boot-on;
> +                               regulator-ramp-delay = <12500>;
> +                       };
> +
> +                       buck3_reg: BUCK3 {
> +                               regulator-name = "vdd_int";
> +                               regulator-min-microvolt = <800000>;
> +                               regulator-max-microvolt = <1400000>;
> +                               regulator-always-on;
> +                               regulator-boot-on;
> +                               regulator-ramp-delay = <12500>;
> +                       };
> +
> +                       buck4_reg: BUCK4 {
> +                               regulator-name = "vdd_g3d";
> +                               regulator-min-microvolt = <700000>;
> +                               regulator-max-microvolt = <1400000>;
> +                               regulator-always-on;
> +                               regulator-boot-on;
> +                               regulator-ramp-delay = <12500>;
> +                       };
> +
> +                       buck5_reg: BUCK5 {
> +                               regulator-name = "vdd_1v2";
> +                               regulator-min-microvolt = <1200000>;
> +                               regulator-max-microvolt = <1200000>;
> +                               regulator-always-on;
> +                               regulator-boot-on;
> +                       };
> +
> +                       buck6_reg: BUCK6 {
> +                               regulator-name = "vdd_kfc";
> +                               regulator-min-microvolt = <800000>;
> +                               regulator-max-microvolt = <1500000>;
> +                               regulator-always-on;
> +                               regulator-boot-on;
> +                               regulator-ramp-delay = <12500>;
> +                       };
> +
> +                       buck7_reg: BUCK7 {
> +                               regulator-name = "vdd_1v35";
> +                               regulator-min-microvolt = <1350000>;
> +                               regulator-max-microvolt = <1350000>;
> +                               regulator-always-on;
> +                               regulator-boot-on;
> +                       };
> +
> +                       buck8_reg: BUCK8 {
> +                               regulator-name = "vdd_emmc";
> +                               regulator-min-microvolt = <2850000>;
> +                               regulator-max-microvolt = <2850000>;
> +                               regulator-always-on;
> +                               regulator-boot-on;
> +                       };
> +
> +                       buck9_reg: BUCK9 {
> +                               regulator-name = "vdd_2v";
> +                               regulator-min-microvolt = <2000000>;
> +                               regulator-max-microvolt = <2000000>;
> +                               regulator-always-on;
> +                               regulator-boot-on;
> +                       };
> +
> +                       buck10_reg: BUCK10 {
> +                               regulator-name = "vdd_1v8";
> +                               regulator-min-microvolt = <1800000>;
> +                               regulator-max-microvolt = <1800000>;
> +                               regulator-always-on;
> +                               regulator-boot-on;
> +                       };
> +
> +                       ldo1_reg: LDO1 {
> +                               regulator-name = "vdd_1v0";
> +                               regulator-min-microvolt = <1000000>;
> +                               regulator-max-microvolt = <1000000>;
> +                               regulator-always-on;
> +                       };
> +
> +                       ldo2_reg: LDO2 {
> +                               regulator-name = "vdd_1v2_2";
> +                               regulator-min-microvolt = <1200000>;
> +                               regulator-max-microvolt = <1200000>;
> +                       };
> +
> +                       ldo3_reg: LDO3 {
> +                               regulator-name = "vdd_1v8_3";
> +                               regulator-min-microvolt = <1800000>;
> +                               regulator-max-microvolt = <1800000>;
> +                               regulator-always-on;
> +                       };
> +
> +                       vqmmc_sdcard: ldo4_reg: LDO4 {
> +                               regulator-name = "vdd_sd";
> +                               regulator-min-microvolt = <1800000>;
> +                               regulator-max-microvolt = <2800000>;
> +                               regulator-always-on;
> +                       };
> +
> +                       ldo5_reg: LDO5 {
> +                               regulator-name = "vdd_1v8_5";
> +                               regulator-min-microvolt = <1800000>;
> +                               regulator-max-microvolt = <1800000>;
> +                               regulator-always-on;
> +                       };
> +
> +                       ldo6_reg: LDO6 {
> +                               regulator-name = "vdd_1v8_6";
> +                               regulator-min-microvolt = <1800000>;
> +                               regulator-max-microvolt = <1800000>;
> +                               regulator-always-on;
> +                       };
> +
> +                       ldo7_reg: LDO7 {
> +                               regulator-name = "vdd_1v8_7";
> +                               regulator-min-microvolt = <1800000>;
> +                               regulator-max-microvolt = <1800000>;
> +                       };
> +
> +                       ldo8_reg: LDO8 {
> +                               regulator-name = "vdd_ldo8";
> +                               regulator-min-microvolt = <1000000>;
> +                               regulator-max-microvolt = <1000000>;
> +                               regulator-always-on;
> +                       };
> +
> +                       ldo9_reg: LDO9 {
> +                               regulator-name = "vdd_ldo9";
> +                               regulator-min-microvolt = <1800000>;
> +                               regulator-max-microvolt = <1800000>;
> +                               regulator-always-on;
> +                       };
> +
> +                       ldo10_reg: LDO10 {
> +                               regulator-name = "vdd_ldo10";
> +                               regulator-min-microvolt = <1800000>;
> +                               regulator-max-microvolt = <1800000>;
> +                               regulator-always-on;
> +                       };
> +
> +                       ldo11_reg: LDO11 {
> +                               regulator-name = "vdd_ldo11";
> +                               regulator-min-microvolt = <1800000>;
> +                               regulator-max-microvolt = <1800000>;
> +                               regulator-always-on;
> +                       };
> +
> +                       ldo12_reg: LDO12 {
> +                               regulator-name = "vdd_ldo12";
> +                               regulator-min-microvolt = <3000000>;
> +                               regulator-max-microvolt = <3000000>;
> +                               regulator-always-on;
> +                       };
> +
> +                       ldo13_reg: LDO13 {
> +                               regulator-name = "vdd_ldo13";
> +                               regulator-min-microvolt = <1800000>;
> +                               regulator-max-microvolt = <1800000>;
> +                               regulator-always-on;
> +                       };
> +
> +                       ldo14_reg: LDO14 {
> +                               regulator-name = "vdd_ldo14";
> +                               regulator-min-microvolt = <1800000>;
> +                               regulator-max-microvolt = <1800000>;
> +                               regulator-always-on;
> +                       };
> +
> +                       ldo15_reg: LDO15 {
> +                               regulator-name = "vdd_ldo15";
> +                               regulator-min-microvolt = <1000000>;
> +                               regulator-max-microvolt = <1000000>;
> +                               regulator-always-on;
> +                       };
> +
> +                       ldo17_reg: LDO17 {
> +                               regulator-name = "vdd_g3ds";
> +                               regulator-min-microvolt = <900000>;
> +                               regulator-max-microvolt = <1400000>;
> +                               regulator-always-on;
> +                       };
> +
> +                       ldo18_reg: LDO18 {
> +                               regulator-name = "ldo_18";
> +                               regulator-min-microvolt = <1800000>;
> +                               regulator-max-microvolt = <1800000>;
> +                       };
> +
> +                       ldo19_reg: LDO19 {
> +                               regulator-name = "ldo_19";
> +                               regulator-min-microvolt = <1800000>;
> +                               regulator-max-microvolt = <1800000>;
> +                       };
> +
> +                       ldo20_reg: LDO20 {
> +                               regulator-name = "ldo_20";
> +                               regulator-min-microvolt = <1800000>;
> +                               regulator-max-microvolt = <1800000>;
> +                               regulator-always-on;
> +                       };
> +
> +                       ldo21_reg: LDO21 {
> +                               regulator-name = "ldo_21";
> +                               regulator-min-microvolt = <2800000>;
> +                               regulator-max-microvolt = <2800000>;
> +                       };
> +
> +                       ldo23_reg: LDO23 {
> +                               regulator-name = "ldo_23";
> +                               regulator-min-microvolt = <3300000>;
> +                               regulator-max-microvolt = <3300000>;
> +                       };
> +                       ldo24_reg: LDO24 {
> +                               regulator-name = "ldo_24";
> +                               regulator-min-microvolt = <2800000>;
> +                               regulator-max-microvolt = <2800000>;
> +                       };
> +
> +                       ldo25_reg: LDO25 {
> +                               regulator-name = "ldo_25";
> +                               regulator-min-microvolt = <3300000>;
> +                               regulator-max-microvolt = <3300000>;
> +                       };
> +
> +                       ldo26_reg: LDO26 {
> +                               regulator-name = "ldo_26";
> +                               regulator-min-microvolt = <1200000>;
> +                               regulator-max-microvolt = <1200000>;
> +                       };
> +
> +                       ldo27_reg: LDO27 {
> +                               regulator-name = "ldo_27";
> +                               regulator-min-microvolt = <1200000>;
> +                               regulator-max-microvolt = <1200000>;
> +                       };
> +
> +                       ldo28_reg: LDO28 {
> +                               regulator-name = "ldo_28";
> +                               regulator-min-microvolt = <1800000>;
> +                               regulator-max-microvolt = <1800000>;
> +                       };
> +
> +                       ldo29_reg: LDO29 {
> +                               regulator-name = "ldo_29";
> +                               regulator-min-microvolt = <1800000>;
> +                               regulator-max-microvolt = <1800000>;
> +                       };
> +
> +                       ldo30_reg: LDO30 {
> +                               regulator-name = "vdd_mifs";
> +                               regulator-min-microvolt = <1000000>;
> +                               regulator-max-microvolt = <1000000>;
> +                               regulator-always-on;
> +                       };
> +
> +                       ldo32_reg: LDO32 {
> +                               regulator-name = "ldo_32";
> +                               regulator-min-microvolt = <3000000>;
> +                               regulator-max-microvolt = <3000000>;
> +                       };
> +
> +                       ldo33_reg: LDO33 {
> +                               regulator-name = "ldo_33";
> +                               regulator-min-microvolt = <2800000>;
> +                               regulator-max-microvolt = <2800000>;
> +                       };
> +
> +                       ldo34_reg: LDO34 {
> +                               regulator-name = "ldo_34";
> +                               regulator-min-microvolt = <3000000>;
> +                               regulator-max-microvolt = <3000000>;
> +                       };
> +
> +                       ldo35_reg: LDO35 {
> +                               regulator-name = "ldo_35";
> +                               regulator-min-microvolt = <1200000>;
> +                               regulator-max-microvolt = <1200000>;
> +                               inl2-supply = <&buck7_reg>;

Is this a typo?  Shouldn't supplies be specified at the top?


Other than that, you can add my Reviewed-by.
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Javier Martinez Canillas Sept. 10, 2014, 8:59 a.m. UTC | #2 
Hello Doug,

On 09/10/2014 06:42 AM, Doug Anderson wrote:
>> +
>> +                       ldo35_reg: LDO35 {
>> +                               regulator-name = "ldo_35";
>> +                               regulator-min-microvolt = <1200000>;
>> +                               regulator-max-microvolt = <1200000>;
>> +                               inl2-supply = <&buck7_reg>;
> 
> Is this a typo?  Shouldn't supplies be specified at the top?
>

Yes it is a left over from a previous attempt. The first time I looked at the
DT binding doc to see how parent supplies should be defined, the example said:

        xyzreg: regulator@0 {
                regulator-min-microvolt = <1000000>;
                regulator-max-microvolt = <2500000>;
                regulator-always-on;
                vin-supply = <&vin>;
        };

but that didn't work for me since the parent supplies are not parsed in
of_get_regulation_constraints() [0] but in regulator_register() [1] by calling
regulator_dev_lookup() passing the parent device.

So then I looked at other DTS and found that the supplies where indeed defined
on the top as properties of the "regulators" parent node so that's what I
used. I missed to remove the supply for this regulator, thanks a lot for noticing.

BTW, Documentation/devicetree/bindings/regulator/regulator.txt should be
changed to reflect that the supplies should not be defined in the regulator
node but in the parent node but that is unrelated to this patch of course.

> 
> Other than that, you can add my Reviewed-by.
> 

Best regards,
Javier

[0]: http://lxr.free-electrons.com/source/drivers/regulator/of_regulator.c#L19
[1]: http://lxr.free-electrons.com/source/drivers/regulator/core.c#L3506
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diff mbox

Patch

diff --git a/arch/arm/boot/dts/exynos5420-peach-pit.dts b/arch/arm/boot/dts/exynos5420-peach-pit.dts
index ab06148..78cea4c 100644
--- a/arch/arm/boot/dts/exynos5420-peach-pit.dts
+++ b/arch/arm/boot/dts/exynos5420-peach-pit.dts
@@ -11,6 +11,7 @@ 
 /dts-v1/;
 #include <dt-bindings/input/input.h>
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
 #include "exynos5420.dtsi"
 
 / {
@@ -144,6 +145,339 @@ 
 	ddc = <&i2c_2>;
 };
 
+&hsi2c_4 {
+	status = "okay";
+	clock-frequency = <400000>;
+
+	max77802-pmic@9 {
+		compatible = "maxim,max77802";
+		interrupt-parent = <&gpx3>;
+		interrupts = <1 IRQ_TYPE_NONE>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&max77802_irq>, <&pmic_selb>,
+			    <&pmic_dvs_1>, <&pmic_dvs_2>, <&pmic_dvs_3>;
+		wakeup-source;
+		reg = <0x9>;
+		#clock-cells = <1>;
+
+		inb1-supply = <&tps65090_dcdc2>;
+		inb2-supply = <&tps65090_dcdc1>;
+		inb3-supply = <&tps65090_dcdc2>;
+		inb4-supply = <&tps65090_dcdc2>;
+		inb5-supply = <&tps65090_dcdc1>;
+		inb6-supply = <&tps65090_dcdc2>;
+		inb7-supply = <&tps65090_dcdc1>;
+		inb8-supply = <&tps65090_dcdc1>;
+		inb9-supply = <&tps65090_dcdc1>;
+		inb10-supply = <&tps65090_dcdc1>;
+
+		inl1-supply = <&buck5_reg>;
+		inl2-supply = <&buck7_reg>;
+		inl3-supply = <&buck9_reg>;
+		inl4-supply = <&buck9_reg>;
+		inl5-supply = <&buck9_reg>;
+		inl6-supply = <&tps65090_dcdc2>;
+		inl7-supply = <&buck9_reg>;
+		inl9-supply = <&tps65090_dcdc2>;
+		inl10-supply = <&buck7_reg>;
+
+		regulators {
+			buck1_reg: BUCK1 {
+				regulator-name = "vdd_mif";
+				regulator-min-microvolt = <800000>;
+				regulator-max-microvolt = <1300000>;
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-ramp-delay = <12500>;
+			};
+
+			buck2_reg: BUCK2 {
+				regulator-name = "vdd_arm";
+				regulator-min-microvolt = <800000>;
+				regulator-max-microvolt = <1500000>;
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-ramp-delay = <12500>;
+			};
+
+			buck3_reg: BUCK3 {
+				regulator-name = "vdd_int";
+				regulator-min-microvolt = <800000>;
+				regulator-max-microvolt = <1400000>;
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-ramp-delay = <12500>;
+			};
+
+			buck4_reg: BUCK4 {
+				regulator-name = "vdd_g3d";
+				regulator-min-microvolt = <700000>;
+				regulator-max-microvolt = <1400000>;
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-ramp-delay = <12500>;
+			};
+
+			buck5_reg: BUCK5 {
+				regulator-name = "vdd_1v2";
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <1200000>;
+				regulator-always-on;
+				regulator-boot-on;
+			};
+
+			buck6_reg: BUCK6 {
+				regulator-name = "vdd_kfc";
+				regulator-min-microvolt = <800000>;
+				regulator-max-microvolt = <1500000>;
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-ramp-delay = <12500>;
+			};
+
+			buck7_reg: BUCK7 {
+				regulator-name = "vdd_1v35";
+				regulator-min-microvolt = <1350000>;
+				regulator-max-microvolt = <1350000>;
+				regulator-always-on;
+				regulator-boot-on;
+			};
+
+			buck8_reg: BUCK8 {
+				regulator-name = "vdd_emmc";
+				regulator-min-microvolt = <2850000>;
+				regulator-max-microvolt = <2850000>;
+				regulator-always-on;
+				regulator-boot-on;
+			};
+
+			buck9_reg: BUCK9 {
+				regulator-name = "vdd_2v";
+				regulator-min-microvolt = <2000000>;
+				regulator-max-microvolt = <2000000>;
+				regulator-always-on;
+				regulator-boot-on;
+			};
+
+			buck10_reg: BUCK10 {
+				regulator-name = "vdd_1v8";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-always-on;
+				regulator-boot-on;
+			};
+
+			ldo1_reg: LDO1 {
+				regulator-name = "vdd_1v0";
+				regulator-min-microvolt = <1000000>;
+				regulator-max-microvolt = <1000000>;
+				regulator-always-on;
+			};
+
+			ldo2_reg: LDO2 {
+				regulator-name = "vdd_1v2_2";
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <1200000>;
+			};
+
+			ldo3_reg: LDO3 {
+				regulator-name = "vdd_1v8_3";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-always-on;
+			};
+
+			vqmmc_sdcard: ldo4_reg: LDO4 {
+				regulator-name = "vdd_sd";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <2800000>;
+				regulator-always-on;
+			};
+
+			ldo5_reg: LDO5 {
+				regulator-name = "vdd_1v8_5";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-always-on;
+			};
+
+			ldo6_reg: LDO6 {
+				regulator-name = "vdd_1v8_6";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-always-on;
+			};
+
+			ldo7_reg: LDO7 {
+				regulator-name = "vdd_1v8_7";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+			};
+
+			ldo8_reg: LDO8 {
+				regulator-name = "vdd_ldo8";
+				regulator-min-microvolt = <1000000>;
+				regulator-max-microvolt = <1000000>;
+				regulator-always-on;
+			};
+
+			ldo9_reg: LDO9 {
+				regulator-name = "vdd_ldo9";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-always-on;
+			};
+
+			ldo10_reg: LDO10 {
+				regulator-name = "vdd_ldo10";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-always-on;
+			};
+
+			ldo11_reg: LDO11 {
+				regulator-name = "vdd_ldo11";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-always-on;
+			};
+
+			ldo12_reg: LDO12 {
+				regulator-name = "vdd_ldo12";
+				regulator-min-microvolt = <3000000>;
+				regulator-max-microvolt = <3000000>;
+				regulator-always-on;
+			};
+
+			ldo13_reg: LDO13 {
+				regulator-name = "vdd_ldo13";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-always-on;
+			};
+
+			ldo14_reg: LDO14 {
+				regulator-name = "vdd_ldo14";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-always-on;
+			};
+
+			ldo15_reg: LDO15 {
+				regulator-name = "vdd_ldo15";
+				regulator-min-microvolt = <1000000>;
+				regulator-max-microvolt = <1000000>;
+				regulator-always-on;
+			};
+
+			ldo17_reg: LDO17 {
+				regulator-name = "vdd_g3ds";
+				regulator-min-microvolt = <900000>;
+				regulator-max-microvolt = <1400000>;
+				regulator-always-on;
+			};
+
+			ldo18_reg: LDO18 {
+				regulator-name = "ldo_18";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+			};
+
+			ldo19_reg: LDO19 {
+				regulator-name = "ldo_19";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+			};
+
+			ldo20_reg: LDO20 {
+				regulator-name = "ldo_20";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-always-on;
+			};
+
+			ldo21_reg: LDO21 {
+				regulator-name = "ldo_21";
+				regulator-min-microvolt = <2800000>;
+				regulator-max-microvolt = <2800000>;
+			};
+
+			ldo23_reg: LDO23 {
+				regulator-name = "ldo_23";
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+			};
+			ldo24_reg: LDO24 {
+				regulator-name = "ldo_24";
+				regulator-min-microvolt = <2800000>;
+				regulator-max-microvolt = <2800000>;
+			};
+
+			ldo25_reg: LDO25 {
+				regulator-name = "ldo_25";
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+			};
+
+			ldo26_reg: LDO26 {
+				regulator-name = "ldo_26";
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <1200000>;
+			};
+
+			ldo27_reg: LDO27 {
+				regulator-name = "ldo_27";
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <1200000>;
+			};
+
+			ldo28_reg: LDO28 {
+				regulator-name = "ldo_28";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+			};
+
+			ldo29_reg: LDO29 {
+				regulator-name = "ldo_29";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+			};
+
+			ldo30_reg: LDO30 {
+				regulator-name = "vdd_mifs";
+				regulator-min-microvolt = <1000000>;
+				regulator-max-microvolt = <1000000>;
+				regulator-always-on;
+			};
+
+			ldo32_reg: LDO32 {
+				regulator-name = "ldo_32";
+				regulator-min-microvolt = <3000000>;
+				regulator-max-microvolt = <3000000>;
+			};
+
+			ldo33_reg: LDO33 {
+				regulator-name = "ldo_33";
+				regulator-min-microvolt = <2800000>;
+				regulator-max-microvolt = <2800000>;
+			};
+
+			ldo34_reg: LDO34 {
+				regulator-name = "ldo_34";
+				regulator-min-microvolt = <3000000>;
+				regulator-max-microvolt = <3000000>;
+			};
+
+			ldo35_reg: LDO35 {
+				regulator-name = "ldo_35";
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <1200000>;
+				inl2-supply = <&buck7_reg>;
+			};
+		};
+	};
+};
+
 &hsi2c_7 {
 	status = "okay";
 
@@ -269,12 +603,42 @@ 
 		samsung,pin-drv = <0>;
 	};
 
+	max77802_irq: max77802-irq {
+		samsung,pins = "gpx3-1";
+		samsung,pin-function = <0>;
+		samsung,pin-pud = <0>;
+		samsung,pin-drv = <0>;
+	};
+
 	hdmi_hpd_irq: hdmi-hpd-irq {
 		samsung,pins = "gpx3-7";
 		samsung,pin-function = <0>;
 		samsung,pin-pud = <1>;
 		samsung,pin-drv = <0>;
 	};
+
+	pmic_dvs_1: pmic-dvs-1 {
+		samsung,pins = "gpy7-6";
+		samsung,pin-function = <1>;
+		samsung,pin-pud = <0>;
+		samsung,pin-drv = <0>;
+	};
+};
+
+&pinctrl_2 {
+	pmic_dvs_2: pmic-dvs-2 {
+		samsung,pins = "gpj4-2";
+		samsung,pin-function = <1>;
+		samsung,pin-pud = <0>;
+		samsung,pin-drv = <0>;
+	};
+
+	pmic_dvs_3: pmic-dvs-3 {
+		samsung,pins = "gpj4-3";
+		samsung,pin-function = <1>;
+		samsung,pin-pud = <0>;
+		samsung,pin-drv = <0>;
+	};
 };
 
 &pinctrl_3 {
@@ -304,6 +668,14 @@ 
 		samsung,pin-pud = <0>;
 		samsung,pin-drv = <0>;
 	};
+
+	pmic_selb: pmic-selb {
+		samsung,pins = "gph0-2", "gph0-3", "gph0-4", "gph0-5",
+			       "gph0-6";
+		samsung,pin-function = <1>;
+		samsung,pin-pud = <0>;
+		samsung,pin-drv = <0>;
+	};
 };
 
 &rtc {
diff --git a/arch/arm/boot/dts/exynos5800-peach-pi.dts b/arch/arm/boot/dts/exynos5800-peach-pi.dts
index 9ae98aa..5da5052 100644
--- a/arch/arm/boot/dts/exynos5800-peach-pi.dts
+++ b/arch/arm/boot/dts/exynos5800-peach-pi.dts
@@ -11,6 +11,7 @@ 
 /dts-v1/;
 #include <dt-bindings/input/input.h>
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
 #include "exynos5800.dtsi"
 
 / {
@@ -142,6 +143,339 @@ 
 	ddc = <&i2c_2>;
 };
 
+&hsi2c_4 {
+	status = "okay";
+	clock-frequency = <400000>;
+
+	max77802-pmic@9 {
+		compatible = "maxim,max77802";
+		interrupt-parent = <&gpx3>;
+		interrupts = <1 IRQ_TYPE_NONE>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&max77802_irq>, <&pmic_selb>,
+			    <&pmic_dvs_1>, <&pmic_dvs_2>, <&pmic_dvs_3>;
+		wakeup-source;
+		reg = <0x9>;
+		#clock-cells = <1>;
+
+		inb1-supply = <&tps65090_dcdc2>;
+		inb2-supply = <&tps65090_dcdc1>;
+		inb3-supply = <&tps65090_dcdc2>;
+		inb4-supply = <&tps65090_dcdc2>;
+		inb5-supply = <&tps65090_dcdc1>;
+		inb6-supply = <&tps65090_dcdc2>;
+		inb7-supply = <&tps65090_dcdc1>;
+		inb8-supply = <&tps65090_dcdc1>;
+		inb9-supply = <&tps65090_dcdc1>;
+		inb10-supply = <&tps65090_dcdc1>;
+
+		inl1-supply = <&buck5_reg>;
+		inl2-supply = <&buck7_reg>;
+		inl3-supply = <&buck9_reg>;
+		inl4-supply = <&buck9_reg>;
+		inl5-supply = <&buck9_reg>;
+		inl6-supply = <&tps65090_dcdc2>;
+		inl7-supply = <&buck9_reg>;
+		inl9-supply = <&tps65090_dcdc2>;
+		inl10-supply = <&buck7_reg>;
+
+		regulators {
+			buck1_reg: BUCK1 {
+				regulator-name = "vdd_mif";
+				regulator-min-microvolt = <800000>;
+				regulator-max-microvolt = <1300000>;
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-ramp-delay = <12500>;
+			};
+
+			buck2_reg: BUCK2 {
+				regulator-name = "vdd_arm";
+				regulator-min-microvolt = <800000>;
+				regulator-max-microvolt = <1500000>;
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-ramp-delay = <12500>;
+			};
+
+			buck3_reg: BUCK3 {
+				regulator-name = "vdd_int";
+				regulator-min-microvolt = <800000>;
+				regulator-max-microvolt = <1400000>;
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-ramp-delay = <12500>;
+			};
+
+			buck4_reg: BUCK4 {
+				regulator-name = "vdd_g3d";
+				regulator-min-microvolt = <700000>;
+				regulator-max-microvolt = <1400000>;
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-ramp-delay = <12500>;
+			};
+
+			buck5_reg: BUCK5 {
+				regulator-name = "vdd_1v2";
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <1200000>;
+				regulator-always-on;
+				regulator-boot-on;
+			};
+
+			buck6_reg: BUCK6 {
+				regulator-name = "vdd_kfc";
+				regulator-min-microvolt = <800000>;
+				regulator-max-microvolt = <1500000>;
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-ramp-delay = <12500>;
+			};
+
+			buck7_reg: BUCK7 {
+				regulator-name = "vdd_1v35";
+				regulator-min-microvolt = <1350000>;
+				regulator-max-microvolt = <1350000>;
+				regulator-always-on;
+				regulator-boot-on;
+			};
+
+			buck8_reg: BUCK8 {
+				regulator-name = "vdd_emmc";
+				regulator-min-microvolt = <2850000>;
+				regulator-max-microvolt = <2850000>;
+				regulator-always-on;
+				regulator-boot-on;
+			};
+
+			buck9_reg: BUCK9 {
+				regulator-name = "vdd_2v";
+				regulator-min-microvolt = <2000000>;
+				regulator-max-microvolt = <2000000>;
+				regulator-always-on;
+				regulator-boot-on;
+			};
+
+			buck10_reg: BUCK10 {
+				regulator-name = "vdd_1v8";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-always-on;
+				regulator-boot-on;
+			};
+
+			ldo1_reg: LDO1 {
+				regulator-name = "vdd_1v0";
+				regulator-min-microvolt = <1000000>;
+				regulator-max-microvolt = <1000000>;
+				regulator-always-on;
+			};
+
+			ldo2_reg: LDO2 {
+				regulator-name = "vdd_1v2_2";
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <1200000>;
+			};
+
+			ldo3_reg: LDO3 {
+				regulator-name = "vdd_1v8_3";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-always-on;
+			};
+
+			vqmmc_sdcard: ldo4_reg: LDO4 {
+				regulator-name = "vdd_sd";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <2800000>;
+				regulator-always-on;
+			};
+
+			ldo5_reg: LDO5 {
+				regulator-name = "vdd_1v8_5";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-always-on;
+			};
+
+			ldo6_reg: LDO6 {
+				regulator-name = "vdd_1v8_6";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-always-on;
+			};
+
+			ldo7_reg: LDO7 {
+				regulator-name = "vdd_1v8_7";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+			};
+
+			ldo8_reg: LDO8 {
+				regulator-name = "vdd_ldo8";
+				regulator-min-microvolt = <1000000>;
+				regulator-max-microvolt = <1000000>;
+				regulator-always-on;
+			};
+
+			ldo9_reg: LDO9 {
+				regulator-name = "vdd_ldo9";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-always-on;
+			};
+
+			ldo10_reg: LDO10 {
+				regulator-name = "vdd_ldo10";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-always-on;
+			};
+
+			ldo11_reg: LDO11 {
+				regulator-name = "vdd_ldo11";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-always-on;
+			};
+
+			ldo12_reg: LDO12 {
+				regulator-name = "vdd_ldo12";
+				regulator-min-microvolt = <3000000>;
+				regulator-max-microvolt = <3000000>;
+				regulator-always-on;
+			};
+
+			ldo13_reg: LDO13 {
+				regulator-name = "vdd_ldo13";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-always-on;
+			};
+
+			ldo14_reg: LDO14 {
+				regulator-name = "vdd_ldo14";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-always-on;
+			};
+
+			ldo15_reg: LDO15 {
+				regulator-name = "vdd_ldo15";
+				regulator-min-microvolt = <1000000>;
+				regulator-max-microvolt = <1000000>;
+				regulator-always-on;
+			};
+
+			ldo17_reg: LDO17 {
+				regulator-name = "vdd_g3ds";
+				regulator-min-microvolt = <900000>;
+				regulator-max-microvolt = <1400000>;
+				regulator-always-on;
+			};
+
+			ldo18_reg: LDO18 {
+				regulator-name = "ldo_18";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+			};
+
+			ldo19_reg: LDO19 {
+				regulator-name = "ldo_19";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+			};
+
+			ldo20_reg: LDO20 {
+				regulator-name = "ldo_20";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-always-on;
+			};
+
+			ldo21_reg: LDO21 {
+				regulator-name = "ldo_21";
+				regulator-min-microvolt = <2800000>;
+				regulator-max-microvolt = <2800000>;
+			};
+
+			ldo23_reg: LDO23 {
+				regulator-name = "ldo_23";
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+			};
+			ldo24_reg: LDO24 {
+				regulator-name = "ldo_24";
+				regulator-min-microvolt = <2800000>;
+				regulator-max-microvolt = <2800000>;
+			};
+
+			ldo25_reg: LDO25 {
+				regulator-name = "ldo_25";
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+			};
+
+			ldo26_reg: LDO26 {
+				regulator-name = "ldo_26";
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <1200000>;
+			};
+
+			ldo27_reg: LDO27 {
+				regulator-name = "ldo_27";
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <1200000>;
+			};
+
+			ldo28_reg: LDO28 {
+				regulator-name = "ldo_28";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+			};
+
+			ldo29_reg: LDO29 {
+				regulator-name = "ldo_29";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+			};
+
+			ldo30_reg: LDO30 {
+				regulator-name = "vdd_mifs";
+				regulator-min-microvolt = <1000000>;
+				regulator-max-microvolt = <1000000>;
+				regulator-always-on;
+			};
+
+			ldo32_reg: LDO32 {
+				regulator-name = "ldo_32";
+				regulator-min-microvolt = <3000000>;
+				regulator-max-microvolt = <3000000>;
+			};
+
+			ldo33_reg: LDO33 {
+				regulator-name = "ldo_33";
+				regulator-min-microvolt = <2800000>;
+				regulator-max-microvolt = <2800000>;
+			};
+
+			ldo34_reg: LDO34 {
+				regulator-name = "ldo_34";
+				regulator-min-microvolt = <3000000>;
+				regulator-max-microvolt = <3000000>;
+			};
+
+			ldo35_reg: LDO35 {
+				regulator-name = "ldo_35";
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <1200000>;
+				inl2-supply = <&buck7_reg>;
+			};
+		};
+	};
+};
+
 &hsi2c_7 {
 	status = "okay";
 
@@ -267,12 +601,42 @@ 
 		samsung,pin-drv = <0>;
 	};
 
+	max77802_irq: max77802-irq {
+		samsung,pins = "gpx3-1";
+		samsung,pin-function = <0>;
+		samsung,pin-pud = <0>;
+		samsung,pin-drv = <0>;
+	};
+
 	hdmi_hpd_irq: hdmi-hpd-irq {
 		samsung,pins = "gpx3-7";
 		samsung,pin-function = <0>;
 		samsung,pin-pud = <1>;
 		samsung,pin-drv = <0>;
 	};
+
+	pmic_dvs_1: pmic-dvs-1 {
+		samsung,pins = "gpy7-6";
+		samsung,pin-function = <1>;
+		samsung,pin-pud = <0>;
+		samsung,pin-drv = <0>;
+	};
+};
+
+&pinctrl_2 {
+	pmic_dvs_2: pmic-dvs-2 {
+		samsung,pins = "gpj4-2";
+		samsung,pin-function = <1>;
+		samsung,pin-pud = <0>;
+		samsung,pin-drv = <0>;
+	};
+
+	pmic_dvs_3: pmic-dvs-3 {
+		samsung,pins = "gpj4-3";
+		samsung,pin-function = <1>;
+		samsung,pin-pud = <0>;
+		samsung,pin-drv = <0>;
+	};
 };
 
 &pinctrl_3 {
@@ -302,6 +666,14 @@ 
 		samsung,pin-pud = <0>;
 		samsung,pin-drv = <0>;
 	};
+
+	pmic_selb: pmic-selb {
+		samsung,pins = "gph0-2", "gph0-3", "gph0-4", "gph0-5",
+			       "gph0-6";
+		samsung,pin-function = <1>;
+		samsung,pin-pud = <0>;
+		samsung,pin-drv = <0>;
+	};
 };
 
 &rtc {