BCS_CTRL
saa7146_write(dev, BCS_CTRL, 0x80400040);
val = saa7146_read(dev, BCS_CTRL);
saa7146_write(dev, BCS_CTRL, val);
val = saa7146_read(dev, BCS_CTRL);
saa7146_write(dev, BCS_CTRL, val);
val = saa7146_read(dev, BCS_CTRL);
saa7146_write(dev, BCS_CTRL, val);
saa7146_write(dev, BCS_CTRL, 0x80400040);
saa7146_write(dev, BCS_CTRL, 0x80400040);