amba-pl011.c (dd84cfff3cc3b79c9d616f85bd1178df135cbd1a) amba-pl011.c (0139da50dc53f0ce2804e83566d290c7e626fd17)
1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * Driver for AMBA serial ports
4 *
5 * Based on drivers/char/serial.c, by Linus Torvalds, Theodore Ts'o.
6 *
7 * Copyright 1999 ARM Limited
8 * Copyright (C) 2000 Deep Blue Solutions Ltd.

--- 2183 unchanged lines hidden (view full) ---

2192 ret = -EINVAL;
2193 if (ser->baud_base < 9600)
2194 ret = -EINVAL;
2195 if (port->mapbase != (unsigned long) ser->iomem_base)
2196 ret = -EINVAL;
2197 return ret;
2198}
2199
1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * Driver for AMBA serial ports
4 *
5 * Based on drivers/char/serial.c, by Linus Torvalds, Theodore Ts'o.
6 *
7 * Copyright 1999 ARM Limited
8 * Copyright (C) 2000 Deep Blue Solutions Ltd.

--- 2183 unchanged lines hidden (view full) ---

2192 ret = -EINVAL;
2193 if (ser->baud_base < 9600)
2194 ret = -EINVAL;
2195 if (port->mapbase != (unsigned long) ser->iomem_base)
2196 ret = -EINVAL;
2197 return ret;
2198}
2199
2200static int pl011_rs485_config(struct uart_port *port,
2200static int pl011_rs485_config(struct uart_port *port, struct ktermios *termios,
2201 struct serial_rs485 *rs485)
2202{
2203 struct uart_amba_port *uap =
2204 container_of(port, struct uart_amba_port, port);
2205
2206 if (port->rs485.flags & SER_RS485_ENABLED)
2207 pl011_rs485_tx_stop(uap);
2208

--- 467 unchanged lines hidden (view full) ---

2676 return i;
2677
2678 return -EBUSY;
2679}
2680
2681static int pl011_get_rs485_mode(struct uart_amba_port *uap)
2682{
2683 struct uart_port *port = &uap->port;
2201 struct serial_rs485 *rs485)
2202{
2203 struct uart_amba_port *uap =
2204 container_of(port, struct uart_amba_port, port);
2205
2206 if (port->rs485.flags & SER_RS485_ENABLED)
2207 pl011_rs485_tx_stop(uap);
2208

--- 467 unchanged lines hidden (view full) ---

2676 return i;
2677
2678 return -EBUSY;
2679}
2680
2681static int pl011_get_rs485_mode(struct uart_amba_port *uap)
2682{
2683 struct uart_port *port = &uap->port;
2684 struct serial_rs485 *rs485 = &port->rs485;
2685 int ret;
2686
2687 ret = uart_get_rs485_mode(port);
2688 if (ret)
2689 return ret;
2690
2684 int ret;
2685
2686 ret = uart_get_rs485_mode(port);
2687 if (ret)
2688 return ret;
2689
2691 /* clamp the delays to [0, 100ms] */
2692 rs485->delay_rts_before_send = min(rs485->delay_rts_before_send, 100U);
2693 rs485->delay_rts_after_send = min(rs485->delay_rts_after_send, 100U);
2694
2695 return 0;
2696}
2697
2698static int pl011_setup_port(struct device *dev, struct uart_amba_port *uap,
2699 struct resource *mmiobase, int index)
2700{
2701 void __iomem *base;
2702 int ret;

--- 43 unchanged lines hidden (view full) ---

2746
2747 ret = uart_add_one_port(&amba_reg, &uap->port);
2748 if (ret)
2749 pl011_unregister_port(uap);
2750
2751 return ret;
2752}
2753
2690 return 0;
2691}
2692
2693static int pl011_setup_port(struct device *dev, struct uart_amba_port *uap,
2694 struct resource *mmiobase, int index)
2695{
2696 void __iomem *base;
2697 int ret;

--- 43 unchanged lines hidden (view full) ---

2741
2742 ret = uart_add_one_port(&amba_reg, &uap->port);
2743 if (ret)
2744 pl011_unregister_port(uap);
2745
2746 return ret;
2747}
2748
2749static const struct serial_rs485 pl011_rs485_supported = {
2750 .flags = SER_RS485_ENABLED | SER_RS485_RTS_ON_SEND | SER_RS485_RTS_AFTER_SEND |
2751 SER_RS485_RX_DURING_TX,
2752 .delay_rts_before_send = 1,
2753 .delay_rts_after_send = 1,
2754};
2755
2754static int pl011_probe(struct amba_device *dev, const struct amba_id *id)
2755{
2756 struct uart_amba_port *uap;
2757 struct vendor_data *vendor = id->data;
2758 int portnr, ret;
2759
2760 portnr = pl011_find_free_port();
2761 if (portnr < 0)

--- 10 unchanged lines hidden (view full) ---

2772
2773 uap->reg_offset = vendor->reg_offset;
2774 uap->vendor = vendor;
2775 uap->fifosize = vendor->get_fifosize(dev);
2776 uap->port.iotype = vendor->access_32b ? UPIO_MEM32 : UPIO_MEM;
2777 uap->port.irq = dev->irq[0];
2778 uap->port.ops = &amba_pl011_pops;
2779 uap->port.rs485_config = pl011_rs485_config;
2756static int pl011_probe(struct amba_device *dev, const struct amba_id *id)
2757{
2758 struct uart_amba_port *uap;
2759 struct vendor_data *vendor = id->data;
2760 int portnr, ret;
2761
2762 portnr = pl011_find_free_port();
2763 if (portnr < 0)

--- 10 unchanged lines hidden (view full) ---

2774
2775 uap->reg_offset = vendor->reg_offset;
2776 uap->vendor = vendor;
2777 uap->fifosize = vendor->get_fifosize(dev);
2778 uap->port.iotype = vendor->access_32b ? UPIO_MEM32 : UPIO_MEM;
2779 uap->port.irq = dev->irq[0];
2780 uap->port.ops = &amba_pl011_pops;
2781 uap->port.rs485_config = pl011_rs485_config;
2782 uap->port.rs485_supported = pl011_rs485_supported;
2780 snprintf(uap->type, sizeof(uap->type), "PL011 rev%u", amba_rev(dev));
2781
2782 ret = pl011_setup_port(&dev->dev, uap, &dev->res, portnr);
2783 if (ret)
2784 return ret;
2785
2786 amba_set_drvdata(dev, uap);
2787

--- 183 unchanged lines hidden --- 		2783 snprintf(uap->type, sizeof(uap->type), "PL011 rev%u", amba_rev(dev));
2784
2785 ret = pl011_setup_port(&dev->dev, uap, &dev->res, portnr);
2786 if (ret)
2787 return ret;
2788
2789 amba_set_drvdata(dev, uap);
2790

--- 183 unchanged lines hidden ---