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Date: Thu, 27 Jan 2022 15:06:29 -0500 From: Sean Anderson <sean.anderson@...o.com> To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, linux-usb@...r.kernel.org Cc: Robert Hancock <robert.hancock@...ian.com>, Baruch Siach <baruch@...s.co.il>, Felipe Balbi <balbi@...nel.org>, Thinh Nguyen <Thinh.Nguyen@...opsys.com>, linux-kernel@...r.kernel.org, Balaji Prakash J <bjagadee@...eaurora.org>, Sean Anderson <sean.anderson@...o.com>, Andy Gross <agross@...nel.org>, Bjorn Andersson <bjorn.andersson@...aro.org>, Michal Simek <michal.simek@...inx.com>, Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, linux-arm-msm@...r.kernel.org Subject: [PATCH v3 0/7] usb: dwc3: Calculate REFCLKPER et. al. from reference clock 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@calian.com/ Changes in v3: - Define each variable on its own line - Rebase onto linux/master - Update comment to notes some things mentioned during review Changes in v2: - Add snps,ref-clock-frequency-hz property for ACPI - Also program GFLADJ.240MHZDECR - Document clock members - Don't program GFLADJ if the version is < 2.50a Sean Anderson (7): 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: Program GFLADJ usb: dwc3: Add snps,ref-clock-frequency-hz property for ACPI 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 | 117 +++++++++++++++--- drivers/usb/dwc3/core.h | 17 ++- 6 files changed, 125 insertions(+), 27 deletions(-) -- 2.25.1
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