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dt-bindings: usb: dwc3: Deprecate snps,ref-clock-period-ns

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This property is redundant because we can determine the correct value for
REFCLKPER based on the "ref" clock. Deprecate it, and encourage users to
provide a clock instead. This also restricts the minimum and maximum to the
values documented in the register reference [1].

[1] https://www.xilinx.com/html_docs/registers/ug1087/usb3_xhci___guctl.html

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Link: https://lore.kernel.org/r/20220127200636.1456175-2-sean.anderson@seco.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sean Anderson
2022-01-27 15:06:30 -05:00
committed by Greg Kroah-Hartman
parent 2dac5d2864
commit 97ecbfb30d
1 changed files with 5 additions and 2 deletions
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7
Documentation/devicetree/bindings/usb/snps,dwc3.yaml
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@@ -263,8 +263,11 @@ properties:
Value for REFCLKPER field of GUCTL register for reference clock period in
nanoseconds, when the hardware set default does not match the actual
clock.
minimum: 1
maximum: 0x3ff
This binding is deprecated. Instead, provide an appropriate reference clock.
minimum: 8
maximum: 62
deprecated: true
snps,rx-thr-num-pkt-prd:
description: