diff options
-rw-r--r-- | arch/arm/mach-omap2/serial.c | 118 | ||||
-rw-r--r-- | arch/arm/plat-omap/include/plat/omap-serial.h | 1 | ||||
-rw-r--r-- | arch/arm/plat-omap/include/plat/serial.h | 1 | ||||
-rw-r--r-- | drivers/tty/serial/omap-serial.c | 1 |
4 files changed, 2 insertions, 119 deletions
diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c index e027bc9..5bdbc42 100644 --- a/arch/arm/mach-omap2/serial.c +++ b/arch/arm/mach-omap2/serial.c @@ -58,8 +58,6 @@ struct omap_uart_state { int num; int can_sleep; - struct timer_list timer; - u32 timeout; void __iomem *wk_st; void __iomem *wk_en; @@ -67,13 +65,9 @@ struct omap_uart_state { u32 padconf; u32 dma_enabled; - struct clk *ick; - struct clk *fck; int clocked; - int irq; int regshift; - int irqflags; void __iomem *membase; resource_size_t mapbase; @@ -331,32 +325,6 @@ static void omap_uart_block_sleep(struct omap_uart_state *uart) omap_uart_smart_idle_enable(uart, 0); uart->can_sleep = 0; - if (uart->timeout) - mod_timer(&uart->timer, jiffies + uart->timeout); - else - del_timer(&uart->timer); -} - -static void omap_uart_allow_sleep(struct omap_uart_state *uart) -{ - if (device_may_wakeup(&uart->pdev->dev)) - omap_uart_enable_wakeup(uart); - else - omap_uart_disable_wakeup(uart); - - if (!uart->clocked) - return; - - omap_uart_smart_idle_enable(uart, 1); - uart->can_sleep = 1; - del_timer(&uart->timer); -} - -static void omap_uart_idle_timer(unsigned long data) -{ - struct omap_uart_state *uart = (struct omap_uart_state *)data; - - omap_uart_allow_sleep(uart); } int omap_uart_can_sleep(void) @@ -380,35 +348,11 @@ int omap_uart_can_sleep(void) return can_sleep; } -/** - * omap_uart_interrupt() - * - * This handler is used only to detect that *any* UART interrupt has - * occurred. It does _nothing_ to handle the interrupt. Rather, - * any UART interrupt will trigger the inactivity timer so the - * UART will not idle or sleep for its timeout period. - * - **/ -/* static int first_interrupt; */ -static irqreturn_t omap_uart_interrupt(int irq, void *dev_id) -{ - struct omap_uart_state *uart = dev_id; - - omap_uart_block_sleep(uart); - - return IRQ_NONE; -} - static void omap_uart_idle_init(struct omap_uart_state *uart) { int ret; uart->can_sleep = 0; - uart->timeout = DEFAULT_TIMEOUT; - setup_timer(&uart->timer, omap_uart_idle_timer, - (unsigned long) uart); - if (uart->timeout) - mod_timer(&uart->timer, jiffies + uart->timeout); omap_uart_smart_idle_enable(uart, 0); if (cpu_is_omap34xx() && !(cpu_is_ti81xx() || cpu_is_am33xx())) { @@ -470,51 +414,8 @@ static void omap_uart_idle_init(struct omap_uart_state *uart) uart->wk_mask = 0; uart->padconf = 0; } - - uart->irqflags |= IRQF_SHARED; - ret = request_threaded_irq(uart->irq, NULL, omap_uart_interrupt, - IRQF_SHARED, "serial idle", (void *)uart); - WARN_ON(ret); -} - -static ssize_t sleep_timeout_show(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - struct platform_device *pdev = to_platform_device(dev); - struct omap_device *odev = to_omap_device(pdev); - struct omap_uart_state *uart = odev->hwmods[0]->dev_attr; - - return sprintf(buf, "%u\n", uart->timeout / HZ); } -static ssize_t sleep_timeout_store(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t n) -{ - struct platform_device *pdev = to_platform_device(dev); - struct omap_device *odev = to_omap_device(pdev); - struct omap_uart_state *uart = odev->hwmods[0]->dev_attr; - unsigned int value; - - if (sscanf(buf, "%u", &value) != 1) { - dev_err(dev, "sleep_timeout_store: Invalid value\n"); - return -EINVAL; - } - - uart->timeout = value * HZ; - if (uart->timeout) - mod_timer(&uart->timer, jiffies + uart->timeout); - else - /* A zero value means disable timeout feature */ - omap_uart_block_sleep(uart); - - return n; -} - -static DEVICE_ATTR(sleep_timeout, 0644, sleep_timeout_show, - sleep_timeout_store); -#define DEV_CREATE_FILE(dev, attr) WARN_ON(device_create_file(dev, attr)) #else static inline void omap_uart_idle_init(struct omap_uart_state *uart) {} static void omap_uart_block_sleep(struct omap_uart_state *uart) @@ -522,7 +423,6 @@ static void omap_uart_block_sleep(struct omap_uart_state *uart) /* Needed to enable UART clocks when built without CONFIG_PM */ omap_uart_enable_clocks(uart); } -#define DEV_CREATE_FILE(dev, attr) #endif /* CONFIG_PM */ static int __init omap_serial_early_init(void) @@ -606,8 +506,7 @@ void __init omap_serial_init_port(struct omap_board_data *bdata) omap_up.uartclk = OMAP24XX_BASE_BAUD * 16; omap_up.mapbase = oh->slaves[0]->addr->pa_start; omap_up.membase = omap_hwmod_get_mpu_rt_va(oh); - omap_up.irqflags = IRQF_SHARED; - omap_up.flags = UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ; + omap_up.flags = UPF_BOOT_AUTOCONF; pdata = &omap_up; pdata_size = sizeof(struct omap_uart_port_info); @@ -623,7 +522,6 @@ void __init omap_serial_init_port(struct omap_board_data *bdata) omap_device_disable_idle_on_suspend(pdev); oh->mux = omap_hwmod_mux_init(bdata->pads, bdata->pads_cnt); - uart->irq = oh->mpu_irqs[0].irq; uart->regshift = 2; uart->mapbase = oh->slaves[0]->addr->pa_start; uart->membase = omap_hwmod_get_mpu_rt_va(oh); @@ -646,24 +544,12 @@ void __init omap_serial_init_port(struct omap_board_data *bdata) omap_hwmod_enable_wakeup(uart->oh); omap_device_idle(uart->pdev); - /* - * Need to block sleep long enough for interrupt driven - * driver to start. Console driver is in polling mode - * so device needs to be kept enabled while polling driver - * is in use. - */ - if (uart->timeout) - uart->timeout = (30 * HZ); omap_uart_block_sleep(uart); - uart->timeout = DEFAULT_TIMEOUT; - console_unlock(); if ((cpu_is_omap34xx() && uart->padconf) || - (uart->wk_en && uart->wk_mask)) { + (uart->wk_en && uart->wk_mask)) device_init_wakeup(&pdev->dev, true); - DEV_CREATE_FILE(&pdev->dev, &dev_attr_sleep_timeout); - } /* Enable the MDR1 errata for OMAP3 */ if (cpu_is_omap34xx() && !(cpu_is_ti81xx() || cpu_is_am33xx())) diff --git a/arch/arm/plat-omap/include/plat/omap-serial.h b/arch/arm/plat-omap/include/plat/omap-serial.h index 2682043..307cd6f 100644 --- a/arch/arm/plat-omap/include/plat/omap-serial.h +++ b/arch/arm/plat-omap/include/plat/omap-serial.h @@ -61,7 +61,6 @@ struct omap_uart_port_info { unsigned int uartclk; /* UART clock rate */ void __iomem *membase; /* ioremap cookie or NULL */ resource_size_t mapbase; /* resource base */ - unsigned long irqflags; /* request_irq flags */ upf_t flags; /* UPF_* flags */ }; diff --git a/arch/arm/plat-omap/include/plat/serial.h b/arch/arm/plat-omap/include/plat/serial.h index 73d9907..152500b 100644 --- a/arch/arm/plat-omap/include/plat/serial.h +++ b/arch/arm/plat-omap/include/plat/serial.h @@ -110,7 +110,6 @@ struct omap_board_data; extern void omap_serial_init(void); extern void omap_serial_init_port(struct omap_board_data *bdata); extern int omap_uart_can_sleep(void); -extern void omap_uart_check_wakeup(void); #endif #endif diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c index 5e713d3..be368cf7 100644 --- a/drivers/tty/serial/omap-serial.c +++ b/drivers/tty/serial/omap-serial.c @@ -1278,7 +1278,6 @@ static int serial_omap_probe(struct platform_device *pdev) up->port.membase = omap_up_info->membase; up->port.mapbase = omap_up_info->mapbase; up->port.flags = omap_up_info->flags; - up->port.irqflags = omap_up_info->irqflags; up->port.uartclk = omap_up_info->uartclk; up->uart_dma.uart_base = mem->start; |