[PATCH]media: dvb-frontends: Add delay to Si2168 restart

[Ron Economos <w6rz@xxxxxxxxxxx>]

On faster CPUs a delay is required after the POWER_UP/RESUME command and 
the DD_RESTART command. Without the delay, the DD_RESTART command often 
returns -EREMOTEIO and the Si2168 does not restart.

diff --git a/drivers/media/dvb-frontends/si2168.c 
b/drivers/media/dvb-frontends/si2168.c
index 172fc36..f2a3c8f 100644
--- a/drivers/media/dvb-frontends/si2168.c
+++ b/drivers/media/dvb-frontends/si2168.c
@@ -15,6 +15,7 @@
  */

 #include "si2168_priv.h"
+#include <linux/delay.h>

 static const struct dvb_frontend_ops si2168_ops;

@@ -435,6 +436,7 @@ static int si2168_init(struct dvb_frontend *fe)
                if (ret)
                        goto err;

+               udelay(100);
                memcpy(cmd.args, "\x85", 1);
                cmd.wlen = 1;
                cmd.rlen = 1;