On Sun, Jun 15, 2014 at 02:55:42PM +0200, Daniel Vetter wrote:
> It changes at runtime and so should be ignored for pipe state checks.
> Note that we don't yet read out the full DRRS state, so there's some
> gaps. Bu DRRS is also not yet enabled for LVDS by default.
>
> Cc: Aleks <aleks@xxxxxxxxxxxxxxxxxxxxxx>
> Reported-by: Aleks <aleks@xxxxxxxxxxxxxxxxxxxxxx>
> Cc: stable@xxxxxxxxxxxxxxx
> Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
> ---
> drivers/gpu/drm/i915/intel_display.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> index ba1d9aac3958..1ccf660e67d9 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -8549,6 +8549,9 @@ static void i9xx_crtc_clock_get(struct intel_crtc *crtc,
> else
> fp = pipe_config->dpll_hw_state.fp1;
>
> + /* We don't compute the FPA 0/1 selector. */
> + dpll &= ~DISPLAY_RATE_SELECT_FPA1;
> +
But we still compute port_clock based on the currently active FPA
register. Won't that make the clock checks fail as well?
> clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT;
> if (IS_PINEVIEW(dev)) {
> clock.n = ffs((fp & FP_N_PINEVIEW_DIV_MASK) >> FP_N_DIV_SHIFT) - 1;
> --
> 2.0.0
>
> _______________________________________________
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> Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
--
Ville Syrjälä
Intel OTC
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