There are several attempt to upstream this code in past year. The first attempt: https://lore.kernel.org/linux-usb/20191121095356.GB7503@b29397-desktop/ cache type is dwc core setting, not glue layer. So It'd better change in dwc core instead of glue layer code. The second attempt: https://lore.kernel.org/linux-usb/20240123170206.3702413-1-Frank.Li@xxxxxxx/#t DT team think there are not variable for property 'snps,dat-wr-reqinfo'. And suggest use vendor compatible string. This is third attempt: Compared with first attempt: - reduce compatible string to one 'fsl,ls-dwc3' because all setting are the same. - move update burst type code into dwc3_set_incr_burst_type(). and check compatible string 'fsl,ls-dwc3'. - Using bit field help macro. Signed-off-by: Frank Li <Frank.Li@xxxxxxx> --- Ran Wang (2): dt-bindings: usb: Add chip-specific compatible string 'fsl,ls-dwc3' usb: dwc3: Set cache type to 'snoop' for freescale layerscape chip Documentation/devicetree/bindings/usb/snps,dwc3.yaml | 1 + drivers/usb/dwc3/core.c | 12 ++++++++++++ drivers/usb/dwc3/core.h | 4 ++++ 3 files changed, 17 insertions(+) --- base-commit: 0b58e108042b0ed28a71cd7edf5175999955b233 change-id: 20240703-dwc-5be3e378ddbe Best regards, --- Frank Li <Frank.Li@xxxxxxx>
