This is a rework of patches 3-5 of [1]. It attempts to correctly program REFCLKPER and REFCLK_FLADJ based on the reference clock frequency. Since we no longer need a special property duplicating this configuration, snps,ref-clock-period-ns is deprecated. Please test this! Patches 3/4 in this series have the effect of programming REFCLKPER and REFCLK_FLADJ on boards which already configure the "ref" clock. I have build tested, but not much else. [1] https://lore.kernel.org/linux-usb/20220114044230.2677283-1-robert.hancock@xxxxxxxxxx/ Sean Anderson (6): dt-bindings: usb: dwc3: Deprecate snps,ref-clock-period-ns usb: dwc3: Get clocks individually usb: dwc3: Calculate REFCLKPER based on reference clock usb: dwc3: Handle fractional reference clocks arm64: dts: zynqmp: Move USB clocks to dwc3 node arm64: dts: ipq6018: Use reference clock to set dwc3 period .../devicetree/bindings/usb/snps,dwc3.yaml | 7 +- arch/arm64/boot/dts/qcom/ipq6018.dtsi | 3 +- .../arm64/boot/dts/xilinx/zynqmp-clk-ccf.dtsi | 4 +- arch/arm64/boot/dts/xilinx/zynqmp.dtsi | 4 +- drivers/usb/dwc3/core.c | 98 ++++++++++++++++--- drivers/usb/dwc3/core.h | 6 +- 6 files changed, 98 insertions(+), 24 deletions(-) -- 2.25.1
