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kernel
os
linux
dt-bindings: add rpi power domain driver bindings
This patch adds devicetree tree bindings for the Raspberry Pi power
domain driver.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
authored by
Alexander Aring
and committed by
Eric Anholt
4c8b338f
60d56333
+47
+47
Documentation/devicetree/bindings/soc/bcm/raspberrypi,bcm2835-power.txt
+47
Documentation/devicetree/bindings/soc/bcm/raspberrypi,bcm2835-power.txt
···
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Raspberry Pi power domain driver
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Required properties:
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- compatible: Should be "raspberrypi,bcm2835-power".
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- firmware: Reference to the RPi firmware device node.
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- #power-domain-cells: Should be <1>, we providing multiple power domains.
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The valid defines for power domain are:
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RPI_POWER_DOMAIN_I2C0
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RPI_POWER_DOMAIN_I2C1
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RPI_POWER_DOMAIN_I2C2
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RPI_POWER_DOMAIN_VIDEO_SCALER
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RPI_POWER_DOMAIN_VPU1
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RPI_POWER_DOMAIN_HDMI
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RPI_POWER_DOMAIN_USB
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RPI_POWER_DOMAIN_VEC
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RPI_POWER_DOMAIN_JPEG
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RPI_POWER_DOMAIN_H264
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RPI_POWER_DOMAIN_V3D
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RPI_POWER_DOMAIN_ISP
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RPI_POWER_DOMAIN_UNICAM0
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RPI_POWER_DOMAIN_UNICAM1
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RPI_POWER_DOMAIN_CCP2RX
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RPI_POWER_DOMAIN_CSI2
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RPI_POWER_DOMAIN_CPI
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RPI_POWER_DOMAIN_DSI0
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RPI_POWER_DOMAIN_DSI1
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RPI_POWER_DOMAIN_TRANSPOSER
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RPI_POWER_DOMAIN_CCP2TX
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RPI_POWER_DOMAIN_CDP
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RPI_POWER_DOMAIN_ARM
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Example:
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power: power {
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compatible = "raspberrypi,bcm2835-power";
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firmware = <&firmware>;
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#power-domain-cells = <1>;
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};
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Example for using power domain:
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&usb {
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power-domains = <&power RPI_POWER_DOMAIN_USB>;
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};