diff options
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/tty/serial/8250/8250.c | 2 | ||||
| -rw-r--r-- | drivers/tty/serial/m32r_sio.c (renamed from drivers/tty/serial/8250/m32r_sio.c) | 0 | ||||
| -rw-r--r-- | drivers/tty/serial/m32r_sio.h (renamed from drivers/tty/serial/8250/m32r_sio.h) | 0 | ||||
| -rw-r--r-- | drivers/tty/serial/m32r_sio_reg.h (renamed from drivers/tty/serial/8250/m32r_sio_reg.h) | 0 | ||||
| -rw-r--r-- | drivers/tty/serial/omap-serial.c | 30 | ||||
| -rw-r--r-- | drivers/tty/serial/samsung.c | 3 |
7 files changed, 29 insertions, 8 deletions
diff --git a/drivers/tty/Kconfig b/drivers/tty/Kconfig index b3d17416d86..830cd62d849 100644 --- a/drivers/tty/Kconfig +++ b/drivers/tty/Kconfig @@ -365,7 +365,7 @@ config PPC_EPAPR_HV_BYTECHAN config PPC_EARLY_DEBUG_EHV_BC bool "Early console (udbg) support for ePAPR hypervisors" - depends on PPC_EPAPR_HV_BYTECHAN + depends on PPC_EPAPR_HV_BYTECHAN=y help Select this option to enable early console (a.k.a. "udbg") support via an ePAPR byte channel. You also need to choose the byte channel diff --git a/drivers/tty/serial/8250/8250.c b/drivers/tty/serial/8250/8250.c index 9f50c4e3c2b..9b7336fcfbb 100644 --- a/drivers/tty/serial/8250/8250.c +++ b/drivers/tty/serial/8250/8250.c @@ -45,7 +45,7 @@ #include "8250.h" #ifdef CONFIG_SPARC -#include "suncore.h" +#include "../suncore.h" #endif /* diff --git a/drivers/tty/serial/8250/m32r_sio.c b/drivers/tty/serial/m32r_sio.c index 94a6792bf97..94a6792bf97 100644 --- a/drivers/tty/serial/8250/m32r_sio.c +++ b/drivers/tty/serial/m32r_sio.c diff --git a/drivers/tty/serial/8250/m32r_sio.h b/drivers/tty/serial/m32r_sio.h index e9b7e11793b..e9b7e11793b 100644 --- a/drivers/tty/serial/8250/m32r_sio.h +++ b/drivers/tty/serial/m32r_sio.h diff --git a/drivers/tty/serial/8250/m32r_sio_reg.h b/drivers/tty/serial/m32r_sio_reg.h index 4671473793e..4671473793e 100644 --- a/drivers/tty/serial/8250/m32r_sio_reg.h +++ b/drivers/tty/serial/m32r_sio_reg.h diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c index 1c242693148..f80904145fd 100644 --- a/drivers/tty/serial/omap-serial.c +++ b/drivers/tty/serial/omap-serial.c @@ -46,6 +46,13 @@ #define DEFAULT_CLK_SPEED 48000000 /* 48Mhz*/ +/* SCR register bitmasks */ +#define OMAP_UART_SCR_RX_TRIG_GRANU1_MASK (1 << 7) + +/* FCR register bitmasks */ +#define OMAP_UART_FCR_RX_FIFO_TRIG_SHIFT 6 +#define OMAP_UART_FCR_RX_FIFO_TRIG_MASK (0x3 << 6) + static struct uart_omap_port *ui[OMAP_MAX_HSUART_PORTS]; /* Forward declaration of functions */ @@ -129,6 +136,7 @@ static void serial_omap_enable_ms(struct uart_port *port) static void serial_omap_stop_tx(struct uart_port *port) { struct uart_omap_port *up = (struct uart_omap_port *)port; + struct omap_uart_port_info *pdata = up->pdev->dev.platform_data; if (up->use_dma && up->uart_dma.tx_dma_channel != OMAP_UART_DMA_CH_FREE) { @@ -151,6 +159,9 @@ static void serial_omap_stop_tx(struct uart_port *port) serial_out(up, UART_IER, up->ier); } + if (!up->use_dma && pdata->set_forceidle) + pdata->set_forceidle(up->pdev); + pm_runtime_mark_last_busy(&up->pdev->dev); pm_runtime_put_autosuspend(&up->pdev->dev); } @@ -279,6 +290,7 @@ static inline void serial_omap_enable_ier_thri(struct uart_omap_port *up) static void serial_omap_start_tx(struct uart_port *port) { struct uart_omap_port *up = (struct uart_omap_port *)port; + struct omap_uart_port_info *pdata = up->pdev->dev.platform_data; struct circ_buf *xmit; unsigned int start; int ret = 0; @@ -286,6 +298,8 @@ static void serial_omap_start_tx(struct uart_port *port) if (!up->use_dma) { pm_runtime_get_sync(&up->pdev->dev); serial_omap_enable_ier_thri(up); + if (pdata->set_noidle) + pdata->set_noidle(up->pdev); pm_runtime_mark_last_busy(&up->pdev->dev); pm_runtime_put_autosuspend(&up->pdev->dev); return; @@ -726,8 +740,7 @@ serial_omap_set_termios(struct uart_port *port, struct ktermios *termios, quot = serial_omap_get_divisor(port, baud); /* calculate wakeup latency constraint */ - up->calc_latency = (1000000 * up->port.fifosize) / - (1000 * baud / 8); + up->calc_latency = (USEC_PER_SEC * up->port.fifosize) / (baud / 8); up->latency = up->calc_latency; schedule_work(&up->qos_work); @@ -811,14 +824,21 @@ serial_omap_set_termios(struct uart_port *port, struct ktermios *termios, up->mcr = serial_in(up, UART_MCR); serial_out(up, UART_MCR, up->mcr | UART_MCR_TCRTLR); /* FIFO ENABLE, DMA MODE */ - serial_out(up, UART_FCR, up->fcr); - serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B); + + up->scr |= OMAP_UART_SCR_RX_TRIG_GRANU1_MASK; if (up->use_dma) { serial_out(up, UART_TI752_TLR, 0); - up->scr |= (UART_FCR_TRIGGER_4 | UART_FCR_TRIGGER_8); + up->scr |= UART_FCR_TRIGGER_4; + } else { + /* Set receive FIFO threshold to 1 byte */ + up->fcr &= ~OMAP_UART_FCR_RX_FIFO_TRIG_MASK; + up->fcr |= (0x1 << OMAP_UART_FCR_RX_FIFO_TRIG_SHIFT); } + serial_out(up, UART_FCR, up->fcr); + serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B); + serial_out(up, UART_OMAP_SCR, up->scr); serial_out(up, UART_EFR, up->efr); diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c index f96f37b5fec..c55e5fb16fa 100644 --- a/drivers/tty/serial/samsung.c +++ b/drivers/tty/serial/samsung.c @@ -1593,7 +1593,8 @@ static struct s3c24xx_serial_drv_data s5pv210_serial_drv_data = { #define S5PV210_SERIAL_DRV_DATA (kernel_ulong_t)NULL #endif -#ifdef CONFIG_CPU_EXYNOS4210 +#if defined(CONFIG_CPU_EXYNOS4210) || defined(CONFIG_SOC_EXYNOS4212) || \ + defined(CONFIG_SOC_EXYNOS4412) || defined(CONFIG_SOC_EXYNOS5250) static struct s3c24xx_serial_drv_data exynos4210_serial_drv_data = { .info = &(struct s3c24xx_uart_info) { .name = "Samsung Exynos4 UART", |