On Wed, Jul 17, 2019 at 1:30 PM Oleksandr Suvorov <oleksandr.suvorov@xxxxxxxxxxx> wrote: > > Change VAG power on/off control according to the following algorithm: > - turn VAG power ON on the 1st incoming event. > - keep it ON if there is any active VAG consumer (ADC/DAC/HP/Line-In). > - turn VAG power OFF when there is the latest consumer's pre-down event > come. > - always delay after VAG power OFF to avoid pop. > - delay after VAG power ON if the initiative consumer is Line-In, this > prevents pop during line-in muxing. > > Also, according to the data sheet [1], to avoid any pops/clicks, > the outputs should be muted during input/output > routing changes. > > [1] https://www.nxp.com/docs/en/data-sheet/SGTL5000.pdf > > Signed-off-by: Oleksandr Suvorov <oleksandr.suvorov@xxxxxxxxxxx> > Reviewed-by: Marcel Ziswiler <marcel.ziswiler@xxxxxxxxxxx> > Fixes: 9b34e6cc3bc2 ("ASoC: Add Freescale SGTL5000 codec support") Reviewed-by: Fabio Estevam <festevam@xxxxxxxxx> By the way, I prefer the description you put in the cover letter as it explicitly talks about a bug being fixed. _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx https://mailman.alsa-project.org/mailman/listinfo/alsa-devel
