From 70016ef0bd8694a4b83c6552807c0ad2bbf7155a Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 10 Jan 2017 23:50:52 +0100 Subject: ARM: dts: ux500: declare GPADC IIO ADC channels This adds the IIO channels for the GPADC after converting it to using the standard IIO ADC bindings and moving the driver over to the IIO subsystem. We also add IIO hwmon standard driver node to support reading channels in a standard manner. Signed-off-by: Linus Walleij --- arch/arm/boot/dts/ste-ab8500.dtsi | 102 +++++++++++++++++++++++++++++++++++++- 1 file changed, 101 insertions(+), 1 deletion(-) (limited to 'arch/arm/boot/dts/ste-ab8500.dtsi') diff --git a/arch/arm/boot/dts/ste-ab8500.dtsi b/arch/arm/boot/dts/ste-ab8500.dtsi index 55fff4d44277..14d4d8617d75 100644 --- a/arch/arm/boot/dts/ste-ab8500.dtsi +++ b/arch/arm/boot/dts/ste-ab8500.dtsi @@ -6,6 +6,20 @@ #include / { + /* Essential housekeeping hardware monitors */ + iio-hwmon { + compatible = "iio-hwmon"; + io-channels = <&gpadc 0x02>, /* Battery temperature */ + <&gpadc 0x03>, /* Main charger voltage */ + <&gpadc 0x08>, /* Main battery voltage */ + <&gpadc 0x09>, /* VBUS */ + <&gpadc 0x0a>, /* Main charger current */ + <&gpadc 0x0b>, /* USB charger current */ + <&gpadc 0x0c>, /* Backup battery voltage */ + <&gpadc 0x0d>, /* Die temperature */ + <&gpadc 0x12>; /* Crystal temperature */ + }; + soc { prcmu@80157000 { ab8500 { @@ -33,12 +47,84 @@ interrupt-names = "60S", "ALARM"; }; - ab8500-gpadc { + gpadc: ab8500-gpadc { compatible = "stericsson,ab8500-gpadc"; interrupts = <32 IRQ_TYPE_LEVEL_HIGH 39 IRQ_TYPE_LEVEL_HIGH>; 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@01 { + reg = <0x01>; + }; + btemp_ball: channel@02 { + reg = <0x02>; + }; + main_charger_v: channel@03 { + reg = <0x03>; + }; + acc_detect1: channel@04 { + reg = <0x04>; + }; + acc_detect2: channel@05 { + reg = <0x05>; + }; + adc_aux1: channel@06 { + reg = <0x06>; + }; + adc_aux2: channel@07 { + reg = <0x07>; + }; + main_batt_v: channel@08 { + reg = <0x08>; + }; + vbus_v: channel@09 { + reg = <0x09>; + }; + main_charger_c: channel@0a { + reg = <0x0a>; + }; + usb_charger_c: channel@0b { + reg = <0x0b>; + }; + bk_bat_v: channel@0c { + reg = <0x0c>; + }; + die_temp: channel@0d { + reg = <0x0d>; + }; + usb_id: channel@0e { + 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 { @@ -49,17 +135,31 @@ 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_chargalg { -- cgit v1.2.3