* Qualcomm MSM CCI

[First level nodes]
Required properties:
- cell-index: cci hardware core index
- compatible :
    - "qcom,cci"
- reg : offset and length of the register set for the device
    for the cci operating in compatible mode.
- reg-names : should specify relevant names to each reg property defined.
- interrupts : should contain the cci interrupt.
- interrupt-names : should specify relevant names to each interrupts
  property defined.
- gpios : should contain phandle to gpio controller node and array of
    #gpio-cells specifying specific gpio (controller specific)
- qcom,gpio-req-tbl-num : should contain index to gpios specific to this sensor
- qcom,gpio-req-tbl-flags : should contain direction of gpios present in
    qcom,gpio-req-tbl-num property (in the same order)
- qcom,gpio-req-tbl-label : should contain name of gpios present in
    qcom,gpio-req-tbl-num property (in the same order)
- clock-names: name of the clocks required for the device
- clock-rates: clock rate in Hz

Optional properties:
- qcom,cam-vreg-name : name of the voltage regulators required for the device.
- gdscr-supply : should contain gdsr regulator used for cci clocks.
- mmagic-supply : should contain mmagic regulator used for mmagic clocks.

- I2c speed settings (*)
	- i2c_freq_100Khz: qcom,i2c_standard_mode - node should contain clock settings for
	    100Khz
	- i2c_freq_400Khz: qcom,i2c_fast_mode - node should contain clock settings for
	    400Khz
	- i2c_freq_custom: qcom,i2c_custom_mode - node can contain clock settings for
	    frequencies other than 100Khz and 400Khz which is specific to usecase.
	    Currently it has settings for 375Khz.
	- i2c_freq_1Mhz: qcom,i2c_fast_plus_mode - node should contain clock
	    settings for 1Mhz
	* if speed settings is not defined the low level driver can use "i2c_freq_custom"
	  like default

[Second level nodes]
* Qualcomm CCI clock settings

Optional properties:
- qcom,hw-thigh : should contain high period of the SCL clock in terms of CCI
    clock cycle
- qcom,hw-tlow : should contain high period of the SCL clock in terms of CCI
    clock cycle
- qcom,hw-tsu-sto : should contain setup time for STOP condition
- qcom,hw-tsu-sta : should contain setup time for Repeated START condition
- qcom,hw-thd-dat : should contain hold time for the data
- qcom,hw-thd-sta : should contain hold time for START condition
- qcom,hw-tbuf : should contain free time between a STOP and a START condition
- qcom,hw-scl-stretch-en : should contain enable or disable clock stretching
- qcom,hw-trdhld : should contain internal hold time for SDA
- qcom,hw-tsp : should contain filtering of glitches

* Qualcomm MSM Sensor

MSM sensor node contains properties of camera sensor

Required properties:
- compatible : should be manufacturer name followed by sensor name
    - "qcom,camera"
    - "shinetech,gc0310"
- reg : should contain i2c slave address of the device
- qcom,csiphy-sd-index : should contain csiphy instance that will used to
    receive sensor data
    - 0, 1, 2
- qcom,csid-sd-index : should contain csid core instance that will used to
    receive sensor data
    - 0, 1, 2, 3
- cam_vdig-supply : should contain regulator from which digital voltage is
    supplied
- cam_vana-supply : should contain regulator from which analog voltage is
    supplied
- cam_vio-supply : should contain regulator from which IO voltage is supplied
- qcom,cam-vreg-name : should contain names of all regulators needed by this
    sensor
    - "cam_vdig", "cam_vana", "cam_vio", "cam_vaf"
- qcom,cam-vreg-min-voltage : should contain minimum voltage level for
    regulators mentioned in qcom,cam-vreg-name property (in the same order)
- qcom,cam-vreg-max-voltage : should contain maximum voltage level for
    regulators mentioned in qcom,cam-vreg-name property (in the same order)
- qcom,cam-vreg-op-mode : should contain optimum voltage level for regulators
    mentioned in qcom,cam-vreg-name property (in the same order)

Optional properties:
- qcom,slave-id : should contain i2c slave address, device id address
    ,expected id read value and device id mask
- qcom,sensor-name : should contain unique sensor name to differentiate from
    other sensor
    - "s5k3l1yx"
- qcom,sensor-mode : should contain sensor mode supported
    - 0 -> back camera 2D
    - 1 -> front camera 2D
    - 2 -> back camera 3D
    - 3 -> back camera int 3D
- qcom,sensor-type : should contain format of data that sensor streams
    - 0 -> bayer format
    - 1 -> yuv format
- qcom,is-vpe : should be enabled if VPE module is required for post processing
    of this sensor
    - 1 if required, 0 otherwise
- qcom,mount-angle : should contain the physical mount angle of the sensor on
    the target
    - 0, 90, 180, 360
- qcom,mclk-23880000 : should be enabled if the supported mclk is 23.88Mhz and
    not 24 Mhz.
- qcom,gpio-no-mux : should contain field to indicate whether gpio mux table is
    available
    - 1 if gpio mux is not available, 0 otherwise
- cam_vaf-supply : should contain regulator from which AF voltage is supplied
- gpios : should contain phandle to gpio controller node and array of
    #gpio-cells specifying specific gpio (controller specific)
- qcom,gpio-reset : should contain index to gpio used by sensors reset_n
- qcom,gpio-standby : should contain index to gpio used by sensors standby_n
- qcom,gpio-vio : should contain index to gpio used by sensors io vreg enable
- qcom,gpio-vana : should contain index to gpio used by sensors analog vreg enable
- qcom,gpio-vdig : should contain index to gpio used by sensors digital vreg enable
- qcom,gpio-vaf : should contain index to gpio used by sensors af vreg enable
- qcom,gpio-af-pwdm : should contain index to gpio used by sensors af pwdm_n
- qcom,gpio-req-tbl-num : should contain index to gpios specific to this sensor
- qcom,gpio-req-tbl-flags : should contain direction of gpios present in
    qcom,gpio-req-tbl-num property (in the same order)
- qcom,gpio-req-tbl-label : should contain name of gpios present in
    qcom,gpio-req-tbl-num property (in the same order)
- qcom,gpio-set-tbl-num : should contain index of gpios that need to be
    configured by msm
- qcom,gpio-set-tbl-flags : should contain value to be configured for the gpios
    present in qcom,gpio-set-tbl-num property (in the same order)
- qcom,gpio-set-tbl-delay : should contain amount of delay after configuring
    gpios as specified in gpio_set_tbl_flags property (in the same order)
- qcom,csi-lane-assign : should contain lane assignment value to map CSIPHY
    lanes to CSID lanes
    - 0x4320
- qcom,csi-lane-mask : should contain lane mask that specifies CSIPHY lanes to
    be enabled
- qcom,csi-phy-sel : should contain CSIPHY core instance from which CSID should
    receive data
- qcom,actuator-cam-name : should contain actuator cam name associated with
    this sensor
    - If actuator does not exist, this property should not be initialized
    - If actuator exist, this field should indicate the index of actuator to
      be used
- qcom,actuator-vcm-pwd : should contain the gpio pin of vcm power to be enabled
    for actuator
- qcom,actuator-vcm-enable : should contain value to be set for actuator vcm
    gpio
- qcom,sensor-position : should contain the mount angle of the camera sensor
    - 0 -> back camera
    - 1 -> front camera
- qcom,cci-master : should contain i2c master id to be used for this camera
    sensor
    - 0 -> MASTER 0
    - 1 -> MASTER 1
- qcom,actuator-src : if auto focus is supported by this sensor, this
   property should contain phandle of respective actuator node
- qcom,led-flash-src : if LED flash is supported by this sensor, this
   property should contain phandle of respective LED flash node
- qcom,vdd-cx-supply : should contain regulator from which cx voltage is
    supplied
- qcom,vdd-cx-name : should contain names of cx regulator
- qcom,eeprom-src : if eeprom memory is supported by this sensor, this
   property should contain phandle of respective eeprom nodes
- qcom,ois-src : if optical image stabilization is supported by this sensor,
   this property should contain phandle of respective ois node

* Qualcomm MSM ACTUATOR

Required properties:
- cell-index : should contain unique identifier to differentiate
    between multiple actuators
- reg : should contain i2c slave address of the actuator and length of
    data field which is 0x0
- compatible :
    - "qcom,actuator"
- qcom,cci-master : should contain i2c master id to be used for this camera
    sensor
    - 0 -> MASTER 0
    - 1 -> MASTER 1

Optional properties:
- qcom,cam-vreg-name : should contain names of all regulators needed by this
    actuator
    - "cam_vaf"
- qcom,cam-vreg-min-voltage : should contain minimum voltage level in mcrovolts
   for regulators mentioned in qcom,cam-vreg-name property (in the same order)
- qcom,cam-vreg-max-voltage : should contain maximum voltage level in mcrovolts
   for regulators mentioned in qcom,cam-vreg-name property (in the same order)
- qcom,cam-vreg-op-mode : should contain the maximum current in microamps
   required from the regulators mentioned in the qcom,cam-vreg-name property
   (in the same order).
- cam_vaf-supply : should contain regulator from which AF voltage is supplied

* Qualcomm MSM OIS

Required properties:
- cell-index : should contain unique identifier to differentiate
    between multiple ois drivers
- reg : should contain i2c slave address of the ois and length of
    data field which is 0x0
- compatible :
    - "qcom,ois"
- qcom,cci-master : should contain i2c master id to be used for this camera
    sensor
    - 0 -> MASTER 0
    - 1 -> MASTER 1

Optional properties:
- qcom,cam-vreg-name : should contain names of all regulators needed by this
    ois
    - "cam_vaf"
- qcom,cam-vreg-min-voltage : should contain minimum voltage level in mcrovolts
   for regulators mentioned in qcom,cam-vreg-name property (in the same order)
- qcom,cam-vreg-max-voltage : should contain maximum voltage level in mcrovolts
   for regulators mentioned in qcom,cam-vreg-name property (in the same order)
- qcom,cam-vreg-op-mode : should contain the maximum current in microamps
   required from the regulators mentioned in the qcom,cam-vreg-name property
   (in the same order).
- cam_vaf-supply : should contain regulator from which ois voltage is supplied

Example:

   qcom,cci@0xfda0c000 {
       cell-index = <0>;
       compatible = "qcom,cci";
       reg = <0xfda0c000 0x300>;
       reg-names = "cci";
       interrupts = <0 50 0>;
       interrupt-names = "cci";
	clock-names = "camss_top_ahb_clk", "vfe_clk_src",
			"camss_vfe_vfe_clk", "iface_clk", "cpp_core_clk",
			"cpp_iface_clk", "cpp_bus_clk", "micro_iface_clk";
	qcom,clock-rates = <0 266670000 0 0 266670000 0 0 0>;
       gpios = <&msmgpio 19 0>,
               <&msmgpio 20 0>,
               <&msmgpio 21 0>,
               <&msmgpio 22 0>;
       qcom,gpio-tbl-num = <0 1 2 3>;
       qcom,gpio-tbl-flags = <1 1 1 1>;
       qcom,gpio-tbl-label = "CCI_I2C_DATA0",
                             "CCI_I2C_CLK0",
                             "CCI_I2C_DATA1",
                             "CCI_I2C_CLK1";
		i2c_freq_100Khz: qcom,i2c_standard_mode {
			status = "disabled";
		};
		i2c_freq_400Khz: qcom,i2c_fast_mode {
			status = "disabled";
		};
		i2c_freq_custom: qcom,i2c_custom_mode {
			status = "disabled";
		};

        actuator0: qcom,actuator@18 {
                cell-index = <0>;
                reg = <0x18>;
		compatible = "qcom,actuator";
		qcom,cci-master = <0>;
		cam_vaf-supply = <&pm8941_l23>;
		qcom,cam-vreg-name = "cam_vaf";
		qcom,cam-vreg-min-voltage = <3000000>;
		qcom,cam-vreg-max-voltage = <3000000>;
		qcom,cam-vreg-op-mode = <100000>;
        };

	qcom,camera@0 {
		cell-index = <0>;
		compatible = "qcom,camera";
		reg = <0x0>;
		qcom,csiphy-sd-index = <0>;
		qcom,csid-sd-index = <0>;
		qcom,mount-angle = <90>;
		qcom,led-flash-src = <&led_flash0>;
		qcom,actuator-src = <&actuator0>;
		qcom,eeprom-src = <&eeprom0>;
		cam_vdig-supply = <&pm8994_s3>;
		cam_vio-supply = <&pm8994_lvs1>;
		cam_vana-supply = <&pm8994_l17>;
		qcom,cam-vreg-name = "cam_vdig", "cam_vio", "cam_vana";
		qcom,cam-vreg-min-voltage = <1300000 0 2500000>;
		qcom,cam-vreg-max-voltage = <1300000 0 2500000>;
		qcom,cam-vreg-op-mode = <105000 0 80000>;
		qcom,gpio-no-mux = <0>;
		pinctrl-names = "cam_default", "cam_suspend";
		pinctrl-0 = <&cam_sensor_mclk0_active &cam_sensor_rear_active>;
		pinctrl-1 = <&cam_sensor_mclk0_suspend &cam_sensor_rear_suspend>;
		gpios = <&tlmm 13 0>,
			<&tlmm 30 0>,
			<&tlmm 29 0>;
		qcom,gpio-reset = <1>;
		qcom,gpio-standby = <2>;
		qcom,gpio-req-tbl-num = <0 1 2>;
		qcom,gpio-req-tbl-flags = <1 0 0>;
		qcom,gpio-req-tbl-label = "CAMIF_MCLK0",
					  "CAM_RESET0",
					  "CAM_STANDBY0";
		qcom,sensor-position = <0>;
		qcom,sensor-mode = <0>;
		qcom,cci-master = <0>;
		status = "ok";
		clocks = <&clock_mmss clk_mclk0_clk_src>,
				<&clock_mmss clk_camss_mclk0_clk>;
		clock-names = "cam_src_clk", "cam_clk";
	};

&i2c_freq_100Khz {
	qcom,hw-thigh = <78>;
	qcom,hw-tlow = <114>;
	qcom,hw-tsu-sto = <28>;
	qcom,hw-tsu-sta = <28>;
	qcom,hw-thd-dat = <10>;
	qcom,hw-thd-sta = <77>;
	qcom,hw-tbuf = <118>;
	qcom,hw-scl-stretch-en = <0>;
	qcom,hw-trdhld = <6>;
	qcom,hw-tsp = <1>;
	status = "ok";
};

&i2c_freq_400Khz {
	qcom,hw-thigh = <20>;
	qcom,hw-tlow = <28>;
	qcom,hw-tsu-sto = <21>;
	qcom,hw-tsu-sta = <21>;
	qcom,hw-thd-dat = <13>;
	qcom,hw-thd-sta = <18>;
	qcom,hw-tbuf = <25>;
	qcom,hw-scl-stretch-en = <0>;
	qcom,hw-trdhld = <6>;
	qcom,hw-tsp = <3>;
	status = "ok";
};

&i2c_freq_custom {
	qcom,hw-thigh = <15>;
	qcom,hw-tlow = <28>;
	qcom,hw-tsu-sto = <21>;
	qcom,hw-tsu-sta = <21>;
	qcom,hw-thd-dat = <13>;
	qcom,hw-thd-sta = <18>;
	qcom,hw-tbuf = <25>;
	qcom,hw-scl-stretch-en = <1>;
	qcom,hw-trdhld = <6>;
	qcom,hw-tsp = <3>;
	status = "ok";
};

&i2c_freq_1Mhz {
	qcom,hw-thigh = <16>;
	qcom,hw-tlow = <22>;
	qcom,hw-tsu-sto = <17>;
	qcom,hw-tsu-sta = <18>;
	qcom,hw-thd-dat = <16>;
	qcom,hw-thd-sta = <15>;
	qcom,hw-tbuf = <19>;
	qcom,hw-scl-stretch-en = <1>;
	qcom,hw-trdhld = <3>;
	qcom,hw-tsp = <3>;
	qcom,cci-clk-src = <37500000>;
	status = "ok";
};