[Intel-gfx] [PATCH 3/4] drm/i915: Fix PCH port pipe select in CPT disable paths

Jesse Barnes jbarnes at virtuousgeek.org
Mon Aug 8 09:31:37 PDT 2011

On Sat,  6 Aug 2011 10:54:07 -0700
Keith Packard <keithp at keithp.com> wrote:

> CPT pipe select is different from previous generations (using two bits
> instead of one). All of the paths from intel_disable_pch_ports were
> not making this distinction.
> Mode setting with pipe A turned off would then also force all outputs
> on pipe B to get turned off as the disable code would mistakenly
> decide that all of these outputs were on pipe A and turn them off.
> This is an extension of the CPT DP disable fix (why didn't I fix this then?)
> Signed-off-by: Keith Packard <keithp at keithp.com>
> ---
>  drivers/gpu/drm/i915/i915_reg.h      |   13 ++-----
>  drivers/gpu/drm/i915/intel_display.c |   60 ++++++++++++++++++++++++++++++---
>  2 files changed, 58 insertions(+), 15 deletions(-)

Reviewed-by: Jesse Barnes <jbarnes at virtuousgeek.org>

Jesse Barnes, Intel Open Source Technology Center

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