This is a note to let you know that I've just added the patch titled
media: m88rs2000: prevent frontend crash on continuous transponder scans
to the 3.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
media-m88rs2000-prevent-frontend-crash-on-continuous-transponder-scans.patch
and it can be found in the queue-3.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 8272d0a0c0d374a01721e579df6e8add5577132b Mon Sep 17 00:00:00 2001
From: Malcolm Priestley <tvboxspy@xxxxxxxxx>
Date: Tue, 25 Feb 2014 23:11:34 -0300
Subject: media: m88rs2000: prevent frontend crash on continuous transponder scans
From: Malcolm Priestley <tvboxspy@xxxxxxxxx>
commit 8272d0a0c0d374a01721e579df6e8add5577132b upstream.
Add m88rs2000_get_tune_settings, min delay of 2000 ms on symbol
rate more than 3000000 and delay of 3000ms less than this.
Adding min delay prevents crashing the frontend on continuous
transponder scans. Other dvb_frontend_tune_settings remain as default.
This makes very little time difference to good channel scans, but slows down
the set frontend where lock can never be achieved i.e. DVB-S2.
Signed-off-by: Malcolm Priestley <tvboxspy@xxxxxxxxx>
Signed-off-by: Michael Krufky <mkrufky@xxxxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/media/dvb-frontends/m88rs2000.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
--- a/drivers/media/dvb-frontends/m88rs2000.c
+++ b/drivers/media/dvb-frontends/m88rs2000.c
@@ -712,6 +712,22 @@ static int m88rs2000_get_frontend(struct
return 0;
}
+static int m88rs2000_get_tune_settings(struct dvb_frontend *fe,
+ struct dvb_frontend_tune_settings *tune)
+{
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+
+ if (c->symbol_rate > 3000000)
+ tune->min_delay_ms = 2000;
+ else
+ tune->min_delay_ms = 3000;
+
+ tune->step_size = c->symbol_rate / 16000;
+ tune->max_drift = c->symbol_rate / 2000;
+
+ return 0;
+}
+
static int m88rs2000_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
{
struct m88rs2000_state *state = fe->demodulator_priv;
@@ -763,6 +779,7 @@ static struct dvb_frontend_ops m88rs2000
.set_frontend = m88rs2000_set_frontend,
.get_frontend = m88rs2000_get_frontend,
+ .get_tune_settings = m88rs2000_get_tune_settings,
};
struct dvb_frontend *m88rs2000_attach(const struct m88rs2000_config *config,
Patches currently in stable-queue which might be from tvboxspy@xxxxxxxxx are
queue-3.10/media-m88rs2000-prevent-frontend-crash-on-continuous-transponder-scans.patch
queue-3.10/media-m88rs2000-add-caps-fe_can_inversion_auto.patch
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