From: Jani Nikula <jani.nikula@linux.intel.com>
To: Ville Syrjala <ville.syrjala@linux.intel.com>,
intel-gfx@lists.freedesktop.org
Subject: Re: [Intel-gfx] [PATCH 3/5] drm/i915: Disable LTTPR detection on GLK once again
Date: Wed, 14 Apr 2021 12:19:44 +0300 [thread overview]
Message-ID: <87im4pfcjz.fsf@intel.com> (raw)
In-Reply-To: <20210412054607.18133-4-ville.syrjala@linux.intel.com>
On Mon, 12 Apr 2021, Ville Syrjala <ville.syrjala@linux.intel.com> wrote:
> From: Ville Syrjälä <ville.syrjala@linux.intel.com>
>
> The glk display version change is causing us to again attempt
> LTTPR detection on glk. We must not do tha since glk doesn't
> have a long enough AUX timeout. Restore the correct logic to
> skip the detection.
>
> Cc: Matt Roper <matthew.d.roper@intel.com>
> Fixes: 2b5a4562edd0 ("drm/i915/display: Simplify GLK display version tests")
> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
> ---
> drivers/gpu/drm/i915/display/intel_dp_link_training.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_training.c b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
> index 5e9c3c74310c..597634e4f35f 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
> @@ -96,7 +96,7 @@ static bool intel_dp_read_lttpr_common_caps(struct intel_dp *intel_dp)
> * Detecting LTTPRs must be avoided on platforms with an AUX timeout
> * period < 3.2ms. (see DP Standard v2.0, 2.11.2, 3.6.6.1).
> */
> - if (DISPLAY_VER(i915) < 10)
> + if (DISPLAY_VER(i915) < 10 || IS_GEMINILAKE(i915))
> return false;
>
> if (drm_dp_read_lttpr_common_caps(&intel_dp->aux,
--
Jani Nikula, Intel Open Source Graphics Center
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next prev parent reply other threads:[~2021-04-14 9:19 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-12 5:46 [Intel-gfx] [PATCH 0/5] drm/i915: Fix glk display version regressions Ville Syrjala
2021-04-12 5:46 ` [Intel-gfx] [PATCH 1/5] drm/i915: Restore lost glk FBC 16bpp w/a Ville Syrjala
2021-04-14 9:14 ` Jani Nikula
2021-04-14 9:17 ` Jani Nikula
2021-04-12 5:46 ` [Intel-gfx] [PATCH 2/5] drm/i915: Restore lost glk ccs w/a Ville Syrjala
2021-04-14 9:18 ` Jani Nikula
2021-04-12 5:46 ` [Intel-gfx] [PATCH 3/5] drm/i915: Disable LTTPR detection on GLK once again Ville Syrjala
2021-04-14 9:19 ` Jani Nikula [this message]
2021-04-12 5:46 ` [Intel-gfx] [PATCH 4/5] drm/i915: Don't use {skl, cnl}_hpd_pin() for bxt/glk Ville Syrjala
2021-04-14 9:25 ` Jani Nikula
2021-04-12 5:46 ` [Intel-gfx] [PATCH 5/5] drm/i915: Remove a few redundant glk checks Ville Syrjala
2021-04-14 9:26 ` Jani Nikula
2021-04-12 6:18 ` [Intel-gfx] ✗ Fi.CI.DOCS: warning for drm/i915: Fix glk display version regressions Patchwork
2021-04-12 6:40 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork
2021-04-12 7:53 ` [Intel-gfx] ✓ Fi.CI.IGT: " Patchwork
2021-04-13 10:57 ` [Intel-gfx] [PATCH 0/5] " Jani Nikula
2021-04-14 9:34 ` Jani Nikula
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