On Sun, May 14, 2023 at 11:19:08AM +0530, Krishna Kurapati wrote: > Currently the DWC3 driver supports only single port controller which > requires at most two PHYs ie HS and SS PHYs. There are SoCs that has > DWC3 controller with multiple ports that can operate in host mode. > Some of the port supports both SS+HS and other port supports only HS > mode. > > This change primarily refactors the Phy logic in core driver to allow > multiport support with Generic Phy's. > > Chananges have been tested on QCOM SoC SA8295P which has 4 ports (2 > are HS+SS capable and 2 are HS only capable). > I'm able to detect my USB stick on all 4 ports on the sa8295p adp. Tested-by: Bjorn Andersson <andersson@xxxxxxxxxx> Thanks, Bjorn > Changes in v8: > Reorganised code in patch-5 > Fixed nitpicks in code according to comments received on v7 > Fixed indentation in DT patches > Added drive strength for pinctrl nodes in SA8295 DT > > Changes in v7: > Added power event irq's for Multiport controller. > Udpated commit text for patch-9 (adding DT changes for enabling first > port of multiport controller on sa8540-ride). > Fixed check-patch warnings for driver code. > Fixed DT binding errors for changes in snps,dwc3.yaml > Reabsed code on top of usb-next > > Changes in v6: > Updated comments in code after. > Updated variables names appropriately as per review comments. > Updated commit text in patch-2 and added additional info as per review > comments. > The patch header in v5 doesn't have "PATHCH v5" notation present. Corrected > it in this version. > > Changes in v5: > Added DT support for first port of Teritiary USB controller on SA8540-Ride > Added support for reading port info from XHCI Extended Params registers. > > Changes in RFC v4: > Added DT support for SA8295p. > > Changes in RFC v3: > Incase any PHY init fails, then clear/exit the PHYs that > are already initialized. > > Changes in RFC v2: > Changed dwc3_count_phys to return the number of PHY Phandles in the node. > This will be used now in dwc3_extract_num_phys to increment num_usb2_phy > and num_usb3_phy. > > Added new parameter "ss_idx" in dwc3_core_get_phy_ny_node and changed its > structure such that the first half is for HS-PHY and second half is for > SS-PHY. > > In dwc3_core_get_phy, for multiport controller, only if SS-PHY phandle is > present, pass proper SS_IDX else pass -1. > > Link to v7: https://lore.kernel.org/all/20230501143445.3851-1-quic_kriskura@xxxxxxxxxxx/ > Link to v6: https://lore.kernel.org/all/20230405125759.4201-1-quic_kriskura@xxxxxxxxxxx/ > Link to v5: https://lore.kernel.org/all/20230310163420.7582-1-quic_kriskura@xxxxxxxxxxx/ > Link to RFC v4: https://lore.kernel.org/all/20230115114146.12628-1-quic_kriskura@xxxxxxxxxxx/ > Link to RFC v3: https://lore.kernel.org/all/1654709787-23686-1-git-send-email-quic_harshq@xxxxxxxxxxx/#r > Link to RFC v2: https://lore.kernel.org/all/1653560029-6937-1-git-send-email-quic_harshq@xxxxxxxxxxx/#r > > Test results: > > Bus 3/4 represent multiport controller having 4 HS ports and 2 SS ports. > > / # dmesg |grep hub > [ 0.029029] usbcore: registered new interface driver hub > [ 1.372812] hub 1-0:1.0: USB hub found > [ 1.389142] hub 1-0:1.0: 1 port detected > [ 1.414721] hub 2-0:1.0: USB hub found > [ 1.427669] hub 2-0:1.0: 1 port detected > [ 2.931465] hub 3-0:1.0: USB hub found > [ 2.935340] hub 3-0:1.0: 4 ports detected > [ 2.948721] hub 4-0:1.0: USB hub found > [ 2.952604] hub 4-0:1.0: 2 ports detected > / # > / # lsusb > Bus 003 Device 001: ID 1d6b:0002 > Bus 001 Device 001: ID 1d6b:0002 > Bus 003 Device 005: ID 0b0e:0300 > Bus 003 Device 002: ID 046d:c077 > Bus 004 Device 001: ID 1d6b:0003 > Bus 002 Device 001: ID 1d6b:0003 > Bus 003 Device 004: ID 03f0:0024 > Bus 003 Device 003: ID 046d:c016 > > Krishna Kurapati (9): > dt-bindings: usb: qcom,dwc3: Add bindings for SC8280 Multiport > dt-bindings: usb: Add bindings for multiport properties on DWC3 > controller > usb: dwc3: core: Access XHCI address space temporarily to read port > info > usb: dwc3: core: Skip setting event buffers for host only controllers > usb: dwc3: core: Refactor PHY logic to support Multiport Controller > usb: dwc3: qcom: Add multiport controller support for qcom wrapper > arm64: dts: qcom: sc8280xp: Add multiport controller node for SC8280 > arm64: dts: qcom: sa8295p: Enable tertiary controller and its 4 USB > ports > arm64: dts: qcom: sa8540-ride: Enable first port of tertiary usb > controller > > .../devicetree/bindings/usb/qcom,dwc3.yaml | 22 + > .../devicetree/bindings/usb/snps,dwc3.yaml | 13 +- > arch/arm64/boot/dts/qcom/sa8295p-adp.dts | 52 +++ > arch/arm64/boot/dts/qcom/sa8540p-ride.dts | 22 + > arch/arm64/boot/dts/qcom/sc8280xp.dtsi | 66 +++ > drivers/usb/dwc3/core.c | 389 +++++++++++++++--- > drivers/usb/dwc3/core.h | 28 +- > drivers/usb/dwc3/drd.c | 13 +- > drivers/usb/dwc3/dwc3-qcom.c | 28 +- > 9 files changed, 543 insertions(+), 90 deletions(-) > > -- > 2.40.0 >
