diff options
author | 2016-04-11 10:41:07 +0300 | |
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committer | 2016-04-13 08:17:18 +0300 | |
commit | e09b41010ba33a20a87472ee821fa407a5b8da36 (patch) | |
tree | d10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/Documentation/devicetree/bindings/display/brcm,bcm-vc4.txt | |
parent | f93b97fd65072de626c074dbe099a1fff05ce060 (diff) |
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page.
During the rebasing, the following patch collided:
Force tick interrupt and get rid of softirq magic(I70131fb85).
Collisions have been removed because its logic was found on the
source already.
Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/Documentation/devicetree/bindings/display/brcm,bcm-vc4.txt')
-rw-r--r-- | kernel/Documentation/devicetree/bindings/display/brcm,bcm-vc4.txt | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/kernel/Documentation/devicetree/bindings/display/brcm,bcm-vc4.txt b/kernel/Documentation/devicetree/bindings/display/brcm,bcm-vc4.txt new file mode 100644 index 000000000..56a961aa5 --- /dev/null +++ b/kernel/Documentation/devicetree/bindings/display/brcm,bcm-vc4.txt @@ -0,0 +1,65 @@ +Broadcom VC4 (VideoCore4) GPU + +The VC4 device present on the Raspberry Pi includes a display system +with HDMI output and the HVS (Hardware Video Scaler) for compositing +display planes. + +Required properties for VC4: +- compatible: Should be "brcm,bcm2835-vc4" + +Required properties for Pixel Valve: +- compatible: Should be one of "brcm,bcm2835-pixelvalve0", + "brcm,bcm2835-pixelvalve1", or "brcm,bcm2835-pixelvalve2" +- reg: Physical base address and length of the PV's registers +- interrupts: The interrupt number + See bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt + +Required properties for HVS: +- compatible: Should be "brcm,bcm2835-hvs" +- reg: Physical base address and length of the HVS's registers +- interrupts: The interrupt number + See bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt + +Required properties for HDMI +- compatible: Should be "brcm,bcm2835-hdmi" +- reg: Physical base address and length of the two register ranges + ("HDMI" and "HD", in that order) +- interrupts: The interrupt numbers + See bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt +- ddc: phandle of the I2C controller used for DDC EDID probing +- clocks: a) hdmi: The HDMI state machine clock + b) pixel: The pixel clock. + +Optional properties for HDMI: +- hpd-gpios: The GPIO pin for HDMI hotplug detect (if it doesn't appear + as an interrupt/status bit in the HDMI controller + itself). See bindings/pinctrl/brcm,bcm2835-gpio.txt + +Example: +pixelvalve@7e807000 { + compatible = "brcm,bcm2835-pixelvalve2"; + reg = <0x7e807000 0x100>; + interrupts = <2 10>; /* pixelvalve */ +}; + +hvs@7e400000 { + compatible = "brcm,bcm2835-hvs"; + reg = <0x7e400000 0x6000>; + interrupts = <2 1>; +}; + +hdmi: hdmi@7e902000 { + compatible = "brcm,bcm2835-hdmi"; + reg = <0x7e902000 0x600>, + <0x7e808000 0x100>; + interrupts = <2 8>, <2 9>; + ddc = <&i2c2>; + hpd-gpios = <&gpio 46 GPIO_ACTIVE_HIGH>; + clocks = <&clocks BCM2835_PLLH_PIX>, + <&clocks BCM2835_CLOCK_HSM>; + clock-names = "pixel", "hdmi"; +}; + +vc4: gpu { + compatible = "brcm,bcm2835-vc4"; +}; |