V4L/DVB: ngene: Make command timeout workaround configurable

Make command timeout workaround configurable,
activate it for firmware version <= 17.

Signed-off-by: Oliver Endriss <o.endriss@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

3 files changed, 8 insertions, 16 deletions

diff --git a/drivers/media/dvb/ngene/ngene-core.c b/drivers/media/dvb/ngene/ngene-core.c
index 35bed6095b1e..2bdcf59829d1 100644
--- a/drivers/media/dvb/ngene/ngene-core.c
+++ b/drivers/media/dvb/ngene/ngene-core.c
@@ -53,8 +53,6 @@ MODULE_PARM_DESC(debug, "Print debugging information.");
 
 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
 
-#define COMMAND_TIMEOUT_WORKAROUND
-
 #define dprintk if (debug) printk
 
 #define ngwriteb(dat, adr)         writeb((dat), (char *)(dev->iomem + (adr)))
@@ -1252,14 +1250,17 @@ static int ngene_load_firm(struct ngene *dev)
                 version = 15;
                 size = 23466;
                 fw_name = "ngene_15.fw";
+                dev->cmd_timeout_workaround = true;
                 break;
         case 16:
                 size = 23498;
                 fw_name = "ngene_16.fw";
+                dev->cmd_timeout_workaround = true;
                 break;
         case 17:
                 size = 24446;
                 fw_name = "ngene_17.fw";
+                dev->cmd_timeout_workaround = true;
                 break;
         }
 
@@ -1410,10 +1411,8 @@ static void release_channel(struct ngene_channel *chan)
         struct ngene_info *ni = dev->card_info;
         int io = ni->io_type[chan->number];
 
-#ifdef COMMAND_TIMEOUT_WORKAROUND
-        if (chan->running)
+        if (chan->dev->cmd_timeout_workaround && chan->running)
                 set_transfer(chan, 0);
-#endif
 
         tasklet_kill(&chan->demux_tasklet);
 
diff --git a/drivers/media/dvb/ngene/ngene-dvb.c b/drivers/media/dvb/ngene/ngene-dvb.c
index 96013eb353cd..61a932c1cfff 100644
--- a/drivers/media/dvb/ngene/ngene-dvb.c
+++ b/drivers/media/dvb/ngene/ngene-dvb.c
@@ -44,8 +44,6 @@
 
 #include "ngene.h"
 
-#define COMMAND_TIMEOUT_WORKAROUND
-
 
 /****************************************************************************/
 /* COMMAND API interface ****************************************************/
@@ -69,9 +67,7 @@ void *tsin_exchange(void *priv, void *buf, u32 len, u32 clock, u32 flags)
         struct ngene_channel *chan = priv;
 
 
-#ifdef COMMAND_TIMEOUT_WORKAROUND
         if (chan->users > 0)
-#endif
                 dvb_dmx_swfilter(&chan->demux, buf, len);
         return NULL;
 }
@@ -106,11 +102,8 @@ int ngene_start_feed(struct dvb_demux_feed *dvbdmxfeed)
         struct ngene_channel *chan = dvbdmx->priv;
 
         if (chan->users == 0) {
-#ifdef COMMAND_TIMEOUT_WORKAROUND
-                if (!chan->running)
-#endif
+                if (!chan->dev->cmd_timeout_workaround || !chan->running)
                         set_transfer(chan, 1);
-                /* msleep(10); */
         }
 
         return ++chan->users;
@@ -124,9 +117,8 @@ int ngene_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
         if (--chan->users)
                 return chan->users;
 
-#ifndef COMMAND_TIMEOUT_WORKAROUND
-        set_transfer(chan, 0);
-#endif
+        if (!chan->dev->cmd_timeout_workaround)
+                set_transfer(chan, 0);
 
         return 0;
 }
diff --git a/drivers/media/dvb/ngene/ngene.h b/drivers/media/dvb/ngene/ngene.h
index b951d59e3617..8fb4200f83f8 100644
--- a/drivers/media/dvb/ngene/ngene.h
+++ b/drivers/media/dvb/ngene/ngene.h
@@ -726,6 +726,7 @@ struct ngene {
         u32                   fw_interface_version;
         u32                   icounts;
         bool                  msi_enabled;
+        bool                  cmd_timeout_workaround;
 
         u8                   *CmdDoneByte;
         int                   BootFirmware;