On Thu, Jun 21, 2018 at 10:28:33AM +0200, Takashi Iwai wrote:
On Thu, 21 Jun 2018 09:54:20 +0200, Sriram Periyasamy wrote:
On Wed, Jun 20, 2018 at 03:01:13PM +0200, Takashi Iwai wrote:
On Wed, 20 Jun 2018 13:08:21 +0200, Sriram Periyasamy wrote:
During d3/d0 cycle, the connection selection index of all pins points to the default value. This needs to be restored to ensure audio is restored after d3/d0 cycle.
So store the connection selection index and program it during jack report event which gets invoked in cases like d3/d0 cycle, hot plug detection when multiple displays are connected.
Hm, I thought *_CONNECT_SEL being cached and restored at resume already by regmap?
Yes, legacy HDA HDMI driver has this method whereas ASoC based HDAC HDMI driver doesn't use regmap. Hence we needed this solution.
If so, why not just use the standard snd_hdac_codec_write()?
Because snd_hdac_codec_write doesn't power up the device to send the verb across the link when the device is runtime suspended.
Thanks, Sriram.