From: Johannes Stezenbach <js@linuxtv.org>
Date: Fri, 9 Sep 2005 20:02:34 +0000 (-0700)
Subject: [PATCH] dvb: frontend: cx24110: DiSEqC fix
X-Git-Tag: firefly_0821_release~41575
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=d897275500d8fac919a11073eb587ce0e3fcc36c;p=firefly-linux-kernel-4.4.55.git

[PATCH] dvb: frontend: cx24110: DiSEqC fix

Fix DiSEqC switching (one bug fix suggested by Peter Hettkamp, and one
experimentally determined msleep(30) suggested by Adam Szalkowski).

Signed-off-by: Johannes Stezenbach <js@linuxtv.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/drivers/media/dvb/frontends/cx24110.c b/drivers/media/dvb/frontends/cx24110.c
index 555d472e42de..71b54094bda8 100644
--- a/drivers/media/dvb/frontends/cx24110.c
+++ b/drivers/media/dvb/frontends/cx24110.c
@@ -398,7 +398,7 @@ static int cx24110_diseqc_send_burst(struct dvb_frontend* fe, fe_sec_mini_cmd_t
 		return -EINVAL;
 
 	rv = cx24110_readreg(state, 0x77);
-	cx24110_writereg(state, 0x77, rv|0x04);
+	cx24110_writereg(state, 0x77, rv | 0x04);
 
 	rv = cx24110_readreg(state, 0x76);
 	cx24110_writereg(state, 0x76, ((rv & 0x90) | 0x40 | bit));
@@ -418,7 +418,8 @@ static int cx24110_send_diseqc_msg(struct dvb_frontend* fe,
 		cx24110_writereg(state, 0x79 + i, cmd->msg[i]);
 
 	rv = cx24110_readreg(state, 0x77);
-	cx24110_writereg(state, 0x77, rv|0x04);
+	cx24110_writereg(state, 0x77, rv & ~0x04);
+	msleep(30); /* reportedly fixes switching problems */
 
 	rv = cx24110_readreg(state, 0x76);