Commit a133f5bc authored by Linus Walleij's avatar Linus Walleij Committed by Jonathan Cameron
Browse files

mfd: ab8500: Augment DT bindings 



As we migrate the AB8500 GPADC driver to use IIO, we need to augment
the bindings to account for defining the ADC channels in the device
tree.

Cc: devicetree@vger.kernel.org
Acked-by: default avatarLee Jones <lee.jones@linaro.org>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent d17e86cb

Documentation/devicetree/bindings/mfd/ab8500.txt

+119 −0
Original line number Diff line number Diff line
@@ -69,6 +69,18 @@ Required child device properties: 
- compatible             : "stericsson,ab8500-[bm|btemp|charger|fg|gpadc|gpio|ponkey|

                                               pwm|regulator|rtc|sysctrl|usb]";



  A few child devices require ADC channels from the GPADC node. Those follow the

  standard bindings from iio/iio-bindings.txt and iio/adc/adc.txt



  abx500-temp		 : io-channels "aux1" and "aux2" for measuring external

			   temperatures.

  ab8500-fg		 : io-channel "main_bat_v" for measuring main battery voltage,

  ab8500-btemp		 : io-channels "btemp_ball" and "bat_ctrl" for measuring the

			   battery voltage.

  ab8500-charger	 : io-channels "main_charger_v", "main_charger_c", "vbus_v",

			   "usb_charger_c" for measuring voltage and current of the

			   different charging supplies.



Optional child device properties:

- interrupts             : contains the device IRQ(s) using the 2-cell format (see above)

- interrupt-names        : contains names of IRQ resource in the order in which they were
@@ -102,6 +114,113 @@ ab8500 { 
                              39 0x4>;

                interrupt-names = "HW_CONV_END", "SW_CONV_END";

                vddadc-supply = <&ab8500_ldo_tvout_reg>;

		#address-cells = <1>;

		#size-cells = <0>;

		#io-channel-cells = <1>;



		/* GPADC channels */

		bat_ctrl: channel@1 {

			reg = <0x01>;

		};

		btemp_ball: channel@2 {

			reg = <0x02>;

		};

		main_charger_v: channel@3 {

			reg = <0x03>;

		};

		acc_detect1: channel@4 {

			reg = <0x04>;

		};

		acc_detect2: channel@5 {

			reg = <0x05>;

		};

		adc_aux1: channel@6 {

			reg = <0x06>;

		};

		adc_aux2: channel@7 {

			reg = <0x07>;

		};

		main_batt_v: channel@8 {

			reg = <0x08>;

		};

		vbus_v: channel@9 {

			reg = <0x09>;

		};

		main_charger_c: channel@a {

			reg = <0x0a>;

		};

		usb_charger_c: channel@b {

			reg = <0x0b>;

		};

		bk_bat_v: channel@c {

			reg = <0x0c>;

		};

		die_temp: channel@d {

			reg = <0x0d>;

		};

		usb_id: channel@e {

			reg = <0x0e>;

		};

		xtal_temp: channel@12 {

			reg = <0x12>;

		};

		vbat_true_meas: channel@13 {

			reg = <0x13>;

		};

		bat_ctrl_and_ibat: channel@1c {

			reg = <0x1c>;

		};

		vbat_meas_and_ibat: channel@1d {

			reg = <0x1d>;

		};

		vbat_true_meas_and_ibat: channel@1e {

			reg = <0x1e>;

		};

		bat_temp_and_ibat: channel@1f {

			reg = <0x1f>;

		};

        };



	ab8500_temp {

		compatible = "stericsson,abx500-temp";

		io-channels = <&gpadc 0x06>,

			      <&gpadc 0x07>;

		io-channel-name = "aux1", "aux2";

	};



	ab8500_battery: ab8500_battery {

		stericsson,battery-type = "LIPO";

		thermistor-on-batctrl;

	};



	ab8500_fg {

		compatible = "stericsson,ab8500-fg";

		battery	   = <&ab8500_battery>;

		io-channels = <&gpadc 0x08>;

		io-channel-name = "main_bat_v";

	};



	ab8500_btemp {

		compatible = "stericsson,ab8500-btemp";

		battery	   = <&ab8500_battery>;

		io-channels = <&gpadc 0x02>,

			      <&gpadc 0x01>;

		io-channel-name = "btemp_ball",

				"bat_ctrl";

	};



	ab8500_charger {

		compatible	= "stericsson,ab8500-charger";

		battery		= <&ab8500_battery>;

		vddadc-supply	= <&ab8500_ldo_tvout_reg>;

		io-channels = <&gpadc 0x03>,

			      <&gpadc 0x0a>,

			      <&gpadc 0x09>,

			      <&gpadc 0x0b>;

		io-channel-name = "main_charger_v",

				"main_charger_c",

				"vbus_v",

				"usb_charger_c";

	};



        ab8500-usb {

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