diff options
Diffstat (limited to 'dts/Bindings/power')
| -rw-r--r-- | dts/Bindings/power/bq24257.txt | 53 | ||||
| -rw-r--r-- | dts/Bindings/power/da9150-fg.txt | 23 | ||||
| -rw-r--r-- | dts/Bindings/power/pd-samsung.txt | 52 | ||||
| -rw-r--r-- | dts/Bindings/power/wakeup-source.txt | 71 |
4 files changed, 194 insertions, 5 deletions
diff --git a/dts/Bindings/power/bq24257.txt b/dts/Bindings/power/bq24257.txt index 5c9d3940d0..d693702c9c 100644 --- a/dts/Bindings/power/bq24257.txt +++ b/dts/Bindings/power/bq24257.txt @@ -1,21 +1,64 @@ -Binding for TI bq24257 Li-Ion Charger +Binding for TI bq24250/bq24251/bq24257 Li-Ion Charger Required properties: - compatible: Should contain one of the following: + * "ti,bq24250" + * "ti,bq24251" * "ti,bq24257" -- reg: integer, i2c address of the device. +- reg: integer, i2c address of the device. +- interrupt-parent: Should be the phandle for the interrupt controller. Use in + conjunction with "interrupts". +- interrupts: Interrupt mapping for GPIO IRQ (configure for both edges). Use in + conjunction with "interrupt-parent". - ti,battery-regulation-voltage: integer, maximum charging voltage in uV. -- ti,charge-current: integer, maximum charging current in uA. -- ti,termination-current: integer, charge will be terminated when current in - constant-voltage phase drops below this value (in uA). +- ti,charge-current: integer, maximum charging current in uA. +- ti,termination-current: integer, charge will be terminated when current in + constant-voltage phase drops below this value (in uA). + +Optional properties: +- pg-gpios: GPIO used for connecting the bq2425x device PG (Power Good) pin. + This pin is not available on all devices however it should be used if + possible as this is the recommended way to obtain the charger's input PG + state. If this pin is not specified a software-based approach for PG + detection is used. +- ti,current-limit: The maximum current to be drawn from the charger's input + (in uA). If this property is not specified, the input limit current is + set automatically using USB D+/D- signal based charger type detection. + If the hardware does not support the D+/D- based detection, a default + of 500,000 is used (=500mA) instead. +- ti,ovp-voltage: Configures the over voltage protection voltage (in uV). If + not specified a default of 6,5000,000 (=6.5V) is used. +- ti,in-dpm-voltage: Configures the threshold input voltage for the dynamic + power path management (in uV). If not specified a default of 4,360,000 + (=4.36V) is used. Example: bq24257 { compatible = "ti,bq24257"; reg = <0x6a>; + interrupt-parent = <&gpio1>; + interrupts = <16 IRQ_TYPE_EDGE_BOTH>; + + pg-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>; ti,battery-regulation-voltage = <4200000>; ti,charge-current = <1000000>; ti,termination-current = <50000>; }; + +Example: + +bq24250 { + compatible = "ti,bq24250"; + reg = <0x6a>; + interrupt-parent = <&gpio1>; + interrupts = <16 IRQ_TYPE_EDGE_BOTH>; + + ti,battery-regulation-voltage = <4200000>; + ti,charge-current = <500000>; + ti,termination-current = <50000>; + ti,current-limit = <900000>; + ti,ovp-voltage = <9500000>; + ti,in-dpm-voltage = <4440000>; +}; diff --git a/dts/Bindings/power/da9150-fg.txt b/dts/Bindings/power/da9150-fg.txt new file mode 100644 index 0000000000..00236fe3ea --- /dev/null +++ b/dts/Bindings/power/da9150-fg.txt @@ -0,0 +1,23 @@ +Dialog Semiconductor DA9150 Fuel-Gauge Power Supply bindings + +Required properties: +- compatible: "dlg,da9150-fuel-gauge" for DA9150 Fuel-Gauge Power Supply + +Optional properties: +- dlg,update-interval: Interval time (milliseconds) between battery level checks. +- dlg,warn-soc-level: Battery discharge level (%) where warning event raised. + [1 - 100] +- dlg,crit-soc-level: Battery discharge level (%) where critical event raised. + This value should be lower than the warning level. + [1 - 100] + + +Example: + + fuel-gauge { + compatible = "dlg,da9150-fuel-gauge"; + + dlg,update-interval = <10000>; + dlg,warn-soc-level = /bits/ 8 <15>; + dlg,crit-soc-level = /bits/ 8 <5>; + }; diff --git a/dts/Bindings/power/pd-samsung.txt b/dts/Bindings/power/pd-samsung.txt new file mode 100644 index 0000000000..4e947372a6 --- /dev/null +++ b/dts/Bindings/power/pd-samsung.txt @@ -0,0 +1,52 @@ +* Samsung Exynos Power Domains + +Exynos processors include support for multiple power domains which are used +to gate power to one or more peripherals on the processor. + +Required Properties: +- compatible: should be one of the following. + * samsung,exynos4210-pd - for exynos4210 type power domain. +- reg: physical base address of the controller and length of memory mapped + region. +- #power-domain-cells: number of cells in power domain specifier; + must be 0. + +Optional Properties: +- clocks: List of clock handles. The parent clocks of the input clocks to the + devices in this power domain are set to oscclk before power gating + and restored back after powering on a domain. This is required for + all domains which are powered on and off and not required for unused + domains. +- clock-names: The following clocks can be specified: + - oscclk: Oscillator clock. + - clkN: Input clocks to the devices in this power domain. These clocks + will be reparented to oscclk before swithing power domain off. + Their original parent will be brought back after turning on + the domain. Maximum of 4 clocks (N = 0 to 3) are supported. + - asbN: Clocks required by asynchronous bridges (ASB) present in + the power domain. These clock should be enabled during power + domain on/off operations. +- power-domains: phandle pointing to the parent power domain, for more details + see Documentation/devicetree/bindings/power/power_domain.txt + +Node of a device using power domains must have a power-domains property +defined with a phandle to respective power domain. + +Example: + + lcd0: power-domain-lcd0 { + compatible = "samsung,exynos4210-pd"; + reg = <0x10023C00 0x10>; + #power-domain-cells = <0>; + }; + + mfc_pd: power-domain@10044060 { + compatible = "samsung,exynos4210-pd"; + reg = <0x10044060 0x20>; + clocks = <&clock CLK_FIN_PLL>, <&clock CLK_MOUT_USER_ACLK333>; + clock-names = "oscclk", "clk0"; + #power-domain-cells = <0>; + }; + +See Documentation/devicetree/bindings/power/power_domain.txt for description +of consumer-side bindings. diff --git a/dts/Bindings/power/wakeup-source.txt b/dts/Bindings/power/wakeup-source.txt new file mode 100644 index 0000000000..963c6dfd48 --- /dev/null +++ b/dts/Bindings/power/wakeup-source.txt @@ -0,0 +1,71 @@ +Specifying wakeup capability for devices +============================================ + +Any device nodes +---------------- +Nodes that describe devices which has wakeup capability must contain an +"wakeup-source" boolean property. + +Also, if device is marked as a wakeup source, then all the primary +interrupt(s) can be used as wakeup interrupt(s). + +However if the devices have dedicated interrupt as the wakeup source +then they need to specify/identify the same using device specific +interrupt name. In such cases only that interrupt can be used as wakeup +interrupt. + +List of legacy properties and respective binding document +--------------------------------------------------------- + +1. "enable-sdio-wakeup" Documentation/devicetree/bindings/mmc/mmc.txt +2. "gpio-key,wakeup" Documentation/devicetree/bindings/input/gpio-keys{,-polled}.txt +3. "has-tpo" Documentation/devicetree/bindings/rtc/rtc-opal.txt +4. "isil,irq2-can-wakeup-machine" Documentation/devicetree/bindings/rtc/isil,isl12057.txt +5. "linux,wakeup" Documentation/devicetree/bindings/input/gpio-matrix-keypad.txt + Documentation/devicetree/bindings/mfd/tc3589x.txt + Documentation/devicetree/bindings/input/ads7846.txt +6. "linux,keypad-wakeup" Documentation/devicetree/bindings/input/qcom,pm8xxx-keypad.txt +7. "linux,input-wakeup" Documentation/devicetree/bindings/input/samsung-keypad.txt +8. "nvidia,wakeup-source" Documentation/devicetree/bindings/input/nvidia,tegra20-kbc.txt + +Examples +-------- + +1. With "wakeup" interrupt name + + device@10000 { + compatible = "vendor,device-id"; + reg = <0x10000 0x1000>; + interrupts = <0 19 4>, <0 21 4>, <0 22 4>; + interrupt-names = "ack", "err", "wakeup"; + wakeup-source; + }; + +2. Without "wakeup" interrupt name + + embedded-controller { + compatible = "google,cros-ec-i2c"; + reg = <0x1e>; + interrupts = <6 0>; + interrupt-parent = <&gpx1>; + pinctrl-names = "default"; + pinctrl-0 = <&ec_irq>; + wakeup-source; + }; + +3. Without interrupts + + gpio_keys { + compatible = "gpio-keys"; + #address-cells = <1>; + #size-cells = <0>; + + button@1 { + debounce_interval = <50>; + wakeup-source; + linux,code = <116>; + label = "POWER"; + gpios = <&iofpga_gpio0 0 0x4>; + }; + [....] + }; |