On 07/21/2013 02:28 PM, Lucas Stach wrote: > Different from other Tegra sound controllers drivers, the AC97 > controller driver uses the tegra asoc utils directly to request the > needed clocks, as they are needed at AC97 init time. Move the DT clock > defines to the right place.
I'm not convinced this is the correct approach. The machine driver needs to manage these clocks, so that it can co-ordinate between different audio paths. For example, consider a system that supports two different I2S paths. In HW, if both are active at once, these need to both run at a derivative of 48KHz or both run at a derivative of 44.1KHz. The machine driver is the central place that enforces that, and should eventually automatically place constraints on one stream when another is configured for a specific sample rate. By the same argument, AC'97 can't be a special case here, in case there's some system with both AC'97 and I2S hooked up. -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
