From d0b2f91bede3bd5e3d24dd6803e56eee959c1797 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Thu, 20 Oct 2016 00:10:27 -0300 Subject: Linux-libre 4.8.2-gnu --- drivers/tty/serial/8250/8250.h | 18 +++++----- drivers/tty/serial/8250/8250_core.c | 10 +++--- drivers/tty/serial/8250/8250_dma.c | 1 + drivers/tty/serial/8250/8250_early.c | 1 + drivers/tty/serial/8250/8250_fintek.c | 36 ++++++++++++++++++- drivers/tty/serial/8250/8250_ingenic.c | 2 -- drivers/tty/serial/8250/8250_mid.c | 24 ++++++++++--- drivers/tty/serial/8250/8250_mtk.c | 2 +- drivers/tty/serial/8250/8250_omap.c | 4 +-- drivers/tty/serial/8250/8250_pci.c | 28 +++++++++++++-- drivers/tty/serial/8250/8250_port.c | 64 ++++++++++++++++----------------- drivers/tty/serial/8250/8250_uniphier.c | 2 +- drivers/tty/serial/8250/Kconfig | 5 +-- 13 files changed, 134 insertions(+), 63 deletions(-) (limited to 'drivers/tty/serial/8250') diff --git a/drivers/tty/serial/8250/8250.h b/drivers/tty/serial/8250/8250.h index 215a99237..1a16feac9 100644 --- a/drivers/tty/serial/8250/8250.h +++ b/drivers/tty/serial/8250/8250.h @@ -53,11 +53,9 @@ struct old_serial_port { unsigned int port; unsigned int irq; upf_t flags; - unsigned char hub6; unsigned char io_type; unsigned char __iomem *iomem_base; unsigned short iomem_reg_shift; - unsigned long irqflags; }; struct serial8250_config { @@ -131,6 +129,16 @@ void serial8250_rpm_put(struct uart_8250_port *p); int serial8250_em485_init(struct uart_8250_port *p); void serial8250_em485_destroy(struct uart_8250_port *p); +static inline void serial8250_out_MCR(struct uart_8250_port *up, int value) +{ + serial_out(up, UART_MCR, value); +} + +static inline int serial8250_in_MCR(struct uart_8250_port *up) +{ + return serial_in(up, UART_MCR); +} + #if defined(__alpha__) && !defined(CONFIG_PCI) /* * Digital did something really horribly wrong with the OUT1 and OUT2 @@ -237,9 +245,3 @@ static inline int serial_index(struct uart_port *port) { return port->minor - 64; } - -#if 0 -#define DEBUG_INTR(fmt...) printk(fmt) -#else -#define DEBUG_INTR(fmt...) do { } while (0) -#endif diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c index 0fbd7c033..dcf43f664 100644 --- a/drivers/tty/serial/8250/8250_core.c +++ b/drivers/tty/serial/8250/8250_core.c @@ -114,7 +114,7 @@ static irqreturn_t serial8250_interrupt(int irq, void *dev_id) struct list_head *l, *end = NULL; int pass_counter = 0, handled = 0; - DEBUG_INTR("serial8250_interrupt(%d)...", irq); + pr_debug("%s(%d): start\n", __func__, irq); spin_lock(&i->lock); @@ -144,7 +144,7 @@ static irqreturn_t serial8250_interrupt(int irq, void *dev_id) spin_unlock(&i->lock); - DEBUG_INTR("end.\n"); + pr_debug("%s(%d): end\n", __func__, irq); return IRQ_RETVAL(handled); } @@ -546,10 +546,10 @@ static void __init serial8250_isa_init_ports(void) port->iobase = old_serial_port[i].port; port->irq = irq_canonicalize(old_serial_port[i].irq); - port->irqflags = old_serial_port[i].irqflags; + port->irqflags = 0; port->uartclk = old_serial_port[i].baud_base * 16; port->flags = old_serial_port[i].flags; - port->hub6 = old_serial_port[i].hub6; + port->hub6 = 0; port->membase = old_serial_port[i].iomem_base; port->iotype = old_serial_port[i].io_type; port->regshift = old_serial_port[i].iomem_reg_shift; @@ -675,7 +675,7 @@ static struct console univ8250_console = { .device = uart_console_device, .setup = univ8250_console_setup, .match = univ8250_console_match, - .flags = CON_PRINTBUFFER | CON_ANYTIME, + .flags = CON_PRINTBUFFER | CON_ANYTIME | CON_CONSDEV, .index = -1, .data = &serial8250_reg, }; diff --git a/drivers/tty/serial/8250/8250_dma.c b/drivers/tty/serial/8250/8250_dma.c index 7f33d1c8d..3590d0120 100644 --- a/drivers/tty/serial/8250/8250_dma.c +++ b/drivers/tty/serial/8250/8250_dma.c @@ -145,6 +145,7 @@ void serial8250_rx_dma_flush(struct uart_8250_port *p) dmaengine_terminate_all(dma->rxchan); } } +EXPORT_SYMBOL_GPL(serial8250_rx_dma_flush); int serial8250_request_dma(struct uart_8250_port *p) { diff --git a/drivers/tty/serial/8250/8250_early.c b/drivers/tty/serial/8250/8250_early.c index 8d08ff5c4..85a12f032 100644 --- a/drivers/tty/serial/8250/8250_early.c +++ b/drivers/tty/serial/8250/8250_early.c @@ -150,6 +150,7 @@ EARLYCON_DECLARE(uart, early_serial8250_setup); OF_EARLYCON_DECLARE(ns16550, "ns16550", early_serial8250_setup); OF_EARLYCON_DECLARE(ns16550a, "ns16550a", early_serial8250_setup); OF_EARLYCON_DECLARE(uart, "nvidia,tegra20-uart", early_serial8250_setup); +OF_EARLYCON_DECLARE(uart, "snps,dw-apb-uart", early_serial8250_setup); #ifdef CONFIG_SERIAL_8250_OMAP diff --git a/drivers/tty/serial/8250/8250_fintek.c b/drivers/tty/serial/8250/8250_fintek.c index 870981dd9..0facc789f 100644 --- a/drivers/tty/serial/8250/8250_fintek.c +++ b/drivers/tty/serial/8250/8250_fintek.c @@ -13,6 +13,7 @@ #include #include #include +#include #include "8250.h" #define ADDR_PORT 0 @@ -30,6 +31,12 @@ #define IO_ADDR2 0x60 #define LDN 0x7 +#define FINTEK_IRQ_MODE 0x70 +#define IRQ_SHARE BIT(4) +#define IRQ_MODE_MASK (BIT(6) | BIT(5)) +#define IRQ_LEVEL_LOW 0 +#define IRQ_EDGE_HIGH BIT(5) + #define RS485 0xF0 #define RTS_INVERT BIT(5) #define RS485_URA BIT(4) @@ -176,10 +183,37 @@ static int find_base_port(struct fintek_8250 *pdata, u16 io_address) return -ENODEV; } +static int fintek_8250_set_irq_mode(struct fintek_8250 *pdata, bool level_mode) +{ + int status; + u8 tmp; + + status = fintek_8250_enter_key(pdata->base_port, pdata->key); + if (status) + return status; + + outb(LDN, pdata->base_port + ADDR_PORT); + outb(pdata->index, pdata->base_port + DATA_PORT); + + outb(FINTEK_IRQ_MODE, pdata->base_port + ADDR_PORT); + tmp = inb(pdata->base_port + DATA_PORT); + + tmp &= ~IRQ_MODE_MASK; + tmp |= IRQ_SHARE; + if (!level_mode) + tmp |= IRQ_EDGE_HIGH; + + outb(tmp, pdata->base_port + DATA_PORT); + fintek_8250_exit_key(pdata->base_port); + return 0; +} + int fintek_8250_probe(struct uart_8250_port *uart) { struct fintek_8250 *pdata; struct fintek_8250 probe_data; + struct irq_data *irq_data = irq_get_irq_data(uart->port.irq); + bool level_mode = irqd_is_level_type(irq_data); if (find_base_port(&probe_data, uart->port.iobase)) return -ENODEV; @@ -192,5 +226,5 @@ int fintek_8250_probe(struct uart_8250_port *uart) uart->port.rs485_config = fintek_8250_rs485_config; uart->port.private_data = pdata; - return 0; + return fintek_8250_set_irq_mode(pdata, level_mode); } diff --git a/drivers/tty/serial/8250/8250_ingenic.c b/drivers/tty/serial/8250/8250_ingenic.c index b0677f610..4d9dc10e2 100644 --- a/drivers/tty/serial/8250/8250_ingenic.c +++ b/drivers/tty/serial/8250/8250_ingenic.c @@ -48,7 +48,6 @@ static const struct of_device_id of_match[]; #define UART_MCR_MDCE BIT(7) #define UART_MCR_FCM BIT(6) -#if defined(CONFIG_SERIAL_EARLYCON) && !defined(MODULE) static struct earlycon_device *early_device; static uint8_t __init early_in(struct uart_port *port, int offset) @@ -141,7 +140,6 @@ OF_EARLYCON_DECLARE(jz4775_uart, "ingenic,jz4775-uart", EARLYCON_DECLARE(jz4780_uart, ingenic_early_console_setup); OF_EARLYCON_DECLARE(jz4780_uart, "ingenic,jz4780-uart", ingenic_early_console_setup); -#endif /* CONFIG_SERIAL_EARLYCON */ static void ingenic_uart_serial_out(struct uart_port *p, int offset, int value) { diff --git a/drivers/tty/serial/8250/8250_mid.c b/drivers/tty/serial/8250/8250_mid.c index 0f50a3f5e..20c5db2f4 100644 --- a/drivers/tty/serial/8250/8250_mid.c +++ b/drivers/tty/serial/8250/8250_mid.c @@ -96,13 +96,27 @@ static int tng_setup(struct mid8250 *mid, struct uart_port *p) static int dnv_handle_irq(struct uart_port *p) { struct mid8250 *mid = p->private_data; + struct uart_8250_port *up = up_to_u8250p(p); unsigned int fisr = serial_port_in(p, INTEL_MID_UART_DNV_FISR); + u32 status; int ret = IRQ_NONE; - - if (fisr & BIT(2)) - ret |= hsu_dma_irq(&mid->dma_chip, 1); - if (fisr & BIT(1)) - ret |= hsu_dma_irq(&mid->dma_chip, 0); + int err; + + if (fisr & BIT(2)) { + err = hsu_dma_get_status(&mid->dma_chip, 1, &status); + if (err > 0) { + serial8250_rx_dma_flush(up); + ret |= IRQ_HANDLED; + } else if (err == 0) + ret |= hsu_dma_do_irq(&mid->dma_chip, 1, status); + } + if (fisr & BIT(1)) { + err = hsu_dma_get_status(&mid->dma_chip, 0, &status); + if (err > 0) + ret |= IRQ_HANDLED; + else if (err == 0) + ret |= hsu_dma_do_irq(&mid->dma_chip, 0, status); + } if (fisr & BIT(0)) ret |= serial8250_handle_irq(p, serial_port_in(p, UART_IIR)); return ret; diff --git a/drivers/tty/serial/8250/8250_mtk.c b/drivers/tty/serial/8250/8250_mtk.c index 3489fbcb7..3611ec9bb 100644 --- a/drivers/tty/serial/8250/8250_mtk.c +++ b/drivers/tty/serial/8250/8250_mtk.c @@ -301,7 +301,7 @@ static struct platform_driver mtk8250_platform_driver = { }; module_platform_driver(mtk8250_platform_driver); -#if defined(CONFIG_SERIAL_8250_CONSOLE) && !defined(MODULE) +#ifdef CONFIG_SERIAL_8250_CONSOLE static int __init early_mtk8250_setup(struct earlycon_device *device, const char *options) { diff --git a/drivers/tty/serial/8250/8250_omap.c b/drivers/tty/serial/8250/8250_omap.c index 2c44c792d..61ad6c3b2 100644 --- a/drivers/tty/serial/8250/8250_omap.c +++ b/drivers/tty/serial/8250/8250_omap.c @@ -280,7 +280,7 @@ static void omap8250_restore_regs(struct uart_8250_port *up) serial_out(up, UART_EFR, UART_EFR_ECB); serial_out(up, UART_LCR, UART_LCR_CONF_MODE_A); - serial_out(up, UART_MCR, UART_MCR_TCRTLR); + serial8250_out_MCR(up, UART_MCR_TCRTLR); serial_out(up, UART_FCR, up->fcr); omap8250_update_scr(up, priv); @@ -296,7 +296,7 @@ static void omap8250_restore_regs(struct uart_8250_port *up) serial_out(up, UART_LCR, 0); /* drop TCR + TLR access, we setup XON/XOFF later */ - serial_out(up, UART_MCR, up->mcr); + serial8250_out_MCR(up, up->mcr); serial_out(up, UART_IER, up->ier); serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B); diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c index e67a46301..bc51b32b2 100644 --- a/drivers/tty/serial/8250/8250_pci.c +++ b/drivers/tty/serial/8250/8250_pci.c @@ -1136,11 +1136,11 @@ static int pci_quatech_rqopr(struct uart_8250_port *port) static void pci_quatech_wqopr(struct uart_8250_port *port, u8 qopr) { unsigned long base = port->port.iobase; - u8 LCR, val; + u8 LCR; LCR = inb(base + UART_LCR); outb(0xBF, base + UART_LCR); - val = inb(base + UART_SCR); + inb(base + UART_SCR); outb(qopr, base + UART_SCR); outb(LCR, base + UART_LCR); } @@ -1864,6 +1864,16 @@ pci_wch_ch353_setup(struct serial_private *priv, return pci_default_setup(priv, board, port, idx); } +static int +pci_wch_ch355_setup(struct serial_private *priv, + const struct pciserial_board *board, + struct uart_8250_port *port, int idx) +{ + port->port.flags |= UPF_FIXED_TYPE; + port->port.type = PORT_16550A; + return pci_default_setup(priv, board, port, idx); +} + static int pci_wch_ch38x_setup(struct serial_private *priv, const struct pciserial_board *board, @@ -1915,6 +1925,7 @@ pci_wch_ch38x_setup(struct serial_private *priv, #define PCI_DEVICE_ID_WCH_CH353_2S1PF 0x5046 #define PCI_DEVICE_ID_WCH_CH353_1S1P 0x5053 #define PCI_DEVICE_ID_WCH_CH353_2S1P 0x7053 +#define PCI_DEVICE_ID_WCH_CH355_4S 0x7173 #define PCI_VENDOR_ID_AGESTAR 0x5372 #define PCI_DEVICE_ID_AGESTAR_9375 0x6872 #define PCI_VENDOR_ID_ASIX 0x9710 @@ -2655,6 +2666,14 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = { .subdevice = PCI_ANY_ID, .setup = pci_wch_ch353_setup, }, + /* WCH CH355 4S card (16550 clone) */ + { + .vendor = PCI_VENDOR_ID_WCH, + .device = PCI_DEVICE_ID_WCH_CH355_4S, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .setup = pci_wch_ch355_setup, + }, /* WCH CH382 2S card (16850 clone) */ { .vendor = PCIE_VENDOR_ID_WCH, @@ -3849,6 +3868,7 @@ static const struct pci_device_id blacklist[] = { /* multi-io cards handled by parport_serial */ { PCI_DEVICE(0x4348, 0x7053), }, /* WCH CH353 2S1P */ { PCI_DEVICE(0x4348, 0x5053), }, /* WCH CH353 1S1P */ + { PCI_DEVICE(0x4348, 0x7173), }, /* WCH CH355 4S */ { PCI_DEVICE(0x1c00, 0x3250), }, /* WCH CH382 2S1P */ { PCI_DEVICE(0x1c00, 0x3470), }, /* WCH CH384 4S */ @@ -5706,6 +5726,10 @@ static struct pci_device_id serial_pci_tbl[] = { PCI_ANY_ID, PCI_ANY_ID, 0, 0, pbn_b0_bt_2_115200 }, + { PCI_VENDOR_ID_WCH, PCI_DEVICE_ID_WCH_CH355_4S, + PCI_ANY_ID, PCI_ANY_ID, + 0, 0, pbn_b0_bt_4_115200 }, + { PCIE_VENDOR_ID_WCH, PCIE_DEVICE_ID_WCH_CH382_2S, PCI_ANY_ID, PCI_ANY_ID, 0, 0, pbn_wch382_2 }, diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c index d4036038a..bdfa659b9 100644 --- a/drivers/tty/serial/8250/8250_port.c +++ b/drivers/tty/serial/8250/8250_port.c @@ -527,13 +527,13 @@ static void serial8250_clear_fifos(struct uart_8250_port *p) static inline void serial8250_em485_rts_after_send(struct uart_8250_port *p) { - unsigned char mcr = serial_in(p, UART_MCR); + unsigned char mcr = serial8250_in_MCR(p); if (p->port.rs485.flags & SER_RS485_RTS_AFTER_SEND) mcr |= UART_MCR_RTS; else mcr &= ~UART_MCR_RTS; - serial_out(p, UART_MCR, mcr); + serial8250_out_MCR(p, mcr); } static void serial8250_em485_handle_start_tx(unsigned long arg); @@ -785,10 +785,10 @@ static int size_fifo(struct uart_8250_port *up) old_lcr = serial_in(up, UART_LCR); serial_out(up, UART_LCR, 0); old_fcr = serial_in(up, UART_FCR); - old_mcr = serial_in(up, UART_MCR); + old_mcr = serial8250_in_MCR(up); serial_out(up, UART_FCR, UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT); - serial_out(up, UART_MCR, UART_MCR_LOOP); + serial8250_out_MCR(up, UART_MCR_LOOP); serial_out(up, UART_LCR, UART_LCR_CONF_MODE_A); old_dl = serial_dl_read(up); serial_dl_write(up, 0x0001); @@ -800,7 +800,7 @@ static int size_fifo(struct uart_8250_port *up) (count < 256); count++) serial_in(up, UART_RX); serial_out(up, UART_FCR, old_fcr); - serial_out(up, UART_MCR, old_mcr); + serial8250_out_MCR(up, old_mcr); serial_out(up, UART_LCR, UART_LCR_CONF_MODE_A); serial_dl_write(up, old_dl); serial_out(up, UART_LCR, old_lcr); @@ -1040,17 +1040,17 @@ static void autoconfig_16550a(struct uart_8250_port *up) * it's changed. If so, set baud_base in EXCR2 to 921600. -- dwmw2 */ serial_out(up, UART_LCR, 0); - status1 = serial_in(up, UART_MCR); + status1 = serial8250_in_MCR(up); serial_out(up, UART_LCR, 0xE0); status2 = serial_in(up, 0x02); /* EXCR1 */ if (!((status2 ^ status1) & UART_MCR_LOOP)) { serial_out(up, UART_LCR, 0); - serial_out(up, UART_MCR, status1 ^ UART_MCR_LOOP); + serial8250_out_MCR(up, status1 ^ UART_MCR_LOOP); serial_out(up, UART_LCR, 0xE0); status2 = serial_in(up, 0x02); /* EXCR1 */ serial_out(up, UART_LCR, 0); - serial_out(up, UART_MCR, status1); + serial8250_out_MCR(up, status1); if ((status2 ^ status1) & UART_MCR_LOOP) { unsigned short quot; @@ -1224,7 +1224,7 @@ static void autoconfig(struct uart_8250_port *up) } } - save_mcr = serial_in(up, UART_MCR); + save_mcr = serial8250_in_MCR(up); save_lcr = serial_in(up, UART_LCR); /* @@ -1237,9 +1237,9 @@ static void autoconfig(struct uart_8250_port *up) * that conflicts with COM 1-4 --- we hope! */ if (!(port->flags & UPF_SKIP_TEST)) { - serial_out(up, UART_MCR, UART_MCR_LOOP | 0x0A); + serial8250_out_MCR(up, UART_MCR_LOOP | 0x0A); status1 = serial_in(up, UART_MSR) & 0xF0; - serial_out(up, UART_MCR, save_mcr); + serial8250_out_MCR(up, save_mcr); if (status1 != 0x90) { spin_unlock_irqrestore(&port->lock, flags); DEBUG_AUTOCONF("LOOP test failed (%02x) ", @@ -1305,7 +1305,7 @@ static void autoconfig(struct uart_8250_port *up) if (port->type == PORT_RSA) serial_out(up, UART_RSA_FRR, 0); #endif - serial_out(up, UART_MCR, save_mcr); + serial8250_out_MCR(up, save_mcr); serial8250_clear_fifos(up); serial_in(up, UART_RX); if (up->capabilities & UART_CAP_UUE) @@ -1353,19 +1353,18 @@ static void autoconfig_irq(struct uart_8250_port *up) /* forget possible initially masked and pending IRQ */ probe_irq_off(probe_irq_on()); - save_mcr = serial_in(up, UART_MCR); + save_mcr = serial8250_in_MCR(up); save_ier = serial_in(up, UART_IER); - serial_out(up, UART_MCR, UART_MCR_OUT1 | UART_MCR_OUT2); + serial8250_out_MCR(up, UART_MCR_OUT1 | UART_MCR_OUT2); irqs = probe_irq_on(); - serial_out(up, UART_MCR, 0); + serial8250_out_MCR(up, 0); udelay(10); if (port->flags & UPF_FOURPORT) { - serial_out(up, UART_MCR, - UART_MCR_DTR | UART_MCR_RTS); + serial8250_out_MCR(up, UART_MCR_DTR | UART_MCR_RTS); } else { - serial_out(up, UART_MCR, - UART_MCR_DTR | UART_MCR_RTS | UART_MCR_OUT2); + serial8250_out_MCR(up, + UART_MCR_DTR | UART_MCR_RTS | UART_MCR_OUT2); } serial_out(up, UART_IER, 0x0f); /* enable all intrs */ serial_in(up, UART_LSR); @@ -1376,7 +1375,7 @@ static void autoconfig_irq(struct uart_8250_port *up) udelay(20); irq = probe_irq_off(irqs); - serial_out(up, UART_MCR, save_mcr); + serial8250_out_MCR(up, save_mcr); serial_out(up, UART_IER, save_ier); if (port->flags & UPF_FOURPORT) @@ -1549,14 +1548,14 @@ static inline void start_tx_rs485(struct uart_port *port) del_timer(&em485->stop_tx_timer); em485->active_timer = NULL; - mcr = serial_in(up, UART_MCR); + mcr = serial8250_in_MCR(up); if (!!(up->port.rs485.flags & SER_RS485_RTS_ON_SEND) != !!(mcr & UART_MCR_RTS)) { if (up->port.rs485.flags & SER_RS485_RTS_ON_SEND) mcr |= UART_MCR_RTS; else mcr &= ~UART_MCR_RTS; - serial_out(up, UART_MCR, mcr); + serial8250_out_MCR(up, mcr); if (up->port.rs485.delay_rts_before_send > 0) { em485->active_timer = &em485->start_tx_timer; @@ -1686,7 +1685,7 @@ static void serial8250_read_char(struct uart_8250_port *up, unsigned char lsr) lsr &= port->read_status_mask; if (lsr & UART_LSR_BI) { - DEBUG_INTR("handling break...."); + pr_debug("%s: handling break\n", __func__); flag = TTY_BREAK; } else if (lsr & UART_LSR_PE) flag = TTY_PARITY; @@ -1757,7 +1756,7 @@ void serial8250_tx_chars(struct uart_8250_port *up) if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) uart_write_wakeup(port); - DEBUG_INTR("THRE..."); + pr_debug("%s: THRE\n", __func__); /* * With RPM enabled, we have to wait until the FIFO is empty before the @@ -1823,7 +1822,7 @@ int serial8250_handle_irq(struct uart_port *port, unsigned int iir) status = serial_port_in(port, UART_LSR); - DEBUG_INTR("status = %x...", status); + pr_debug("%s: status = %x\n", __func__, status); if (status & (UART_LSR_DR | UART_LSR_BI)) { if (!up->dma || handle_rx_dma(up, iir)) @@ -1861,7 +1860,6 @@ static int serial8250_default_handle_irq(struct uart_port *port) */ static int exar_handle_irq(struct uart_port *port) { - unsigned char int0, int1, int2, int3; unsigned int iir = serial_port_in(port, UART_IIR); int ret; @@ -1869,10 +1867,10 @@ static int exar_handle_irq(struct uart_port *port) if ((port->type == PORT_XR17V35X) || (port->type == PORT_XR17D15X)) { - int0 = serial_port_in(port, 0x80); - int1 = serial_port_in(port, 0x81); - int2 = serial_port_in(port, 0x82); - int3 = serial_port_in(port, 0x83); + serial_port_in(port, 0x80); + serial_port_in(port, 0x81); + serial_port_in(port, 0x82); + serial_port_in(port, 0x83); } return ret; @@ -1944,7 +1942,7 @@ void serial8250_do_set_mctrl(struct uart_port *port, unsigned int mctrl) mcr = (mcr & up->mcr_mask) | up->mcr_force | up->mcr; - serial_port_out(port, UART_MCR, mcr); + serial8250_out_MCR(up, mcr); } EXPORT_SYMBOL_GPL(serial8250_do_set_mctrl); @@ -1994,8 +1992,6 @@ static void wait_for_xmitr(struct uart_8250_port *up, int bits) /* Wait up to 1s for flow control if necessary */ if (up->port.flags & UPF_CONS_FLOW) { - unsigned int tmout; - for (tmout = 1000000; tmout; tmout--) { unsigned int msr = serial_in(up, UART_MSR); up->msr_saved_flags |= msr & MSR_SAVE_FLAGS; @@ -3093,7 +3089,7 @@ static void serial8250_console_restore(struct uart_8250_port *up) serial8250_set_divisor(port, baud, quot, frac); serial_port_out(port, UART_LCR, up->lcr); - serial_port_out(port, UART_MCR, UART_MCR_DTR | UART_MCR_RTS); + serial8250_out_MCR(up, UART_MCR_DTR | UART_MCR_RTS); } /* diff --git a/drivers/tty/serial/8250/8250_uniphier.c b/drivers/tty/serial/8250/8250_uniphier.c index efd1f9c04..b8d9c8c9d 100644 --- a/drivers/tty/serial/8250/8250_uniphier.c +++ b/drivers/tty/serial/8250/8250_uniphier.c @@ -35,7 +35,7 @@ struct uniphier8250_priv { spinlock_t atomic_write_lock; }; -#if defined(CONFIG_SERIAL_8250_CONSOLE) && !defined(MODULE) +#ifdef CONFIG_SERIAL_8250_CONSOLE static int __init uniphier_early_console_setup(struct earlycon_device *device, const char *options) { diff --git a/drivers/tty/serial/8250/Kconfig b/drivers/tty/serial/8250/Kconfig index e46761d20..7c6f7afca 100644 --- a/drivers/tty/serial/8250/Kconfig +++ b/drivers/tty/serial/8250/Kconfig @@ -387,7 +387,8 @@ config SERIAL_8250_MT6577 config SERIAL_8250_UNIPHIER tristate "Support for UniPhier on-chip UART" - depends on SERIAL_8250 && ARCH_UNIPHIER + depends on SERIAL_8250 + depends on ARCH_UNIPHIER || COMPILE_TEST help If you have a UniPhier based board and want to use the on-chip serial ports, say Y to this option. If unsure, say N. @@ -395,7 +396,7 @@ config SERIAL_8250_UNIPHIER config SERIAL_8250_INGENIC tristate "Support for Ingenic SoC serial ports" depends on SERIAL_8250 - depends on (OF_FLATTREE && SERIAL_8250_CONSOLE) || !SERIAL_EARLYCON + depends on OF_FLATTREE depends on MIPS || COMPILE_TEST help If you have a system using an Ingenic SoC and wish to make use of -- cgit v1.2.3-54-g00ecf