Some of the later revisions of the Brainboxes PX cards are based on the Oxford Semiconductor chipset. Due to the chip's unique setup these cards need to be initialised. Previously these were tested against a reference card with the same broken baudrate on another PC, cancelling out the effect. With this patch they work and can transfer/receive find against an FTDI-based device.

Add all of the cards which require this setup to the quirks table. Thanks to Maciej W. Rozycki for clarification on this chip.

Fixes: ef5a03a26c87 ("tty: 8250: Add support for Brainboxes PX cards.") Cc: stable@vger.kernel.org Signed-off-by: Cameron Williams cang1@live.co.uk --- For stable: This patch is only applicable to 5.15 LTS and up, other LTS kernels dont have the quirks available that this patch uses nor do they support the cards these quirks target.

v3 - v4: Add Fixes: and Cc: tag.

v2 - v3: Re-submit patch series using git send-email to make threading work.

v1 - v2: This is a resubmission series for the patch series below. That series was lots of changes sent to lots of maintainers, this series is just for the tty/serial/8250 subsystem.

[1] https://lore.kernel.org/all/DU0PR02MB789950E64D808DB57E9D7312C4F8A@DU0PR02MB... [2] https://lore.kernel.org/all/DU0PR02MB7899DE53DFC900EFB50E53F2C4F8A@DU0PR02MB... [3] https://lore.kernel.org/all/DU0PR02MB7899033E7E81EAF3694BC20AC4F8A@DU0PR02MB... [4] https://lore.kernel.org/all/DU0PR02MB7899EABA8C3DCAC94DCC79D4C4F8A@DU0PR02MB...

drivers/tty/serial/8250/8250_pci.c | 147 +++++++++++++++++++++++++++++ 1 file changed, 147 insertions(+)

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c index af970b372cc2..5b024df54844 100644 --- a/drivers/tty/serial/8250/8250_pci.c +++ b/drivers/tty/serial/8250/8250_pci.c @@ -2429,6 +2429,153 @@ static struct pci_serial_quirk pci_serial_quirks[] = { .init = pci_oxsemi_tornado_init, .setup = pci_oxsemi_tornado_setup, }, + /* + * Brainboxes devices - all Oxsemi based + */ + { + .vendor = PCI_VENDOR_ID_INTASHIELD, + .device = 0x4027, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .init = pci_oxsemi_tornado_init, + .setup = pci_oxsemi_tornado_setup, + }, + { + .vendor = PCI_VENDOR_ID_INTASHIELD, + .device = 0x4028, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .init = pci_oxsemi_tornado_init, + .setup = pci_oxsemi_tornado_setup, + }, + { + .vendor = PCI_VENDOR_ID_INTASHIELD, + .device = 0x4029, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .init = pci_oxsemi_tornado_init, + .setup = pci_oxsemi_tornado_setup, + }, + { + .vendor = PCI_VENDOR_ID_INTASHIELD, + .device = 0x4019, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .init = pci_oxsemi_tornado_init, + .setup = pci_oxsemi_tornado_setup, + }, + { + .vendor = PCI_VENDOR_ID_INTASHIELD, + .device = 0x4016, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .init = pci_oxsemi_tornado_init, + .setup = pci_oxsemi_tornado_setup, + }, + { + .vendor = PCI_VENDOR_ID_INTASHIELD, + .device = 0x4015, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .init = pci_oxsemi_tornado_init, + .setup = pci_oxsemi_tornado_setup, + }, + { + .vendor = PCI_VENDOR_ID_INTASHIELD, + .device = 0x400A, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .init = pci_oxsemi_tornado_init, + .setup = pci_oxsemi_tornado_setup, + }, + { + .vendor = PCI_VENDOR_ID_INTASHIELD, + .device = 0x400E, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .init = pci_oxsemi_tornado_init, + .setup = pci_oxsemi_tornado_setup, + }, + { + .vendor = PCI_VENDOR_ID_INTASHIELD, + .device = 0x400C, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .init = pci_oxsemi_tornado_init, + .setup = pci_oxsemi_tornado_setup, + }, + { + .vendor = PCI_VENDOR_ID_INTASHIELD, + .device = 0x400B, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .init = pci_oxsemi_tornado_init, + .setup = pci_oxsemi_tornado_setup, + }, + { + .vendor = PCI_VENDOR_ID_INTASHIELD, + .device = 0x400F, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .init = pci_oxsemi_tornado_init, + .setup = pci_oxsemi_tornado_setup, + }, + { + .vendor = PCI_VENDOR_ID_INTASHIELD, + .device = 0x4010, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .init = pci_oxsemi_tornado_init, + .setup = pci_oxsemi_tornado_setup, + }, + { + .vendor = PCI_VENDOR_ID_INTASHIELD, + .device = 0x4011, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .init = pci_oxsemi_tornado_init, + .setup = pci_oxsemi_tornado_setup, + }, + { + .vendor = PCI_VENDOR_ID_INTASHIELD, + .device = 0x401D, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .init = pci_oxsemi_tornado_init, + .setup = pci_oxsemi_tornado_setup, + }, + { + .vendor = PCI_VENDOR_ID_INTASHIELD, + .device = 0x401E, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .init = pci_oxsemi_tornado_init, + .setup = pci_oxsemi_tornado_setup, + }, + { + .vendor = PCI_VENDOR_ID_INTASHIELD, + .device = 0x4013, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .init = pci_oxsemi_tornado_init, + .setup = pci_oxsemi_tornado_setup, + }, + { + .vendor = PCI_VENDOR_ID_INTASHIELD, + .device = 0x4017, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .init = pci_oxsemi_tornado_init, + .setup = pci_oxsemi_tornado_setup, + }, + { + .vendor = PCI_VENDOR_ID_INTASHIELD, + .device = 0x4018, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .init = pci_oxsemi_tornado_init, + .setup = pci_oxsemi_tornado_setup, + }, { .vendor = PCI_VENDOR_ID_INTEL, .device = 0x8811,