diff options
| author | Alex Shi <alex.shi@linaro.org> | 2016-09-20 15:18:54 +0800 |
|---|---|---|
| committer | Alex Shi <alex.shi@linaro.org> | 2016-09-20 15:18:54 +0800 |
| commit | 5f87c475f82a75e10bc6e249b7471349f1ef1636 (patch) | |
| tree | df697b570c923c722b5ba24f502c6abdbb5e05f1 /drivers/tty | |
| parent | d3a1d035ef89cfb89cf6e2128d44b95771f2c7b4 (diff) | |
| parent | d2d693d1ba7d93ec7c5db8aca2da29a4c91f6782 (diff) | |
Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android
Conflicts:
in fs/proc/task_mmu.c:
looks like vma_get_anon_name() want have a name for anonymous
vma when there is no name used in vma. commit: 586278d78bf
The name show is after any other names, so it maybe covered.
but anyway, it just a show here.
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/serial/atmel_serial.c | 14 | ||||
| -rw-r--r-- | drivers/tty/serial/msm_serial.c | 2 | ||||
| -rw-r--r-- | drivers/tty/serial/samsung.c | 18 |
3 files changed, 22 insertions, 12 deletions
diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c index 7bbadd176c74..7b5462eb8388 100644 --- a/drivers/tty/serial/atmel_serial.c +++ b/drivers/tty/serial/atmel_serial.c @@ -485,19 +485,21 @@ static void atmel_start_tx(struct uart_port *port) { struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); - if (atmel_use_pdc_tx(port)) { - if (atmel_uart_readl(port, ATMEL_PDC_PTSR) & ATMEL_PDC_TXTEN) - /* The transmitter is already running. Yes, we - really need this.*/ - return; + if (atmel_use_pdc_tx(port) && (atmel_uart_readl(port, ATMEL_PDC_PTSR) + & ATMEL_PDC_TXTEN)) + /* The transmitter is already running. Yes, we + really need this.*/ + return; + if (atmel_use_pdc_tx(port) || atmel_use_dma_tx(port)) if ((port->rs485.flags & SER_RS485_ENABLED) && !(port->rs485.flags & SER_RS485_RX_DURING_TX)) atmel_stop_rx(port); + if (atmel_use_pdc_tx(port)) /* re-enable PDC transmit */ atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_TXTEN); - } + /* Enable interrupts */ atmel_uart_writel(port, ATMEL_US_IER, atmel_port->tx_done_mask); } diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c index dcde955475dc..e1de4944e0ce 100644 --- a/drivers/tty/serial/msm_serial.c +++ b/drivers/tty/serial/msm_serial.c @@ -726,7 +726,7 @@ static void msm_handle_tx(struct uart_port *port) return; } - pio_count = CIRC_CNT(xmit->head, xmit->tail, UART_XMIT_SIZE); + pio_count = CIRC_CNT_TO_END(xmit->head, xmit->tail, UART_XMIT_SIZE); dma_count = CIRC_CNT_TO_END(xmit->head, xmit->tail, UART_XMIT_SIZE); dma_min = 1; /* Always DMA */ diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c index 8320173af846..237ef5573c18 100644 --- a/drivers/tty/serial/samsung.c +++ b/drivers/tty/serial/samsung.c @@ -1676,7 +1676,7 @@ static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport, return -ENODEV; if (port->mapbase != 0) - return 0; + return -EINVAL; /* setup info for port */ port->dev = &platdev->dev; @@ -1730,22 +1730,25 @@ static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport, ourport->dma = devm_kzalloc(port->dev, sizeof(*ourport->dma), GFP_KERNEL); - if (!ourport->dma) - return -ENOMEM; + if (!ourport->dma) { + ret = -ENOMEM; + goto err; + } } ourport->clk = clk_get(&platdev->dev, "uart"); if (IS_ERR(ourport->clk)) { pr_err("%s: Controller clock not found\n", dev_name(&platdev->dev)); - return PTR_ERR(ourport->clk); + ret = PTR_ERR(ourport->clk); + goto err; } ret = clk_prepare_enable(ourport->clk); if (ret) { pr_err("uart: clock failed to prepare+enable: %d\n", ret); clk_put(ourport->clk); - return ret; + goto err; } /* Keep all interrupts masked and cleared */ @@ -1761,7 +1764,12 @@ static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport, /* reset the fifos (and setup the uart) */ s3c24xx_serial_resetport(port, cfg); + return 0; + +err: + port->mapbase = 0; + return ret; } /* Device driver serial port probe */ |