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Commit 5d2c585c authored by Arnd Bergmann's avatar Arnd Bergmann
Browse files

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.
parents 1a4af6ea a09cd356

Documentation/devicetree/bindings/soc/bcm/raspberrypi,bcm2835-power.txt

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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>;

};

drivers/soc/Kconfig

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menu "SOC (System On Chip) specific Drivers"



source "drivers/soc/bcm/Kconfig"

source "drivers/soc/brcmstb/Kconfig"

source "drivers/soc/mediatek/Kconfig"

source "drivers/soc/qcom/Kconfig"

drivers/soc/Makefile

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@@ -2,6 +2,7 @@ 
# Makefile for the Linux Kernel SOC specific device drivers.

#



obj-y				+= bcm/

obj-$(CONFIG_SOC_BRCMSTB)	+= brcmstb/

obj-$(CONFIG_MACH_DOVE)		+= dove/

obj-$(CONFIG_ARCH_MEDIATEK)	+= mediatek/

drivers/soc/bcm/Kconfig

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config RASPBERRYPI_POWER

	bool "Raspberry Pi power domain driver"

	depends on ARCH_BCM2835 || COMPILE_TEST

	depends on RASPBERRYPI_FIRMWARE

	select PM_GENERIC_DOMAINS if PM

	select PM_GENERIC_DOMAINS_OF if PM

	help

	  This enables support for the RPi power domains which can be enabled

	  or disabled via the RPi firmware.

drivers/soc/bcm/Makefile

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obj-$(CONFIG_RASPBERRYPI_POWER)	+= raspberrypi-power.o