V4L/DVB (7572): mt312: Fix diseqc
Correct the frequency of the emitted diseqc signal to 22kHz.
Adds sleep(100) to wait for message to be transmitted.
For now the only user of mt312 is b2c2-flexcop, and it
does overwrite all diseqc related functions with own code.
Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/dvb/frontends/mt312.c b/drivers/media/dvb/frontends/mt312.c
index b03a959..32b4194 100644
--- a/drivers/media/dvb/frontends/mt312.c
+++ b/drivers/media/dvb/frontends/mt312.c
@@ -270,7 +270,7 @@
MT312_SYS_CLK) * 2, 1000000);
/* DISEQC_RATIO */
- buf[1] = mt312_div(MT312_PLL_CLK, 15000 * 4);
+ buf[1] = mt312_div(MT312_PLL_CLK, 22000 * 4);
ret = mt312_write(state, SYS_CLK, buf, sizeof(buf));
if (ret < 0)
@@ -323,6 +323,9 @@
if (ret < 0)
return ret;
+ /* is there a better way to wait for message to be transmitted */
+ msleep(100);
+
/* set DISEQC_MODE[2:0] to zero if a return message is expected */
if (c->msg[0] & 0x02) {
ret = mt312_writereg(state, DISEQC_MODE, (diseqc_mode & 0x40));