diff options
Diffstat (limited to 'drivers/tty/serial/amba-pl011.c')
| -rw-r--r-- | drivers/tty/serial/amba-pl011.c | 371 |
1 files changed, 275 insertions, 96 deletions
diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c index 2296bb0f9578..5cdced39eafd 100644 --- a/drivers/tty/serial/amba-pl011.c +++ b/drivers/tty/serial/amba-pl011.c @@ -42,8 +42,6 @@ #include <linux/io.h> #include <linux/acpi.h> -#include "amba-pl011.h" - #define UART_NR 14 #define SERIAL_AMBA_MAJOR 204 @@ -55,6 +53,36 @@ #define UART_DR_ERROR (UART011_DR_OE|UART011_DR_BE|UART011_DR_PE|UART011_DR_FE) #define UART_DUMMY_DR_RX (1 << 16) +enum { + REG_DR, + REG_ST_DMAWM, + REG_ST_TIMEOUT, + REG_FR, + REG_LCRH_RX, + REG_LCRH_TX, + REG_IBRD, + REG_FBRD, + REG_CR, + REG_IFLS, + REG_IMSC, + REG_RIS, + REG_MIS, + REG_ICR, + REG_DMACR, + REG_ST_XFCR, + REG_ST_XON1, + REG_ST_XON2, + REG_ST_XOFF1, + REG_ST_XOFF2, + REG_ST_ITCR, + REG_ST_ITIP, + REG_ST_ABCR, + REG_ST_ABIMSC, + + /* The size of the array - must be last */ + REG_ARRAY_SIZE, +}; + static u16 pl011_std_offsets[REG_ARRAY_SIZE] = { [REG_DR] = UART01x_DR, [REG_FR] = UART01x_FR, @@ -188,38 +216,6 @@ static struct vendor_data vendor_st = { .get_fifosize = get_fifosize_st, }; -static const u16 pl011_zte_offsets[REG_ARRAY_SIZE] = { - [REG_DR] = ZX_UART011_DR, - [REG_FR] = ZX_UART011_FR, - [REG_LCRH_RX] = ZX_UART011_LCRH, - [REG_LCRH_TX] = ZX_UART011_LCRH, - [REG_IBRD] = ZX_UART011_IBRD, - [REG_FBRD] = ZX_UART011_FBRD, - [REG_CR] = ZX_UART011_CR, - [REG_IFLS] = ZX_UART011_IFLS, - [REG_IMSC] = ZX_UART011_IMSC, - [REG_RIS] = ZX_UART011_RIS, - [REG_MIS] = ZX_UART011_MIS, - [REG_ICR] = ZX_UART011_ICR, - [REG_DMACR] = ZX_UART011_DMACR, -}; - -static unsigned int get_fifosize_zte(struct amba_device *dev) -{ - return 16; -} - -static struct vendor_data vendor_zte = { - .reg_offset = pl011_zte_offsets, - .access_32b = true, - .ifls = UART011_IFLS_RX4_8|UART011_IFLS_TX4_8, - .fr_busy = ZX_UART01x_FR_BUSY, - .fr_dsr = ZX_UART01x_FR_DSR, - .fr_cts = ZX_UART01x_FR_CTS, - .fr_ri = ZX_UART011_FR_RI, - .get_fifosize = get_fifosize_zte, -}; - /* Deals with DMA transactions */ struct pl011_sgbuf { @@ -262,9 +258,10 @@ struct uart_amba_port { unsigned int im; /* interrupt mask */ unsigned int old_status; unsigned int fifosize; /* vendor-specific */ - unsigned int old_cr; /* state during shutdown */ unsigned int fixed_baud; /* vendor-set fixed baud rate */ char type[12]; + bool rs485_tx_started; + unsigned int rs485_tx_drain_interval; /* usecs */ #ifdef CONFIG_DMA_ENGINE /* DMA stuff */ bool using_tx_dma; @@ -275,6 +272,8 @@ struct uart_amba_port { #endif }; +static unsigned int pl011_tx_empty(struct uart_port *port); + static unsigned int pl011_reg_to_offset(const struct uart_amba_port *uap, unsigned int reg) { @@ -308,8 +307,9 @@ static void pl011_write(unsigned int val, const struct uart_amba_port *uap, */ static int pl011_fifo_to_tty(struct uart_amba_port *uap) { - u16 status; unsigned int ch, flag, fifotaken; + int sysrq; + u16 status; for (fifotaken = 0; fifotaken != 256; fifotaken++) { status = pl011_read(uap, REG_FR); @@ -344,10 +344,12 @@ static int pl011_fifo_to_tty(struct uart_amba_port *uap) flag = TTY_FRAME; } - if (uart_handle_sysrq_char(&uap->port, ch & 255)) - continue; + spin_unlock(&uap->port.lock); + sysrq = uart_handle_sysrq_char(&uap->port, ch & 255); + spin_lock(&uap->port.lock); - uart_insert_char(&uap->port, ch, UART011_DR_OE, ch, flag); + if (!sysrq) + uart_insert_char(&uap->port, ch, UART011_DR_OE, ch, flag); } return fifotaken; @@ -934,12 +936,10 @@ static void pl011_dma_rx_chars(struct uart_amba_port *uap, fifotaken = pl011_fifo_to_tty(uap); } - spin_unlock(&uap->port.lock); dev_vdbg(uap->port.dev, "Took %d chars from DMA buffer and %d chars from the FIFO\n", dma_count, fifotaken); tty_flip_buffer_push(port); - spin_lock(&uap->port.lock); } static void pl011_dma_rx_irq(struct uart_amba_port *uap) @@ -1061,7 +1061,7 @@ static void pl011_dma_rx_poll(struct timer_list *t) struct tty_port *port = &uap->port.state->port; struct pl011_dmarx_data *dmarx = &uap->dmarx; struct dma_chan *rxchan = uap->dmarx.chan; - unsigned long flags = 0; + unsigned long flags; unsigned int dmataken = 0; unsigned int size = 0; struct pl011_sgbuf *sgbuf; @@ -1281,6 +1281,47 @@ static inline bool pl011_dma_rx_running(struct uart_amba_port *uap) #define pl011_dma_flush_buffer NULL #endif +static void pl011_rs485_tx_stop(struct uart_amba_port *uap) +{ + /* + * To be on the safe side only time out after twice as many iterations + * as fifo size. + */ + const int MAX_TX_DRAIN_ITERS = uap->port.fifosize * 2; + struct uart_port *port = &uap->port; + int i = 0; + u32 cr; + + /* Wait until hardware tx queue is empty */ + while (!pl011_tx_empty(port)) { + if (i > MAX_TX_DRAIN_ITERS) { + dev_warn(port->dev, + "timeout while draining hardware tx queue\n"); + break; + } + + udelay(uap->rs485_tx_drain_interval); + i++; + } + + if (port->rs485.delay_rts_after_send) + mdelay(port->rs485.delay_rts_after_send); + + cr = pl011_read(uap, REG_CR); + + if (port->rs485.flags & SER_RS485_RTS_AFTER_SEND) + cr &= ~UART011_CR_RTS; + else + cr |= UART011_CR_RTS; + + /* Disable the transmitter and reenable the transceiver */ + cr &= ~UART011_CR_TXE; + cr |= UART011_CR_RXE; + pl011_write(cr, uap, REG_CR); + + uap->rs485_tx_started = false; +} + static void pl011_stop_tx(struct uart_port *port) { struct uart_amba_port *uap = @@ -1289,6 +1330,9 @@ static void pl011_stop_tx(struct uart_port *port) uap->im &= ~UART011_TXIM; pl011_write(uap->im, uap, REG_IMSC); pl011_dma_tx_stop(uap); + + if ((port->rs485.flags & SER_RS485_ENABLED) && uap->rs485_tx_started) + pl011_rs485_tx_stop(uap); } static bool pl011_tx_chars(struct uart_amba_port *uap, bool from_irq); @@ -1323,6 +1367,15 @@ static void pl011_stop_rx(struct uart_port *port) pl011_dma_rx_stop(uap); } +static void pl011_throttle_rx(struct uart_port *port) +{ + unsigned long flags; + + spin_lock_irqsave(&port->lock, flags); + pl011_stop_rx(port); + spin_unlock_irqrestore(&port->lock, flags); +} + static void pl011_enable_ms(struct uart_port *port) { struct uart_amba_port *uap = @@ -1379,6 +1432,32 @@ static bool pl011_tx_char(struct uart_amba_port *uap, unsigned char c, return true; } +static void pl011_rs485_tx_start(struct uart_amba_port *uap) +{ + struct uart_port *port = &uap->port; + u32 cr; + + /* Enable transmitter */ + cr = pl011_read(uap, REG_CR); + cr |= UART011_CR_TXE; + + /* Disable receiver if half-duplex */ + if (!(port->rs485.flags & SER_RS485_RX_DURING_TX)) + cr &= ~UART011_CR_RXE; + + if (port->rs485.flags & SER_RS485_RTS_ON_SEND) + cr &= ~UART011_CR_RTS; + else + cr |= UART011_CR_RTS; + + pl011_write(cr, uap, REG_CR); + + if (port->rs485.delay_rts_before_send) + mdelay(port->rs485.delay_rts_before_send); + + uap->rs485_tx_started = true; +} + /* Returns true if tx interrupts have to be (kept) enabled */ static bool pl011_tx_chars(struct uart_amba_port *uap, bool from_irq) { @@ -1396,6 +1475,10 @@ static bool pl011_tx_chars(struct uart_amba_port *uap, bool from_irq) return false; } + if ((uap->port.rs485.flags & SER_RS485_ENABLED) && + !uap->rs485_tx_started) + pl011_rs485_tx_start(uap); + /* If we are using DMA mode, try to send some characters. */ if (pl011_dma_tx_irq(uap)) return true; @@ -1714,9 +1797,10 @@ static int pl011_allocate_irq(struct uart_amba_port *uap) */ static void pl011_enable_interrupts(struct uart_amba_port *uap) { + unsigned long flags; unsigned int i; - spin_lock_irq(&uap->port.lock); + spin_lock_irqsave(&uap->port.lock, flags); /* Clear out any spuriously appearing RX interrupts */ pl011_write(UART011_RTIS | UART011_RXIS, uap, REG_ICR); @@ -1738,7 +1822,14 @@ static void pl011_enable_interrupts(struct uart_amba_port *uap) if (!pl011_dma_rx_running(uap)) uap->im |= UART011_RXIM; pl011_write(uap->im, uap, REG_IMSC); - spin_unlock_irq(&uap->port.lock); + spin_unlock_irqrestore(&uap->port.lock, flags); +} + +static void pl011_unthrottle_rx(struct uart_port *port) +{ + struct uart_amba_port *uap = container_of(port, struct uart_amba_port, port); + + pl011_enable_interrupts(uap); } static int pl011_startup(struct uart_port *port) @@ -1760,9 +1851,13 @@ static int pl011_startup(struct uart_port *port) spin_lock_irq(&uap->port.lock); - /* restore RTS and DTR */ - cr = uap->old_cr & (UART011_CR_RTS | UART011_CR_DTR); - cr |= UART01x_CR_UARTEN | UART011_CR_RXE | UART011_CR_TXE; + cr = pl011_read(uap, REG_CR); + cr &= UART011_CR_RTS | UART011_CR_DTR; + cr |= UART01x_CR_UARTEN | UART011_CR_RXE; + + if (!(port->rs485.flags & SER_RS485_ENABLED)) + cr |= UART011_CR_TXE; + pl011_write(cr, uap, REG_CR); spin_unlock_irq(&uap->port.lock); @@ -1828,7 +1923,6 @@ static void pl011_disable_uart(struct uart_amba_port *uap) uap->port.status &= ~(UPSTAT_AUTOCTS | UPSTAT_AUTORTS); spin_lock_irq(&uap->port.lock); cr = pl011_read(uap, REG_CR); - uap->old_cr = cr; cr &= UART011_CR_RTS | UART011_CR_DTR; cr |= UART01x_CR_UARTEN | UART011_CR_TXE; pl011_write(cr, uap, REG_CR); @@ -1863,6 +1957,9 @@ static void pl011_shutdown(struct uart_port *port) pl011_dma_shutdown(uap); + if ((port->rs485.flags & SER_RS485_ENABLED) && uap->rs485_tx_started) + pl011_rs485_tx_stop(uap); + free_irq(uap->port.irq, uap); pl011_disable_uart(uap); @@ -1933,13 +2030,14 @@ pl011_setup_status_masks(struct uart_port *port, struct ktermios *termios) static void pl011_set_termios(struct uart_port *port, struct ktermios *termios, - struct ktermios *old) + const struct ktermios *old) { struct uart_amba_port *uap = container_of(port, struct uart_amba_port, port); unsigned int lcr_h, old_cr; unsigned long flags; unsigned int baud, quot, clkdiv; + unsigned int bits; if (uap->vendor->oversampling) clkdiv = 8; @@ -1990,6 +2088,8 @@ pl011_set_termios(struct uart_port *port, struct ktermios *termios, if (uap->fifosize > 1) lcr_h |= UART01x_LCRH_FEN; + bits = tty_get_frame_size(termios->c_cflag); + spin_lock_irqsave(&port->lock, flags); /* @@ -1997,14 +2097,22 @@ pl011_set_termios(struct uart_port *port, struct ktermios *termios, */ uart_update_timeout(port, termios->c_cflag, baud); + /* + * Calculate the approximated time it takes to transmit one character + * with the given baud rate. We use this as the poll interval when we + * wait for the tx queue to empty. + */ + uap->rs485_tx_drain_interval = DIV_ROUND_UP(bits * 1000 * 1000, baud); + pl011_setup_status_masks(port, termios); if (UART_ENABLE_MS(port, termios->c_cflag)) pl011_enable_ms(port); - /* first, disable everything */ + if (port->rs485.flags & SER_RS485_ENABLED) + termios->c_cflag &= ~CRTSCTS; + old_cr = pl011_read(uap, REG_CR); - pl011_write(0, uap, REG_CR); if (termios->c_cflag & CRTSCTS) { if (old_cr & UART011_CR_RTS) @@ -2054,7 +2162,7 @@ pl011_set_termios(struct uart_port *port, struct ktermios *termios, static void sbsa_uart_set_termios(struct uart_port *port, struct ktermios *termios, - struct ktermios *old) + const struct ktermios *old) { struct uart_amba_port *uap = container_of(port, struct uart_amba_port, port); @@ -2081,31 +2189,12 @@ static const char *pl011_type(struct uart_port *port) } /* - * Release the memory region(s) being used by 'port' - */ -static void pl011_release_port(struct uart_port *port) -{ - release_mem_region(port->mapbase, SZ_4K); -} - -/* - * Request the memory region(s) being used by 'port' - */ -static int pl011_request_port(struct uart_port *port) -{ - return request_mem_region(port->mapbase, SZ_4K, "uart-pl011") - != NULL ? 0 : -EBUSY; -} - -/* * Configure/autoconfigure the port. */ static void pl011_config_port(struct uart_port *port, int flags) { - if (flags & UART_CONFIG_TYPE) { + if (flags & UART_CONFIG_TYPE) port->type = PORT_AMBA; - pl011_request_port(port); - } } /* @@ -2120,9 +2209,32 @@ static int pl011_verify_port(struct uart_port *port, struct serial_struct *ser) ret = -EINVAL; if (ser->baud_base < 9600) ret = -EINVAL; + if (port->mapbase != (unsigned long) ser->iomem_base) + ret = -EINVAL; return ret; } +static int pl011_rs485_config(struct uart_port *port, struct ktermios *termios, + struct serial_rs485 *rs485) +{ + struct uart_amba_port *uap = + container_of(port, struct uart_amba_port, port); + + if (port->rs485.flags & SER_RS485_ENABLED) + pl011_rs485_tx_stop(uap); + + /* Make sure auto RTS is disabled */ + if (rs485->flags & SER_RS485_ENABLED) { + u32 cr = pl011_read(uap, REG_CR); + + cr &= ~UART011_CR_RTSEN; + pl011_write(cr, uap, REG_CR); + port->status &= ~UPSTAT_AUTORTS; + } + + return 0; +} + static const struct uart_ops amba_pl011_pops = { .tx_empty = pl011_tx_empty, .set_mctrl = pl011_set_mctrl, @@ -2130,6 +2242,8 @@ static const struct uart_ops amba_pl011_pops = { .stop_tx = pl011_stop_tx, .start_tx = pl011_start_tx, .stop_rx = pl011_stop_rx, + .throttle = pl011_throttle_rx, + .unthrottle = pl011_unthrottle_rx, .enable_ms = pl011_enable_ms, .break_ctl = pl011_break_ctl, .startup = pl011_startup, @@ -2137,8 +2251,6 @@ static const struct uart_ops amba_pl011_pops = { .flush_buffer = pl011_dma_flush_buffer, .set_termios = pl011_set_termios, .type = pl011_type, - .release_port = pl011_release_port, - .request_port = pl011_request_port, .config_port = pl011_config_port, .verify_port = pl011_verify_port, #ifdef CONFIG_CONSOLE_POLL @@ -2168,8 +2280,6 @@ static const struct uart_ops sbsa_uart_pops = { .shutdown = sbsa_uart_shutdown, .set_termios = sbsa_uart_set_termios, .type = pl011_type, - .release_port = pl011_release_port, - .request_port = pl011_request_port, .config_port = pl011_config_port, .verify_port = pl011_verify_port, #ifdef CONFIG_CONSOLE_POLL @@ -2183,7 +2293,7 @@ static struct uart_amba_port *amba_ports[UART_NR]; #ifdef CONFIG_SERIAL_AMBA_PL011_CONSOLE -static void pl011_console_putchar(struct uart_port *port, int ch) +static void pl011_console_putchar(struct uart_port *port, unsigned char ch) { struct uart_amba_port *uap = container_of(port, struct uart_amba_port, port); @@ -2241,9 +2351,8 @@ pl011_console_write(struct console *co, const char *s, unsigned int count) clk_disable(uap->clk); } -static void __init -pl011_console_get_options(struct uart_amba_port *uap, int *baud, - int *parity, int *bits) +static void pl011_console_get_options(struct uart_amba_port *uap, int *baud, + int *parity, int *bits) { if (pl011_read(uap, REG_CR) & UART01x_CR_UARTEN) { unsigned int lcr_h, ibrd, fbrd; @@ -2276,7 +2385,7 @@ pl011_console_get_options(struct uart_amba_port *uap, int *baud, } } -static int __init pl011_console_setup(struct console *co, char *options) +static int pl011_console_setup(struct console *co, char *options) { struct uart_amba_port *uap; int baud = 38400; @@ -2344,8 +2453,8 @@ static int __init pl011_console_setup(struct console *co, char *options) * * Returns 0 if console matches; otherwise non-zero to use default matching */ -static int __init pl011_console_match(struct console *co, char *name, int idx, - char *options) +static int pl011_console_match(struct console *co, char *name, int idx, + char *options) { unsigned char iotype; resource_size_t addr; @@ -2400,7 +2509,7 @@ static struct console amba_console = { #define AMBA_CONSOLE (&amba_console) -static void qdf2400_e44_putc(struct uart_port *port, int c) +static void qdf2400_e44_putc(struct uart_port *port, unsigned char c) { while (readl(port->membase + UART01x_FR) & UART01x_FR_TXFF) cpu_relax(); @@ -2416,7 +2525,7 @@ static void qdf2400_e44_early_write(struct console *con, const char *s, unsigned uart_console_write(&dev->port, s, n, qdf2400_e44_putc); } -static void pl011_putc(struct uart_port *port, int c) +static void pl011_putc(struct uart_port *port, unsigned char c) { while (readl(port->membase + UART01x_FR) & UART01x_FR_TXFF) cpu_relax(); @@ -2435,6 +2544,37 @@ static void pl011_early_write(struct console *con, const char *s, unsigned n) uart_console_write(&dev->port, s, n, pl011_putc); } +#ifdef CONFIG_CONSOLE_POLL +static int pl011_getc(struct uart_port *port) +{ + if (readl(port->membase + UART01x_FR) & UART01x_FR_RXFE) + return NO_POLL_CHAR; + + if (port->iotype == UPIO_MEM32) + return readl(port->membase + UART01x_DR); + else + return readb(port->membase + UART01x_DR); +} + +static int pl011_early_read(struct console *con, char *s, unsigned int n) +{ + struct earlycon_device *dev = con->data; + int ch, num_read = 0; + + while (num_read < n) { + ch = pl011_getc(&dev->port); + if (ch == NO_POLL_CHAR) + break; + + s[num_read++] = ch; + } + + return num_read; +} +#else +#define pl011_early_read NULL +#endif + /* * On non-ACPI systems, earlycon is enabled by specifying * "earlycon=pl011,<address>" on the kernel command line. @@ -2454,6 +2594,7 @@ static int __init pl011_early_console_setup(struct earlycon_device *device, return -ENODEV; device->con->write = pl011_early_write; + device->con->read = pl011_early_read; return 0; } @@ -2556,10 +2697,23 @@ static int pl011_find_free_port(void) return -EBUSY; } +static int pl011_get_rs485_mode(struct uart_amba_port *uap) +{ + struct uart_port *port = &uap->port; + int ret; + + ret = uart_get_rs485_mode(port); + if (ret) + return ret; + + return 0; +} + static int pl011_setup_port(struct device *dev, struct uart_amba_port *uap, struct resource *mmiobase, int index) { void __iomem *base; + int ret; base = devm_ioremap_resource(dev, mmiobase); if (IS_ERR(base)) @@ -2567,7 +2721,6 @@ static int pl011_setup_port(struct device *dev, struct uart_amba_port *uap, index = pl011_probe_dt_alias(index, dev); - uap->old_cr = 0; uap->port.dev = dev; uap->port.mapbase = mmiobase->start; uap->port.membase = base; @@ -2576,6 +2729,10 @@ static int pl011_setup_port(struct device *dev, struct uart_amba_port *uap, uap->port.flags = UPF_BOOT_AUTOCONF; uap->port.line = index; + ret = pl011_get_rs485_mode(uap); + if (ret) + return ret; + amba_ports[index] = uap; return 0; @@ -2583,7 +2740,7 @@ static int pl011_setup_port(struct device *dev, struct uart_amba_port *uap, static int pl011_register_port(struct uart_amba_port *uap) { - int ret; + int ret, i; /* Ensure interrupts from this UART are masked and cleared */ pl011_write(0, uap, REG_IMSC); @@ -2594,6 +2751,9 @@ static int pl011_register_port(struct uart_amba_port *uap) if (ret < 0) { dev_err(uap->port.dev, "Failed to register AMBA-PL011 driver\n"); + for (i = 0; i < ARRAY_SIZE(amba_ports); i++) + if (amba_ports[i] == uap) + amba_ports[i] = NULL; return ret; } } @@ -2605,11 +2765,19 @@ static int pl011_register_port(struct uart_amba_port *uap) return ret; } +static const struct serial_rs485 pl011_rs485_supported = { + .flags = SER_RS485_ENABLED | SER_RS485_RTS_ON_SEND | SER_RS485_RTS_AFTER_SEND | + SER_RS485_RX_DURING_TX, + .delay_rts_before_send = 1, + .delay_rts_after_send = 1, +}; + static int pl011_probe(struct amba_device *dev, const struct amba_id *id) { struct uart_amba_port *uap; struct vendor_data *vendor = id->data; int portnr, ret; + u32 val; portnr = pl011_find_free_port(); if (portnr < 0) @@ -2630,9 +2798,25 @@ static int pl011_probe(struct amba_device *dev, const struct amba_id *id) uap->port.iotype = vendor->access_32b ? UPIO_MEM32 : UPIO_MEM; uap->port.irq = dev->irq[0]; uap->port.ops = &amba_pl011_pops; - + uap->port.rs485_config = pl011_rs485_config; + uap->port.rs485_supported = pl011_rs485_supported; snprintf(uap->type, sizeof(uap->type), "PL011 rev%u", amba_rev(dev)); + if (device_property_read_u32(&dev->dev, "reg-io-width", &val) == 0) { + switch (val) { + case 1: + uap->port.iotype = UPIO_MEM; + break; + case 4: + uap->port.iotype = UPIO_MEM32; + break; + default: + dev_warn(&dev->dev, "unsupported reg-io-width (%d)\n", + val); + return -EINVAL; + } + } + ret = pl011_setup_port(&dev->dev, uap, &dev->res, portnr); if (ret) return ret; @@ -2642,13 +2826,12 @@ static int pl011_probe(struct amba_device *dev, const struct amba_id *id) return pl011_register_port(uap); } -static int pl011_remove(struct amba_device *dev) +static void pl011_remove(struct amba_device *dev) { struct uart_amba_port *uap = amba_get_drvdata(dev); uart_remove_one_port(&amba_reg, &uap->port); pl011_unregister_port(uap); - return 0; } #ifdef CONFIG_PM_SLEEP @@ -2752,8 +2935,9 @@ static const struct of_device_id sbsa_uart_of_match[] = { }; MODULE_DEVICE_TABLE(of, sbsa_uart_of_match); -static const struct acpi_device_id sbsa_uart_acpi_match[] = { +static const struct acpi_device_id __maybe_unused sbsa_uart_acpi_match[] = { { "ARMH0011", 0 }, + { "ARMHB000", 0 }, {}, }; MODULE_DEVICE_TABLE(acpi, sbsa_uart_acpi_match); @@ -2781,11 +2965,6 @@ static const struct amba_id pl011_ids[] = { .mask = 0x00ffffff, .data = &vendor_st, }, - { - .id = AMBA_LINUX_ID(0x00, 0x1, 0xffe), - .mask = 0x00ffffff, - .data = &vendor_zte, - }, { 0, 0 }, }; |