Re: [Intel-gfx] [PATCH] drm/i915: Reject unsupported TMDS rates on ICL+

2022-03-16 Thread Kahola, Mika
> -Original Message- > From: Intel-gfx On Behalf Of Ville > Syrjala > Sent: Friday, March 11, 2022 11:29 PM > To: intel-gfx@lists.freedesktop.org > Cc: sta...@vger.kernel.org > Subject: [Intel-gfx] [PATCH] drm/i915: Reject unsupported TMDS rates on ICL+ > > Fr

[Intel-gfx] [PATCH] drm/i915: Reject unsupported TMDS rates on ICL+

2022-03-11 Thread Ville Syrjala
From: Ville Syrjälä ICL+ PLLs can't genenerate certain frequencies. Running the PLL algorithms through for all frequencies 25-594MHz we see a gap just above 500 MHz. Specifically 500-522.8MHZ for TC PLLs, and 500-533.2 MHz for combo PHY PLLs. Reject those frequencies hdmi_port_clock_valid() so th