This is my first time posting in any type of mailing list, so hopefully I'm doing this right. I recently encountered the audio trouble with I2S mode via the headphone jack on my Dell XPS 9343 as well and found your patch.
I applied the patch to the latest stable kernel (4.10) on arch linux mostly using their tools and the repeated clicking sound is fixed when no sound is playing. However, sometimes when sound is playing, the clicking returns but it's much more mild. If I pause/ resume music, for example, it might "click.. click.. click.." very quietly, but not always. It's audible when I turn the volume level down low, but overall it's much better.
I do still get somewhat loud pops when resuming music after the sound card has been idle for a while, or a pop when the card switches to an idle state.
This patch has really improved my situation though, so thank you :).