diff options
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/serial/imx.c | 426 |
1 files changed, 213 insertions, 213 deletions
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c index 3a954194d2f6..552fd050f2bb 100644 --- a/drivers/tty/serial/imx.c +++ b/drivers/tty/serial/imx.c @@ -334,27 +334,27 @@ static u32 imx_uart_readl(struct imx_port *sport, u32 offset) } } -static inline unsigned uts_reg(struct imx_port *sport) +static inline unsigned imx_uart_uts_reg(struct imx_port *sport) { return sport->devdata->uts_reg; } -static inline int is_imx1_uart(struct imx_port *sport) +static inline int imx_uart_is_imx1(struct imx_port *sport) { return sport->devdata->devtype == IMX1_UART; } -static inline int is_imx21_uart(struct imx_port *sport) +static inline int imx_uart_is_imx21(struct imx_port *sport) { return sport->devdata->devtype == IMX21_UART; } -static inline int is_imx53_uart(struct imx_port *sport) +static inline int imx_uart_is_imx53(struct imx_port *sport) { return sport->devdata->devtype == IMX53_UART; } -static inline int is_imx6q_uart(struct imx_port *sport) +static inline int imx_uart_is_imx6q(struct imx_port *sport) { return sport->devdata->devtype == IMX6Q_UART; } @@ -362,7 +362,7 @@ static inline int is_imx6q_uart(struct imx_port *sport) * Save and restore functions for UCR1, UCR2 and UCR3 registers */ #if defined(CONFIG_SERIAL_IMX_CONSOLE) -static void imx_port_ucrs_save(struct imx_port *sport, +static void imx_uart_ucrs_save(struct imx_port *sport, struct imx_port_ucrs *ucr) { /* save control registers */ @@ -371,7 +371,7 @@ static void imx_port_ucrs_save(struct imx_port *sport, ucr->ucr3 = imx_uart_readl(sport, UCR3); } -static void imx_port_ucrs_restore(struct imx_port *sport, +static void imx_uart_ucrs_restore(struct imx_port *sport, struct imx_port_ucrs *ucr) { /* restore control registers */ @@ -381,7 +381,7 @@ static void imx_port_ucrs_restore(struct imx_port *sport, } #endif -static void imx_port_rts_active(struct imx_port *sport, u32 *ucr2) +static void imx_uart_rts_active(struct imx_port *sport, u32 *ucr2) { *ucr2 &= ~(UCR2_CTSC | UCR2_CTS); @@ -389,7 +389,7 @@ static void imx_port_rts_active(struct imx_port *sport, u32 *ucr2) mctrl_gpio_set(sport->gpios, sport->port.mctrl); } -static void imx_port_rts_inactive(struct imx_port *sport, u32 *ucr2) +static void imx_uart_rts_inactive(struct imx_port *sport, u32 *ucr2) { *ucr2 &= ~UCR2_CTSC; *ucr2 |= UCR2_CTS; @@ -398,13 +398,13 @@ static void imx_port_rts_inactive(struct imx_port *sport, u32 *ucr2) mctrl_gpio_set(sport->gpios, sport->port.mctrl); } -static void imx_port_rts_auto(struct imx_port *sport, u32 *ucr2) +static void imx_uart_rts_auto(struct imx_port *sport, u32 *ucr2) { *ucr2 |= UCR2_CTSC; } /* called with port.lock taken and irqs off */ -static void imx_start_rx(struct uart_port *port) +static void imx_uart_start_rx(struct uart_port *port) { struct imx_port *sport = (struct imx_port *)port; unsigned int ucr1, ucr2; @@ -427,7 +427,7 @@ static void imx_start_rx(struct uart_port *port) } /* called with port.lock taken and irqs off */ -static void imx_stop_tx(struct uart_port *port) +static void imx_uart_stop_tx(struct uart_port *port) { struct imx_port *sport = (struct imx_port *)port; u32 ucr1; @@ -447,12 +447,12 @@ static void imx_stop_tx(struct uart_port *port) imx_uart_readl(sport, USR2) & USR2_TXDC) { u32 ucr2 = imx_uart_readl(sport, UCR2), ucr4; if (port->rs485.flags & SER_RS485_RTS_AFTER_SEND) - imx_port_rts_active(sport, &ucr2); + imx_uart_rts_active(sport, &ucr2); else - imx_port_rts_inactive(sport, &ucr2); + imx_uart_rts_inactive(sport, &ucr2); imx_uart_writel(sport, ucr2, UCR2); - imx_start_rx(port); + imx_uart_start_rx(port); ucr4 = imx_uart_readl(sport, UCR4); ucr4 &= ~UCR4_TCEN; @@ -461,7 +461,7 @@ static void imx_stop_tx(struct uart_port *port) } /* called with port.lock taken and irqs off */ -static void imx_stop_rx(struct uart_port *port) +static void imx_uart_stop_rx(struct uart_port *port) { struct imx_port *sport = (struct imx_port *)port; u32 ucr1, ucr2; @@ -482,7 +482,7 @@ static void imx_stop_rx(struct uart_port *port) } /* called with port.lock taken and irqs off */ -static void imx_enable_ms(struct uart_port *port) +static void imx_uart_enable_ms(struct uart_port *port) { struct imx_port *sport = (struct imx_port *)port; @@ -491,10 +491,10 @@ static void imx_enable_ms(struct uart_port *port) mctrl_gpio_enable_ms(sport->gpios); } -static void imx_dma_tx(struct imx_port *sport); +static void imx_uart_dma_tx(struct imx_port *sport); /* called with port.lock taken and irqs off */ -static inline void imx_transmit_buffer(struct imx_port *sport) +static inline void imx_uart_transmit_buffer(struct imx_port *sport) { struct circ_buf *xmit = &sport->port.state->xmit; @@ -507,7 +507,7 @@ static inline void imx_transmit_buffer(struct imx_port *sport) } if (uart_circ_empty(xmit) || uart_tx_stopped(&sport->port)) { - imx_stop_tx(&sport->port); + imx_uart_stop_tx(&sport->port); return; } @@ -524,14 +524,14 @@ static inline void imx_transmit_buffer(struct imx_port *sport) imx_uart_writel(sport, ucr1, UCR1); } else { imx_uart_writel(sport, ucr1, UCR1); - imx_dma_tx(sport); + imx_uart_dma_tx(sport); } return; } while (!uart_circ_empty(xmit) && - !(imx_uart_readl(sport, uts_reg(sport)) & UTS_TXFULL)) { + !(imx_uart_readl(sport, imx_uart_uts_reg(sport)) & UTS_TXFULL)) { /* send xmit->buf[xmit->tail] * out the port here */ imx_uart_writel(sport, xmit->buf[xmit->tail], URTX0); @@ -543,10 +543,10 @@ static inline void imx_transmit_buffer(struct imx_port *sport) uart_write_wakeup(&sport->port); if (uart_circ_empty(xmit)) - imx_stop_tx(&sport->port); + imx_uart_stop_tx(&sport->port); } -static void dma_tx_callback(void *data) +static void imx_uart_dma_tx_callback(void *data) { struct imx_port *sport = data; struct scatterlist *sgl = &sport->tx_sgl[0]; @@ -574,7 +574,7 @@ static void dma_tx_callback(void *data) uart_write_wakeup(&sport->port); if (!uart_circ_empty(xmit) && !uart_tx_stopped(&sport->port)) - imx_dma_tx(sport); + imx_uart_dma_tx(sport); else if (sport->port.rs485.flags & SER_RS485_ENABLED) { u32 ucr4 = imx_uart_readl(sport, UCR4); ucr4 |= UCR4_TCEN; @@ -585,7 +585,7 @@ static void dma_tx_callback(void *data) } /* called with port.lock taken and irqs off */ -static void imx_dma_tx(struct imx_port *sport) +static void imx_uart_dma_tx(struct imx_port *sport) { struct circ_buf *xmit = &sport->port.state->xmit; struct scatterlist *sgl = sport->tx_sgl; @@ -628,7 +628,7 @@ static void imx_dma_tx(struct imx_port *sport) dev_err(dev, "We cannot prepare for the TX slave dma!\n"); return; } - desc->callback = dma_tx_callback; + desc->callback = imx_uart_dma_tx_callback; desc->callback_param = sport; dev_dbg(dev, "TX: prepare to send %lu bytes by DMA.\n", @@ -646,7 +646,7 @@ static void imx_dma_tx(struct imx_port *sport) } /* called with port.lock taken and irqs off */ -static void imx_start_tx(struct uart_port *port) +static void imx_uart_start_tx(struct uart_port *port) { struct imx_port *sport = (struct imx_port *)port; u32 ucr1; @@ -659,13 +659,13 @@ static void imx_start_tx(struct uart_port *port) ucr2 = imx_uart_readl(sport, UCR2); if (port->rs485.flags & SER_RS485_RTS_ON_SEND) - imx_port_rts_active(sport, &ucr2); + imx_uart_rts_active(sport, &ucr2); else - imx_port_rts_inactive(sport, &ucr2); + imx_uart_rts_inactive(sport, &ucr2); imx_uart_writel(sport, ucr2, UCR2); if (!(port->rs485.flags & SER_RS485_RX_DURING_TX)) - imx_stop_rx(port); + imx_uart_stop_rx(port); /* * Enable transmitter and shifter empty irq only if DMA is off. @@ -696,12 +696,12 @@ static void imx_start_tx(struct uart_port *port) if (!uart_circ_empty(&port->state->xmit) && !uart_tx_stopped(port)) - imx_dma_tx(sport); + imx_uart_dma_tx(sport); return; } } -static irqreturn_t imx_rtsint(int irq, void *dev_id) +static irqreturn_t imx_uart_rtsint(int irq, void *dev_id) { struct imx_port *sport = dev_id; u32 usr1; @@ -718,18 +718,18 @@ static irqreturn_t imx_rtsint(int irq, void *dev_id) return IRQ_HANDLED; } -static irqreturn_t imx_txint(int irq, void *dev_id) +static irqreturn_t imx_uart_txint(int irq, void *dev_id) { struct imx_port *sport = dev_id; unsigned long flags; spin_lock_irqsave(&sport->port.lock, flags); - imx_transmit_buffer(sport); + imx_uart_transmit_buffer(sport); spin_unlock_irqrestore(&sport->port.lock, flags); return IRQ_HANDLED; } -static irqreturn_t imx_rxint(int irq, void *dev_id) +static irqreturn_t imx_uart_rxint(int irq, void *dev_id) { struct imx_port *sport = dev_id; unsigned int rx, flg, ignored = 0; @@ -801,12 +801,12 @@ out: return IRQ_HANDLED; } -static void clear_rx_errors(struct imx_port *sport); +static void imx_uart_clear_rx_errors(struct imx_port *sport); /* * We have a modem side uart, so the meanings of RTS and CTS are inverted. */ -static unsigned int imx_get_hwmctrl(struct imx_port *sport) +static unsigned int imx_uart_get_hwmctrl(struct imx_port *sport) { unsigned int tmp = TIOCM_DSR; unsigned usr1 = imx_uart_readl(sport, USR1); @@ -829,11 +829,11 @@ static unsigned int imx_get_hwmctrl(struct imx_port *sport) /* * Handle any change of modem status signal since we were last called. */ -static void imx_mctrl_check(struct imx_port *sport) +static void imx_uart_mctrl_check(struct imx_port *sport) { unsigned int status, changed; - status = imx_get_hwmctrl(sport); + status = imx_uart_get_hwmctrl(sport); changed = status ^ sport->old_status; if (changed == 0) @@ -853,7 +853,7 @@ static void imx_mctrl_check(struct imx_port *sport) wake_up_interruptible(&sport->port.state->port.delta_msr_wait); } -static irqreturn_t imx_int(int irq, void *dev_id) +static irqreturn_t imx_uart_int(int irq, void *dev_id) { struct imx_port *sport = dev_id; unsigned int usr1, usr2, ucr1, ucr2, ucr3, ucr4; @@ -892,12 +892,12 @@ static irqreturn_t imx_int(int irq, void *dev_id) usr2 &= ~USR2_ORE; if (usr1 & (USR1_RRDY | USR1_AGTIM)) { - imx_rxint(irq, dev_id); + imx_uart_rxint(irq, dev_id); ret = IRQ_HANDLED; } if ((usr1 & USR1_TRDY) || (usr2 & USR2_TXDC)) { - imx_txint(irq, dev_id); + imx_uart_txint(irq, dev_id); ret = IRQ_HANDLED; } @@ -907,14 +907,14 @@ static irqreturn_t imx_int(int irq, void *dev_id) imx_uart_writel(sport, USR1_DTRD, USR1); spin_lock_irqsave(&sport->port.lock, flags); - imx_mctrl_check(sport); + imx_uart_mctrl_check(sport); spin_unlock_irqrestore(&sport->port.lock, flags); ret = IRQ_HANDLED; } if (usr1 & USR1_RTSD) { - imx_rtsint(irq, dev_id); + imx_uart_rtsint(irq, dev_id); ret = IRQ_HANDLED; } @@ -935,7 +935,7 @@ static irqreturn_t imx_int(int irq, void *dev_id) /* * Return TIOCSER_TEMT when transmitter is not busy. */ -static unsigned int imx_tx_empty(struct uart_port *port) +static unsigned int imx_uart_tx_empty(struct uart_port *port) { struct imx_port *sport = (struct imx_port *)port; unsigned int ret; @@ -950,10 +950,10 @@ static unsigned int imx_tx_empty(struct uart_port *port) } /* called with port.lock taken and irqs off */ -static unsigned int imx_get_mctrl(struct uart_port *port) +static unsigned int imx_uart_get_mctrl(struct uart_port *port) { struct imx_port *sport = (struct imx_port *)port; - unsigned int ret = imx_get_hwmctrl(sport); + unsigned int ret = imx_uart_get_hwmctrl(sport); mctrl_gpio_get(sport->gpios, &ret); @@ -961,7 +961,7 @@ static unsigned int imx_get_mctrl(struct uart_port *port) } /* called with port.lock taken and irqs off */ -static void imx_set_mctrl(struct uart_port *port, unsigned int mctrl) +static void imx_uart_set_mctrl(struct uart_port *port, unsigned int mctrl) { struct imx_port *sport = (struct imx_port *)port; u32 ucr3, uts; @@ -981,10 +981,10 @@ static void imx_set_mctrl(struct uart_port *port, unsigned int mctrl) ucr3 |= UCR3_DSR; imx_uart_writel(sport, ucr3, UCR3); - uts = imx_uart_readl(sport, uts_reg(sport)) & ~UTS_LOOP; + uts = imx_uart_readl(sport, imx_uart_uts_reg(sport)) & ~UTS_LOOP; if (mctrl & TIOCM_LOOP) uts |= UTS_LOOP; - imx_uart_writel(sport, uts, uts_reg(sport)); + imx_uart_writel(sport, uts, imx_uart_uts_reg(sport)); mctrl_gpio_set(sport->gpios, mctrl); } @@ -992,7 +992,7 @@ static void imx_set_mctrl(struct uart_port *port, unsigned int mctrl) /* * Interrupts always disabled. */ -static void imx_break_ctl(struct uart_port *port, int break_state) +static void imx_uart_break_ctl(struct uart_port *port, int break_state) { struct imx_port *sport = (struct imx_port *)port; unsigned long flags; @@ -1014,14 +1014,14 @@ static void imx_break_ctl(struct uart_port *port, int break_state) * This is our per-port timeout handler, for checking the * modem status signals. */ -static void imx_timeout(struct timer_list *t) +static void imx_uart_timeout(struct timer_list *t) { struct imx_port *sport = from_timer(sport, t, timer); unsigned long flags; if (sport->port.state) { spin_lock_irqsave(&sport->port.lock, flags); - imx_mctrl_check(sport); + imx_uart_mctrl_check(sport); spin_unlock_irqrestore(&sport->port.lock, flags); mod_timer(&sport->timer, jiffies + MCTRL_TIMEOUT); @@ -1038,7 +1038,7 @@ static void imx_timeout(struct timer_list *t) * Condition [2] is triggered when a character has been sitting in the FIFO * for at least 8 byte durations. */ -static void dma_rx_callback(void *data) +static void imx_uart_dma_rx_callback(void *data) { struct imx_port *sport = data; struct dma_chan *chan = sport->dma_chan_rx; @@ -1054,7 +1054,7 @@ static void dma_rx_callback(void *data) status = dmaengine_tx_status(chan, (dma_cookie_t)0, &state); if (status == DMA_ERROR) { - clear_rx_errors(sport); + imx_uart_clear_rx_errors(sport); return; } @@ -1114,7 +1114,7 @@ static void dma_rx_callback(void *data) /* RX DMA buffer periods */ #define RX_DMA_PERIODS 4 -static int start_rx_dma(struct imx_port *sport) +static int imx_uart_start_rx_dma(struct imx_port *sport) { struct scatterlist *sgl = &sport->rx_sgl; struct dma_chan *chan = sport->dma_chan_rx; @@ -1142,7 +1142,7 @@ static int start_rx_dma(struct imx_port *sport) dev_err(dev, "We cannot prepare for the RX slave dma!\n"); return -EINVAL; } - desc->callback = dma_rx_callback; + desc->callback = imx_uart_dma_rx_callback; desc->callback_param = sport; dev_dbg(dev, "RX: prepare for the DMA.\n"); @@ -1152,7 +1152,7 @@ static int start_rx_dma(struct imx_port *sport) return 0; } -static void clear_rx_errors(struct imx_port *sport) +static void imx_uart_clear_rx_errors(struct imx_port *sport) { struct tty_port *port = &sport->port.state->port; u32 usr1, usr2; @@ -1190,8 +1190,8 @@ static void clear_rx_errors(struct imx_port *sport) #define TXTL_DMA 8 /* DMA burst setting */ #define RXTL_DMA 9 /* DMA burst setting */ -static void imx_setup_ufcr(struct imx_port *sport, - unsigned char txwl, unsigned char rxwl) +static void imx_uart_setup_ufcr(struct imx_port *sport, + unsigned char txwl, unsigned char rxwl) { unsigned int val; @@ -1275,11 +1275,11 @@ err: return ret; } -static void imx_enable_dma(struct imx_port *sport) +static void imx_uart_enable_dma(struct imx_port *sport) { u32 ucr1; - imx_setup_ufcr(sport, TXTL_DMA, RXTL_DMA); + imx_uart_setup_ufcr(sport, TXTL_DMA, RXTL_DMA); /* set UCR1 */ ucr1 = imx_uart_readl(sport, UCR1); @@ -1289,7 +1289,7 @@ static void imx_enable_dma(struct imx_port *sport) sport->dma_is_enabled = 1; } -static void imx_disable_dma(struct imx_port *sport) +static void imx_uart_disable_dma(struct imx_port *sport) { u32 ucr1, ucr2; @@ -1303,7 +1303,7 @@ static void imx_disable_dma(struct imx_port *sport) ucr2 &= ~(UCR2_CTSC | UCR2_CTS | UCR2_ATEN); imx_uart_writel(sport, ucr2, UCR2); - imx_setup_ufcr(sport, TXTL_DEFAULT, RXTL_DEFAULT); + imx_uart_setup_ufcr(sport, TXTL_DEFAULT, RXTL_DEFAULT); sport->dma_is_enabled = 0; } @@ -1311,7 +1311,7 @@ static void imx_disable_dma(struct imx_port *sport) /* half the RX buffer size */ #define CTSTL 16 -static int imx_startup(struct uart_port *port) +static int imx_uart_startup(struct uart_port *port) { struct imx_port *sport = (struct imx_port *)port; int retval, i; @@ -1328,7 +1328,7 @@ static int imx_startup(struct uart_port *port) return retval; } - imx_setup_ufcr(sport, TXTL_DEFAULT, RXTL_DEFAULT); + imx_uart_setup_ufcr(sport, TXTL_DEFAULT, RXTL_DEFAULT); /* disable the DREN bit (Data Ready interrupt enable) before * requesting IRQs @@ -1382,11 +1382,11 @@ static int imx_startup(struct uart_port *port) * make sure the edge sensitive RTS-irq is disabled, * we're using RTSD instead. */ - if (!is_imx1_uart(sport)) + if (!imx_uart_is_imx1(sport)) ucr2 &= ~UCR2_RTSEN; imx_uart_writel(sport, ucr2, UCR2); - if (!is_imx1_uart(sport)) { + if (!imx_uart_is_imx1(sport)) { u32 ucr3; ucr3 = imx_uart_readl(sport, UCR3); @@ -1403,11 +1403,11 @@ static int imx_startup(struct uart_port *port) /* * Enable modem status interrupts */ - imx_enable_ms(&sport->port); + imx_uart_enable_ms(&sport->port); if (dma_is_inited) { - imx_enable_dma(sport); - start_rx_dma(sport); + imx_uart_enable_dma(sport); + imx_uart_start_rx_dma(sport); } else { ucr1 = imx_uart_readl(sport, UCR1); ucr1 |= UCR1_RRDYEN; @@ -1423,7 +1423,7 @@ static int imx_startup(struct uart_port *port) return 0; } -static void imx_shutdown(struct uart_port *port) +static void imx_uart_shutdown(struct uart_port *port) { struct imx_port *sport = (struct imx_port *)port; unsigned long flags; @@ -1436,9 +1436,9 @@ static void imx_shutdown(struct uart_port *port) dmaengine_terminate_sync(sport->dma_chan_rx); spin_lock_irqsave(&sport->port.lock, flags); - imx_stop_tx(port); - imx_stop_rx(port); - imx_disable_dma(sport); + imx_uart_stop_tx(port); + imx_uart_stop_rx(port); + imx_uart_disable_dma(sport); spin_unlock_irqrestore(&sport->port.lock, flags); imx_uart_dma_exit(sport); } @@ -1472,7 +1472,7 @@ static void imx_shutdown(struct uart_port *port) } /* called with port.lock taken and irqs off */ -static void imx_flush_buffer(struct uart_port *port) +static void imx_uart_flush_buffer(struct uart_port *port) { struct imx_port *sport = (struct imx_port *)port; struct scatterlist *sgl = &sport->tx_sgl[0]; @@ -1524,8 +1524,8 @@ static void imx_flush_buffer(struct uart_port *port) } static void -imx_set_termios(struct uart_port *port, struct ktermios *termios, - struct ktermios *old) +imx_uart_set_termios(struct uart_port *port, struct ktermios *termios, + struct ktermios *old) { struct imx_port *sport = (struct imx_port *)port; unsigned long flags; @@ -1563,11 +1563,11 @@ imx_set_termios(struct uart_port *port, struct ktermios *termios, */ if (port->rs485.flags & SER_RS485_RTS_AFTER_SEND) - imx_port_rts_active(sport, &ucr2); + imx_uart_rts_active(sport, &ucr2); else - imx_port_rts_inactive(sport, &ucr2); + imx_uart_rts_inactive(sport, &ucr2); } else { - imx_port_rts_auto(sport, &ucr2); + imx_uart_rts_auto(sport, &ucr2); } } else { termios->c_cflag &= ~CRTSCTS; @@ -1575,9 +1575,9 @@ imx_set_termios(struct uart_port *port, struct ktermios *termios, } else if (port->rs485.flags & SER_RS485_ENABLED) { /* disable transmitter */ if (port->rs485.flags & SER_RS485_RTS_AFTER_SEND) - imx_port_rts_active(sport, &ucr2); + imx_uart_rts_active(sport, &ucr2); else - imx_port_rts_inactive(sport, &ucr2); + imx_uart_rts_inactive(sport, &ucr2); } @@ -1676,7 +1676,7 @@ imx_set_termios(struct uart_port *port, struct ktermios *termios, imx_uart_writel(sport, num, UBIR); imx_uart_writel(sport, denom, UBMR); - if (!is_imx1_uart(sport)) + if (!imx_uart_is_imx1(sport)) imx_uart_writel(sport, sport->port.uartclk / div / 1000, IMX21_ONEMS); @@ -1686,12 +1686,12 @@ imx_set_termios(struct uart_port *port, struct ktermios *termios, imx_uart_writel(sport, ucr2 | old_ucr2, UCR2); if (UART_ENABLE_MS(&sport->port, termios->c_cflag)) - imx_enable_ms(&sport->port); + imx_uart_enable_ms(&sport->port); spin_unlock_irqrestore(&sport->port.lock, flags); } -static const char *imx_type(struct uart_port *port) +static const char *imx_uart_type(struct uart_port *port) { struct imx_port *sport = (struct imx_port *)port; @@ -1701,7 +1701,7 @@ static const char *imx_type(struct uart_port *port) /* * Configure/autoconfigure the port. */ -static void imx_config_port(struct uart_port *port, int flags) +static void imx_uart_config_port(struct uart_port *port, int flags) { struct imx_port *sport = (struct imx_port *)port; @@ -1715,7 +1715,7 @@ static void imx_config_port(struct uart_port *port, int flags) * even then only between PORT_IMX and PORT_UNKNOWN */ static int -imx_verify_port(struct uart_port *port, struct serial_struct *ser) +imx_uart_verify_port(struct uart_port *port, struct serial_struct *ser) { struct imx_port *sport = (struct imx_port *)port; int ret = 0; @@ -1739,7 +1739,7 @@ imx_verify_port(struct uart_port *port, struct serial_struct *ser) #if defined(CONFIG_CONSOLE_POLL) -static int imx_poll_init(struct uart_port *port) +static int imx_uart_poll_init(struct uart_port *port) { struct imx_port *sport = (struct imx_port *)port; unsigned long flags; @@ -1753,7 +1753,7 @@ static int imx_poll_init(struct uart_port *port) if (retval) clk_disable_unprepare(sport->clk_ipg); - imx_setup_ufcr(sport, TXTL_DEFAULT, RXTL_DEFAULT); + imx_uart_setup_ufcr(sport, TXTL_DEFAULT, RXTL_DEFAULT); spin_lock_irqsave(&sport->port.lock, flags); @@ -1767,7 +1767,7 @@ static int imx_poll_init(struct uart_port *port) ucr1 = imx_uart_readl(sport, UCR1); ucr2 = imx_uart_readl(sport, UCR2); - if (is_imx1_uart(sport)) + if (imx_uart_is_imx1(sport)) ucr1 |= IMX1_UCR1_UARTCLKEN; ucr1 |= UCR1_UARTEN; @@ -1788,7 +1788,7 @@ static int imx_poll_init(struct uart_port *port) return 0; } -static int imx_poll_get_char(struct uart_port *port) +static int imx_uart_poll_get_char(struct uart_port *port) { struct imx_port *sport = (struct imx_port *)port; if (!(imx_uart_readl(sport, USR2) & USR2_RDR)) @@ -1797,7 +1797,7 @@ static int imx_poll_get_char(struct uart_port *port) return imx_uart_readl(sport, URXD0) & URXD_RX_DATA; } -static void imx_poll_put_char(struct uart_port *port, unsigned char c) +static void imx_uart_poll_put_char(struct uart_port *port, unsigned char c) { struct imx_port *sport = (struct imx_port *)port; unsigned int status; @@ -1818,8 +1818,8 @@ static void imx_poll_put_char(struct uart_port *port, unsigned char c) #endif /* called with port.lock taken and irqs off or from .probe without locking */ -static int imx_rs485_config(struct uart_port *port, - struct serial_rs485 *rs485conf) +static int imx_uart_rs485_config(struct uart_port *port, + struct serial_rs485 *rs485conf) { struct imx_port *sport = (struct imx_port *)port; u32 ucr2; @@ -1836,53 +1836,53 @@ static int imx_rs485_config(struct uart_port *port, /* disable transmitter */ ucr2 = imx_uart_readl(sport, UCR2); if (rs485conf->flags & SER_RS485_RTS_AFTER_SEND) - imx_port_rts_active(sport, &ucr2); + imx_uart_rts_active(sport, &ucr2); else - imx_port_rts_inactive(sport, &ucr2); + imx_uart_rts_inactive(sport, &ucr2); imx_uart_writel(sport, ucr2, UCR2); } /* Make sure Rx is enabled in case Tx is active with Rx disabled */ if (!(rs485conf->flags & SER_RS485_ENABLED) || rs485conf->flags & SER_RS485_RX_DURING_TX) - imx_start_rx(port); + imx_uart_start_rx(port); port->rs485 = *rs485conf; return 0; } -static const struct uart_ops imx_pops = { - .tx_empty = imx_tx_empty, - .set_mctrl = imx_set_mctrl, - .get_mctrl = imx_get_mctrl, - .stop_tx = imx_stop_tx, - .start_tx = imx_start_tx, - .stop_rx = imx_stop_rx, - .enable_ms = imx_enable_ms, - .break_ctl = imx_break_ctl, - .startup = imx_startup, - .shutdown = imx_shutdown, - .flush_buffer = imx_flush_buffer, - .set_termios = imx_set_termios, - .type = imx_type, - .config_port = imx_config_port, - .verify_port = imx_verify_port, +static const struct uart_ops imx_uart_pops = { + .tx_empty = imx_uart_tx_empty, + .set_mctrl = imx_uart_set_mctrl, + .get_mctrl = imx_uart_get_mctrl, + .stop_tx = imx_uart_stop_tx, + .start_tx = imx_uart_start_tx, + .stop_rx = imx_uart_stop_rx, + .enable_ms = imx_uart_enable_ms, + .break_ctl = imx_uart_break_ctl, + .startup = imx_uart_startup, + .shutdown = imx_uart_shutdown, + .flush_buffer = imx_uart_flush_buffer, + .set_termios = imx_uart_set_termios, + .type = imx_uart_type, + .config_port = imx_uart_config_port, + .verify_port = imx_uart_verify_port, #if defined(CONFIG_CONSOLE_POLL) - .poll_init = imx_poll_init, - .poll_get_char = imx_poll_get_char, - .poll_put_char = imx_poll_put_char, + .poll_init = imx_uart_poll_init, + .poll_get_char = imx_uart_poll_get_char, + .poll_put_char = imx_uart_poll_put_char, #endif }; -static struct imx_port *imx_ports[UART_NR]; +static struct imx_port *imx_uart_ports[UART_NR]; #ifdef CONFIG_SERIAL_IMX_CONSOLE -static void imx_console_putchar(struct uart_port *port, int ch) +static void imx_uart_console_putchar(struct uart_port *port, int ch) { struct imx_port *sport = (struct imx_port *)port; - while (imx_uart_readl(sport, uts_reg(sport)) & UTS_TXFULL) + while (imx_uart_readl(sport, imx_uart_uts_reg(sport)) & UTS_TXFULL) barrier(); imx_uart_writel(sport, ch, URTX0); @@ -1892,9 +1892,9 @@ static void imx_console_putchar(struct uart_port *port, int ch) * Interrupts are disabled on entering */ static void -imx_console_write(struct console *co, const char *s, unsigned int count) +imx_uart_console_write(struct console *co, const char *s, unsigned int count) { - struct imx_port *sport = imx_ports[co->index]; + struct imx_port *sport = imx_uart_ports[co->index]; struct imx_port_ucrs old_ucr; unsigned int ucr1; unsigned long flags = 0; @@ -1920,10 +1920,10 @@ imx_console_write(struct console *co, const char *s, unsigned int count) /* * First, save UCR1/2/3 and then disable interrupts */ - imx_port_ucrs_save(sport, &old_ucr); + imx_uart_ucrs_save(sport, &old_ucr); ucr1 = old_ucr.ucr1; - if (is_imx1_uart(sport)) + if (imx_uart_is_imx1(sport)) ucr1 |= IMX1_UCR1_UARTCLKEN; ucr1 |= UCR1_UARTEN; ucr1 &= ~(UCR1_TXMPTYEN | UCR1_RRDYEN | UCR1_RTSDEN); @@ -1932,7 +1932,7 @@ imx_console_write(struct console *co, const char *s, unsigned int count) imx_uart_writel(sport, old_ucr.ucr2 | UCR2_TXEN, UCR2); - uart_console_write(&sport->port, s, count, imx_console_putchar); + uart_console_write(&sport->port, s, count, imx_uart_console_putchar); /* * Finally, wait for transmitter to become empty @@ -1940,7 +1940,7 @@ imx_console_write(struct console *co, const char *s, unsigned int count) */ while (!(imx_uart_readl(sport, USR2) & USR2_TXDC)); - imx_port_ucrs_restore(sport, &old_ucr); + imx_uart_ucrs_restore(sport, &old_ucr); if (locked) spin_unlock_irqrestore(&sport->port.lock, flags); @@ -1954,8 +1954,8 @@ imx_console_write(struct console *co, const char *s, unsigned int count) * try to determine the current setup. */ static void __init -imx_console_get_options(struct imx_port *sport, int *baud, - int *parity, int *bits) +imx_uart_console_get_options(struct imx_port *sport, int *baud, + int *parity, int *bits) { if (imx_uart_readl(sport, UCR1) & UCR1_UARTEN) { @@ -2013,7 +2013,7 @@ imx_console_get_options(struct imx_port *sport, int *baud, } static int __init -imx_console_setup(struct console *co, char *options) +imx_uart_console_setup(struct console *co, char *options) { struct imx_port *sport; int baud = 9600; @@ -2027,9 +2027,9 @@ imx_console_setup(struct console *co, char *options) * if so, search for the first available port that does have * console support. */ - if (co->index == -1 || co->index >= ARRAY_SIZE(imx_ports)) + if (co->index == -1 || co->index >= ARRAY_SIZE(imx_uart_ports)) co->index = 0; - sport = imx_ports[co->index]; + sport = imx_uart_ports[co->index]; if (sport == NULL) return -ENODEV; @@ -2041,9 +2041,9 @@ imx_console_setup(struct console *co, char *options) if (options) uart_parse_options(options, &baud, &parity, &bits, &flow); else - imx_console_get_options(sport, &baud, &parity, &bits); + imx_uart_console_get_options(sport, &baud, &parity, &bits); - imx_setup_ufcr(sport, TXTL_DEFAULT, RXTL_DEFAULT); + imx_uart_setup_ufcr(sport, TXTL_DEFAULT, RXTL_DEFAULT); retval = uart_set_options(&sport->port, co, baud, parity, bits, flow); @@ -2061,21 +2061,21 @@ error_console: return retval; } -static struct uart_driver imx_reg; -static struct console imx_console = { +static struct uart_driver imx_uart_uart_driver; +static struct console imx_uart_console = { .name = DEV_NAME, - .write = imx_console_write, + .write = imx_uart_console_write, .device = uart_console_device, - .setup = imx_console_setup, + .setup = imx_uart_console_setup, .flags = CON_PRINTBUFFER, .index = -1, - .data = &imx_reg, + .data = &imx_uart_uart_driver, }; -#define IMX_CONSOLE &imx_console +#define IMX_CONSOLE &imx_uart_console #ifdef CONFIG_OF -static void imx_console_early_putchar(struct uart_port *port, int ch) +static void imx_uart_console_early_putchar(struct uart_port *port, int ch) { struct imx_port *sport = (struct imx_port *)port; @@ -2085,12 +2085,12 @@ static void imx_console_early_putchar(struct uart_port *port, int ch) imx_uart_writel(sport, ch, URTX0); } -static void imx_console_early_write(struct console *con, const char *s, - unsigned count) +static void imx_uart_console_early_write(struct console *con, const char *s, + unsigned count) { struct earlycon_device *dev = con->data; - uart_console_write(&dev->port, s, count, imx_console_early_putchar); + uart_console_write(&dev->port, s, count, imx_uart_console_early_putchar); } static int __init @@ -2099,7 +2099,7 @@ imx_console_early_setup(struct earlycon_device *dev, const char *opt) if (!dev->port.membase) return -ENODEV; - dev->con->write = imx_console_early_write; + dev->con->write = imx_uart_console_early_write; return 0; } @@ -2111,13 +2111,13 @@ OF_EARLYCON_DECLARE(ec_imx21, "fsl,imx21-uart", imx_console_early_setup); #define IMX_CONSOLE NULL #endif -static struct uart_driver imx_reg = { +static struct uart_driver imx_uart_uart_driver = { .owner = THIS_MODULE, .driver_name = DRIVER_NAME, .dev_name = DEV_NAME, .major = SERIAL_IMX_MAJOR, .minor = MINOR_START, - .nr = ARRAY_SIZE(imx_ports), + .nr = ARRAY_SIZE(imx_uart_ports), .cons = IMX_CONSOLE, }; @@ -2126,8 +2126,8 @@ static struct uart_driver imx_reg = { * This function returns 1 iff pdev isn't a device instatiated by dt, 0 iff it * could successfully get all information from dt or a negative errno. */ -static int serial_imx_probe_dt(struct imx_port *sport, - struct platform_device *pdev) +static int imx_uart_probe_dt(struct imx_port *sport, + struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; int ret; @@ -2157,15 +2157,15 @@ static int serial_imx_probe_dt(struct imx_port *sport, return 0; } #else -static inline int serial_imx_probe_dt(struct imx_port *sport, - struct platform_device *pdev) +static inline int imx_uart_probe_dt(struct imx_port *sport, + struct platform_device *pdev) { return 1; } #endif -static void serial_imx_probe_pdata(struct imx_port *sport, - struct platform_device *pdev) +static void imx_uart_probe_pdata(struct imx_port *sport, + struct platform_device *pdev) { struct imxuart_platform_data *pdata = dev_get_platdata(&pdev->dev); @@ -2179,7 +2179,7 @@ static void serial_imx_probe_pdata(struct imx_port *sport, sport->have_rtscts = 1; } -static int serial_imx_probe(struct platform_device *pdev) +static int imx_uart_probe(struct platform_device *pdev) { struct imx_port *sport; void __iomem *base; @@ -2192,13 +2192,13 @@ static int serial_imx_probe(struct platform_device *pdev) if (!sport) return -ENOMEM; - ret = serial_imx_probe_dt(sport, pdev); + ret = imx_uart_probe_dt(sport, pdev); if (ret > 0) - serial_imx_probe_pdata(sport, pdev); + imx_uart_probe_pdata(sport, pdev); else if (ret < 0) return ret; - if (sport->port.line >= ARRAY_SIZE(imx_ports)) { + if (sport->port.line >= ARRAY_SIZE(imx_uart_ports)) { dev_err(&pdev->dev, "serial%d out of range\n", sport->port.line); return -EINVAL; @@ -2220,10 +2220,10 @@ static int serial_imx_probe(struct platform_device *pdev) sport->port.iotype = UPIO_MEM; sport->port.irq = rxirq; sport->port.fifosize = 32; - sport->port.ops = &imx_pops; - sport->port.rs485_config = imx_rs485_config; + sport->port.ops = &imx_uart_pops; + sport->port.rs485_config = imx_uart_rs485_config; sport->port.flags = UPF_BOOT_AUTOCONF; - timer_setup(&sport->timer, imx_timeout, 0); + timer_setup(&sport->timer, imx_uart_timeout, 0); sport->gpios = mctrl_gpio_init(&sport->port, 0); if (IS_ERR(sport->gpios)) @@ -2265,7 +2265,7 @@ static int serial_imx_probe(struct platform_device *pdev) (!sport->have_rtscts || !sport->have_rtsgpio)) dev_err(&pdev->dev, "no RTS control, disabling rs485\n"); - imx_rs485_config(&sport->port, &sport->port.rs485); + imx_uart_rs485_config(&sport->port, &sport->port.rs485); /* Disable interrupts before requesting them */ ucr1 = imx_uart_readl(sport, UCR1); @@ -2273,7 +2273,7 @@ static int serial_imx_probe(struct platform_device *pdev) UCR1_TXMPTYEN | UCR1_RTSDEN); imx_uart_writel(sport, ucr1, UCR1); - if (!is_imx1_uart(sport) && sport->dte_mode) { + if (!imx_uart_is_imx1(sport) && sport->dte_mode) { /* * The DCEDTE bit changes the direction of DSR, DCD, DTR and RI * and influences if UCR3_RI and UCR3_DCD changes the level of RI @@ -2299,7 +2299,7 @@ static int serial_imx_probe(struct platform_device *pdev) if (ufcr & UFCR_DCEDTE) imx_uart_writel(sport, ufcr & ~UFCR_DCEDTE, UFCR); - if (!is_imx1_uart(sport)) + if (!imx_uart_is_imx1(sport)) ucr3 |= IMX21_UCR3_RXDMUXSEL | UCR3_ADNIMP; imx_uart_writel(sport, ucr3, UCR3); } @@ -2311,7 +2311,7 @@ static int serial_imx_probe(struct platform_device *pdev) * chips only have one interrupt. */ if (txirq > 0) { - ret = devm_request_irq(&pdev->dev, rxirq, imx_rxint, 0, + ret = devm_request_irq(&pdev->dev, rxirq, imx_uart_rxint, 0, dev_name(&pdev->dev), sport); if (ret) { dev_err(&pdev->dev, "failed to request rx irq: %d\n", @@ -2319,7 +2319,7 @@ static int serial_imx_probe(struct platform_device *pdev) return ret; } - ret = devm_request_irq(&pdev->dev, txirq, imx_txint, 0, + ret = devm_request_irq(&pdev->dev, txirq, imx_uart_txint, 0, dev_name(&pdev->dev), sport); if (ret) { dev_err(&pdev->dev, "failed to request tx irq: %d\n", @@ -2327,7 +2327,7 @@ static int serial_imx_probe(struct platform_device *pdev) return ret; } } else { - ret = devm_request_irq(&pdev->dev, rxirq, imx_int, 0, + ret = devm_request_irq(&pdev->dev, rxirq, imx_uart_int, 0, dev_name(&pdev->dev), sport); if (ret) { dev_err(&pdev->dev, "failed to request irq: %d\n", ret); @@ -2335,21 +2335,21 @@ static int serial_imx_probe(struct platform_device *pdev) } } - imx_ports[sport->port.line] = sport; + imx_uart_ports[sport->port.line] = sport; platform_set_drvdata(pdev, sport); - return uart_add_one_port(&imx_reg, &sport->port); + return uart_add_one_port(&imx_uart_uart_driver, &sport->port); } -static int serial_imx_remove(struct platform_device *pdev) +static int imx_uart_remove(struct platform_device *pdev) { struct imx_port *sport = platform_get_drvdata(pdev); - return uart_remove_one_port(&imx_reg, &sport->port); + return uart_remove_one_port(&imx_uart_uart_driver, &sport->port); } -static void serial_imx_restore_context(struct imx_port *sport) +static void imx_uart_restore_context(struct imx_port *sport) { if (!sport->context_saved) return; @@ -2367,7 +2367,7 @@ static void serial_imx_restore_context(struct imx_port *sport) sport->context_saved = false; } -static void serial_imx_save_context(struct imx_port *sport) +static void imx_uart_save_context(struct imx_port *sport) { /* Save necessary regs */ sport->saved_reg[0] = imx_uart_readl(sport, UCR1); @@ -2383,7 +2383,7 @@ static void serial_imx_save_context(struct imx_port *sport) sport->context_saved = true; } -static void serial_imx_enable_wakeup(struct imx_port *sport, bool on) +static void imx_uart_enable_wakeup(struct imx_port *sport, bool on) { u32 ucr3; @@ -2406,19 +2406,19 @@ static void serial_imx_enable_wakeup(struct imx_port *sport, bool on) } } -static int imx_serial_port_suspend_noirq(struct device *dev) +static int imx_uart_suspend_noirq(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); struct imx_port *sport = platform_get_drvdata(pdev); - serial_imx_save_context(sport); + imx_uart_save_context(sport); clk_disable(sport->clk_ipg); return 0; } -static int imx_serial_port_resume_noirq(struct device *dev) +static int imx_uart_resume_noirq(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); struct imx_port *sport = platform_get_drvdata(pdev); @@ -2428,18 +2428,18 @@ static int imx_serial_port_resume_noirq(struct device *dev) if (ret) return ret; - serial_imx_restore_context(sport); + imx_uart_restore_context(sport); return 0; } -static int imx_serial_port_suspend(struct device *dev) +static int imx_uart_suspend(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); struct imx_port *sport = platform_get_drvdata(pdev); int ret; - uart_suspend_port(&imx_reg, &sport->port); + uart_suspend_port(&imx_uart_uart_driver, &sport->port); disable_irq(sport->port.irq); ret = clk_prepare_enable(sport->clk_ipg); @@ -2447,20 +2447,20 @@ static int imx_serial_port_suspend(struct device *dev) return ret; /* enable wakeup from i.MX UART */ - serial_imx_enable_wakeup(sport, true); + imx_uart_enable_wakeup(sport, true); return 0; } -static int imx_serial_port_resume(struct device *dev) +static int imx_uart_resume(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); struct imx_port *sport = platform_get_drvdata(pdev); /* disable wakeup from i.MX UART */ - serial_imx_enable_wakeup(sport, false); + imx_uart_enable_wakeup(sport, false); - uart_resume_port(&imx_reg, &sport->port); + uart_resume_port(&imx_uart_uart_driver, &sport->port); enable_irq(sport->port.irq); clk_disable_unprepare(sport->clk_ipg); @@ -2468,74 +2468,74 @@ static int imx_serial_port_resume(struct device *dev) return 0; } -static int imx_serial_port_freeze(struct device *dev) +static int imx_uart_freeze(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); struct imx_port *sport = platform_get_drvdata(pdev); - uart_suspend_port(&imx_reg, &sport->port); + uart_suspend_port(&imx_uart_uart_driver, &sport->port); return clk_prepare_enable(sport->clk_ipg); } -static int imx_serial_port_thaw(struct device *dev) +static int imx_uart_thaw(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); struct imx_port *sport = platform_get_drvdata(pdev); - uart_resume_port(&imx_reg, &sport->port); + uart_resume_port(&imx_uart_uart_driver, &sport->port); clk_disable_unprepare(sport->clk_ipg); return 0; } -static const struct dev_pm_ops imx_serial_port_pm_ops = { - .suspend_noirq = imx_serial_port_suspend_noirq, - .resume_noirq = imx_serial_port_resume_noirq, - .freeze_noirq = imx_serial_port_suspend_noirq, - .restore_noirq = imx_serial_port_resume_noirq, - .suspend = imx_serial_port_suspend, - .resume = imx_serial_port_resume, - .freeze = imx_serial_port_freeze, - .thaw = imx_serial_port_thaw, - .restore = imx_serial_port_thaw, +static const struct dev_pm_ops imx_uart_pm_ops = { + .suspend_noirq = imx_uart_suspend_noirq, + .resume_noirq = imx_uart_resume_noirq, + .freeze_noirq = imx_uart_suspend_noirq, + .restore_noirq = imx_uart_resume_noirq, + .suspend = imx_uart_suspend, + .resume = imx_uart_resume, + .freeze = imx_uart_freeze, + .thaw = imx_uart_thaw, + .restore = imx_uart_thaw, }; -static struct platform_driver serial_imx_driver = { - .probe = serial_imx_probe, - .remove = serial_imx_remove, +static struct platform_driver imx_uart_platform_driver = { + .probe = imx_uart_probe, + .remove = imx_uart_remove, - .id_table = imx_uart_devtype, - .driver = { - .name = "imx-uart", + .id_table = imx_uart_devtype, + .driver = { + .name = "imx-uart", .of_match_table = imx_uart_dt_ids, - .pm = &imx_serial_port_pm_ops, + .pm = &imx_uart_pm_ops, }, }; -static int __init imx_serial_init(void) +static int __init imx_uart_init(void) { - int ret = uart_register_driver(&imx_reg); + int ret = uart_register_driver(&imx_uart_uart_driver); if (ret) return ret; - ret = platform_driver_register(&serial_imx_driver); + ret = platform_driver_register(&imx_uart_platform_driver); if (ret != 0) - uart_unregister_driver(&imx_reg); + uart_unregister_driver(&imx_uart_uart_driver); return ret; } -static void __exit imx_serial_exit(void) +static void __exit imx_uart_exit(void) { - platform_driver_unregister(&serial_imx_driver); - uart_unregister_driver(&imx_reg); + platform_driver_unregister(&imx_uart_platform_driver); + uart_unregister_driver(&imx_uart_uart_driver); } -module_init(imx_serial_init); -module_exit(imx_serial_exit); +module_init(imx_uart_init); +module_exit(imx_uart_exit); MODULE_AUTHOR("Sascha Hauer"); MODULE_DESCRIPTION("IMX generic serial port driver"); |