Hello Fabio,
W dniu 28.06.2015 01:06, Fabio Estevam pisze:
Hi Maciej,
On Sat, Jun 27, 2015 at 7:51 PM, Maciej S. Szmigiero mail@maciej.szmigiero.name wrote:
Currently the AC'97 mode in fsl_ssi driver isn't functional.
Thanks for the fix. I look forward to test it on my udoo board.
Thanks.
This patch implements the following changes to make it work properly:
- IPG clock have to be enabled during AC'97 CODEC
register access,
- AC'97 DAI driver struct need the same probe method as
I2S one to setup DMA params,
- AC'97 bus can support asymmetric playback/capture rates,
- Check whether setting AC'97 ops succeeded and
clean them on removal so the driver can be reloaded,
- AC'97 CODEC will be instantiated in AC'97 mode,
- Set DAI format function small fixes in AC'97 mode.
It seems like a lot of changes in a single patch.
Care to split it into smaller pieces?
OK, I will resend this split into individual patches.
ret = clk_prepare_enable(fsl_ac97_data->clk);if (ret) {pr_err("ac97 read clk_prepare_enable failed: %d\n",ret);return -1;
'return ret' would be better here.
This function normal return value is an AC'97 register value, so isn't more appropriate to return 0xffff in case of error than linux error code?
Thanks
Best regards, Maciej Szmigiero