Re: [Intel-gfx] [PATCH v2 1/2] drm/i915/bxt: Port PLL programming BUN

2015-05-11 Thread Kannan, Vandana
On 5/7/2015 2:57 PM, Imre Deak wrote: On to, 2015-05-07 at 12:00 +0530, Vandana Kannan wrote: BUN 1: prop_coeff, int_coeff, tdctargetcnt programming updated and tied to VCO frequencies. Program i_lockthresh in PORT_PLL_9. VCO calculated based on the formula: Desired Output = Port bit rate in

Re: [Intel-gfx] [PATCH v2 1/2] drm/i915/bxt: Port PLL programming BUN

2015-05-07 Thread Imre Deak
On to, 2015-05-07 at 12:00 +0530, Vandana Kannan wrote: > BUN 1: prop_coeff, int_coeff, tdctargetcnt programming updated and tied to > VCO frequencies. Program i_lockthresh in PORT_PLL_9. > > VCO calculated based on the formula: > Desired Output = Port bit rate in MHz (DisplayPort HBR2 is 5400 MHz

[Intel-gfx] [PATCH v2 1/2] drm/i915/bxt: Port PLL programming BUN

2015-05-06 Thread Vandana Kannan
BUN 1: prop_coeff, int_coeff, tdctargetcnt programming updated and tied to VCO frequencies. Program i_lockthresh in PORT_PLL_9. VCO calculated based on the formula: Desired Output = Port bit rate in MHz (DisplayPort HBR2 is 5400 MHz) Fast Clock = Desired Output / 2 VCO = Fast Clock * P1 * P2 Prop