On Fri, 12 Apr 2024 13:57:01 +0300 (EEST) Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx> wrote: > On Thu, 11 Apr 2024, parker@xxxxxxxxx wrote: > > > From: Parker Newman <pnewman@xxxxxxxxxxxxxxx> > > > > - Removed old port setup function and replaced with UART specific ones > > - Added board setup functions for CTI boards > > - Replaced CONNECT_DEVICE macro with CTI_EXAR_DEVICE and CTI_PCI_DEVICE > > In general, you should try to do refactoring in a preparatory patch (one > refactoring thing at a time) and add new stuff in another patch in > the series. I didn't go to figure out how much it applies to those three > items because you likely know the answer immediately. > > > - Moved "generic rs485" support up in the file > > Please do this in a separate patch. > Will do. > > Another general level problem with your series is that it adds functions > x, y, etc. without users, whereas the expected way of doing things would > be to add the functions in the change they are getting used so it's easier > to follow what's going on. > > I believe if you separate the refactoring & moving code around into own > changes (no functional change type patches), the new stuff is much > smaller so there is no need to split that illogically into incomplete > fragments in some patches. > > -- > i. > Thanks for the feedback, I am new to the mailing lists and am trying to balance what you mention above with not having giant patches. > > Signed-off-by: Parker Newman <pnewman@xxxxxxxxxxxxxxx> > > --- > > drivers/tty/serial/8250/8250_exar.c | 454 ++++++++++++++++++++++++---- > > 1 file changed, 401 insertions(+), 53 deletions(-) > > > > diff --git a/drivers/tty/serial/8250/8250_exar.c b/drivers/tty/serial/8250/8250_exar.c > > index 6f3697e34722..d8425113a9f1 100644 > > --- a/drivers/tty/serial/8250/8250_exar.c > > +++ b/drivers/tty/serial/8250/8250_exar.c > > @@ -440,6 +440,31 @@ static int exar_mpio_set(struct exar8250 *priv, > > return 0; > > } > > > > +static int generic_rs485_config(struct uart_port *port, struct ktermios *termios, > > + struct serial_rs485 *rs485) > > +{ > > + bool is_rs485 = !!(rs485->flags & SER_RS485_ENABLED); > > + u8 __iomem *p = port->membase; > > + u8 value; > > + > > + value = readb(p + UART_EXAR_FCTR); > > + if (is_rs485) > > + value |= UART_FCTR_EXAR_485; > > + else > > + value &= ~UART_FCTR_EXAR_485; > > + > > + writeb(value, p + UART_EXAR_FCTR); > > + > > + if (is_rs485) > > + writeb(UART_EXAR_RS485_DLY(4), p + UART_MSR); > > + > > + return 0; > > +} > > + > > +static const struct serial_rs485 generic_rs485_supported = { > > + .flags = SER_RS485_ENABLED | SER_RS485_RTS_ON_SEND, > > +}; > > + > > static void exar_pm(struct uart_port *port, unsigned int state, unsigned int old) > > { > > /* > > @@ -875,15 +900,332 @@ static enum cti_port_type cti_get_port_type_xr17v35x(struct exar8250 *priv, > > return port_type; > > } > > > > -static int > > -pci_connect_tech_setup(struct exar8250 *priv, struct pci_dev *pcidev, > > - struct uart_8250_port *port, int idx) > > +static int cti_rs485_config_mpio_tristate(struct uart_port *port, > > + struct ktermios *termios, > > + struct serial_rs485 *rs485) > > { > > - unsigned int offset = idx * 0x200; > > - unsigned int baud = 1843200; > > + struct exar8250 *priv; > > + int ret; > > > > - port->port.uartclk = baud * 16; > > - return default_setup(priv, pcidev, idx, offset, port); > > + priv = (struct exar8250 *)port->private_data; > > + if (!priv) > > + return -EINVAL; > > + > > + ret = generic_rs485_config(port, termios, rs485); > > + if (ret) > > + return ret; > > + > > + //disable power-on tri-state via MPIO > > + return cti_set_tristate(priv, port->port_id, false); > > +} > > + > > +static int cti_port_setup_common(struct exar8250 *priv, > > + int idx, unsigned int offset, > > + struct uart_8250_port *port) > > +{ > > + int ret; > > + > > + if (!priv || !port) > > + return -EINVAL; > > + > > + if (priv->osc_freq == 0) > > + return -EINVAL; > > + > > + port->port.port_id = idx; > > + port->port.uartclk = priv->osc_freq; > > + > > + ret = serial8250_pci_setup_port(priv->pcidev, port, 0, offset, 0); > > + if (ret) { > > + pci_err(priv->pcidev, > > + "failed to setup pci for port %d err: %d\n", idx, ret); > > + return ret; > > + } > > + > > + port->port.private_data = (void *)priv; > > + port->port.pm = exar_pm; > > + port->port.shutdown = exar_shutdown; > > + > > + return 0; > > +} > > + > > +static int cti_port_setup_fpga(struct exar8250 *priv, > > + struct pci_dev *pcidev, > > + struct uart_8250_port *port, > > + int idx) > > +{ > > + enum cti_port_type port_type; > > + unsigned int offset; > > + > > + port_type = cti_get_port_type_fpga(priv, idx); > > + > > + //FPGA shares port offests with XR17C15X > > + offset = idx * UART_EXAR_XR17C15X_PORT_OFFSET; > > + port->port.type = PORT_XR17D15X; > > + > > + port->port.get_divisor = xr17v35x_get_divisor; > > + port->port.set_divisor = xr17v35x_set_divisor; > > + port->port.startup = xr17v35x_startup; > > + > > + if (CTI_PORT_TYPE_RS485(port_type)) { > > + port->port.rs485_config = generic_rs485_config; > > + port->port.rs485_supported = generic_rs485_supported; > > + } > > + > > + return cti_port_setup_common(priv, idx, offset, port); > > +} > > + > > +static int cti_port_setup_xr17v35x(struct exar8250 *priv, > > + struct pci_dev *pcidev, > > + struct uart_8250_port *port, > > + int idx) > > +{ > > + enum cti_port_type port_type; > > + unsigned int offset; > > + int ret; > > + > > + port_type = cti_get_port_type_xr17v35x(priv, idx); > > + > > + offset = idx * UART_EXAR_XR17V35X_PORT_OFFSET; > > + port->port.type = PORT_XR17V35X; > > + > > + port->port.get_divisor = xr17v35x_get_divisor; > > + port->port.set_divisor = xr17v35x_set_divisor; > > + port->port.startup = xr17v35x_startup; > > + > > + switch (port_type) { > > + case CTI_PORT_TYPE_RS422_485: > > + case CTI_PORT_TYPE_RS232_422_485_HW: > > + port->port.rs485_config = cti_rs485_config_mpio_tristate; > > + port->port.rs485_supported = generic_rs485_supported; > > + break; > > + case CTI_PORT_TYPE_RS232_422_485_SW: > > + case CTI_PORT_TYPE_RS232_422_485_4B: > > + case CTI_PORT_TYPE_RS232_422_485_2B: > > + port->port.rs485_config = generic_rs485_config; > > + port->port.rs485_supported = generic_rs485_supported; > > + break; > > + default: > > + break; > > + } > > + > > + ret = cti_port_setup_common(priv, idx, offset, port); > > + if (ret) > > + return ret; > > + > > + exar_write_reg(priv, (offset + UART_EXAR_8XMODE), 0x00); > > + exar_write_reg(priv, (offset + UART_EXAR_FCTR), UART_FCTR_EXAR_TRGD); > > + exar_write_reg(priv, (offset + UART_EXAR_TXTRG), 128); > > + exar_write_reg(priv, (offset + UART_EXAR_RXTRG), 128); > > + > > + return 0; > > +} > > + > > +static int cti_port_setup_xr17v25x(struct exar8250 *priv, > > + struct pci_dev *pcidev, > > + struct uart_8250_port *port, > > + int idx) > > +{ > > + enum cti_port_type port_type; > > + unsigned int offset; > > + int ret; > > + > > + port_type = cti_get_port_type_xr17c15x_xr17v25x(priv, idx); > > + > > + offset = idx * UART_EXAR_XR17V25X_PORT_OFFSET; > > + port->port.type = PORT_XR17D15X; > > + > > + //xr17v25x supports fractional baudrates > > + port->port.get_divisor = xr17v35x_get_divisor; > > + port->port.set_divisor = xr17v35x_set_divisor; > > + port->port.startup = xr17v35x_startup; > > + > > + if (CTI_PORT_TYPE_RS485(port_type)) { > > + switch (priv->pcidev->subsystem_device) { > > + //These cards support power on 485 tri-state via MPIO > > + case PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_8_SP: > > + case PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_8_SP_485: > > + case PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_4_4_SP: > > + case PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_6_2_SP: > > + case PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_2_6_SP: > > + case PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_2_XP_OPTO_LEFT: > > + case PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_2_XP_OPTO_RIGHT: > > + case PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_4_XP_OPTO: > > + case PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_4_4_XPRS_OPTO: > > + case PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_8_XPRS_LP: > > + case PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_8_XPRS_LP_485: > > + port->port.rs485_config = cti_rs485_config_mpio_tristate; > > + break; > > + //Otherwise auto or no power on 485 tri-state support > > + default: > > + port->port.rs485_config = generic_rs485_config; > > + break; > > + } > > + > > + port->port.rs485_supported = generic_rs485_supported; > > + } > > + > > + ret = cti_port_setup_common(priv, idx, offset, port); > > + if (ret) > > + return ret; > > + > > + exar_write_reg(priv, (offset + UART_EXAR_8XMODE), 0x00); > > + exar_write_reg(priv, (offset + UART_EXAR_FCTR), UART_FCTR_EXAR_TRGD); > > + exar_write_reg(priv, (offset + UART_EXAR_TXTRG), 32); > > + exar_write_reg(priv, (offset + UART_EXAR_RXTRG), 32); > > + > > + return 0; > > +} > > + > > +static int cti_port_setup_xr17c15x(struct exar8250 *priv, > > + struct pci_dev *pcidev, > > + struct uart_8250_port *port, > > + int idx) > > +{ > > + enum cti_port_type port_type; > > + unsigned int offset; > > + > > + port_type = cti_get_port_type_xr17c15x_xr17v25x(priv, idx); > > + > > + offset = idx * UART_EXAR_XR17C15X_PORT_OFFSET; > > + port->port.type = PORT_XR17D15X; > > + > > + if (CTI_PORT_TYPE_RS485(port_type)) { > > + switch (priv->pcidev->subsystem_device) { > > + //These cards support power on 485 tri-state via MPIO > > + case PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_8_SP: > > + case PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_8_SP_485: > > + case PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_4_4_SP: > > + case PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_6_2_SP: > > + case PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_2_6_SP: > > + case PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_2_XP_OPTO_LEFT: > > + case PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_2_XP_OPTO_RIGHT: > > + case PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_4_XP_OPTO: > > + case PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_4_4_XPRS_OPTO: > > + case PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_8_XPRS_LP: > > + case PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_8_XPRS_LP_485: > > + port->port.rs485_config = cti_rs485_config_mpio_tristate; > > + break; > > + //Otherwise auto or no power on 485 tri-state support > > + default: > > + port->port.rs485_config = generic_rs485_config; > > + break; > > + } > > + > > + port->port.rs485_supported = generic_rs485_supported; > > + } > > + > > + return cti_port_setup_common(priv, idx, offset, port); > > +} > > + > > +static int cti_board_setup_xr17v35x(struct exar8250 *priv) > > +{ > > + if (!priv) > > + return -EINVAL; > > + > > + //XR17V35X use the PCIe clock rather than crystal > > + priv->osc_freq = CTI_DEFAULT_PCIE_OSC_FREQ; > > + > > + return 0; > > +} > > + > > +static int cti_board_setup_xr17v25x(struct exar8250 *priv) > > +{ > > + int osc_freq; > > + > > + if (!priv) > > + return -EINVAL; > > + > > + osc_freq = cti_read_osc_freq(priv, CTI_EE_OFF_XR17V25X_OSC_FREQ); > > + if (osc_freq < 0) { > > + pci_warn(priv->pcidev, > > + "failed to read osc freq from EEPROM, using default\n"); > > + osc_freq = CTI_DEFAULT_PCI_OSC_FREQ; > > + } > > + > > + priv->osc_freq = osc_freq; > > + > > + /* enable interupts on cards that need the "PLX fix" */ > > + switch (priv->pcidev->subsystem_device) { > > + case PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_2_XPRS: > > + case PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_4_XPRS_A: > > + case PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_4_XPRS_B: > > + case PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_8_XPRS: > > + case PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_16_XPRS_A: > > + case PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_16_XPRS_B: > > + case PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_2_XPRS_OPTO: > > + case PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_4_XPRS_OPTO_A: > > + case PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_4_XPRS_OPTO_B: > > + cti_set_plx_int_enable(priv, true); > > + break; > > + default: > > + break; > > + } > > + > > + return 0; > > +} > > + > > +static int cti_board_setup_xr17c15x(struct exar8250 *priv) > > +{ > > + int osc_freq; > > + > > + if (!priv) > > + return -EINVAL; > > + > > + osc_freq = cti_read_osc_freq(priv, CTI_EE_OFF_XR17C15X_OSC_FREQ); > > + if (osc_freq <= 0) { > > + pci_warn(priv->pcidev, > > + "failed to read osc freq from EEPROM, using default\n"); > > + osc_freq = CTI_DEFAULT_PCI_OSC_FREQ; > > + } > > + > > + priv->osc_freq = osc_freq; > > + > > + /* enable interrupts on cards that need the "PLX fix" */ > > + switch (priv->pcidev->subsystem_device) { > > + case PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_2_XPRS: > > + case PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_4_XPRS_A: > > + case PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_4_XPRS_B: > > + case PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_8_XPRS: > > + case PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_16_XPRS_A: > > + case PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_16_XPRS_B: > > + case PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_2_XPRS_OPTO: > > + case PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_4_XPRS_OPTO_A: > > + case PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_4_XPRS_OPTO_B: > > + cti_set_plx_int_enable(priv, true); > > + break; > > + default: > > + break; > > + } > > + > > + return 0; > > +} > > + > > +static int cti_board_setup_fpga(struct exar8250 *priv) > > +{ > > + int ret; > > + uint16_t cfg_val; > > + > > + if (!priv) > > + return -EINVAL; > > + > > + //FPGA OSC is fixed to the 33MHz PCI clock > > + priv->osc_freq = CTI_DEFAULT_FPGA_OSC_FREQ; > > + > > + //Enable external interrupts in special cfg space register > > + ret = pci_read_config_word(priv->pcidev, 0x48, &cfg_val); > > + if (ret) > > + return ret; > > + > > + cfg_val |= BIT(15); > > + > > + ret = pci_write_config_word(priv->pcidev, 0x48, cfg_val); > > + if (ret) > > + return ret; > > + > > + //RS485 gate needs to be enabled; otherwise RTS/CTS will not work > > + exar_write_reg(priv, CTI_FPGA_RS485_IO_REG, 0x01); > > + > > + return 0; > > } > > > > static int > > @@ -985,27 +1327,6 @@ static void xr17v35x_unregister_gpio(struct uart_8250_port *port) > > port->port.private_data = NULL; > > } > > > > -static int generic_rs485_config(struct uart_port *port, struct ktermios *termios, > > - struct serial_rs485 *rs485) > > -{ > > - bool is_rs485 = !!(rs485->flags & SER_RS485_ENABLED); > > - u8 __iomem *p = port->membase; > > - u8 value; > > - > > - value = readb(p + UART_EXAR_FCTR); > > - if (is_rs485) > > - value |= UART_FCTR_EXAR_485; > > - else > > - value &= ~UART_FCTR_EXAR_485; > > - > > - writeb(value, p + UART_EXAR_FCTR); > > - > > - if (is_rs485) > > - writeb(UART_EXAR_RS485_DLY(4), p + UART_MSR); > > - > > - return 0; > > -} > > - > > static int sealevel_rs485_config(struct uart_port *port, struct ktermios *termios, > > struct serial_rs485 *rs485) > > { > > @@ -1044,10 +1365,6 @@ static int sealevel_rs485_config(struct uart_port *port, struct ktermios *termio > > return 0; > > } > > > > -static const struct serial_rs485 generic_rs485_supported = { > > - .flags = SER_RS485_ENABLED | SER_RS485_RTS_ON_SEND, > > -}; > > - > > static const struct exar8250_platform exar8250_default_platform = { > > .register_gpio = xr17v35x_register_gpio, > > .unregister_gpio = xr17v35x_unregister_gpio, > > @@ -1408,8 +1725,24 @@ static const struct exar8250_board pbn_fastcom335_8 = { > > .setup = pci_fastcom335_setup, > > }; > > > > -static const struct exar8250_board pbn_connect = { > > - .setup = pci_connect_tech_setup, > > +static const struct exar8250_board pbn_cti_xr17c15x = { > > + .board_setup = cti_board_setup_xr17c15x, > > + .setup = cti_port_setup_xr17c15x, > > +}; > > + > > +static const struct exar8250_board pbn_cti_xr17v25x = { > > + .board_setup = cti_board_setup_xr17v25x, > > + .setup = cti_port_setup_xr17v25x, > > +}; > > + > > +static const struct exar8250_board pbn_cti_xr17v35x = { > > + .board_setup = cti_board_setup_xr17v35x, > > + .setup = cti_port_setup_xr17v35x, > > +}; > > + > > +static const struct exar8250_board pbn_cti_fpga = { > > + .board_setup = cti_board_setup_fpga, > > + .setup = cti_port_setup_fpga, > > }; > > > > static const struct exar8250_board pbn_exar_ibm_saturn = { > > @@ -1456,15 +1789,27 @@ static const struct exar8250_board pbn_exar_XR17V8358 = { > > .exit = pci_xr17v35x_exit, > > }; > > > > -#define CONNECT_DEVICE(devid, sdevid, bd) { \ > > - PCI_DEVICE_SUB( \ > > - PCI_VENDOR_ID_EXAR, \ > > - PCI_DEVICE_ID_EXAR_##devid, \ > > - PCI_SUBVENDOR_ID_CONNECT_TECH, \ > > - PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_##sdevid), 0, 0, \ > > - (kernel_ulong_t)&bd \ > > +//For Connect Tech cards with Exar vendor/device PCI IDs > > +#define CTI_EXAR_DEVICE(devid, bd) { \ > > + PCI_DEVICE_SUB( \ > > + PCI_VENDOR_ID_EXAR, \ > > + PCI_DEVICE_ID_EXAR_##devid, \ > > + PCI_SUBVENDOR_ID_CONNECT_TECH, \ > > + PCI_ANY_ID), 0, 0, \ > > + (kernel_ulong_t)&bd \ > > + } > > + > > +//For Connect Tech cards with Connect Tech vendor/device PCI IDs (FPGA based) > > +#define CTI_PCI_DEVICE(devid, bd) { \ > > + PCI_DEVICE_SUB( \ > > + PCI_VENDOR_ID_CONNECT_TECH, \ > > + PCI_DEVICE_ID_CONNECT_TECH_PCI_##devid, \ > > + PCI_ANY_ID, \ > > + PCI_ANY_ID), 0, 0, \ > > + (kernel_ulong_t)&bd \ > > } > > > > + > > #define EXAR_DEVICE(vend, devid, bd) { PCI_DEVICE_DATA(vend, devid, &bd) } > > > > #define IBM_DEVICE(devid, sdevid, bd) { \ > > @@ -1494,18 +1839,21 @@ static const struct pci_device_id exar_pci_tbl[] = { > > EXAR_DEVICE(ACCESSIO, COM_4SM, pbn_exar_XR17C15x), > > EXAR_DEVICE(ACCESSIO, COM_8SM, pbn_exar_XR17C15x), > > > > - CONNECT_DEVICE(XR17C152, UART_2_232, pbn_connect), > > - CONNECT_DEVICE(XR17C154, UART_4_232, pbn_connect), > > - CONNECT_DEVICE(XR17C158, UART_8_232, pbn_connect), > > - CONNECT_DEVICE(XR17C152, UART_1_1, pbn_connect), > > - CONNECT_DEVICE(XR17C154, UART_2_2, pbn_connect), > > - CONNECT_DEVICE(XR17C158, UART_4_4, pbn_connect), > > - CONNECT_DEVICE(XR17C152, UART_2, pbn_connect), > > - CONNECT_DEVICE(XR17C154, UART_4, pbn_connect), > > - CONNECT_DEVICE(XR17C158, UART_8, pbn_connect), > > - CONNECT_DEVICE(XR17C152, UART_2_485, pbn_connect), > > - CONNECT_DEVICE(XR17C154, UART_4_485, pbn_connect), > > - CONNECT_DEVICE(XR17C158, UART_8_485, pbn_connect), > > + CTI_EXAR_DEVICE(XR17C152, pbn_cti_xr17c15x), > > + CTI_EXAR_DEVICE(XR17C154, pbn_cti_xr17c15x), > > + CTI_EXAR_DEVICE(XR17C158, pbn_cti_xr17c15x), > > + > > + CTI_EXAR_DEVICE(XR17V252, pbn_cti_xr17v25x), > > + CTI_EXAR_DEVICE(XR17V254, pbn_cti_xr17v25x), > > + CTI_EXAR_DEVICE(XR17V258, pbn_cti_xr17v25x), > > + > > + CTI_EXAR_DEVICE(XR17V352, pbn_cti_xr17v35x), > > + CTI_EXAR_DEVICE(XR17V354, pbn_cti_xr17v35x), > > + CTI_EXAR_DEVICE(XR17V358, pbn_cti_xr17v35x), > > + > > + CTI_PCI_DEVICE(XR79X_12_XIG00X, pbn_cti_fpga), > > + CTI_PCI_DEVICE(XR79X_12_XIG01X, pbn_cti_fpga), > > + CTI_PCI_DEVICE(XR79X_16, pbn_cti_fpga), > > > > IBM_DEVICE(XR17C152, SATURN_SERIAL_ONE_PORT, pbn_exar_ibm_saturn), > > > > -- > > 2.43.2 > > > >