diff mbox

[V2,3/4] arm64: dts: Enable SDHCI for Nexus 5X (msm8992)

Message ID 1484614729-26751-4-git-send-email-jeremymc@redhat.com (mailing list archive)
State Superseded, archived
Delegated to: Andy Gross
Headers show

Commit Message

Jeremy McNicoll Jan. 17, 2017, 12:58 a.m. UTC
Add Nexus 5X (msm8992) SDHCI support, including initial regulator
entries to support enabling the main SDHCI/MMC.

The RPM is common between 8992 & 8994 simply reflect reality with
a shared DT entry.

The msm8994 RPM regulator talks over SMD to the APPS processor.

Signed-off-by: Jeremy McNicoll <jeremymc@redhat.com>
---

Dropped RobH's ACK explicitly after addressing all feedback.
The reason is that msm8994-smd-rpm.dtsi was created to allow
for sharing between 8992 & 8994 as the RPM is common between
the two. 

 .../bindings/regulator/qcom,smd-rpm-regulator.txt  |  40 +++
 .../boot/dts/qcom/msm8992-bullhead-rev-101.dts     |   2 +
 arch/arm64/boot/dts/qcom/msm8992-pins.dtsi         |  82 ++++++
 arch/arm64/boot/dts/qcom/msm8992.dtsi              | 153 ++++++++++++
 arch/arm64/boot/dts/qcom/msm8994-smd-rpm.dtsi      | 276 +++++++++++++++++++++
 drivers/regulator/qcom_smd-regulator.c             |  49 ++++
 6 files changed, 602 insertions(+)
 create mode 100644 arch/arm64/boot/dts/qcom/msm8994-smd-rpm.dtsi

Comments

Bjorn Andersson Jan. 18, 2017, 7:02 p.m. UTC | #1
On Mon 16 Jan 16:58 PST 2017, Jeremy McNicoll wrote:

> Add Nexus 5X (msm8992) SDHCI support, including initial regulator
> entries to support enabling the main SDHCI/MMC.
> 
> The RPM is common between 8992 & 8994 simply reflect reality with
> a shared DT entry.
> 
> The msm8994 RPM regulator talks over SMD to the APPS processor.
> 
> Signed-off-by: Jeremy McNicoll <jeremymc@redhat.com>
> ---
> 
> Dropped RobH's ACK explicitly after addressing all feedback.
> The reason is that msm8994-smd-rpm.dtsi was created to allow
> for sharing between 8992 & 8994 as the RPM is common between
> the two. 
> 
>  .../bindings/regulator/qcom,smd-rpm-regulator.txt  |  40 +++
>  .../boot/dts/qcom/msm8992-bullhead-rev-101.dts     |   2 +
>  arch/arm64/boot/dts/qcom/msm8992-pins.dtsi         |  82 ++++++
>  arch/arm64/boot/dts/qcom/msm8992.dtsi              | 153 ++++++++++++
>  arch/arm64/boot/dts/qcom/msm8994-smd-rpm.dtsi      | 276 +++++++++++++++++++++
>  drivers/regulator/qcom_smd-regulator.c             |  49 ++++
>  6 files changed, 602 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/qcom/msm8994-smd-rpm.dtsi
> 
> diff --git a/Documentation/devicetree/bindings/regulator/qcom,smd-rpm-regulator.txt b/Documentation/devicetree/bindings/regulator/qcom,smd-rpm-regulator.txt
> index 1f8d6f8..126989b 100644
> --- a/Documentation/devicetree/bindings/regulator/qcom,smd-rpm-regulator.txt
> +++ b/Documentation/devicetree/bindings/regulator/qcom,smd-rpm-regulator.txt
> @@ -23,6 +23,7 @@ Regulator nodes are identified by their compatible:
>  		    "qcom,rpm-pm8916-regulators"
>  		    "qcom,rpm-pm8941-regulators"
>  		    "qcom,rpm-pma8084-regulators"
> +		    "qcom,rpm-pm8994-regulators"
>  
>  - vdd_s1-supply:
>  - vdd_s2-supply:
> @@ -97,6 +98,40 @@ Regulator nodes are identified by their compatible:
>  	Definition: reference to regulator supplying the input pin, as
>  		    described in the data sheet
>  
> +- vdd_s1-supply:
> +- vdd_s2-supply:
> +- vdd_s3-supply:
> +- vdd_s4-supply:
> +- vdd_s5-supply:
> +- vdd_s6-supply:
> +- vdd_s7-supply:
> +- vdd_l1_l11-supply:
> +- vdd_l2_l3_l4_l27-supply:
> +- vdd_l5_l7-supply:
> +- vdd_l6_l12_l14_l15_l26-supply:
> +- vdd_l8-supply:
> +- vdd_l9_l10_l13_l20_l23_l24-supply:
> +- vdd_l1_l11-supply:
> +- vdd_l6_l12_l14_l15_l26-supply:
> +- vdd_l16_l25-supply:
> +- vdd_l17-supply:
> +- vdd_l18-supply:
> +- vdd_l19-supply:
> +- vdd_l21-supply:
> +- vdd_l22-supply:
> +- vdd_l16_l25-supply:
> +- vdd_l27-supply:
> +- vdd_l28-supply:
> +- vdd_l29-supply:
> +- vdd_l30-supply:
> +- vdd_l31-supply:
> +- vdd_l32-supply:
> +	Usage: optional (pm8994 only)
> +	Value type: <phandle>
> +	Definition: reference to regulator supplying the input pin, as
> +		    described in the data sheet.

This is not entirely correct and should be part of a "arm64: dts" patch.

It seems to be compatible with the pm8994 patch we've had sitting in the
Linaro tree for msm8996 for some time, so I did send this out; with you
Cc. Please give it a spin.

> +
> +
>  The regulator node houses sub-nodes for each regulator within the device. Each
>  sub-node is identified using the node's name, with valid values listed for each
>  of the pmics below.
> @@ -118,6 +153,11 @@ pma8084:
>  	l6, l7, l8, l9, l10, l11, l12, l13, l14, l15, l16, l17, l18, l19, l20,
>  	l21, l22, l23, l24, l25, l26, l27, lvs1, lvs2, lvs3, lvs4, 5vs1
>  
> +pm8994:
> +	s1, s2, s3, s4, s5, s6, s7, l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11,
> +	l12, l13, l14, l15, l16, l17, l18, l19, l20, l21, l22, l23, l24, l25, l26,
> +	l27, l28, l29, l30, l31, l32, lvs1, lvs2
> +
>  The content of each sub-node is defined by the standard binding for regulators -
>  see regulator.txt.
>  
> diff --git a/arch/arm64/boot/dts/qcom/msm8992-bullhead-rev-101.dts b/arch/arm64/boot/dts/qcom/msm8992-bullhead-rev-101.dts
> index 4542133..3fc9a33 100644
> --- a/arch/arm64/boot/dts/qcom/msm8992-bullhead-rev-101.dts
> +++ b/arch/arm64/boot/dts/qcom/msm8992-bullhead-rev-101.dts
> @@ -39,3 +39,5 @@
>  		};
>  	};
>  };
> +
> +#include "msm8994-smd-rpm.dtsi"
> diff --git a/arch/arm64/boot/dts/qcom/msm8992-pins.dtsi b/arch/arm64/boot/dts/qcom/msm8992-pins.dtsi
> index d2a26f0..d3ae5ab 100644
> --- a/arch/arm64/boot/dts/qcom/msm8992-pins.dtsi
> +++ b/arch/arm64/boot/dts/qcom/msm8992-pins.dtsi
> @@ -35,4 +35,86 @@
>  			bias-pull-down;
>  		};
>  	};
> +
> +	/* 0-3 for sdc1 4-6 for sdc2 */
> +	/* Order of pins */
> +	/* SDC1: CLK -> 0, CMD -> 1, DATA -> 2, RCLK -> 3 */
> +	/* SDC2: CLK -> 4, CMD -> 5, DATA -> 6 */
> +	pmx-sdc1-clk {
> +		sdc1_clk_on: clk-on {
> +			pinmux {
> +				pins = "sdc1_clk";
> +			};

The name of these nodes are insignificant, so you don't have to have a
pinmux and a pinconf, you can describe all properties in one node. I
even think you can flatten this and drop the inner subnode.

> +			pinconf {
> +				pins = "sdc1_clk";
> +				bias-disable = <0>; /* No pull */
> +				drive-strength = <16>; /* 16mA */
> +			};
> +		};
[..]
> diff --git a/arch/arm64/boot/dts/qcom/msm8992.dtsi b/arch/arm64/boot/dts/qcom/msm8992.dtsi
> index 44b2d37..77edffc 100644
> --- a/arch/arm64/boot/dts/qcom/msm8992.dtsi
> +++ b/arch/arm64/boot/dts/qcom/msm8992.dtsi
> @@ -82,6 +82,12 @@
>  				<0xf9002000 0x1000>;
>  		};
>  
> +		apcs: syscon@f900d000 {
> +			compatible = "syscon";
> +			reg = <0xf900d000 0x2000>;
> +		};
> +
> +

Please send the SMEM/SMD-ification in a separate patch from the sdhci
addition.

>  		timer@f9020000 {
>  			#address-cells = <1>;
>  			#size-cells = <1>;
> @@ -172,12 +178,159 @@
>  			#power-domain-cells = <1>;
>  			reg = <0xfc400000 0x2000>;
>  		};
> +
> +		sdhci1: mmc@f9824900 {
> +			compatible = "qcom,sdhci-msm-v4";
> +			reg = <0xf9824900 0x1a0>, <0xf9824000 0x800>;
> +			reg-names = "hc_mem", "core_mem";
> +
> +			interrupts = <GIC_SPI 123 IRQ_TYPE_NONE>,
> +					<GIC_SPI 138 IRQ_TYPE_NONE>;
> +			interrupt-names = "hc_irq", "pwr_irq";
> +
> +			clocks = <&clock_gcc GCC_SDCC1_APPS_CLK>,
> +				<&clock_gcc GCC_SDCC1_AHB_CLK>;
> +			clock-names = "core", "iface";
> +
> +			pinctrl-names = "default", "sleep";
> +			pinctrl-0 = <&sdc1_clk_on &sdc1_cmd_on &sdc1_data_on
> +					&sdc1_rclk_on>;
> +			pinctrl-1 = <&sdc1_clk_off &sdc1_cmd_off &sdc1_data_off
> +					&sdc1_rclk_off>;
> +
> +			vdd-supply = <&pm8994_l20>;
> +			qcom,vdd-voltage-level = <2950000 2950000>;
> +			qcom,vdd-current-level = <200 570000>;

These properties are not recognized upstream, please drop.

> +
> +			vdd-io-supply = <&pm8994_s4>;
> +			qcom,vdd-io-voltage-level = <1800000 1800000>;
> +			qcom,vdd-io-current-level = <200 325000>;
> +
> +			regulator-always-on;
> +			bus-width = <8>;
> +			mmc-hs400-1_8v;
> +			status = "okay";
> +		};
> +
> +		vreg_vph_pwr: vreg-vph-pwr {
> +			compatible = "regulator-fixed";
> +			status = "okay";
> +			regulator-name = "vph-pwr";
> +
> +			regulator-min-microvolt = <3600000>;
> +			regulator-max-microvolt = <3600000>;
> +
> +			regulator-always-on;
> +		};

This doesn't have a "reg", so please move it outside "soc"

> +
> +		rpm_msg_ram: memory@fc428000 {
> +			compatible = "qcom,rpm-msg-ram";
> +			reg = <0xfc428000 0x4000>;
> +		};
> +
> +		sfpb_mutex_regs: syscon@fd484000 {
> +			#address-cells = <1>;
> +			#size-cells = <1>;
> +			compatible = "syscon";
> +			reg = <0xfd484000 0x400>;
> +		};
> +
> +		sfpb_mutex: hwmutex {
> +			compatible = "qcom,sfpb-mutex";
> +			syscon = <&sfpb_mutex_regs 0x0 0x100>;
> +			#hwlock-cells = <1>;
> +		};
> +
> +		smem {
> +			compatible = "qcom,smem";
> +			memory-region = <&smem_region>;
> +			qcom,rpm-msg-ram = <&rpm_msg_ram>;
> +			hwlocks = <&sfpb_mutex 3>;
> +		};

The smem enablement here looks reasonable, please split into a separate
patch.

>  	};
>  
>  	memory {
>  		device_type = "memory";
>  		reg = <0 0 0 0>; // bootloader will update
>  	};
> +
> +	reserved-memory {
> +		#address-cells = <2>;
> +		#size-cells = <2>;
> +		ranges;
> +
> +		smem_region: smem@6a00000 {
> +			reg = <0x0 0x6a00000 0x0 0x200000>;
> +			no-map;
> +		};
> +	};
> +
> +	smd_rpm: smd {

You don't have to reference this by label, just saying "/smd" will work
just as well.

> +		compatible = "qcom,smd";
> +
> +		rpm {
> +			interrupts = <GIC_SPI 168 IRQ_TYPE_EDGE_RISING>;
> +			qcom,ipc = <&apcs 8 0>;
> +			qcom,smd-edge = <15>;
> +			qcom,local-pid = <0>;
> +			qcom,remote-pid = <6>;
> +
> +			rpm-requests {
> +				compatible = "qcom,rpm-msm8994";
> +				qcom,smd-channels = "rpm_requests";
> +
> +				rpmcc: qcom,rpmcc {
> +					/* TODO: update when rpmcc-msm8994 support added */
> +					compatible = "qcom,rpmcc-msm8916",
> +							"qcom,rpmcc";
> +					#clock-cells = <1>;
> +				};

You're not compatible with qcom,rpmcc-msm8916, so don't fool the kernel
to think you are. Just drop this node until you have a rpmcc and need
it.

> +
> +				smd_rpm_regulators: pm8994-regulators {

This label is unused.

> +					compatible = "qcom,rpm-pm8994-regulators";
> +
> +					pm8994_s1: s1 {};
> +					pm8994_s2: s2 {};
> +					pm8994_s3: s3 {};
> +					pm8994_s4: s4 {};
> +					pm8994_s5: s5 {};
> +					pm8994_s6: s6 {};
> +					pm8994_s7: s7 {};
> +
> +					pm8994_l1: l1 {};
> +					pm8994_l2: l2 {};
> +					pm8994_l3: l3 {};
> +					pm8994_l4: l4 {};
> +					pm8994_l6: l6 {};
> +					pm8994_l8: l8 {};
> +					pm8994_l9: l9 {};
> +					pm8994_l10: l10 {};
> +					pm8994_l11: l11 {};
> +					pm8994_l12: l12 {};
> +					pm8994_l13: l13 {};
> +					pm8994_l14: l14 {};
> +					pm8994_l15: l15 {};
> +					pm8994_l16: l16 {};
> +					pm8994_l17: l17 {};
> +					pm8994_l18: l18 {};
> +					pm8994_l19: l19 {};
> +					pm8994_l20: l20 {};
> +					pm8994_l21: l21 {};
> +					pm8994_l22: l22 {};
> +					pm8994_l23: l23 {};
> +					pm8994_l24: l24 {};
> +					pm8994_l25: l25 {};
> +					pm8994_l26: l26 {};
> +					pm8994_l27: l27 {};
> +					pm8994_l28: l28 {};
> +					pm8994_l29: l29 {};
> +					pm8994_l30: l30 {};
> +					pm8994_l31: l31 {};
> +					pm8994_l32: l32 {};

Add lvs1 & lvs2.

> +				};
> +			};
> +		};
> +	};
>  };
>  
>  
> diff --git a/arch/arm64/boot/dts/qcom/msm8994-smd-rpm.dtsi b/arch/arm64/boot/dts/qcom/msm8994-smd-rpm.dtsi

These rpm settings are not for msm8994, they are for your device. So
please drop this file and move below nodes into your device dts.

[..]
> +&smd_rpm {
> +	rpm {
> +		rpm_requests {
> +			pm8994-regulators {
> +
> +				vdd_l1-supply = <&pm8994_s1>;
> +				vdd_l2_26_28-supply = <&pm8994_s3>;
> +				vdd_l3_11-supply = <&pm8994_s3>;
> +				vdd_l4_27_31-supply = <&pm8994_s3>;
> +				vdd_l5_7-supply = <&pm8994_s3>;
> +				vdd_l6_12_32-supply = <&pm8994_s5>;
> +				vdd_l8_16_30-supply = <&vreg_vph_pwr>;
> +				vdd_l9_10_18_22-supply = <&vreg_vph_pwr>;
> +				vdd_l13_19_23_24-supply = <&vreg_vph_pwr>;
> +				vdd_l14_15-supply = <&pm8994_s5>;
> +				vdd_l17_29-supply = <&vreg_vph_pwr>;
> +				vdd_l20_21-supply = <&vreg_vph_pwr>;
> +				vdd_l25-supply = <&pm8994_s5>;
> +				/*vin_lvs1_2 = <&pm8994_s4>; */

I added this to the pm8994 regulator patch I just sent out, called it
"vdd_lvs1_2".

> +
[..]
> diff --git a/drivers/regulator/qcom_smd-regulator.c b/drivers/regulator/qcom_smd-regulator.c
[..]
>  
> +static const struct rpm_regulator_data rpm_pm8994_regulators[] = {
> +	{ "s1", QCOM_SMD_RPM_SMPA, 1, &pma8084_ftsmps, "vdd_s1" },

As with the binding, this isn't entirely correct. Please see my
submitted patch.

Regards,
Bjorn
--
To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Rob Herring (Arm) Jan. 19, 2017, 5:21 p.m. UTC | #2
On Mon, Jan 16, 2017 at 04:58:48PM -0800, Jeremy McNicoll wrote:
> Add Nexus 5X (msm8992) SDHCI support, including initial regulator
> entries to support enabling the main SDHCI/MMC.
> 
> The RPM is common between 8992 & 8994 simply reflect reality with
> a shared DT entry.
> 
> The msm8994 RPM regulator talks over SMD to the APPS processor.
> 
> Signed-off-by: Jeremy McNicoll <jeremymc@redhat.com>
> ---
> 
> Dropped RobH's ACK explicitly after addressing all feedback.
> The reason is that msm8994-smd-rpm.dtsi was created to allow
> for sharing between 8992 & 8994 as the RPM is common between
> the two. 
> 
>  .../bindings/regulator/qcom,smd-rpm-regulator.txt  |  40 +++
>  .../boot/dts/qcom/msm8992-bullhead-rev-101.dts     |   2 +
>  arch/arm64/boot/dts/qcom/msm8992-pins.dtsi         |  82 ++++++
>  arch/arm64/boot/dts/qcom/msm8992.dtsi              | 153 ++++++++++++
>  arch/arm64/boot/dts/qcom/msm8994-smd-rpm.dtsi      | 276 +++++++++++++++++++++

Acked-by: Rob Herring <robh@kernel.org>

>  drivers/regulator/qcom_smd-regulator.c             |  49 ++++
>  6 files changed, 602 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/qcom/msm8994-smd-rpm.dtsi
--
To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Jeremy McNicoll Jan. 20, 2017, 12:20 a.m. UTC | #3
On Wed, Jan 18, 2017 at 11:02:57AM -0800, Bjorn Andersson wrote:
> On Mon 16 Jan 16:58 PST 2017, Jeremy McNicoll wrote:
> 
> > Add Nexus 5X (msm8992) SDHCI support, including initial regulator
> > entries to support enabling the main SDHCI/MMC.
> > 
> > The RPM is common between 8992 & 8994 simply reflect reality with
> > a shared DT entry.
> > 
> > The msm8994 RPM regulator talks over SMD to the APPS processor.
> > 
> > Signed-off-by: Jeremy McNicoll <jeremymc@redhat.com>
> > ---
> > 
> > Dropped RobH's ACK explicitly after addressing all feedback.
> > The reason is that msm8994-smd-rpm.dtsi was created to allow
> > for sharing between 8992 & 8994 as the RPM is common between
> > the two. 
> > 
> >  .../bindings/regulator/qcom,smd-rpm-regulator.txt  |  40 +++
> >  .../boot/dts/qcom/msm8992-bullhead-rev-101.dts     |   2 +
> >  arch/arm64/boot/dts/qcom/msm8992-pins.dtsi         |  82 ++++++
> >  arch/arm64/boot/dts/qcom/msm8992.dtsi              | 153 ++++++++++++
> >  arch/arm64/boot/dts/qcom/msm8994-smd-rpm.dtsi      | 276 +++++++++++++++++++++
> >  drivers/regulator/qcom_smd-regulator.c             |  49 ++++
> >  6 files changed, 602 insertions(+)
> >  create mode 100644 arch/arm64/boot/dts/qcom/msm8994-smd-rpm.dtsi
> > 
> > diff --git a/Documentation/devicetree/bindings/regulator/qcom,smd-rpm-regulator.txt b/Documentation/devicetree/bindings/regulator/qcom,smd-rpm-regulator.txt
> > index 1f8d6f8..126989b 100644
> > --- a/Documentation/devicetree/bindings/regulator/qcom,smd-rpm-regulator.txt
> > +++ b/Documentation/devicetree/bindings/regulator/qcom,smd-rpm-regulator.txt
> > @@ -23,6 +23,7 @@ Regulator nodes are identified by their compatible:
> >  		    "qcom,rpm-pm8916-regulators"
> >  		    "qcom,rpm-pm8941-regulators"
> >  		    "qcom,rpm-pma8084-regulators"
> > +		    "qcom,rpm-pm8994-regulators"
> >  
> >  - vdd_s1-supply:
> >  - vdd_s2-supply:
> > @@ -97,6 +98,40 @@ Regulator nodes are identified by their compatible:
> >  	Definition: reference to regulator supplying the input pin, as
> >  		    described in the data sheet
> >  
> > +- vdd_s1-supply:
> > +- vdd_s2-supply:
> > +- vdd_s3-supply:
> > +- vdd_s4-supply:
> > +- vdd_s5-supply:
> > +- vdd_s6-supply:
> > +- vdd_s7-supply:
> > +- vdd_l1_l11-supply:
> > +- vdd_l2_l3_l4_l27-supply:
> > +- vdd_l5_l7-supply:
> > +- vdd_l6_l12_l14_l15_l26-supply:
> > +- vdd_l8-supply:
> > +- vdd_l9_l10_l13_l20_l23_l24-supply:
> > +- vdd_l1_l11-supply:
> > +- vdd_l6_l12_l14_l15_l26-supply:
> > +- vdd_l16_l25-supply:
> > +- vdd_l17-supply:
> > +- vdd_l18-supply:
> > +- vdd_l19-supply:
> > +- vdd_l21-supply:
> > +- vdd_l22-supply:
> > +- vdd_l16_l25-supply:
> > +- vdd_l27-supply:
> > +- vdd_l28-supply:
> > +- vdd_l29-supply:
> > +- vdd_l30-supply:
> > +- vdd_l31-supply:
> > +- vdd_l32-supply:
> > +	Usage: optional (pm8994 only)
> > +	Value type: <phandle>
> > +	Definition: reference to regulator supplying the input pin, as
> > +		    described in the data sheet.
> 
> This is not entirely correct and should be part of a "arm64: dts" patch.
>

.... but the title of this patch is "[PATCH V2 3/4] arm64: dts: Enable
SDHCI for Nexus 5X (msm8992)" which has the 'arm64: dts:' you are
referring to.

A new patch?  

> It seems to be compatible with the pm8994 patch we've had sitting in the
> Linaro tree for msm8996 for some time, so I did send this out; with you
> Cc. Please give it a spin.
>


Seems to work just fine.  I'll drop my changes which are covered in the
afore mentioned patch.  There seems to be a delta between what I have
and what you sent, nothing major and the few peripherals supported thus
far still seem to be working.

> > +
> > +
> >  The regulator node houses sub-nodes for each regulator within the device. Each
> >  sub-node is identified using the node's name, with valid values listed for each
> >  of the pmics below.
> > @@ -118,6 +153,11 @@ pma8084:
> >  	l6, l7, l8, l9, l10, l11, l12, l13, l14, l15, l16, l17, l18, l19, l20,
> >  	l21, l22, l23, l24, l25, l26, l27, lvs1, lvs2, lvs3, lvs4, 5vs1
> >  
> > +pm8994:
> > +	s1, s2, s3, s4, s5, s6, s7, l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11,
> > +	l12, l13, l14, l15, l16, l17, l18, l19, l20, l21, l22, l23, l24, l25, l26,
> > +	l27, l28, l29, l30, l31, l32, lvs1, lvs2
> > +
> >  The content of each sub-node is defined by the standard binding for regulators -
> >  see regulator.txt.
> >  
> > diff --git a/arch/arm64/boot/dts/qcom/msm8992-bullhead-rev-101.dts b/arch/arm64/boot/dts/qcom/msm8992-bullhead-rev-101.dts
> > index 4542133..3fc9a33 100644
> > --- a/arch/arm64/boot/dts/qcom/msm8992-bullhead-rev-101.dts
> > +++ b/arch/arm64/boot/dts/qcom/msm8992-bullhead-rev-101.dts
> > @@ -39,3 +39,5 @@
> >  		};
> >  	};
> >  };
> > +
> > +#include "msm8994-smd-rpm.dtsi"
> > diff --git a/arch/arm64/boot/dts/qcom/msm8992-pins.dtsi b/arch/arm64/boot/dts/qcom/msm8992-pins.dtsi
> > index d2a26f0..d3ae5ab 100644
> > --- a/arch/arm64/boot/dts/qcom/msm8992-pins.dtsi
> > +++ b/arch/arm64/boot/dts/qcom/msm8992-pins.dtsi
> > @@ -35,4 +35,86 @@
> >  			bias-pull-down;
> >  		};
> >  	};
> > +
> > +	/* 0-3 for sdc1 4-6 for sdc2 */
> > +	/* Order of pins */
> > +	/* SDC1: CLK -> 0, CMD -> 1, DATA -> 2, RCLK -> 3 */
> > +	/* SDC2: CLK -> 4, CMD -> 5, DATA -> 6 */
> > +	pmx-sdc1-clk {
> > +		sdc1_clk_on: clk-on {
> > +			pinmux {
> > +				pins = "sdc1_clk";
> > +			};
> 
> The name of these nodes are insignificant, so you don't have to have a
> pinmux and a pinconf, you can describe all properties in one node. I
> even think you can flatten this and drop the inner subnode.
>

Seems reasonable and a little bit more readable. 


> > +			pinconf {
> > +				pins = "sdc1_clk";
> > +				bias-disable = <0>; /* No pull */
> > +				drive-strength = <16>; /* 16mA */
> > +			};
> > +		};
> [..]
> > diff --git a/arch/arm64/boot/dts/qcom/msm8992.dtsi b/arch/arm64/boot/dts/qcom/msm8992.dtsi
> > index 44b2d37..77edffc 100644
> > --- a/arch/arm64/boot/dts/qcom/msm8992.dtsi
> > +++ b/arch/arm64/boot/dts/qcom/msm8992.dtsi
> > @@ -82,6 +82,12 @@
> >  				<0xf9002000 0x1000>;
> >  		};
> >  
> > +		apcs: syscon@f900d000 {
> > +			compatible = "syscon";
> > +			reg = <0xf900d000 0x2000>;
> > +		};
> > +
> > +
> 
> Please send the SMEM/SMD-ification in a separate patch from the sdhci
> addition.
>

sounds good.


> >  		timer@f9020000 {
> >  			#address-cells = <1>;
> >  			#size-cells = <1>;
> > @@ -172,12 +178,159 @@
> >  			#power-domain-cells = <1>;
> >  			reg = <0xfc400000 0x2000>;
> >  		};
> > +
> > +		sdhci1: mmc@f9824900 {
> > +			compatible = "qcom,sdhci-msm-v4";
> > +			reg = <0xf9824900 0x1a0>, <0xf9824000 0x800>;
> > +			reg-names = "hc_mem", "core_mem";
> > +
> > +			interrupts = <GIC_SPI 123 IRQ_TYPE_NONE>,
> > +					<GIC_SPI 138 IRQ_TYPE_NONE>;
> > +			interrupt-names = "hc_irq", "pwr_irq";
> > +
> > +			clocks = <&clock_gcc GCC_SDCC1_APPS_CLK>,
> > +				<&clock_gcc GCC_SDCC1_AHB_CLK>;
> > +			clock-names = "core", "iface";
> > +
> > +			pinctrl-names = "default", "sleep";
> > +			pinctrl-0 = <&sdc1_clk_on &sdc1_cmd_on &sdc1_data_on
> > +					&sdc1_rclk_on>;
> > +			pinctrl-1 = <&sdc1_clk_off &sdc1_cmd_off &sdc1_data_off
> > +					&sdc1_rclk_off>;
> > +
> > +			vdd-supply = <&pm8994_l20>;
> > +			qcom,vdd-voltage-level = <2950000 2950000>;
> > +			qcom,vdd-current-level = <200 570000>;
> 
> These properties are not recognized upstream, please drop.
>

I believe at one point I needed them in order to use some pre-merged
patches.  It was a stop gap until the latest SDHCI changes were sent
and now have been merged.

dropped.


> > +
> > +			vdd-io-supply = <&pm8994_s4>;
> > +			qcom,vdd-io-voltage-level = <1800000 1800000>;
> > +			qcom,vdd-io-current-level = <200 325000>;
> > +
> > +			regulator-always-on;
> > +			bus-width = <8>;
> > +			mmc-hs400-1_8v;
> > +			status = "okay";
> > +		};
> > +
> > +		vreg_vph_pwr: vreg-vph-pwr {
> > +			compatible = "regulator-fixed";
> > +			status = "okay";
> > +			regulator-name = "vph-pwr";
> > +
> > +			regulator-min-microvolt = <3600000>;
> > +			regulator-max-microvolt = <3600000>;
> > +
> > +			regulator-always-on;
> > +		};
> 
> This doesn't have a "reg", so please move it outside "soc"

done and created a patch with just the fixed regulator change on its
own.


> 
> > +
> > +		rpm_msg_ram: memory@fc428000 {
> > +			compatible = "qcom,rpm-msg-ram";
> > +			reg = <0xfc428000 0x4000>;
> > +		};
> > +
> > +		sfpb_mutex_regs: syscon@fd484000 {
> > +			#address-cells = <1>;
> > +			#size-cells = <1>;
> > +			compatible = "syscon";
> > +			reg = <0xfd484000 0x400>;
> > +		};
> > +
> > +		sfpb_mutex: hwmutex {
> > +			compatible = "qcom,sfpb-mutex";
> > +			syscon = <&sfpb_mutex_regs 0x0 0x100>;
> > +			#hwlock-cells = <1>;
> > +		};
> > +
> > +		smem {
> > +			compatible = "qcom,smem";
> > +			memory-region = <&smem_region>;
> > +			qcom,rpm-msg-ram = <&rpm_msg_ram>;
> > +			hwlocks = <&sfpb_mutex 3>;
> > +		};
> 
> The smem enablement here looks reasonable, please split into a separate
> patch.
>

Can the rpm_msg_ram be considered as part of SMEM ?

> >  	};
> >  
> >  	memory {
> >  		device_type = "memory";
> >  		reg = <0 0 0 0>; // bootloader will update
> >  	};
> > +
> > +	reserved-memory {
> > +		#address-cells = <2>;
> > +		#size-cells = <2>;
> > +		ranges;
> > +
> > +		smem_region: smem@6a00000 {
> > +			reg = <0x0 0x6a00000 0x0 0x200000>;
> > +			no-map;
> > +		};
> > +	};
> > +
> > +	smd_rpm: smd {
> 
> You don't have to reference this by label, just saying "/smd" will work
> just as well.
> 

msm8994-smd-rpm.dtsi is referencing it.  See below. 


> > +		compatible = "qcom,smd";
> > +
> > +		rpm {
> > +			interrupts = <GIC_SPI 168 IRQ_TYPE_EDGE_RISING>;
> > +			qcom,ipc = <&apcs 8 0>;
> > +			qcom,smd-edge = <15>;
> > +			qcom,local-pid = <0>;
> > +			qcom,remote-pid = <6>;
> > +
> > +			rpm-requests {
> > +				compatible = "qcom,rpm-msm8994";
> > +				qcom,smd-channels = "rpm_requests";
> > +
> > +				rpmcc: qcom,rpmcc {
> > +					/* TODO: update when rpmcc-msm8994 support added */
> > +					compatible = "qcom,rpmcc-msm8916",
> > +							"qcom,rpmcc";
> > +					#clock-cells = <1>;
> > +				};
> 
> You're not compatible with qcom,rpmcc-msm8916, so don't fool the kernel
> to think you are. Just drop this node until you have a rpmcc and need
> it.
>

dropped

> > +
> > +				smd_rpm_regulators: pm8994-regulators {
> 
> This label is unused.
>

gone

> > +					compatible = "qcom,rpm-pm8994-regulators";
> > +
> > +					pm8994_s1: s1 {};
> > +					pm8994_s2: s2 {};
> > +					pm8994_s3: s3 {};
> > +					pm8994_s4: s4 {};
> > +					pm8994_s5: s5 {};
> > +					pm8994_s6: s6 {};
> > +					pm8994_s7: s7 {};
> > +
> > +					pm8994_l1: l1 {};
> > +					pm8994_l2: l2 {};
> > +					pm8994_l3: l3 {};
> > +					pm8994_l4: l4 {};
> > +					pm8994_l6: l6 {};
> > +					pm8994_l8: l8 {};
> > +					pm8994_l9: l9 {};
> > +					pm8994_l10: l10 {};
> > +					pm8994_l11: l11 {};
> > +					pm8994_l12: l12 {};
> > +					pm8994_l13: l13 {};
> > +					pm8994_l14: l14 {};
> > +					pm8994_l15: l15 {};
> > +					pm8994_l16: l16 {};
> > +					pm8994_l17: l17 {};
> > +					pm8994_l18: l18 {};
> > +					pm8994_l19: l19 {};
> > +					pm8994_l20: l20 {};
> > +					pm8994_l21: l21 {};
> > +					pm8994_l22: l22 {};
> > +					pm8994_l23: l23 {};
> > +					pm8994_l24: l24 {};
> > +					pm8994_l25: l25 {};
> > +					pm8994_l26: l26 {};
> > +					pm8994_l27: l27 {};
> > +					pm8994_l28: l28 {};
> > +					pm8994_l29: l29 {};
> > +					pm8994_l30: l30 {};
> > +					pm8994_l31: l31 {};
> > +					pm8994_l32: l32 {};
> 
> Add lvs1 & lvs2.
> 

ok


> > +				};
> > +			};
> > +		};
> > +	};
> >  };
> >  
> >  
> > diff --git a/arch/arm64/boot/dts/qcom/msm8994-smd-rpm.dtsi b/arch/arm64/boot/dts/qcom/msm8994-smd-rpm.dtsi
> 
> These rpm settings are not for msm8994, they are for your device. So
> please drop this file and move below nodes into your device dts.
>

Looks like the 8994-rpm-regulator is common between both 8992 & 8994. 

Downstream seems to imply that its common. (see lines 3117->3119)

https://android.googlesource.com/kernel/msm.git/+/android-msm-angler-3.10-marshmallow-mr1/arch/arm/boot/dts/qcom/msm8992.dtsi

Do the docs say otherwise? (can only rely on downstream as I don't have
access to the docs).

Also, when testing Bastien's changes on a Nexus 6P which used the same
settings for the RPM as this patch the few peripherals which are enabled
at this point seemed to work.  

> [..]
> > +&smd_rpm {
> > +	rpm {
> > +		rpm_requests {
> > +			pm8994-regulators {
> > +
> > +				vdd_l1-supply = <&pm8994_s1>;
> > +				vdd_l2_26_28-supply = <&pm8994_s3>;
> > +				vdd_l3_11-supply = <&pm8994_s3>;
> > +				vdd_l4_27_31-supply = <&pm8994_s3>;
> > +				vdd_l5_7-supply = <&pm8994_s3>;
> > +				vdd_l6_12_32-supply = <&pm8994_s5>;
> > +				vdd_l8_16_30-supply = <&vreg_vph_pwr>;
> > +				vdd_l9_10_18_22-supply = <&vreg_vph_pwr>;
> > +				vdd_l13_19_23_24-supply = <&vreg_vph_pwr>;
> > +				vdd_l14_15-supply = <&pm8994_s5>;
> > +				vdd_l17_29-supply = <&vreg_vph_pwr>;
> > +				vdd_l20_21-supply = <&vreg_vph_pwr>;
> > +				vdd_l25-supply = <&pm8994_s5>;
> > +				/*vin_lvs1_2 = <&pm8994_s4>; */
> 
> I added this to the pm8994 regulator patch I just sent out, called it
> "vdd_lvs1_2".

good, uncommented it. 

> 
> > +
> [..]
> > diff --git a/drivers/regulator/qcom_smd-regulator.c b/drivers/regulator/qcom_smd-regulator.c
> [..]
> >  
> > +static const struct rpm_regulator_data rpm_pm8994_regulators[] = {
> > +	{ "s1", QCOM_SMD_RPM_SMPA, 1, &pma8084_ftsmps, "vdd_s1" },
> 
> As with the binding, this isn't entirely correct. Please see my
> submitted patch.
>

I'll go with it as it seems to work for the few peripherals that
are enabled thus far.

-jeremy

> Regards,
> Bjorn
--
To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
diff mbox

Patch

diff --git a/Documentation/devicetree/bindings/regulator/qcom,smd-rpm-regulator.txt b/Documentation/devicetree/bindings/regulator/qcom,smd-rpm-regulator.txt
index 1f8d6f8..126989b 100644
--- a/Documentation/devicetree/bindings/regulator/qcom,smd-rpm-regulator.txt
+++ b/Documentation/devicetree/bindings/regulator/qcom,smd-rpm-regulator.txt
@@ -23,6 +23,7 @@  Regulator nodes are identified by their compatible:
 		    "qcom,rpm-pm8916-regulators"
 		    "qcom,rpm-pm8941-regulators"
 		    "qcom,rpm-pma8084-regulators"
+		    "qcom,rpm-pm8994-regulators"
 
 - vdd_s1-supply:
 - vdd_s2-supply:
@@ -97,6 +98,40 @@  Regulator nodes are identified by their compatible:
 	Definition: reference to regulator supplying the input pin, as
 		    described in the data sheet
 
+- vdd_s1-supply:
+- vdd_s2-supply:
+- vdd_s3-supply:
+- vdd_s4-supply:
+- vdd_s5-supply:
+- vdd_s6-supply:
+- vdd_s7-supply:
+- vdd_l1_l11-supply:
+- vdd_l2_l3_l4_l27-supply:
+- vdd_l5_l7-supply:
+- vdd_l6_l12_l14_l15_l26-supply:
+- vdd_l8-supply:
+- vdd_l9_l10_l13_l20_l23_l24-supply:
+- vdd_l1_l11-supply:
+- vdd_l6_l12_l14_l15_l26-supply:
+- vdd_l16_l25-supply:
+- vdd_l17-supply:
+- vdd_l18-supply:
+- vdd_l19-supply:
+- vdd_l21-supply:
+- vdd_l22-supply:
+- vdd_l16_l25-supply:
+- vdd_l27-supply:
+- vdd_l28-supply:
+- vdd_l29-supply:
+- vdd_l30-supply:
+- vdd_l31-supply:
+- vdd_l32-supply:
+	Usage: optional (pm8994 only)
+	Value type: <phandle>
+	Definition: reference to regulator supplying the input pin, as
+		    described in the data sheet.
+
+
 The regulator node houses sub-nodes for each regulator within the device. Each
 sub-node is identified using the node's name, with valid values listed for each
 of the pmics below.
@@ -118,6 +153,11 @@  pma8084:
 	l6, l7, l8, l9, l10, l11, l12, l13, l14, l15, l16, l17, l18, l19, l20,
 	l21, l22, l23, l24, l25, l26, l27, lvs1, lvs2, lvs3, lvs4, 5vs1
 
+pm8994:
+	s1, s2, s3, s4, s5, s6, s7, l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11,
+	l12, l13, l14, l15, l16, l17, l18, l19, l20, l21, l22, l23, l24, l25, l26,
+	l27, l28, l29, l30, l31, l32, lvs1, lvs2
+
 The content of each sub-node is defined by the standard binding for regulators -
 see regulator.txt.
 
diff --git a/arch/arm64/boot/dts/qcom/msm8992-bullhead-rev-101.dts b/arch/arm64/boot/dts/qcom/msm8992-bullhead-rev-101.dts
index 4542133..3fc9a33 100644
--- a/arch/arm64/boot/dts/qcom/msm8992-bullhead-rev-101.dts
+++ b/arch/arm64/boot/dts/qcom/msm8992-bullhead-rev-101.dts
@@ -39,3 +39,5 @@ 
 		};
 	};
 };
+
+#include "msm8994-smd-rpm.dtsi"
diff --git a/arch/arm64/boot/dts/qcom/msm8992-pins.dtsi b/arch/arm64/boot/dts/qcom/msm8992-pins.dtsi
index d2a26f0..d3ae5ab 100644
--- a/arch/arm64/boot/dts/qcom/msm8992-pins.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8992-pins.dtsi
@@ -35,4 +35,86 @@ 
 			bias-pull-down;
 		};
 	};
+
+	/* 0-3 for sdc1 4-6 for sdc2 */
+	/* Order of pins */
+	/* SDC1: CLK -> 0, CMD -> 1, DATA -> 2, RCLK -> 3 */
+	/* SDC2: CLK -> 4, CMD -> 5, DATA -> 6 */
+	pmx-sdc1-clk {
+		sdc1_clk_on: clk-on {
+			pinmux {
+				pins = "sdc1_clk";
+			};
+			pinconf {
+				pins = "sdc1_clk";
+				bias-disable = <0>; /* No pull */
+				drive-strength = <16>; /* 16mA */
+			};
+		};
+		sdc1_clk_off: clk-off {
+			pinmux {
+				pins = "sdc1_clk";
+			};
+			pinconf {
+				pins = "sdc1_clk";
+				bias-disable = <0>; /* No pull */
+				drive-strength = <2>; /* 2mA */
+			};
+		};
+	};
+
+	pmx-sdc1-cmd {
+		sdc1_cmd_on: cmd-on {
+			pinmux {
+				pins = "sdc1_cmd";
+			};
+			pinconf {
+				pins = "sdc1_cmd";
+				bias-pull-up;
+				drive-strength = <8>;
+			};
+		};
+		sdc1_cmd_off: cmd-off {
+			pinmux {
+				pins = "sdc1_cmd";
+			};
+			pinconf {
+				pins = "sdc1_cmd";
+				bias-pull-up = <0x3>; /* same as 3.10 ?? */
+				drive-strength = <2>; /* 2mA */
+			};
+		};
+	};
+
+	pmx-sdc1-data {
+		sdc1_data_on: data-on {
+			pinmux {
+				pins = "sdc1_data";
+			};
+			pinconf {
+				pins = "sdc1_data";
+				bias-pull-up;
+				drive-strength = <8>; /* 8mA */
+			};
+		};
+		sdc1_data_off: data-off {
+			pinmux {
+				pins = "sdc1_data";
+			};
+			pinconf {
+				pins = "sdc1_data";
+				bias-pull-up;
+				drive-strength = <2>;
+			};
+		};
+	};
+
+	pmx-sdc1-rclk {
+		sdc1_rclk_on: rclk-on {
+			bias-pull-down; /* pull down */
+		};
+		sdc1_rclk_off: rclk-off {
+			bias-pull-down; /* pull down */
+		};
+	};
 };
diff --git a/arch/arm64/boot/dts/qcom/msm8992.dtsi b/arch/arm64/boot/dts/qcom/msm8992.dtsi
index 44b2d37..77edffc 100644
--- a/arch/arm64/boot/dts/qcom/msm8992.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8992.dtsi
@@ -82,6 +82,12 @@ 
 				<0xf9002000 0x1000>;
 		};
 
+		apcs: syscon@f900d000 {
+			compatible = "syscon";
+			reg = <0xf900d000 0x2000>;
+		};
+
+
 		timer@f9020000 {
 			#address-cells = <1>;
 			#size-cells = <1>;
@@ -172,12 +178,159 @@ 
 			#power-domain-cells = <1>;
 			reg = <0xfc400000 0x2000>;
 		};
+
+		sdhci1: mmc@f9824900 {
+			compatible = "qcom,sdhci-msm-v4";
+			reg = <0xf9824900 0x1a0>, <0xf9824000 0x800>;
+			reg-names = "hc_mem", "core_mem";
+
+			interrupts = <GIC_SPI 123 IRQ_TYPE_NONE>,
+					<GIC_SPI 138 IRQ_TYPE_NONE>;
+			interrupt-names = "hc_irq", "pwr_irq";
+
+			clocks = <&clock_gcc GCC_SDCC1_APPS_CLK>,
+				<&clock_gcc GCC_SDCC1_AHB_CLK>;
+			clock-names = "core", "iface";
+
+			pinctrl-names = "default", "sleep";
+			pinctrl-0 = <&sdc1_clk_on &sdc1_cmd_on &sdc1_data_on
+					&sdc1_rclk_on>;
+			pinctrl-1 = <&sdc1_clk_off &sdc1_cmd_off &sdc1_data_off
+					&sdc1_rclk_off>;
+
+			vdd-supply = <&pm8994_l20>;
+			qcom,vdd-voltage-level = <2950000 2950000>;
+			qcom,vdd-current-level = <200 570000>;
+
+			vdd-io-supply = <&pm8994_s4>;
+			qcom,vdd-io-voltage-level = <1800000 1800000>;
+			qcom,vdd-io-current-level = <200 325000>;
+
+			regulator-always-on;
+			bus-width = <8>;
+			mmc-hs400-1_8v;
+			status = "okay";
+		};
+
+		vreg_vph_pwr: vreg-vph-pwr {
+			compatible = "regulator-fixed";
+			status = "okay";
+			regulator-name = "vph-pwr";
+
+			regulator-min-microvolt = <3600000>;
+			regulator-max-microvolt = <3600000>;
+
+			regulator-always-on;
+		};
+
+		rpm_msg_ram: memory@fc428000 {
+			compatible = "qcom,rpm-msg-ram";
+			reg = <0xfc428000 0x4000>;
+		};
+
+		sfpb_mutex_regs: syscon@fd484000 {
+			#address-cells = <1>;
+			#size-cells = <1>;
+			compatible = "syscon";
+			reg = <0xfd484000 0x400>;
+		};
+
+		sfpb_mutex: hwmutex {
+			compatible = "qcom,sfpb-mutex";
+			syscon = <&sfpb_mutex_regs 0x0 0x100>;
+			#hwlock-cells = <1>;
+		};
+
+		smem {
+			compatible = "qcom,smem";
+			memory-region = <&smem_region>;
+			qcom,rpm-msg-ram = <&rpm_msg_ram>;
+			hwlocks = <&sfpb_mutex 3>;
+		};
 	};
 
 	memory {
 		device_type = "memory";
 		reg = <0 0 0 0>; // bootloader will update
 	};
+
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		smem_region: smem@6a00000 {
+			reg = <0x0 0x6a00000 0x0 0x200000>;
+			no-map;
+		};
+	};
+
+	smd_rpm: smd {
+		compatible = "qcom,smd";
+
+		rpm {
+			interrupts = <GIC_SPI 168 IRQ_TYPE_EDGE_RISING>;
+			qcom,ipc = <&apcs 8 0>;
+			qcom,smd-edge = <15>;
+			qcom,local-pid = <0>;
+			qcom,remote-pid = <6>;
+
+			rpm-requests {
+				compatible = "qcom,rpm-msm8994";
+				qcom,smd-channels = "rpm_requests";
+
+				rpmcc: qcom,rpmcc {
+					/* TODO: update when rpmcc-msm8994 support added */
+					compatible = "qcom,rpmcc-msm8916",
+							"qcom,rpmcc";
+					#clock-cells = <1>;
+				};
+
+				smd_rpm_regulators: pm8994-regulators {
+					compatible = "qcom,rpm-pm8994-regulators";
+
+					pm8994_s1: s1 {};
+					pm8994_s2: s2 {};
+					pm8994_s3: s3 {};
+					pm8994_s4: s4 {};
+					pm8994_s5: s5 {};
+					pm8994_s6: s6 {};
+					pm8994_s7: s7 {};
+
+					pm8994_l1: l1 {};
+					pm8994_l2: l2 {};
+					pm8994_l3: l3 {};
+					pm8994_l4: l4 {};
+					pm8994_l6: l6 {};
+					pm8994_l8: l8 {};
+					pm8994_l9: l9 {};
+					pm8994_l10: l10 {};
+					pm8994_l11: l11 {};
+					pm8994_l12: l12 {};
+					pm8994_l13: l13 {};
+					pm8994_l14: l14 {};
+					pm8994_l15: l15 {};
+					pm8994_l16: l16 {};
+					pm8994_l17: l17 {};
+					pm8994_l18: l18 {};
+					pm8994_l19: l19 {};
+					pm8994_l20: l20 {};
+					pm8994_l21: l21 {};
+					pm8994_l22: l22 {};
+					pm8994_l23: l23 {};
+					pm8994_l24: l24 {};
+					pm8994_l25: l25 {};
+					pm8994_l26: l26 {};
+					pm8994_l27: l27 {};
+					pm8994_l28: l28 {};
+					pm8994_l29: l29 {};
+					pm8994_l30: l30 {};
+					pm8994_l31: l31 {};
+					pm8994_l32: l32 {};
+				};
+			};
+		};
+	};
 };
 
 
diff --git a/arch/arm64/boot/dts/qcom/msm8994-smd-rpm.dtsi b/arch/arm64/boot/dts/qcom/msm8994-smd-rpm.dtsi
new file mode 100644
index 0000000..d556aae
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/msm8994-smd-rpm.dtsi
@@ -0,0 +1,276 @@ 
+/* Copyright (c) 2015, LGE Inc. All rights reserved.
+ * Copyright (c) 2016, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * 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.
+ */
+
+&smd_rpm {
+	rpm {
+		rpm_requests {
+			pm8994-regulators {
+
+				vdd_l1-supply = <&pm8994_s1>;
+				vdd_l2_26_28-supply = <&pm8994_s3>;
+				vdd_l3_11-supply = <&pm8994_s3>;
+				vdd_l4_27_31-supply = <&pm8994_s3>;
+				vdd_l5_7-supply = <&pm8994_s3>;
+				vdd_l6_12_32-supply = <&pm8994_s5>;
+				vdd_l8_16_30-supply = <&vreg_vph_pwr>;
+				vdd_l9_10_18_22-supply = <&vreg_vph_pwr>;
+				vdd_l13_19_23_24-supply = <&vreg_vph_pwr>;
+				vdd_l14_15-supply = <&pm8994_s5>;
+				vdd_l17_29-supply = <&vreg_vph_pwr>;
+				vdd_l20_21-supply = <&vreg_vph_pwr>;
+				vdd_l25-supply = <&pm8994_s5>;
+				/*vin_lvs1_2 = <&pm8994_s4>; */
+
+				s1 {
+					regulator-min-microvolt = <800000>;
+					regulator-max-microvolt = <800000>;
+				};
+
+				s2 {
+					/* TODO */
+				};
+
+				s3 {
+					regulator-min-microvolt = <1300000>;
+					regulator-max-microvolt = <1300000>;
+				};
+
+				s4 {
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					regulator-allow-set-load;
+					regulator-system-load = <325000>;
+				};
+
+				s5 {
+					regulator-min-microvolt = <2150000>;
+					regulator-max-microvolt = <2150000>;
+				};
+
+				s7 {
+					regulator-min-microvolt = <1000000>;
+					regulator-max-microvolt = <1000000>;
+				};
+
+				l1 {
+					regulator-min-microvolt = <1000000>;
+					regulator-max-microvolt = <1000000>;
+				};
+
+				l2 {
+					regulator-min-microvolt = <1250000>;
+					regulator-max-microvolt = <1250000>;
+				};
+
+				l3 {
+					regulator-min-microvolt = <1200000>;
+					regulator-max-microvolt = <1200000>;
+				};
+
+				l4 {
+					regulator-min-microvolt = <1225000>;
+					regulator-max-microvolt = <1225000>;
+				};
+
+				l5 {
+					/* TODO */
+				};
+
+				l6 {
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+				};
+
+				l7 {
+					/* TODO */
+				};
+
+				l8 {
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+				};
+
+				l9 {
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+				};
+
+				l10 {
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					qcom,init-voltage = <1800000>;
+				};
+
+				l11 {
+					regulator-min-microvolt = <1200000>;
+					regulator-max-microvolt = <1200000>;
+					qcom,init-voltage = <1200000>;
+				};
+
+				l12 {
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					qcom,init-voltage = <1800000>;
+					proxy-supply = <&pm8994_l12>;
+					qcom,proxy-consumer-enable;
+					qcom,proxy-consumer-current = <10000>;
+					status = "okay";
+				};
+
+				l13 {
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <2950000>;
+					qcom,init-voltage = <2950000>;
+					status = "okay";
+				};
+
+				l14 {
+					regulator-min-microvolt = <1200000>;
+					regulator-max-microvolt = <1200000>;
+					qcom,init-voltage = <1200000>;
+					proxy-supply = <&pm8994_l14>;
+					qcom,proxy-consumer-enable;
+					qcom,proxy-consumer-current = <10000>;
+					status = "okay";
+				};
+
+				l15 {
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					qcom,init-voltage = <1800000>;
+					status = "okay";
+				};
+
+				l16 {
+					regulator-min-microvolt = <2700000>;
+					regulator-max-microvolt = <2700000>;
+					qcom,init-voltage = <2700000>;
+					status = "okay";
+				};
+
+				l17 {
+					regulator-min-microvolt = <2700000>;
+					regulator-max-microvolt = <2700000>;
+					qcom,init-voltage = <2700000>;
+					status = "okay";
+				};
+
+				l18 {
+					regulator-min-microvolt = <3000000>;
+					regulator-max-microvolt = <3000000>;
+					regulator-always-on;
+					qcom,init-voltage = <3000000>;
+					qcom,init-ldo-mode = <1>;
+				};
+
+				l19 {
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					qcom,init-voltage = <1800000>;
+					status = "okay";
+				};
+
+				l20 {
+					regulator-min-microvolt = <2950000>;
+					regulator-max-microvolt = <2950000>;
+					regulator-always-on;
+					regulator-boot-on;
+					regulator-allow-set-load;
+					regulator-system-load = <570000>;
+				};
+
+				l21 {
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					regulator-always-on;
+					qcom,init-voltage = <1800000>;
+				};
+
+				l22 {
+					regulator-min-microvolt = <3100000>;
+					regulator-max-microvolt = <3100000>;
+					qcom,init-voltage = <3100000>;
+				};
+
+				l23 {
+					regulator-min-microvolt = <2800000>;
+					regulator-max-microvolt = <2800000>;
+					qcom,init-voltage = <2800000>;
+				};
+
+				l24 {
+					regulator-min-microvolt = <3075000>;
+					regulator-max-microvolt = <3150000>;
+					qcom,init-voltage = <3075000>;
+				};
+
+				l25 {
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					qcom,init-voltage = <1800000>;
+				};
+
+				l26 {
+					/* TODO: value from downstream
+					regulator-min-microvolt = <987500>;
+					fails to apply */
+				};
+
+				l27 {
+					regulator-min-microvolt = <1050000>;
+					regulator-max-microvolt = <1050000>;
+					qcom,init-voltage = <1050000>;
+				};
+
+				l28 {
+					regulator-min-microvolt = <1000000>;
+					regulator-max-microvolt = <1000000>;
+					qcom,init-voltage = <1000000>;
+					proxy-supply = <&pm8994_l28>;
+					qcom,proxy-consumer-enable;
+					qcom,proxy-consumer-current = <10000>;
+				};
+
+				l29 {
+					/* TODO: Unsupported voltage range.
+					regulator-min-microvolt = <2800000>;
+					regulator-max-microvolt = <2800000>;
+					qcom,init-voltage = <2800000>;
+					*/
+				};
+
+				l30 {
+					/* TODO: get this verified
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					qcom,init-voltage = <1800000>;
+					*/
+				};
+
+				l31 {
+					regulator-min-microvolt = <1262500>;
+					regulator-max-microvolt = <1262500>;
+					qcom,init-voltage = <1262500>;
+				};
+
+				l32 {
+					/* TODO: get this verified
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					qcom,init-voltage = <1800000>;
+					*/
+				};
+			};
+		};
+	};
+};
diff --git a/drivers/regulator/qcom_smd-regulator.c b/drivers/regulator/qcom_smd-regulator.c
index 8ed46a9..a7e8ce7 100644
--- a/drivers/regulator/qcom_smd-regulator.c
+++ b/drivers/regulator/qcom_smd-regulator.c
@@ -443,11 +443,60 @@  static const struct rpm_regulator_data rpm_pma8084_regulators[] = {
 	{}
 };
 
+static const struct rpm_regulator_data rpm_pm8994_regulators[] = {
+	{ "s1", QCOM_SMD_RPM_SMPA, 1, &pma8084_ftsmps, "vdd_s1" },
+	{ "s2", QCOM_SMD_RPM_SMPA, 2, &pma8084_ftsmps, "vdd_s2" },
+	{ "s3", QCOM_SMD_RPM_SMPA, 3, &pma8084_hfsmps, "vdd_s3" },
+	{ "s4", QCOM_SMD_RPM_SMPA, 4, &pma8084_hfsmps, "vdd_s4" },
+	{ "s5", QCOM_SMD_RPM_SMPA, 5, &pma8084_hfsmps, "vdd_s5" },
+	{ "s6", QCOM_SMD_RPM_SMPA, 6, &pma8084_ftsmps, "vdd_s6" },
+	{ "s7", QCOM_SMD_RPM_SMPA, 7, &pma8084_ftsmps, "vdd_s7" },
+
+	{ "l1", QCOM_SMD_RPM_LDOA, 1, &pma8084_nldo, "vdd_l1_l11" },
+	{ "l2", QCOM_SMD_RPM_LDOA, 2, &pma8084_nldo, "vdd_l2_l3_l4_l27" },
+	{ "l3", QCOM_SMD_RPM_LDOA, 3, &pma8084_nldo, "vdd_l2_l3_l4_l27" },
+	{ "l4", QCOM_SMD_RPM_LDOA, 4, &pma8084_nldo, "vdd_l2_l3_l4_l27" },
+	{ "l5", QCOM_SMD_RPM_LDOA, 5, &pma8084_pldo, "vdd_l5_l7" },
+	{ "l6", QCOM_SMD_RPM_LDOA, 6, &pma8084_pldo, "vdd_l6_l12_l14_l15_l26" },
+	{ "l7", QCOM_SMD_RPM_LDOA, 7, &pma8084_pldo, "vdd_l5_l7" },
+	{ "l8", QCOM_SMD_RPM_LDOA, 8, &pma8084_pldo, "vdd_l8" },
+	{ "l9", QCOM_SMD_RPM_LDOA, 9, &pma8084_pldo, "vdd_l9_l10_l13_l20_l23_l24" },
+	{ "l10", QCOM_SMD_RPM_LDOA, 10, &pma8084_pldo, "vdd_l9_l10_l13_l20_l23_l24" },
+	{ "l11", QCOM_SMD_RPM_LDOA, 11, &pma8084_nldo, "vdd_l1_l11" },
+	{ "l12", QCOM_SMD_RPM_LDOA, 12, &pma8084_pldo, "vdd_l6_l12_l14_l15_l26" },
+	{ "l13", QCOM_SMD_RPM_LDOA, 13, &pma8084_pldo, "vdd_l9_l10_l13_l20_l23_l24" },
+	{ "l14", QCOM_SMD_RPM_LDOA, 14, &pma8084_pldo, "vdd_l6_l12_l14_l15_l26" },
+	{ "l15", QCOM_SMD_RPM_LDOA, 15, &pma8084_pldo, "vdd_l6_l12_l14_l15_l26" },
+	{ "l16", QCOM_SMD_RPM_LDOA, 16, &pma8084_pldo, "vdd_l16_l25" },
+	{ "l17", QCOM_SMD_RPM_LDOA, 17, &pma8084_pldo, "vdd_l17" },
+	{ "l18", QCOM_SMD_RPM_LDOA, 18, &pma8084_pldo, "vdd_l18" },
+	{ "l19", QCOM_SMD_RPM_LDOA, 19, &pma8084_pldo, "vdd_l19" },
+	{ "l20", QCOM_SMD_RPM_LDOA, 20, &pma8084_pldo, "vdd_l9_l10_l13_l20_l23_l24" },
+	{ "l21", QCOM_SMD_RPM_LDOA, 21, &pma8084_pldo, "vdd_l21" },
+	{ "l22", QCOM_SMD_RPM_LDOA, 22, &pma8084_pldo, "vdd_l22" },
+	{ "l23", QCOM_SMD_RPM_LDOA, 23, &pma8084_pldo, "vdd_l9_l10_l13_l20_l23_l24" },
+	{ "l24", QCOM_SMD_RPM_LDOA, 24, &pma8084_pldo, "vdd_l9_l10_l13_l20_l23_l24" },
+	{ "l25", QCOM_SMD_RPM_LDOA, 25, &pma8084_pldo, "vdd_l16_l25" },
+	{ "l26", QCOM_SMD_RPM_LDOA, 26, &pma8084_pldo, "vdd_l6_l12_l14_l15_l26" },
+	{ "l27", QCOM_SMD_RPM_LDOA, 27, &pma8084_nldo, "vdd_l27" },
+	{ "l28", QCOM_SMD_RPM_LDOA, 28, &pma8084_nldo, "vdd_l28" },
+	{ "l29", QCOM_SMD_RPM_LDOA, 29, &pma8084_nldo, "vdd_l29" },
+	{ "l30", QCOM_SMD_RPM_LDOA, 30, &pma8084_nldo, "vdd_l30" },
+	{ "l31", QCOM_SMD_RPM_LDOA, 31, &pma8084_nldo, "vdd_l31" },
+	{ "l32", QCOM_SMD_RPM_LDOA, 32, &pma8084_nldo, "vdd_l32" },
+
+	{ "lvs1", QCOM_SMD_RPM_VSA, 1, &pma8084_switch },
+	{ "lvs2", QCOM_SMD_RPM_VSA, 2, &pma8084_switch },
+
+	{}
+};
+
 static const struct of_device_id rpm_of_match[] = {
 	{ .compatible = "qcom,rpm-pm8841-regulators", .data = &rpm_pm8841_regulators },
 	{ .compatible = "qcom,rpm-pm8916-regulators", .data = &rpm_pm8916_regulators },
 	{ .compatible = "qcom,rpm-pm8941-regulators", .data = &rpm_pm8941_regulators },
 	{ .compatible = "qcom,rpm-pma8084-regulators", .data = &rpm_pma8084_regulators },
+	{ .compatible = "qcom,rpm-pm8994-regulators", .data = &rpm_pm8994_regulators },
 	{}
 };
 MODULE_DEVICE_TABLE(of, rpm_of_match);