diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/tty/serial/fsl_lpuart.c | 47 |
1 files changed, 27 insertions, 20 deletions
diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c index 15df1ba78095..c17a0eab5259 100644 --- a/drivers/tty/serial/fsl_lpuart.c +++ b/drivers/tty/serial/fsl_lpuart.c @@ -236,7 +236,6 @@ struct lpuart_port { struct clk *clk; unsigned int txfifo_size; unsigned int rxfifo_size; - bool lpuart32; bool lpuart_dma_tx_use; bool lpuart_dma_rx_use; @@ -258,13 +257,21 @@ struct lpuart_port { wait_queue_head_t dma_wait; }; +struct lpuart_soc_data { + char iotype; +}; + +static const struct lpuart_soc_data vf_data = { + .iotype = UPIO_MEM, +}; + +static const struct lpuart_soc_data ls_data = { + .iotype = UPIO_MEM32BE, +}; + static const struct of_device_id lpuart_dt_ids[] = { - { - .compatible = "fsl,vf610-lpuart", - }, - { - .compatible = "fsl,ls1021a-lpuart", - }, + { .compatible = "fsl,vf610-lpuart", .data = &vf_data, }, + { .compatible = "fsl,ls1021a-lpuart", .data = &ls_data, }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, lpuart_dt_ids); @@ -593,7 +600,7 @@ static irqreturn_t lpuart_txint(int irq, void *dev_id) spin_lock_irqsave(&sport->port.lock, flags); if (sport->port.x_char) { - if (sport->lpuart32) + if (sport->port.iotype & UPIO_MEM32BE) lpuart32_write(sport->port.x_char, sport->port.membase + UARTDATA); else writeb(sport->port.x_char, sport->port.membase + UARTDR); @@ -601,14 +608,14 @@ static irqreturn_t lpuart_txint(int irq, void *dev_id) } if (uart_circ_empty(xmit) || uart_tx_stopped(&sport->port)) { - if (sport->lpuart32) + if (sport->port.iotype & UPIO_MEM32BE) lpuart32_stop_tx(&sport->port); else lpuart_stop_tx(&sport->port); goto out; } - if (sport->lpuart32) + if (sport->port.iotype & UPIO_MEM32BE) lpuart32_transmit_buffer(sport); else lpuart_transmit_buffer(sport); @@ -1881,12 +1888,12 @@ static int __init lpuart_console_setup(struct console *co, char *options) if (options) uart_parse_options(options, &baud, &parity, &bits, &flow); else - if (sport->lpuart32) + if (sport->port.iotype & UPIO_MEM32BE) lpuart32_console_get_options(sport, &baud, &parity, &bits); else lpuart_console_get_options(sport, &baud, &parity, &bits); - if (sport->lpuart32) + if (sport->port.iotype & UPIO_MEM32BE) lpuart32_setup_watermark(sport); else lpuart_setup_watermark(sport); @@ -1971,6 +1978,9 @@ static struct uart_driver lpuart_reg = { static int lpuart_probe(struct platform_device *pdev) { + const struct of_device_id *of_id = of_match_device(lpuart_dt_ids, + &pdev->dev); + const struct lpuart_soc_data *sdata = of_id->data; struct device_node *np = pdev->dev.of_node; struct lpuart_port *sport; struct resource *res; @@ -1988,8 +1998,6 @@ static int lpuart_probe(struct platform_device *pdev) return ret; } sport->port.line = ret; - sport->lpuart32 = of_device_is_compatible(np, "fsl,ls1021a-lpuart"); - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); sport->port.membase = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(sport->port.membase)) @@ -1998,15 +2006,14 @@ static int lpuart_probe(struct platform_device *pdev) sport->port.mapbase = res->start; sport->port.dev = &pdev->dev; sport->port.type = PORT_LPUART; - sport->port.iotype = UPIO_MEM; ret = platform_get_irq(pdev, 0); if (ret < 0) { dev_err(&pdev->dev, "cannot obtain irq\n"); return ret; } sport->port.irq = ret; - - if (sport->lpuart32) + sport->port.iotype = sdata->iotype; + if (sport->port.iotype & UPIO_MEM32BE) sport->port.ops = &lpuart32_pops; else sport->port.ops = &lpuart_pops; @@ -2033,7 +2040,7 @@ static int lpuart_probe(struct platform_device *pdev) platform_set_drvdata(pdev, &sport->port); - if (sport->lpuart32) + if (sport->port.iotype & UPIO_MEM32BE) lpuart_reg.cons = LPUART32_CONSOLE; else lpuart_reg.cons = LPUART_CONSOLE; @@ -2086,7 +2093,7 @@ static int lpuart_suspend(struct device *dev) struct lpuart_port *sport = dev_get_drvdata(dev); unsigned long temp; - if (sport->lpuart32) { + if (sport->port.iotype & UPIO_MEM32BE) { /* disable Rx/Tx and interrupts */ temp = lpuart32_read(sport->port.membase + UARTCTRL); temp &= ~(UARTCTRL_TE | UARTCTRL_TIE | UARTCTRL_TCIE); @@ -2137,7 +2144,7 @@ static int lpuart_resume(struct device *dev) if (sport->port.suspended && !sport->port.irq_wake) clk_prepare_enable(sport->clk); - if (sport->lpuart32) { + if (sport->port.iotype & UPIO_MEM32BE) { lpuart32_setup_watermark(sport); temp = lpuart32_read(sport->port.membase + UARTCTRL); temp |= (UARTCTRL_RIE | UARTCTRL_TIE | UARTCTRL_RE | |