On Thu, Jul 07, 2016 at 01:37:11PM -0600, Stephen Warren wrote: > From: Stephen Warren <swarren@xxxxxxxxxx> > > In Tegra186, the BPMP (Boot and Power Management Processor) owns certain > HW devices, such as the I2C controller for the power management I2C bus. > Software running on other CPUs must perform IPC to the BPMP in order to > execute transactions on that I2C bus. This binding describes an I2C bus > that is accessed in such a fashion. > > Signed-off-by: Stephen Warren <swarren@xxxxxxxxxx> > --- > .../bindings/i2c/nvidia,tegra186-bpmp-i2c.txt | 35 ++++++++++++++++++++++ > 1 file changed, 35 insertions(+) > create mode 100644 Documentation/devicetree/bindings/i2c/nvidia,tegra186-bpmp-i2c.txt > > diff --git a/Documentation/devicetree/bindings/i2c/nvidia,tegra186-bpmp-i2c.txt b/Documentation/devicetree/bindings/i2c/nvidia,tegra186-bpmp-i2c.txt > new file mode 100644 > index 000000000000..eb9f70723ab7 > --- /dev/null > +++ b/Documentation/devicetree/bindings/i2c/nvidia,tegra186-bpmp-i2c.txt > @@ -0,0 +1,35 @@ > +NVIDIA Tegra186 BPMP I2C controller > + > +In Tegra186, the BPMP (Boot and Power Management Processor) owns certain HW > +devices, such as the I2C controller for the power management I2C bus. Software > +running on other CPUs must perform IPC to the BPMP in order to execute > +transactions on that I2C bus. This binding describes an I2C bus that is > +accessed in such a fashion. > + > +Required properties: > +- compatible: > + Array of strings. > + One of: > + - "nvidia,tegra186-bpmp-i2c". > +- address-cells: Address cells for I2C device address. > + Single-cell integer. > + Must be <1>. > +- size-cells: > + Single-cell integer. > + Must be <0>. > +- nvidia,bpmp: > + The phandle to the BPMP device. Any reason to not make this a sub-node of the BPMP device? -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
