[PATCH] DVB Optimization: enable gate in a symmetric/disciplined way,rather than implementing different ways leading to confusion.

From: Manu Abraham
Date: Thu Sep 04 2008 - 08:36:16 EST


This allows multiple gate_enable/disable's in the tuner read/write
functions, thereby lesser number of I/O operations throughout,
eventually leading to better results. As a side effect for the demods
that detect the STOP bit for auto closing, the auto closing of the
gate can be avoided, thereby a minimal gain in disabling the auto detect
feature as well. Improves readability on the device control.

From: Manu Abraham <abraham.manu@xxxxxxxxx>
Signed-off-by: Manu Abraham <manu@xxxxxxxxxxx>

diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c
index c54b12c..e2d929e 100644
--- a/drivers/media/dvb/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb/dvb-core/dvb_frontend.c
@@ -733,6 +733,8 @@ static void dvb_frontend_init(struct dvb_frontend *fe)
if (fe->ops.init)
fe->ops.init(fe);
if (fe->ops.tuner_ops.init) {
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 1);
fe->ops.tuner_ops.init(fe);
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 0);

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