Merge "ARM: dts: msm: Initial device tree changes for MSM8909"

PMIC supply(S1) current limiting driver(SUPPLY_LM)

=====================================

This driver is a current limit management module to help manage

instantaneous peak current drawn by multiple subsystems on shared

supply. The inputs to the mitigation algorithm are current states

of different subsystems sharing this supply like cpu frequency,

gpu frequency, number of cores online, soc temperature, core leakage,

and modem state. It throttles cpu frequency and limits number of

online cores to reduce the dynamic current so as to keep the total

current drawn from supply in safe limits.

The device tree parameters for SUPPLY_LM driver are:

Required parameters:

- compatible :	Must be "qcom,supply-lm"

- interrupts :	SUPPLY_LM modem to apps interrupt details.

- reg :         Base addresses of the SUPPLY_LM modem interrupt data and

		its size in bytes.

- reg-names :   Name of SUPPLY_LM modem register in reg node.

- qcom,supply-lm-very-hot-temp-range : SUPPLY_LM very hot temperature range

		info. It expects trigger and clear thresholds in order.

- qcom,supply-lm-hot-temp-range : SUPPLY_LM hot temperature range info.

		It expects trigger and clear thresholds in order.

- gpu-dev-opp:	Phandle for gpu dev.

Example:

	qcom,supply-lm {

		compatible = "qcom,supply-lm";

		interrupts = <0 133 4>;

		reg =	<0x01946000 0x8>; /* TCSR_TCSR_S1LM_MODEM_TO_APPS_INT and

					   * TCSR_TCSR_S1LM_MODEM_TO_APPS_INT_DATA */

		reg-names = "intr_reg";

		qcom,supply-lm-very-hot-temp-range = <75 72>;

		qcom,supply-lm-hot-temp-range = <65 62>;

		gpu-dev-opp = <&msm_gpu>;

	};

* LPM Workarounds

The required properties are:

- compatible: "qcom,lpm-workarounds"

The optional properties are:

- reg: The physical address and the size of the l1_l2_gcc and l2_pwr_sts

	regitsters of performance cluster.

- reg-names: "l2_pwr_sts" - string to identify l2_pwr_sts physical address.

	     "l1_l2_gcc" - string to identify l1_l2_gcc physical address.

- qcom,lpm-wa-cx-turbo-unvote: Indicates the workaround to unvote CX turbo

	vote when system is coming out of rpm assisted power collaspe.

	lpm-cx-supply is required if this is present.

- lpm-cx-supply:  will hold handle for CX regulator supply which is used

	to unvote.

- qcom,lpm-wa-skip-l2-spm: Due to a hardware bug on 8939 and 8909, secure

	world needs to disable and enable L2 SPM to get the proper context

	in secure watchdog bite cases. With this workaround there is a race

	in programming L2 SPM between HLOS and secure world. This leads to

	stability issues. To avoid this program L2 SPM only in secure world

	based on the L2 mode flag passed. Set lpm-wa-skip-l2-spm node if this

	is required.

- qcom,lpm-wa-dynamic-clock-gating: Due to a hardware bug on 8952, L1/L2 dynamic

	clock gating needs to be enabled by software for performance cluster

	cores and L2. Set lpm-wa-dynamic-clock-gating node if this workaround is

	required.

- qcom,cpu-offline-mask: Dynamic clock gating should be enabled when cluster is

	in L2 PC. Each bit of cpu-offline-mask lists the cpu no. to hotplug by KTM

	driver.

- qcom,non-boot-cpu-index: will hold index of non boot cluster cpu.

- qcom,l1-l2-gcc-secure: indicates L1/L2 clock enabling register is secure.

Example:

qcom,lpm-workarounds {

	compatible = "qcom,lpm-workarounds";

	reg = <0x0B011018 0x4>,

	      <0x0B011088 0x4>;

	reg-names = "l2-pwr-sts", "l1-l2-gcc";

	lpm-cx-supply = <&pm8916_s2_corner>;

	qcom,lpm-wa-cx-turbo-unvote;

	qcom,lpm-wa-skip-l2-spm;

	qcom,lpm-wa-dynamic-clock-gating;

	qcom,cpu-offline-mask = "0xF";

	qcom,non-boot-cpu-index = <4>;

}

- MDM9607

  compatible = "qcom,mdm9607"

- MSM8909

  compatible = "qcom,apq8009"

Generic board variants:

- CDP device:

compatible = "qcom,mdmcalifornium-sim"

compatible = "qcom,mdmcalifornium-cdp"

compatible = "qcom,mdmcalifornium-mtp"

compatible = "qcom,apq8009-cdp"

compatible = "qcom,apq8009-mtp"

IOMMU Domains

An IOMMU domain is a collection of IOMMU context banks and an optional

virtual address space that is to be used with the domain. Domains that are

defined will be created at bootup and associated with an iommu group. Clients

can then refer to the iommu group and perform operations on the iommu group

instead of individual devices/contexts.

Required properties

- compatible: "qcom,iommu-domains"

- At least one child that defines a domain is required with the

  following properties:

	- label: Name of the domain

	- qcom,iommu-contexts: List of phandles to context that belongs to

	  this domain.

	Optional properties

		- qcom,virtual-addr-pool: List of <start_address size> pairs

		  that define the virtual address space for this domain.

		- qcom,secure-domain: boolean indicating that this is a secure

		  domain that is to be programmed by Trustzone.

		- qcom,l2-redirect: boolean indicating that page tables should

		  be cached in L2 cache.

Example:

	qcom,iommu-domains {

		compatible = "qcom,iommu-domains";

		qcom,iommu-domain1 {

			label = "lpass_secure";

			qcom,iommu-contexts = <&lpass_q6_fw>;

			qcom,virtual-addr-pool = <0x00000000 0x0FFFFFFF

						  0xF0000000 0x0FFFFFFF>;

		};

		qcom,iommu-domain2 {

			label = "lpass_audio";

			qcom,iommu-contexts = <&lpass_audio_shared>;

			qcom,virtual-addr-pool = <0x10000000 0x0FFFFFFF>;

		};

		qcom,iommu-domain3 {

			label = "lpass_video";

			qcom,iommu-contexts = <&lpass_video_shared>;

			qcom,virtual-addr-pool = <0x20000000 0x0FFFFFFF>;

		};

	};

Required properties

- compatible :		Must be "qcom,mdss_mdp"

			- "qcom,mdss_mdp3" for mdp3

- reg :			offset and length of the register set for the device.

- reg-names :		names to refer to register sets related to this device

- interrupts :		Interrupt associated with MDSS.