Reviewed-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx> On Mon, Oct 7, 2013 at 1:27 PM, Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx> wrote: > Doesn't completely fix Uli's machine, but apparently it helps a bit, so: > > Tested-by: Ulrich Drepper <drepper@xxxxxxxxx> > > On Wed, 2 Oct 2013 10:34:19 -0700 > Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx> wrote: > >> Needed to prevent display corruption in high res panels. >> >> v2: use correct unit names (Rodrigo) >> >> Signed-off-by: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx> >> --- >> drivers/gpu/drm/i915/i915_reg.h | 2 ++ >> drivers/gpu/drm/i915/intel_pm.c | 4 +++- >> 2 files changed, 5 insertions(+), 1 deletion(-) >> >> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h >> index 96fd2ce..b6312d9 100644 >> --- a/drivers/gpu/drm/i915/i915_reg.h >> +++ b/drivers/gpu/drm/i915/i915_reg.h >> @@ -4338,7 +4338,9 @@ >> #define FDI_RX_CHICKEN(pipe) _PIPE(pipe, _FDI_RXA_CHICKEN, _FDI_RXB_CHICKEN) >> >> #define SOUTH_DSPCLK_GATE_D 0xc2020 >> +#define PCH_DPLUNIT_CLOCK_GATE_DISABLE (1<<30) >> #define PCH_DPLSUNIT_CLOCK_GATE_DISABLE (1<<29) >> +#define PCH_CPUNIT_CLOCK_GATE_DISABLE (1<<14) >> #define PCH_LP_PARTITION_LEVEL_DISABLE (1<<12) >> >> /* CPU: FDI_TX */ >> diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c >> index 698257c..9443f8e 100644 >> --- a/drivers/gpu/drm/i915/intel_pm.c >> +++ b/drivers/gpu/drm/i915/intel_pm.c >> @@ -4791,7 +4791,9 @@ static void cpt_init_clock_gating(struct drm_device *dev) >> * gating for the panel power sequencer or it will fail to >> * start up when no ports are active. >> */ >> - I915_WRITE(SOUTH_DSPCLK_GATE_D, PCH_DPLSUNIT_CLOCK_GATE_DISABLE); >> + I915_WRITE(SOUTH_DSPCLK_GATE_D, PCH_DPLSUNIT_CLOCK_GATE_DISABLE | >> + PCH_DPLUNIT_CLOCK_GATE_DISABLE | >> + PCH_CPUNIT_CLOCK_GATE_DISABLE); >> I915_WRITE(SOUTH_CHICKEN2, I915_READ(SOUTH_CHICKEN2) | >> DPLS_EDP_PPS_FIX_DIS); >> /* The below fixes the weird display corruption, a few pixels shifted > > > -- > Jesse Barnes, Intel Open Source Technology Center > _______________________________________________ > Intel-gfx mailing list > Intel-gfx@xxxxxxxxxxxxxxxxxxxxx > http://lists.freedesktop.org/mailman/listinfo/intel-gfx -- Rodrigo Vivi Blog: http://blog.vivi.eng.br _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
