aboutsummaryrefslogtreecommitdiff
path: root/drivers/tty/serial/msm_serial_hs.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/tty/serial/msm_serial_hs.c')
-rw-r--r--drivers/tty/serial/msm_serial_hs.c55
1 files changed, 25 insertions, 30 deletions
diff --git a/drivers/tty/serial/msm_serial_hs.c b/drivers/tty/serial/msm_serial_hs.c
index 624701f8138..48e94961a9e 100644
--- a/drivers/tty/serial/msm_serial_hs.c
+++ b/drivers/tty/serial/msm_serial_hs.c
@@ -30,6 +30,8 @@
#include <linux/serial.h>
#include <linux/serial_core.h>
+#include <linux/tty.h>
+#include <linux/tty_flip.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/interrupt.h>
@@ -48,7 +50,6 @@
#include <linux/atomic.h>
#include <asm/irq.h>
-#include <asm/system.h>
#include <mach/hardware.h>
#include <mach/dma.h>
@@ -400,7 +401,7 @@ static int msm_hs_request_port(struct uart_port *port)
return 0;
}
-static int __devexit msm_hs_remove(struct platform_device *pdev)
+static int msm_hs_remove(struct platform_device *pdev)
{
struct msm_hs_port *msm_uport;
@@ -420,9 +421,9 @@ static int __devexit msm_hs_remove(struct platform_device *pdev)
msm_uport->rx.rbuffer);
dma_pool_destroy(msm_uport->rx.pool);
- dma_unmap_single(dev, msm_uport->rx.cmdptr_dmaaddr, sizeof(u32 *),
+ dma_unmap_single(dev, msm_uport->rx.cmdptr_dmaaddr, sizeof(u32),
DMA_TO_DEVICE);
- dma_unmap_single(dev, msm_uport->tx.mapped_cmd_ptr_ptr, sizeof(u32 *),
+ dma_unmap_single(dev, msm_uport->tx.mapped_cmd_ptr_ptr, sizeof(u32),
DMA_TO_DEVICE);
dma_unmap_single(dev, msm_uport->tx.mapped_cmd_ptr, sizeof(dmov_box),
DMA_TO_DEVICE);
@@ -810,7 +811,7 @@ static void msm_hs_submit_tx_locked(struct uart_port *uport)
*tx->command_ptr_ptr = CMD_PTR_LP | DMOV_CMD_ADDR(tx->mapped_cmd_ptr);
dma_sync_single_for_device(uport->dev, tx->mapped_cmd_ptr_ptr,
- sizeof(u32 *), DMA_TO_DEVICE);
+ sizeof(u32), DMA_TO_DEVICE);
/* Save tx_count to use in Callback */
tx->tx_count = tx_count;
@@ -906,7 +907,7 @@ static void msm_hs_dmov_rx_callback(struct msm_dmov_cmd *cmd_ptr,
unsigned int error_f = 0;
unsigned long flags;
unsigned int flush;
- struct tty_struct *tty;
+ struct tty_port *port;
struct uart_port *uport;
struct msm_hs_port *msm_uport;
@@ -916,7 +917,7 @@ static void msm_hs_dmov_rx_callback(struct msm_dmov_cmd *cmd_ptr,
spin_lock_irqsave(&uport->lock, flags);
clk_enable(msm_uport->clk);
- tty = uport->state->port.tty;
+ port = &uport->state->port;
msm_hs_write(uport, UARTDM_CR_ADDR, STALE_EVENT_DISABLE);
@@ -925,7 +926,7 @@ static void msm_hs_dmov_rx_callback(struct msm_dmov_cmd *cmd_ptr,
/* overflow is not connect to data in a FIFO */
if (unlikely((status & UARTDM_SR_OVERRUN_BMSK) &&
(uport->read_status_mask & CREAD))) {
- tty_insert_flip_char(tty, 0, TTY_OVERRUN);
+ tty_insert_flip_char(port, 0, TTY_OVERRUN);
uport->icount.buf_overrun++;
error_f = 1;
}
@@ -938,7 +939,7 @@ static void msm_hs_dmov_rx_callback(struct msm_dmov_cmd *cmd_ptr,
uport->icount.parity++;
error_f = 1;
if (uport->ignore_status_mask & IGNPAR)
- tty_insert_flip_char(tty, 0, TTY_PARITY);
+ tty_insert_flip_char(port, 0, TTY_PARITY);
}
if (error_f)
@@ -958,7 +959,7 @@ static void msm_hs_dmov_rx_callback(struct msm_dmov_cmd *cmd_ptr,
rx_count = msm_hs_read(uport, UARTDM_RX_TOTAL_SNAP_ADDR);
if (0 != (uport->read_status_mask & CREAD)) {
- retval = tty_insert_flip_string(tty, msm_uport->rx.buffer,
+ retval = tty_insert_flip_string(port, msm_uport->rx.buffer,
rx_count);
BUG_ON(retval != rx_count);
}
@@ -978,9 +979,8 @@ static void msm_hs_tty_flip_buffer_work(struct work_struct *work)
{
struct msm_hs_port *msm_uport =
container_of(work, struct msm_hs_port, rx.tty_work);
- struct tty_struct *tty = msm_uport->uport.state->port.tty;
- tty_flip_buffer_push(tty);
+ tty_flip_buffer_push(&msm_uport->uport.state->port);
}
/*
@@ -1085,12 +1085,10 @@ static void msm_hs_config_port(struct uart_port *uport, int cfg_flags)
}
/* Handle CTS changes (Called from interrupt handler) */
-static void msm_hs_handle_delta_cts(struct uart_port *uport)
+static void msm_hs_handle_delta_cts_locked(struct uart_port *uport)
{
- unsigned long flags;
struct msm_hs_port *msm_uport = UARTDM_TO_MSM(uport);
- spin_lock_irqsave(&uport->lock, flags);
clk_enable(msm_uport->clk);
/* clear interrupt */
@@ -1098,7 +1096,6 @@ static void msm_hs_handle_delta_cts(struct uart_port *uport)
uport->icount.cts++;
clk_disable(msm_uport->clk);
- spin_unlock_irqrestore(&uport->lock, flags);
/* clear the IOCTL TIOCMIWAIT if called */
wake_up_interruptible(&uport->state->port.delta_msr_wait);
@@ -1246,7 +1243,7 @@ static irqreturn_t msm_hs_isr(int irq, void *dev)
/* Change in CTS interrupt */
if (isr_status & UARTDM_ISR_DELTA_CTS_BMSK)
- msm_hs_handle_delta_cts(uport);
+ msm_hs_handle_delta_cts_locked(uport);
spin_unlock_irqrestore(&uport->lock, flags);
@@ -1346,7 +1343,6 @@ static irqreturn_t msm_hs_rx_wakeup_isr(int irq, void *dev)
unsigned long flags;
struct msm_hs_port *msm_uport = dev;
struct uart_port *uport = &msm_uport->uport;
- struct tty_struct *tty = NULL;
spin_lock_irqsave(&uport->lock, flags);
if (msm_uport->clk_state == MSM_HS_CLK_OFF) {
@@ -1363,8 +1359,7 @@ static irqreturn_t msm_hs_rx_wakeup_isr(int irq, void *dev)
* optionally inject char into tty rx */
msm_hs_request_clock_on_locked(uport);
if (msm_uport->rx_wakeup.inject_rx) {
- tty = uport->state->port.tty;
- tty_insert_flip_char(tty,
+ tty_insert_flip_char(&uport->state->port,
msm_uport->rx_wakeup.rx_to_inject,
TTY_NORMAL);
queue_work(msm_hs_workqueue, &msm_uport->rx.tty_work);
@@ -1402,7 +1397,7 @@ static int msm_hs_startup(struct uart_port *uport)
/* do not let tty layer execute RX in global workqueue, use a
* dedicated workqueue managed by this driver */
- uport->state->port.tty->low_latency = 1;
+ uport->state->port.low_latency = 1;
/* turn on uart clk */
ret = msm_hs_init_clk_locked(uport);
@@ -1523,7 +1518,7 @@ err_msm_hs_init_clk:
}
/* Initialize tx and rx data structures */
-static int __devinit uartdm_init_port(struct uart_port *uport)
+static int uartdm_init_port(struct uart_port *uport)
{
int ret = 0;
struct msm_hs_port *msm_uport = UARTDM_TO_MSM(uport);
@@ -1535,7 +1530,7 @@ static int __devinit uartdm_init_port(struct uart_port *uport)
if (!tx->command_ptr)
return -ENOMEM;
- tx->command_ptr_ptr = kmalloc(sizeof(u32 *), GFP_KERNEL | __GFP_DMA);
+ tx->command_ptr_ptr = kmalloc(sizeof(u32), GFP_KERNEL | __GFP_DMA);
if (!tx->command_ptr_ptr) {
ret = -ENOMEM;
goto err_tx_command_ptr_ptr;
@@ -1545,7 +1540,7 @@ static int __devinit uartdm_init_port(struct uart_port *uport)
sizeof(dmov_box), DMA_TO_DEVICE);
tx->mapped_cmd_ptr_ptr = dma_map_single(uport->dev,
tx->command_ptr_ptr,
- sizeof(u32 *), DMA_TO_DEVICE);
+ sizeof(u32), DMA_TO_DEVICE);
tx->xfer.cmdptr = DMOV_CMD_ADDR(tx->mapped_cmd_ptr_ptr);
init_waitqueue_head(&rx->wait);
@@ -1573,7 +1568,7 @@ static int __devinit uartdm_init_port(struct uart_port *uport)
goto err_rx_command_ptr;
}
- rx->command_ptr_ptr = kmalloc(sizeof(u32 *), GFP_KERNEL | __GFP_DMA);
+ rx->command_ptr_ptr = kmalloc(sizeof(u32), GFP_KERNEL | __GFP_DMA);
if (!rx->command_ptr_ptr) {
pr_err("%s(): cannot allocate rx->command_ptr_ptr", __func__);
ret = -ENOMEM;
@@ -1591,7 +1586,7 @@ static int __devinit uartdm_init_port(struct uart_port *uport)
*rx->command_ptr_ptr = CMD_PTR_LP | DMOV_CMD_ADDR(rx->mapped_cmd_ptr);
rx->cmdptr_dmaaddr = dma_map_single(uport->dev, rx->command_ptr_ptr,
- sizeof(u32 *), DMA_TO_DEVICE);
+ sizeof(u32), DMA_TO_DEVICE);
rx->xfer.cmdptr = DMOV_CMD_ADDR(rx->cmdptr_dmaaddr);
INIT_WORK(&rx->tty_work, msm_hs_tty_flip_buffer_work);
@@ -1607,7 +1602,7 @@ err_dma_pool_alloc:
dma_pool_destroy(msm_uport->rx.pool);
err_dma_pool_create:
dma_unmap_single(uport->dev, msm_uport->tx.mapped_cmd_ptr_ptr,
- sizeof(u32 *), DMA_TO_DEVICE);
+ sizeof(u32), DMA_TO_DEVICE);
dma_unmap_single(uport->dev, msm_uport->tx.mapped_cmd_ptr,
sizeof(dmov_box), DMA_TO_DEVICE);
kfree(msm_uport->tx.command_ptr_ptr);
@@ -1616,14 +1611,14 @@ err_tx_command_ptr_ptr:
return ret;
}
-static int __devinit msm_hs_probe(struct platform_device *pdev)
+static int msm_hs_probe(struct platform_device *pdev)
{
int ret;
struct uart_port *uport;
struct msm_hs_port *msm_uport;
struct resource *resource;
const struct msm_serial_hs_platform_data *pdata =
- pdev->dev.platform_data;
+ dev_get_platdata(&pdev->dev);
if (pdev->id < 0 || pdev->id >= UARTDM_NR) {
printk(KERN_ERR "Invalid plaform device ID = %d\n", pdev->id);
@@ -1840,7 +1835,7 @@ static const struct dev_pm_ops msm_hs_dev_pm_ops = {
static struct platform_driver msm_serial_hs_platform_driver = {
.probe = msm_hs_probe,
- .remove = __devexit_p(msm_hs_remove),
+ .remove = msm_hs_remove,
.driver = {
.name = "msm_serial_hs",
.owner = THIS_MODULE,
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-13 17:53:47 +0000