| Message ID | 20190903150612.12246-1-linus.walleij@linaro.org |
|---|---|
| State | Superseded |
| Headers | show |
| Series | None | expand |
On Tue, Sep 03, 2019 at 05:06:12PM +0200, Linus Walleij wrote: > 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: Lee Jones <lee.jones@linaro.org> > Signed-off-by: Linus Walleij <linus.walleij@linaro.org> > --- > ChangeLog v2->v3: > - Change "adc-channel@" to "channel@" as per preferred notation. > - Add some full stops to the end of sentences. > - Reference the new ADC-specific documentation for channel specifier > etc. > - Collect Lee's ACK. > ChangeLog v1->v2: > - Rebased on v5.3-rc5 Must have missed the DT list... > --- > .../devicetree/bindings/mfd/ab8500.txt | 119 ++++++++++++++++++ > 1 file changed, 119 insertions(+) > > diff --git a/Documentation/devicetree/bindings/mfd/ab8500.txt b/Documentation/devicetree/bindings/mfd/ab8500.txt > index cd9e90c5d171..ff517e5d7ee0 100644 > --- a/Documentation/devicetree/bindings/mfd/ab8500.txt > +++ b/Documentation/devicetree/bindings/mfd/ab8500.txt > @@ -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. s/_/-/ for node names. > + > 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 > @@ -102,8 +114,115 @@ 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@01 { Drop leading 0s. dtc should give you warnings for this. > + reg = <0x01>; > + }; I guess these nodes aren't new, but why do you need them other than defining how many ADC channels. > + 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 { > + 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 { > compatible = "stericsson,ab8500-usb"; > interrupts = < 90 0x4 > -- > 2.21.0 >
diff --git a/Documentation/devicetree/bindings/mfd/ab8500.txt b/Documentation/devicetree/bindings/mfd/ab8500.txt index cd9e90c5d171..ff517e5d7ee0 100644 --- a/Documentation/devicetree/bindings/mfd/ab8500.txt +++ b/Documentation/devicetree/bindings/mfd/ab8500.txt @@ -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 @@ -102,8 +114,115 @@ 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@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 { + 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 { compatible = "stericsson,ab8500-usb"; interrupts = < 90 0x4