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authorArnd Bergmann <arnd@arndb.de>2015-12-31 17:11:29 +0100
committerArnd Bergmann <arnd@arndb.de>2015-12-31 17:11:29 +0100
commit5d2c585c7ddda2d5520e585768d0b3f66d04b59f (patch)
tree8b4892577f41a9529e3685cb097d71312368bc08 /Documentation
parent1a4af6ea41392a1acd0ec27d2eeca0f61ee54b65 (diff)
parenta09cd356586d33f64cbe64ee4f5c1a7c4a6abee5 (diff)
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Merge tag 'bcm2835-drivers-next-2015-12-28' of http://github.com/anholt/linux into next/drivers
Pull "BCM2835 drivers changes for 4.5" from Eric Anholt: This pull request includes the bcm2835 changes for 4.5 targeting the arm-soc next/drivers branch. * tag 'bcm2835-drivers-next-2015-12-28' of http://github.com/anholt/linux: ARM: bcm2835: add rpi power domain driver dt-bindings: add rpi power domain driver bindings ARM: bcm2835: Define two new packets from the latest firmware.
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/soc/bcm/raspberrypi,bcm2835-power.txt47
1 files changed, 47 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/soc/bcm/raspberrypi,bcm2835-power.txt b/Documentation/devicetree/bindings/soc/bcm/raspberrypi,bcm2835-power.txt
new file mode 100644
index 000000000000..30942cf7992b
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/bcm/raspberrypi,bcm2835-power.txt
@@ -0,0 +1,47 @@
+Raspberry Pi power domain driver
+
+Required properties:
+
+- compatible: Should be "raspberrypi,bcm2835-power".
+- firmware: Reference to the RPi firmware device node.
+- #power-domain-cells: Should be <1>, we providing multiple power domains.
+
+The valid defines for power domain are:
+
+ RPI_POWER_DOMAIN_I2C0
+ RPI_POWER_DOMAIN_I2C1
+ RPI_POWER_DOMAIN_I2C2
+ RPI_POWER_DOMAIN_VIDEO_SCALER
+ RPI_POWER_DOMAIN_VPU1
+ RPI_POWER_DOMAIN_HDMI
+ RPI_POWER_DOMAIN_USB
+ RPI_POWER_DOMAIN_VEC
+ RPI_POWER_DOMAIN_JPEG
+ RPI_POWER_DOMAIN_H264
+ RPI_POWER_DOMAIN_V3D
+ RPI_POWER_DOMAIN_ISP
+ RPI_POWER_DOMAIN_UNICAM0
+ RPI_POWER_DOMAIN_UNICAM1
+ RPI_POWER_DOMAIN_CCP2RX
+ RPI_POWER_DOMAIN_CSI2
+ RPI_POWER_DOMAIN_CPI
+ RPI_POWER_DOMAIN_DSI0
+ RPI_POWER_DOMAIN_DSI1
+ RPI_POWER_DOMAIN_TRANSPOSER
+ RPI_POWER_DOMAIN_CCP2TX
+ RPI_POWER_DOMAIN_CDP
+ RPI_POWER_DOMAIN_ARM
+
+Example:
+
+power: power {
+ compatible = "raspberrypi,bcm2835-power";
+ firmware = <&firmware>;
+ #power-domain-cells = <1>;
+};
+
+Example for using power domain:
+
+&usb {
+ power-domains = <&power RPI_POWER_DOMAIN_USB>;
+};