Re: [PATCH] x86: i8237: Register based on FADT legacy boot flag

2018-03-13 Thread Andy Shevchenko
On Tue, 2018-03-13 at 16:29 +0530, Rajneesh Bhardwaj wrote: > From Skylake onwards, the platform controller hub (Sunrisepoint PCH) > does > not support legacy DMA operations to IO ports 81h-83h, 87h, 89h-8Bh, > 8Fh. > Currently this driver registers as syscore ops and its resume function > is > cal

[PATCH] x86: i8237: Register based on FADT legacy boot flag

2018-03-13 Thread Rajneesh Bhardwaj
>From Skylake onwards, the platform controller hub (Sunrisepoint PCH) does not support legacy DMA operations to IO ports 81h-83h, 87h, 89h-8Bh, 8Fh. Currently this driver registers as syscore ops and its resume function is called on every resume from S3. On Skylake and Kabylake, this causes a resum