talos-op-linux/drivers/phy/broadcom, branch master

phy: Enable compile testing for some of drivers

2020-01-14T05:20:19+00:00

Some of the phy drivers can be compile tested to increase build coverage. Signed-off-by: Krzysztof Kozlowski Acked-by: Florian Fainelli Signed-off-by: Kishon Vijay Abraham I

phy: usb: Add support for wake and USB low power mode for 7211 S2/S5

2020-01-08T07:28:06+00:00

Add support for 7211 USB wake. Disable all possible 7211 USB logic for S2/S5 if USB wake is not enabled. On the 7211, the XHCI wake signal was not connected properly and only goes to the USB1_USB1_CTRL_TP_DIAG1 diagonstic register. The workaround is to have VPU code running that polls for the proper bit in the DIAG register and to wake the system when the bit is asserted. Signed-off-by: Al Cooper Reviewed-by: Florian Fainelli Signed-off-by: Kishon Vijay Abraham I

phy: usb: USB driver is crashing during S3 resume on 7216

2020-01-08T07:28:06+00:00

This is a result of the USB 2.0 clocks not being disabled/enabled during suspend/resume on XHCI only systems. Signed-off-by: Al Cooper Reviewed-by: Florian Fainelli Signed-off-by: Kishon Vijay Abraham I

phy: usb: bdc: Fix occasional failure with BDC on 7211

2020-01-08T07:28:06+00:00

The BDC "Read Transaction Size" needs to be changed from 1024 bytes to 256 bytes to prevent occasional transaction failures. Signed-off-by: Al Cooper Reviewed-by: Florian Fainelli Signed-off-by: Kishon Vijay Abraham I

phy: usb: PHY's MDIO registers not accessible without device installed

2020-01-08T07:28:06+00:00

When there is no device connected and FSM is enabled, the XHCI puts the PHY into suspend mode. When the PHY is put into suspend mode the USB LDO powers down the PHY. This causes the MDIO to be inaccessible and its registers reset to default. The fix is to disable FSM. Signed-off-by: Al Cooper Reviewed-by: Florian Fainelli Signed-off-by: Kishon Vijay Abraham I

phy: usb: fix driver to defer on clk_get defer

2020-01-08T07:28:06+00:00

Handle defer on clk_get because the new SCMI clock driver comes up after this driver. Signed-off-by: Al Cooper Reviewed-by: Florian Fainelli Signed-off-by: Kishon Vijay Abraham I

phy: usb: Add support for new Synopsys USB controller on the 7211b0

2020-01-08T07:28:06+00:00

The 7211b0 has added the STB XHCI Synopsys controller and it will be used instead of the RPi based DWC USB controller. The new Synopsys XHCI controller core is the same one that is used on the 7216, but because of the way the STB USB PHY is used on both the A0 and B0, some of the PHY control is different. Signed-off-by: Al Cooper Reviewed-by: Florian Fainelli Signed-off-by: Kishon Vijay Abraham I

phy: usb: Add support for new Synopsys USB controller on the 7216

2020-01-08T07:28:06+00:00

The 7216 has the new USB XHCI controller from Synopsys. While this new controller and the PHY are similar to the STB versions, the major differences are: - Many of the registers and fields in the CTRL block have been removed or changed. - A new set of Synopsys control registers, BCHP_USB_XHCI_GBL, were added. - MDIO functionality has been replaced with direct access registers in the BCHP_USB_XHCI_GBL block. - Power up PHY defaults that had to be changed by MDIO in previous chips will now power up with the correct defaults. A new init module was created for this new Synopsys USB controller. A new compatible string was added and the driver will dispatch into one of two init modules based on it. A "reg-names" field was added so the driver can more easily get optional registers. A DT bindings document was also added for this driver. Signed-off-by: Al Cooper Reviewed-by: Florian Fainelli Signed-off-by: Kishon Vijay Abraham I

phy: usb: Restructure in preparation for adding 7216 USB support

2020-01-08T07:28:06+00:00

The driver is being restructured in preparation for adding support for the new Synopsys USB conroller on the 7216. Since all the bugs and work-arounds in previous STB chips are supposed to be fixed, most of the code in phy-brcm-usb-init.c is not needed. Instead of adding more complexity to the already complicated phy-brcm-usb-init.c module, the driver will be restructured to use a vector table to dispatch into different C modules for the different controllers. There was also some general cleanup done including some ipp setup code that was incorrect. Signed-off-by: Al Cooper Reviewed-by: Florian Fainelli Signed-off-by: Kishon Vijay Abraham I

phy: usb: Add "wake on" functionality

2020-01-08T07:28:06+00:00

Add the ability to handle USB wake events from USB devices when in S2 mode. Typically there is some additional configuration needed to tell the USB device to generate the wake event when suspended but this varies with the different USB device classes. For example, on USB Ethernet dongles, ethtool should be used to enable the magic packet wake functionality in the dongle. NOTE: This requires that the "power/wakeup" sysfs entry for the USB device generating the wakeup be set to "enabled". This functionality requires a special hardware sideband path that will trigger the AON_PM_L2 interrupt needed to wake the system from S2 even though the USB host controllers are in IDDQ (low power state) and most USB related clocks are shut off. For the sideband signaling to work we need to leave the usbx_freerun clock running, but this clock consumes very little power by design. There's a bug in the XHCI wake hardware so only EHCI/OHCI wake is currently supported. Signed-off-by: Al Cooper Reviewed-by: Florian Fainelli Signed-off-by: Kishon Vijay Abraham I