diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/tty/serial/8250/8250_dw.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c index 1769808031c5..f564a019a7be 100644 --- a/drivers/tty/serial/8250/8250_dw.c +++ b/drivers/tty/serial/8250/8250_dw.c @@ -37,6 +37,11 @@ /* DesignWare specific register fields */ #define DW_UART_MCR_SIRE BIT(6) +/* Quirks */ +#define DW_UART_QUIRK_OCTEON BIT(0) +#define DW_UART_QUIRK_ARMADA_38X BIT(1) +#define DW_UART_QUIRK_SKIP_SET_RATE BIT(2) + struct dw8250_data { struct dw8250_port_data data; @@ -389,6 +394,7 @@ static void dw8250_quirks(struct uart_port *p, struct dw8250_data *data) struct device_node *np = p->dev->of_node; if (np) { + unsigned long quirks = (unsigned long)of_device_get_match_data(p->dev); int id; /* get index of serial line, if found in DT aliases */ @@ -396,7 +402,7 @@ static void dw8250_quirks(struct uart_port *p, struct dw8250_data *data) if (id >= 0) p->line = id; #ifdef CONFIG_64BIT - if (of_device_is_compatible(np, "cavium,octeon-3860-uart")) { + if (quirks & DW_UART_QUIRK_OCTEON) { p->serial_in = dw8250_serial_inq; p->serial_out = dw8250_serial_outq; p->flags = UPF_SKIP_TEST | UPF_SHARE_IRQ | UPF_FIXED_TYPE; @@ -412,9 +418,9 @@ static void dw8250_quirks(struct uart_port *p, struct dw8250_data *data) p->serial_out = dw8250_serial_out32be; } - if (of_device_is_compatible(np, "marvell,armada-38x-uart")) + if (quirks & DW_UART_QUIRK_ARMADA_38X) p->serial_out = dw8250_serial_out38x; - if (of_device_is_compatible(np, "starfive,jh7100-uart")) + if (quirks & DW_UART_QUIRK_SKIP_SET_RATE) p->set_termios = dw8250_do_set_termios; } else if (acpi_dev_present("APMC0D08", NULL, -1)) { @@ -695,10 +701,10 @@ static const struct dev_pm_ops dw8250_pm_ops = { static const struct of_device_id dw8250_of_match[] = { { .compatible = "snps,dw-apb-uart" }, - { .compatible = "cavium,octeon-3860-uart" }, - { .compatible = "marvell,armada-38x-uart" }, + { .compatible = "cavium,octeon-3860-uart", .data = (void *)DW_UART_QUIRK_OCTEON }, + { .compatible = "marvell,armada-38x-uart", .data = (void *)DW_UART_QUIRK_ARMADA_38X }, { .compatible = "renesas,rzn1-uart" }, - { .compatible = "starfive,jh7100-uart" }, + { .compatible = "starfive,jh7100-uart", .data = (void *)DW_UART_QUIRK_SKIP_SET_RATE }, { /* Sentinel */ } }; MODULE_DEVICE_TABLE(of, dw8250_of_match); |