Kernel Labs

Until now, we’ve been leaving the slave tuner output and clock outputs of the TDA18271 tuner enabled at all times, even while in standby mode. I’ve added a new configuration option to describe which output features are allowed to be disabled when the device enters low power standby mode. I’ve also fixed a major issue that only affects hybrid analog / digital tuner devices. After these changes, the driver will check for non-default settings at the time of attach, and ensure that that the appropriate configuration is set.

In certain master / slave dual tuner configurations, tuning performance improves when the RF tracking filter calibration is performed in a specific order. I created a new attach-time configuration option that allows for the bridge driver to request for the RF tracking filter calibration to occur at startup.