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authorSascha Hauer <s.hauer@pengutronix.de>2015-12-08 07:35:17 +0100
committerSascha Hauer <s.hauer@pengutronix.de>2015-12-10 08:48:40 +0100
commit6e6d9a2ff045f09d5a03e876becea5e6a1dabe90 (patch)
treebcf5e71df4472e374d03cc15ca22b4f841d9c73d /dts/Bindings/power
parent8e2fd5380a4fd7cee428513dc8eab068912b49f1 (diff)
downloadbarebox-6e6d9a2ff045f09d5a03e876becea5e6a1dabe90.tar.gz
barebox-6e6d9a2ff045f09d5a03e876becea5e6a1dabe90.tar.xz
dts: update to v4.4-rc1
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'dts/Bindings/power')
-rw-r--r--dts/Bindings/power/bq24257.txt53
-rw-r--r--dts/Bindings/power/da9150-fg.txt23
-rw-r--r--dts/Bindings/power/pd-samsung.txt52
-rw-r--r--dts/Bindings/power/wakeup-source.txt71
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>;
+ };
+ [....]
+ };