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| author | Chaoyi Chen <chaoyi.chen@rock-chips.com> | 2026-01-13 17:58:27 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-01-16 13:48:10 +0100 |
| commit | fa3bb5011f33cccd246072954e64d64483d0d774 (patch) | |
| tree | 4524800d10fbd284e5ba7258018ac592995d99bf | |
| parent | 00fcc9c86a134c488fd857b5460a7925228272c1 (diff) | |
| download | linux-fa3bb5011f33cccd246072954e64d64483d0d774.tar.gz linux-fa3bb5011f33cccd246072954e64d64483d0d774.zip | |
usb: misc: onboard_dev: Add WCH CH334 USB2.0 Hub (1a86:8091)
The WCH CH334/CH335[0] are USB2.0 protocol compliant 4-port USB HUB
controller chips, supporting USB2.0 high-speed and full-speed for
upstream ports, and USB2.0 high-speed 480Mbps, full-speed 12Mbps and
low-speed 1.5Mbps for downstream ports, supporting not only low-cost STT
mode (single TT schedules 4 downstream ports in time share), but also
supports high performance MTT mode (4 TTs each corresponding to 1 port,
concurrent processing).
[0]: https://www.wch-ic.com/downloads/CH334DS1_PDF.html
Signed-off-by: Chaoyi Chen <chaoyi.chen@rock-chips.com>
Link: https://patch.msgid.link/20260113095827.115-3-kernel@airkyi.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/misc/onboard_usb_dev.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/usb/misc/onboard_usb_dev.h b/drivers/usb/misc/onboard_usb_dev.h index c1462be5526d..1a1e86e60e04 100644 --- a/drivers/usb/misc/onboard_usb_dev.h +++ b/drivers/usb/misc/onboard_usb_dev.h @@ -115,6 +115,13 @@ static const struct onboard_dev_pdata vialab_vl817_data = { .is_hub = true, }; +static const struct onboard_dev_pdata wch_ch334_data = { + .reset_us = 14000, + .num_supplies = 2, + .supply_names = { "vdd33", "v5" }, + .is_hub = true, +}; + static const struct onboard_dev_pdata xmos_xvf3500_data = { .reset_us = 1, .num_supplies = 2, @@ -146,6 +153,7 @@ static const struct of_device_id onboard_dev_match[] = { { .compatible = "usbbda,5411", .data = &realtek_rts5411_data, }, { .compatible = "usbbda,414", .data = &realtek_rts5411_data, }, { .compatible = "usbbda,5414", .data = &realtek_rts5411_data, }, + { .compatible = "usb1a86,8091", .data = &wch_ch334_data, }, { .compatible = "usb1da0,5511", .data = ¶de_ps5511_data, }, { .compatible = "usb1da0,55a1", .data = ¶de_ps5511_data, }, { .compatible = "usb2109,817", .data = &vialab_vl817_data, }, |