On 15-05-23, 16:13, Bard Liao wrote: > From: Chao Song <chao.song@xxxxxxxxxxxxxxx> > > Start from ACE1.x, DOAISE is added to AC timing control > register bit 5, it combines with DOAIS to get effective > timing, and has the default value 1. > > The current code fills DOAIS, DACTQE and DODS bits to a > variable initialized to zero, and updates the variable > to AC timing control register. With this operation, We > change DOAISE to 0, and force a much more aggressive > timing. The timing is even unable to form a working > waveform on SDA pin on Meteorlake. > > This patch uses read-modify-write operation for the AC > timing control register access, thus makes sure those > bits not supposed and intended to change are not touched. Applied, thanks -- ~Vinod
