From: Piyush Mehta Date: Tue, 20 Sep 2022 05:22:34 +0000 (+0530) Subject: dt-bindings: usb: snps,dwc3: Add 'snps,resume-hs-terminations' quirk X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=031cba1695d4d3767ba47718077e83f2b5aac944;p=linux.git dt-bindings: usb: snps,dwc3: Add 'snps,resume-hs-terminations' quirk Add a new 'snps,resume-hs-terminations' DT quirk to dwc3 core to resolved issue of CRC failed error. On the resume path, U3/U2 exit controller fails to send proper CRC checksum in CRC5 field. As result Transaction Error is generated. Enabling bit 10 of GUCTL1 will correct this problem. When this bit is set to '1', the UTMI/ULPI opmode will be changed to "normal" along with HS terminations and term/xcvr select signals after EOR. This option is to support certain legacy UTMI/ULPI PHYs. Acked-by: Krzysztof Kozlowski Signed-off-by: Piyush Mehta Link: https://lore.kernel.org/r/20220920052235.194272-2-piyush.mehta@amd.com Signed-off-by: Greg Kroah-Hartman --- diff --git a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml index 2a54d0bb0b158..6d78048c4613e 100644 --- a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml +++ b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml @@ -239,6 +239,13 @@ properties: When set, run the SOF/ITP counter based on ref_clk. type: boolean + snps,resume-hs-terminations: + description: + Fix the issue of HS terminations CRC error on resume by enabling this + quirk. When set, all the termsel, xcvrsel, opmode becomes 0 during end + of resume. This option is to support certain legacy ULPI PHYs. + type: boolean + snps,is-utmi-l1-suspend: description: True when DWC3 asserts output signal utmi_l1_suspend_n, false when