72 lines
2.1 KiB
Diff
72 lines
2.1 KiB
Diff
From: Alexander Aring <alex.aring@gmail.com>
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Date: Wed, 16 Dec 2015 16:26:48 -0800
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Subject: [2/3] dt-bindings: add rpi power domain driver bindings
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Origin: https://github.com/anholt/linux/commit/4c8b338f9ae38dee9c77bda023babc7f7543f52c
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This patch adds devicetree tree bindings for the Raspberry Pi power
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domain driver.
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Signed-off-by: Alexander Aring <alex.aring@gmail.com>
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Signed-off-by: Eric Anholt <eric@anholt.net>
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Acked-by: Rob Herring <robh@kernel.org>
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Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
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Reviewed-by: Kevin Hilman <khilman@linaro.org>
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---
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.../bindings/soc/bcm/raspberrypi,bcm2835-power.txt | 47 ++++++++++++++++++++++
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1 file changed, 47 insertions(+)
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create mode 100644 Documentation/devicetree/bindings/soc/bcm/raspberrypi,bcm2835-power.txt
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diff --git a/Documentation/devicetree/bindings/soc/bcm/raspberrypi,bcm2835-power.txt b/Documentation/devicetree/bindings/soc/bcm/raspberrypi,bcm2835-power.txt
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new file mode 100644
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index 0000000..30942cf
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--- /dev/null
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+++ b/Documentation/devicetree/bindings/soc/bcm/raspberrypi,bcm2835-power.txt
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@@ -0,0 +1,47 @@
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+Raspberry Pi power domain driver
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+
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+Required properties:
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+
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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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+
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+The valid defines for power domain are:
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+
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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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+
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+Example:
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+
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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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+
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+Example for using power domain:
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+
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+&usb {
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+ power-domains = <&power RPI_POWER_DOMAIN_USB>;
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+};
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