kernel/linux.git/drivers/usb/dwc2/core.h, branch linux-7.0.y

usb: dwc2: Implement recovery after PM domain off

2025-02-19T14:15:54+00:00

According to the dt-bindings there are some platforms, which have a dedicated USB power domain for DWC2 IP core supply. If the power domain is switched off during system suspend then all USB register will lose their settings. Use GUSBCFG_TOUTCAL as a canary to detect that the power domain has been powered off during suspend. Since the GOTGCTL_CURMODE_HOST doesn't match on all platform with the current mode, additionally backup GINTSTS. This works reliable to decide which registers should be restored. Signed-off-by: Stefan Wahren Reviewed-by: Douglas Anderson Link: https://lore.kernel.org/r/20250217134132.36786-4-wahrenst@gmx.net Signed-off-by: Greg Kroah-Hartman

usb: dwc2: Refactor backup/restore of registers

2025-02-19T14:15:54+00:00

The DWC2 runtime PM code reuses similar patterns to backup and restore the registers. So consolidate them in USB mode specific variants. This also has the advantage it is reusable for further PM improvements. Special care is taken for DCFG register during device mode restore. Signed-off-by: Stefan Wahren Link: https://lore.kernel.org/r/20250217134132.36786-3-wahrenst@gmx.net Signed-off-by: Greg Kroah-Hartman

usb: dwc2: gadget: Introduce register restore flags

2025-02-19T14:15:54+00:00

dwc2_restore_device_registers() use a single boolean to decide about the register restoring behavior. So replace this with a flags parameter, which can be extended later. No functional change intended. Signed-off-by: Stefan Wahren Link: https://lore.kernel.org/r/20250217134132.36786-2-wahrenst@gmx.net Signed-off-by: Greg Kroah-Hartman

Merge 6.9-rc2 into usb-next

2024-04-01T15:02:18+00:00

We need the USB fixes in here as well. Signed-off-by: Greg Kroah-Hartman

usb: dwc2: gadget: LPM flow fix

2024-03-26T13:56:28+00:00

Added functionality to exit from L1 state by device initiation using remote wakeup signaling, in case when function driver queuing request while core in L1 state. Fixes: 273d576c4d41 ("usb: dwc2: gadget: Add functionality to exit from LPM L1 state") Fixes: 88b02f2cb1e1 ("usb: dwc2: Add core state checking") CC: stable@vger.kernel.org Signed-off-by: Minas Harutyunyan Link: https://lore.kernel.org/r/b4d9de5382375dddbf7ef6049d9a82066ad87d5d.1710166393.git.Minas.Harutyunyan@synopsys.com Signed-off-by: Greg Kroah-Hartman

usb: dwc2: host: Fix remote wakeup from hibernation

2024-03-26T13:56:20+00:00

Starting from core v4.30a changed order of programming GPWRDN_PMUACTV to 0 in case of exit from hibernation on remote wakeup signaling from device. Fixes: c5c403dc4336 ("usb: dwc2: Add host/device hibernation functions") CC: stable@vger.kernel.org Signed-off-by: Minas Harutyunyan Link: https://lore.kernel.org/r/99385ec55ce73445b6fbd0f471c9bd40eb1c9b9e.1708939799.git.Minas.Harutyunyan@synopsys.com Signed-off-by: Greg Kroah-Hartman

usb: dwc2: host: Fix hibernation flow

2024-03-26T13:56:03+00:00

Added to backup/restore registers HFLBADDR, HCCHARi, HCSPLTi, HCTSIZi, HCDMAi and HCDMABi. Fixes: 58e52ff6a6c3 ("usb: dwc2: Move register save and restore functions") Fixes: d17ee77b3044 ("usb: dwc2: add controller hibernation support") CC: stable@vger.kernel.org Signed-off-by: Minas Harutyunyan Link: https://lore.kernel.org/r/c2d10ee6098b9b009a8e94191e046004747d3bdd.1708945444.git.Minas.Harutyunyan@synopsys.com Signed-off-by: Greg Kroah-Hartman

usb: dwc2: Add new parameter eusb2_disc

2024-03-26T09:44:53+00:00

Added new parameter eusb2_disc to list of core parameters which specify whether eUSB2 PHY disconnect support flow applicable or no. Set to false as default value and checked core version if set to true. This parameter applicable in device mode of HSOTG and HS IOT cores v5.00 or higher. Added print this parameter in show parameters of debugfs. Signed-off-by: Minas Harutyunyan Link: https://lore.kernel.org/r/e77cc4312bda797d1ddaa4351d86c65a69c8b926.1708948356.git.Minas.Harutyunyan@synopsys.com Signed-off-by: Greg Kroah-Hartman

usb: dwc2: Add core new versions definition

2024-03-26T09:44:52+00:00

Added new versions definition for HSOTG core v5.00a and IOT HS device core v5.00. Signed-off-by: Minas Harutyunyan Link: https://lore.kernel.org/r/7fc17fe275a54c8a9e00cd00ffc19e62418c1f84.1708948356.git.Minas.Harutyunyan@synopsys.com Signed-off-by: Greg Kroah-Hartman

usb: dwc2: add pci_device_id driver_data parse support

2023-08-22T12:49:12+00:00

The dwc2 driver has everything we need to run in PCI mode except for pci_device_id driver_data parse. With that to set Loongson dwc2 element and added identified as PCI_VENDOR_ID_LOONGSON and PCI_DEVICE_ID_LOONGSON_DWC2 in dwc2_pci_ids, the Loongson dwc2 controller will work. Signed-off-by: Yinbo Zhu Link: https://lore.kernel.org/r/20230815065833.3375-1-zhuyinbo@loongson.cn Signed-off-by: Greg Kroah-Hartman