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-rw-r--r--arch/arm/mach-omap2/serial.c118
-rw-r--r--arch/arm/plat-omap/include/plat/omap-serial.h1
-rw-r--r--arch/arm/plat-omap/include/plat/serial.h1
3 files changed, 2 insertions, 118 deletions
diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c
index e027bc99251c..5bdbc42e42a6 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 2682043f5a5b..307cd6f15822 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 73d990780da3..152500b558a2 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