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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-02-09 21:52:57 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-02-09 21:52:57 (GMT) |
commit | 19e00f2f1d5273dbc52eab0ebc315cae3aa44b2a (patch) | |
tree | 50a7aecb4b3b94db2dd8061b3692fe216bc371cc | |
parent | b05ee6bf9e6c7acc38dca1466b63bb24ae5df6f3 (diff) | |
parent | 197234520bd83aba2199add57a9d2678ee7f9781 (diff) | |
download | linux-19e00f2f1d5273dbc52eab0ebc315cae3aa44b2a.tar.xz |
Merge tag 'tty-3.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Serial/TTY fixes for the 3.3-rc3 tree
Just a few new device ids, omap serial driver regression fixes, and a
build fix for the 8250 driver movement.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* tag 'tty-3.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
tty: serial: omap-serial: wakeup latency constraint is in microseconds, not milliseconds
tty: serial: OMAP: block idle while the UART is transferring data in PIO mode
tty: serial: OMAP: use a 1-byte RX FIFO threshold in PIO mode
m32r: relocate drivers back out of 8250 dir
tty: fix a build failure on sparc
serial: samsung: Add support for EXYNOS5250
serial: samsung: Add support for EXYNOS4212 and EXYNOS4412
drivers/tty/vt/vt_ioctl.c: fix KDFONTOP 32bit compatibility layer
-rw-r--r-- | arch/arm/mach-omap2/serial.c | 8 | ||||
-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, 32 insertions, 11 deletions
diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c index 247d894..f590afc 100644 --- a/arch/arm/mach-omap2/serial.c +++ b/arch/arm/mach-omap2/serial.c @@ -107,18 +107,18 @@ static void omap_uart_set_noidle(struct platform_device *pdev) omap_hwmod_set_slave_idlemode(od->hwmods[0], HWMOD_IDLEMODE_NO); } -static void omap_uart_set_forceidle(struct platform_device *pdev) +static void omap_uart_set_smartidle(struct platform_device *pdev) { struct omap_device *od = to_omap_device(pdev); - omap_hwmod_set_slave_idlemode(od->hwmods[0], HWMOD_IDLEMODE_FORCE); + omap_hwmod_set_slave_idlemode(od->hwmods[0], HWMOD_IDLEMODE_SMART); } #else static void omap_uart_enable_wakeup(struct platform_device *pdev, bool enable) {} static void omap_uart_set_noidle(struct platform_device *pdev) {} -static void omap_uart_set_forceidle(struct platform_device *pdev) {} +static void omap_uart_set_smartidle(struct platform_device *pdev) {} #endif /* CONFIG_PM */ #ifdef CONFIG_OMAP_MUX @@ -349,7 +349,7 @@ void __init omap_serial_init_port(struct omap_board_data *bdata, omap_up.uartclk = OMAP24XX_BASE_BAUD * 16; omap_up.flags = UPF_BOOT_AUTOCONF; omap_up.get_context_loss_count = omap_pm_get_dev_context_loss_count; - omap_up.set_forceidle = omap_uart_set_forceidle; + omap_up.set_forceidle = omap_uart_set_smartidle; omap_up.set_noidle = omap_uart_set_noidle; omap_up.enable_wakeup = omap_uart_enable_wakeup; omap_up.dma_rx_buf_size = info->dma_rx_buf_size; diff --git a/drivers/tty/serial/8250/8250.c b/drivers/tty/serial/8250/8250.c index 9f50c4e..9b7336fc 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 94a6792..94a6792 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 e9b7e11..e9b7e11 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 4671473..4671473 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 1c24269..f809041 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 f96f37b..c55e5fb 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", |