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dt-bindings: i2c: tegra: Document Tegra210 VI I2C clocks and power-domains

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This patch documents missing clocks and power-domains of Tegra210 VI I2C.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Sowjanya Komatineni 2020-07-14 21:20:38 -07:00 committed by Thierry Reding
parent 90a09178f3
commit 522f045595
1 changed files with 13 additions and 6 deletions
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19
Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.txt
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@ -35,12 +35,12 @@ Required properties:
Due to above changes, Tegra114 I2C driver makes incompatible with
previous hardware driver. Hence, tegra114 I2C controller is compatible
with "nvidia,tegra114-i2c".
nvidia,tegra210-i2c-vi: Tegra210 has one I2C controller that is part of the
host1x domain and typically used for camera use-cases. This VI I2C
controller is mostly compatible with the programming model of the
regular I2C controllers with a few exceptions. The I2C registers start
at an offset of 0xc00 (instead of 0), registers are 16 bytes apart
(rather than 4) and the controller does not support slave mode.
nvidia,tegra210-i2c-vi: Tegra210 has one I2C controller that is on host1x bus
and is part of VE power domain and typically used for camera use-cases.
This VI I2C controller is mostly compatible with the programming model
of the regular I2C controllers with a few exceptions. The I2C registers
start at an offset of 0xc00 (instead of 0), registers are 16 bytes
apart (rather than 4) and the controller does not support slave mode.
- reg: Should contain I2C controller registers physical address and length.
- interrupts: Should contain I2C controller interrupts.
- address-cells: Address cells for I2C device address.
@ -53,10 +53,17 @@ Required properties:
- fast-clk
Tegra114:
- div-clk
Tegra210:
- div-clk
- slow (only for nvidia,tegra210-i2c-vi compatible node)
- resets: Must contain an entry for each entry in reset-names.
See ../reset/reset.txt for details.
- reset-names: Must include the following entries:
- i2c
- power-domains: Only for nvidia,tegra210-i2c-vi compatible node and must
include venc powergate node as vi i2c is part of VE power domain.
tegra210-i2c-vi:
- pd_venc
- dmas: Must contain an entry for each entry in clock-names.
See ../dma/dma.txt for details.
- dma-names: Must include the following entries: