[Intel-gfx] [PATCH v2 2/8] drm/i915/dp: Remove debug dependency of DPCD SW/HW revision read
Jani Nikula
jani.nikula at linux.intel.com
Mon Oct 24 17:11:05 UTC 2016
On Mon, 24 Oct 2016, Imre Deak <imre.deak at intel.com> wrote:
> Performing DPCD AUX reads based on debug settings may introduce obscure
> bugs in other places that depend on the read being done (or being not
> done). To reduce the uncertainty perform the reads unconditionally.
>
> Cc: Mika Kahola <mika.kahola at intel.com>
> Suggested-by: Jani Nikula <jani.nikula at intel.com>
> Signed-off-by: Imre Deak <imre.deak at intel.com>
Reviewed-by: Jani Nikula <jani.nikula at intel.com>
> ---
> drivers/gpu/drm/i915/intel_dp.c | 6 ------
> 1 file changed, 6 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
> index 3c2293b..1c1a8c8 100644
> --- a/drivers/gpu/drm/i915/intel_dp.c
> +++ b/drivers/gpu/drm/i915/intel_dp.c
> @@ -1456,9 +1456,6 @@ static void intel_dp_print_hw_revision(struct intel_dp *intel_dp)
> uint8_t rev;
> int len;
>
> - if ((drm_debug & DRM_UT_KMS) == 0)
> - return;
> -
> if (!drm_dp_is_branch(intel_dp->dpcd))
> return;
>
> @@ -1474,9 +1471,6 @@ static void intel_dp_print_sw_revision(struct intel_dp *intel_dp)
> uint8_t rev[2];
> int len;
>
> - if ((drm_debug & DRM_UT_KMS) == 0)
> - return;
> -
> if (!drm_dp_is_branch(intel_dp->dpcd))
> return;
--
Jani Nikula, Intel Open Source Technology Center
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