diff options
Diffstat (limited to 'drivers/tty/serial/8250/8250_dwlib.h')
| -rw-r--r-- | drivers/tty/serial/8250/8250_dwlib.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/drivers/tty/serial/8250/8250_dwlib.h b/drivers/tty/serial/8250/8250_dwlib.h index 83d528e5cc21..055bfdc87985 100644 --- a/drivers/tty/serial/8250/8250_dwlib.h +++ b/drivers/tty/serial/8250/8250_dwlib.h @@ -1,10 +1,16 @@ /* SPDX-License-Identifier: GPL-2.0+ */ /* Synopsys DesignWare 8250 library header file. */ +#include <linux/io.h> +#include <linux/notifier.h> #include <linux/types.h> +#include <linux/workqueue.h> #include "8250.h" +struct clk; +struct reset_control; + struct dw8250_port_data { /* Port properties */ int line; @@ -14,7 +20,52 @@ struct dw8250_port_data { /* Hardware configuration */ u8 dlf_size; + + /* RS485 variables */ + bool hw_rs485_support; +}; + +struct dw8250_platform_data { + u8 usr_reg; + u32 cpr_val; + unsigned int quirks; +}; + +struct dw8250_data { + struct dw8250_port_data data; + const struct dw8250_platform_data *pdata; + + int msr_mask_on; + int msr_mask_off; + struct clk *clk; + struct clk *pclk; + struct notifier_block clk_notifier; + struct work_struct clk_work; + struct reset_control *rst; + + unsigned int skip_autocfg:1; + unsigned int uart_16550_compatible:1; }; void dw8250_do_set_termios(struct uart_port *p, struct ktermios *termios, struct ktermios *old); void dw8250_setup_port(struct uart_port *p); + +static inline struct dw8250_data *to_dw8250_data(struct dw8250_port_data *data) +{ + return container_of(data, struct dw8250_data, data); +} + +static inline u32 dw8250_readl_ext(struct uart_port *p, int offset) +{ + if (p->iotype == UPIO_MEM32BE) + return ioread32be(p->membase + offset); + return readl(p->membase + offset); +} + +static inline void dw8250_writel_ext(struct uart_port *p, int offset, u32 reg) +{ + if (p->iotype == UPIO_MEM32BE) + iowrite32be(reg, p->membase + offset); + else + writel(reg, p->membase + offset); +} |