1 files changed, 37 insertions, 31 deletions

diff --git a/drivers/char/synclink_gt.c b/drivers/char/synclink_gt.c
index 5f6a5da696c7..1f954acf2bac 100644
--- a/drivers/char/synclink_gt.c
+++ b/drivers/char/synclink_gt.c
@@ -2039,37 +2039,41 @@ static void bh_transmit(struct slgt_info *info)
                 tty_wakeup(tty);
 }
 
-static void dsr_change(struct slgt_info *info)
+static void dsr_change(struct slgt_info *info, unsigned short status)
 {
-        get_signals(info);
+        if (status & BIT3) {
+                info->signals |= SerialSignal_DSR;
+                info->input_signal_events.dsr_up++;
+        } else {
+                info->signals &= ~SerialSignal_DSR;
+                info->input_signal_events.dsr_down++;
+        }
         DBGISR(("dsr_change %s signals=%04X\n", info->device_name, info->signals));
         if ((info->dsr_chkcount)++ == IO_PIN_SHUTDOWN_LIMIT) {
                 slgt_irq_off(info, IRQ_DSR);
                 return;
         }
         info->icount.dsr++;
-        if (info->signals & SerialSignal_DSR)
-                info->input_signal_events.dsr_up++;
-        else
-                info->input_signal_events.dsr_down++;
         wake_up_interruptible(&info->status_event_wait_q);
         wake_up_interruptible(&info->event_wait_q);
         info->pending_bh |= BH_STATUS;
 }
 
-static void cts_change(struct slgt_info *info)
+static void cts_change(struct slgt_info *info, unsigned short status)
 {
-        get_signals(info);
+        if (status & BIT2) {
+                info->signals |= SerialSignal_CTS;
+                info->input_signal_events.cts_up++;
+        } else {
+                info->signals &= ~SerialSignal_CTS;
+                info->input_signal_events.cts_down++;
+        }
         DBGISR(("cts_change %s signals=%04X\n", info->device_name, info->signals));
         if ((info->cts_chkcount)++ == IO_PIN_SHUTDOWN_LIMIT) {
                 slgt_irq_off(info, IRQ_CTS);
                 return;
         }
         info->icount.cts++;
-        if (info->signals & SerialSignal_CTS)
-                info->input_signal_events.cts_up++;
-        else
-                info->input_signal_events.cts_down++;
         wake_up_interruptible(&info->status_event_wait_q);
         wake_up_interruptible(&info->event_wait_q);
         info->pending_bh |= BH_STATUS;
@@ -2090,20 +2094,21 @@ static void cts_change(struct slgt_info *info)
         }
 }
 
-static void dcd_change(struct slgt_info *info)
+static void dcd_change(struct slgt_info *info, unsigned short status)
 {
-        get_signals(info);
+        if (status & BIT1) {
+                info->signals |= SerialSignal_DCD;
+                info->input_signal_events.dcd_up++;
+        } else {
+                info->signals &= ~SerialSignal_DCD;
+                info->input_signal_events.dcd_down++;
+        }
         DBGISR(("dcd_change %s signals=%04X\n", info->device_name, info->signals));
         if ((info->dcd_chkcount)++ == IO_PIN_SHUTDOWN_LIMIT) {
                 slgt_irq_off(info, IRQ_DCD);
                 return;
         }
         info->icount.dcd++;
-        if (info->signals & SerialSignal_DCD) {
-                info->input_signal_events.dcd_up++;
-        } else {
-                info->input_signal_events.dcd_down++;
-        }
 #if SYNCLINK_GENERIC_HDLC
         if (info->netcount) {
                 if (info->signals & SerialSignal_DCD)
@@ -2126,20 +2131,21 @@ static void dcd_change(struct slgt_info *info)
         }
 }
 
-static void ri_change(struct slgt_info *info)
+static void ri_change(struct slgt_info *info, unsigned short status)
 {
-        get_signals(info);
+        if (status & BIT0) {
+                info->signals |= SerialSignal_RI;
+                info->input_signal_events.ri_up++;
+        } else {
+                info->signals &= ~SerialSignal_RI;
+                info->input_signal_events.ri_down++;
+        }
         DBGISR(("ri_change %s signals=%04X\n", info->device_name, info->signals));
         if ((info->ri_chkcount)++ == IO_PIN_SHUTDOWN_LIMIT) {
                 slgt_irq_off(info, IRQ_RI);
                 return;
         }
-        info->icount.dcd++;
-        if (info->signals & SerialSignal_RI) {
-                info->input_signal_events.ri_up++;
-        } else {
-                info->input_signal_events.ri_down++;
-        }
+        info->icount.rng++;
         wake_up_interruptible(&info->status_event_wait_q);
         wake_up_interruptible(&info->event_wait_q);
         info->pending_bh |= BH_STATUS;
@@ -2190,13 +2196,13 @@ static void isr_serial(struct slgt_info *info)
         }
 
         if (status & IRQ_DSR)
-                dsr_change(info);
+                dsr_change(info, status);
         if (status & IRQ_CTS)
-                cts_change(info);
+                cts_change(info, status);
         if (status & IRQ_DCD)
-                dcd_change(info);
+                dcd_change(info, status);
         if (status & IRQ_RI)
-                ri_change(info);
+                ri_change(info, status);
 }
 
 static void isr_rdma(struct slgt_info *info)