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path: root/drivers/usb/misc/onboard_usb_hub.h
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2023-11-27usb: misc: onboard_usb_hub: Add support for Cypress CY7C6563xFrieder Schrempf1-0/+6
The Cypress CY7C6563x is a 2/4-port USB 2.0 hub. Add support for this hub in the driver in order to bring up reset, supply or clock dependencies. There is no reset pulse width given in the datasheet so we expect a minimal value of 1us to be enough. This hasn't been tested though due to lack of hardware which has the reset connected to a GPIO. Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de> Link: https://lore.kernel.org/r/20231127112234.109073-3-frieder@fris.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-11-22usb: misc: onboard-hub: add support for Microchip USB5744Stefan Eichenberger1-0/+7
Add support for the Microchip USB5744 USB3.0 and USB2.0 Hub. The Microchip USB5744 supports two power supplies, one for 1V2 and one for 3V3. According to the datasheet there is no need for a delay between power on and reset, so this value is set to 0. Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com> Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com> Cc: stable <stable@kernel.org> Acked-by: Matthias Kaehlcke <mka@chromium.org> Link: https://lore.kernel.org/r/20231113145921.30104-3-francesco@dolcini.it Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-10-16Merge 6.6-rc6 into usb-nextGreg Kroah-Hartman1-0/+1
We need the USB and Thunderbolt fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-10-02usb: misc: onboard_usb_hub: add Genesys Logic gl3510 hub supportJerome Brunet1-0/+1
Add support for the gl3510 4 ports USB3.1 hub. This allows to control its reset pins with a gpio. No public documentation is available for this hub. Using the same reset duration as the gl852g which seems OK. Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Link: https://lore.kernel.org/r/20231002122909.2338049-3-jbrunet@baylibre.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-10-02usb: misc: onboard_hub: add support for Microchip USB2412 USB 2.0 hubJavier Carrasco1-0/+1
The USB2412 is a 2-Port USB 2.0 hub controller that provides a reset pin and a single 3v3 powre source, which makes it suitable to be controlled by the onboard_hub driver. This hub has the same reset timings as USB2514/2517 and the same onboard hub specific-data can be reused for USB2412. Signed-off-by: Javier Carrasco <javier.carrasco@wolfvision.net> Cc: stable <stable@kernel.org> Acked-by: Matthias Kaehlcke <mka@chromium.org> Link: https://lore.kernel.org/r/20230911-topic-2412_onboard_hub-v1-1-7704181ddfff@wolfvision.net Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-07-30usb: misc: onboard-hub: add support for Cypress HX3 USB 3.0 familyBenjamin Bara1-0/+7
The HX3 comes in different variants (up to 4 USB 3.0 ports; multi-TT), e.g. CYUSB330x/CYUSB331x/CYUSB332x/CYUSB230x. It operates with two different power supplies: 1V2 and 3V3. Add the support for this hub, for controlling the reset pin and the power supplies. Reset time is extracted from data sheet, page 24: "The RESETN pin can be tied to VDD_IO through an external resistor and to ground (GND) through an external capacitor (minimum 5 ms time constant)." V_IH min is given at 0.7 * 3V3 (page 34), therefore use 10ms. Also add USB PIDs for the USB 2.0 and USB 3.0 root hub. Acked-by: Matthias Kaehlcke <mka@chromium.org> Signed-off-by: Benjamin Bara <benjamin.bara@skidata.com> Link: https://lore.kernel.org/r/20230620-hx3-v7-2-f79b4b22a1bf@skidata.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-07-30usb: misc: onboard-hub: support multiple power suppliesBenjamin Bara1-0/+7
As some of the onboard hubs require multiple power supplies, provide the environment to support them. Signed-off-by: Benjamin Bara <benjamin.bara@skidata.com> Acked-by: Matthias Kaehlcke <mka@chromium.org> Link: https://lore.kernel.org/r/20230620-hx3-v7-1-f79b4b22a1bf@skidata.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-07-25usb: misc: onboard_usb_hub: add Genesys Logic GL3523 hub supportAnand Moon1-0/+1
Genesys Logic GL3523 is a 4-port USB 3.1 hub that has a reset pin to toggle and a 5.0V core supply exported though an integrated LDO is available for powering it. Add the support for this hub, for controlling the reset pin and the core power supply. Signed-off-by: Anand Moon <linux.amoon@gmail.com> [m.felsch@pengutronix.de: include review feedback & port to 6.4] Signed-off-by: Marco Felsch <m.felsch@pengutronix.de> Link: https://lore.kernel.org/r/20230623142228.4069084-2-m.felsch@pengutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-09usb: misc: onboard-hub: add support for Microchip USB2517 USB 2.0 hubAlexander Stein1-0/+1
Add support for Microchip USB2517 USB 2.0 hub to the onboard usb hub driver. Adopt the generic usb-device compatible ("usbVID,PID"). This hub has the same reset timings as USB2514, so reuse that one. There is also an USB2517I which just has industrial temperature range. Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com> Cc: stable <stable@kernel.org> Acked-by: Matthias Kaehlcke <mka@chromium.org> Link: https://lore.kernel.org/r/20230223073920.2912298-1-alexander.stein@ew.tq-group.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-01-19usb: misc: onboard_usb_hub: add VIA LAB VL817 hub supportAnand Moon1-0/+6
VIA LAB VL817 is a 4-port USB 3.1 hub and USB 2.0 root hub that has a reset pin to toggle and a 5.0V core supply exported though an integrated LDO is available for powering it. Add the support for this hub, for controlling the reset pin and the core power supply. Add USB device id's for USB 2.0 and USB 3.0 root hub. Signed-off-by: Anand Moon <linux.amoon@gmail.com> Acked-by: Matthias Kaehlcke <mka@chromium.org> Link: https://lore.kernel.org/r/20230118044418.875-9-linux.amoon@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-01-19usb: misc: onboard_usb_hub: add Genesys Logic GL852G hub supportAnand Moon1-0/+5
Genesys Logic GL852G is a 4-port USB 2.0 STT hub that has a reset pin to toggle and a 5.0V core supply exported though an integrated LDO is available for powering it. Add the support for this hub, for controlling the reset pin and the core power supply. Signed-off-by: Anand Moon <linux.amoon@gmail.com> Acked-by: Matthias Kaehlcke <mka@chromium.org> Link: https://lore.kernel.org/r/20230118044418.875-5-linux.amoon@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-12-08usb: misc: onboard_usb_hub: add Genesys Logic GL850G hub supportIcenowy Zheng1-0/+5
Genesys Logic GL850G is a 4-port USB 2.0 STT hub that has a reset pin to toggle and a 3.3V core supply exported (although an integrated LDO is available for powering it with 5V). Add the support for this hub, for controlling the reset pin and the core power supply. Signed-off-by: Icenowy Zheng <uwu@icenowy.me> Acked-by: Matthias Kaehlcke <mka@chromium.org> Link: https://lore.kernel.org/r/20221206055228.306074-4-uwu@icenowy.me Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-07-27usb: misc: onboard_usb_hub: Add TI USB8041 hub supportAlexander Stein1-0/+6
This is a 4-port 3.0 USB hub. Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com> Link: https://lore.kernel.org/r/20220727141117.909361-2-alexander.stein@ew.tq-group.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-07-27usb: misc: onboard_usb_hub: Add reset-gpio supportAlexander Stein1-5/+17
Despite default reset upon probe, release reset line after powering up the hub and assert reset again before powering down. Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com> Link: https://lore.kernel.org/r/20220727141117.909361-1-alexander.stein@ew.tq-group.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-07-27usb: misc: onboard-hub: add support for Microchip USB2514B USB 2.0 hubFabrice Gasnier1-0/+1
Add support for Microchip USB2514B USB 2.0 hub to the onboard usb hub driver. Adopt the generic usb-device compatible ("usbVID,PID"). Some STM32MP1 boards have this hub on-board, with a supply that needs to be enabled for proper operation. Acked-by: Matthias Kaehlcke <mka@chromium.org> Signed-off-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com> Link: https://lore.kernel.org/r/20220726080708.162547-3-fabrice.gasnier@foss.st.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-07-08usb: misc: Add onboard_usb_hub driverMatthias Kaehlcke1-0/+17
The main issue this driver addresses is that a USB hub needs to be powered before it can be discovered. For discrete onboard hubs (an example for such a hub is the Realtek RTS5411) this is often solved by supplying the hub with an 'always-on' regulator, which is kind of a hack. Some onboard hubs may require further initialization steps, like changing the state of a GPIO or enabling a clock, which requires even more hacks. This driver creates a platform device representing the hub which performs the necessary initialization. Currently it only supports switching on a single regulator, support for multiple regulators or other actions can be added as needed. Different initialization sequences can be supported based on the compatible string. Besides performing the initialization the driver can be configured to power the hub off during system suspend. This can help to extend battery life on battery powered devices which have no requirements to keep the hub powered during suspend. The driver can also be configured to leave the hub powered when a wakeup capable USB device is connected when suspending, and power it off otherwise. Technically the driver consists of two drivers, the platform driver described above and a very thin USB driver that subclasses the generic driver. The purpose of this driver is to provide the platform driver with the USB devices corresponding to the hub(s) (a hub controller may provide multiple 'logical' hubs, e.g. one to support USB 2.0 and another for USB 3.x). Co-developed-by: Ravi Chandra Sadineni <ravisadineni@chromium.org> Reviewed-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: Ravi Chandra Sadineni <ravisadineni@chromium.org> Signed-off-by: Matthias Kaehlcke <mka@chromium.org> Link: https://lore.kernel.org/r/20220630123445.v24.3.I7c9a1f1d6ced41dd8310e8a03da666a32364e790@changeid Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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