| Message ID | 558FFAC4.2060608@maciej.szmigiero.name (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
Maciej S. Szmigiero wrote: > /* Are the RX and the TX clocks locked? */ > if (!of_find_property(np, "fsl,ssi-asynchronous", NULL)) { > - ssi_private->cpu_dai_drv.symmetric_rates = 1; > + if (!fsl_ssi_is_ac97(ssi_private)) > + ssi_private->cpu_dai_drv.symmetric_rates = 1; > + Is this necessary? Why not just add fsl,ssi-asynchronous to the AC97 device tree node?
W dniu 28.06.2015 16:01, Timur Tabi pisze: > Maciej S. Szmigiero wrote: >> /* Are the RX and the TX clocks locked? */ >> if (!of_find_property(np, "fsl,ssi-asynchronous", NULL)) { >> - ssi_private->cpu_dai_drv.symmetric_rates = 1; >> + if (!fsl_ssi_is_ac97(ssi_private)) >> + ssi_private->cpu_dai_drv.symmetric_rates = 1; >> + > > Is this necessary? Why not just add fsl,ssi-asynchronous to the AC97 device tree node? Because in the AC'97 mode the driver supports only one channel config and one sample format anyway the remaining settings controlled by this property don't do anything. Since it should be safe to enable asymmetric rates with any AC'97 CODEC I think it is good to do it in driver than to add "fsl,ssi-asynchronous" to every AC'97 DT node. Also the description of this property in fsl,ssi.txt looks like that it only makes sense in non-AC'97 mode. Best regards, Maciej Szmigiero
diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c index 2ce9e1d..f3034b9 100644 --- a/sound/soc/fsl/fsl_ssi.c +++ b/sound/soc/fsl/fsl_ssi.c @@ -1377,7 +1377,9 @@ static int fsl_ssi_probe(struct platform_device *pdev) /* Are the RX and the TX clocks locked? */ if (!of_find_property(np, "fsl,ssi-asynchronous", NULL)) { - ssi_private->cpu_dai_drv.symmetric_rates = 1; + if (!fsl_ssi_is_ac97(ssi_private)) + ssi_private->cpu_dai_drv.symmetric_rates = 1; + ssi_private->cpu_dai_drv.symmetric_channels = 1; ssi_private->cpu_dai_drv.symmetric_samplebits = 1; }
AC'97 bus can support asymmetric playback/capture rates so enable them in this case in fsl_ssi driver. Signed-off-by: Maciej Szmigiero <mail@maciej.szmigiero.name> --- sound/soc/fsl/fsl_ssi.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-)