From: "Ville Syrjälä" <ville.syrjala@linux.intel.com>
To: Vanshidhar Konda <vanshidhar.r.konda@intel.com>
Cc: intel-gfx@lists.freedesktop.org
Subject: Re: [PATCH] drm/i915/display: Reduce log level for DP command signal timeout
Date: Thu, 14 Mar 2019 20:39:11 +0200 [thread overview]
Message-ID: <20190314183911.GW3888@intel.com> (raw)
In-Reply-To: <20190314175844.GA16548@vrkonda-desk.ra.intel.com>
On Thu, Mar 14, 2019 at 10:58:49AM -0700, Vanshidhar Konda wrote:
> The log level for timeout after waiting for a signal on the DP aux
> channel control register is set to DRM_ERROR. But this is timeout not a
> fatal error as the driver is expected to retry the command. Failure
> after all retries is already captured as an error. Hence, reducing the
> log for a timeout to warning instead of error.
> ---
> drivers/gpu/drm/i915/intel_dp.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
> index 47857f96c3b1..f51e8b2ccb17 100644
> --- a/drivers/gpu/drm/i915/intel_dp.c
> +++ b/drivers/gpu/drm/i915/intel_dp.c
> @@ -1069,7 +1069,7 @@ intel_dp_aux_wait_done(struct intel_dp *intel_dp)
> trace_i915_reg_rw(false, ch_ctl, status, sizeof(status), true);
>
> if (!done)
> - DRM_ERROR("dp aux hw did not signal timeout!\n");
> + DRM_WARN("dp aux hw did not signal timeout!\n");
IIRC this indicates the hw is broken.
> #undef C
>
> return status;
> --
> 2.20.1
>
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx
--
Ville Syrjälä
Intel
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next prev parent reply other threads:[~2019-03-14 18:39 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-14 17:58 [PATCH] drm/i915/display: Reduce log level for DP command signal timeout Vanshidhar Konda
2019-03-14 18:31 ` ✗ Fi.CI.CHECKPATCH: warning for " Patchwork
2019-03-14 18:37 ` [PATCH] " Vanshidhar Konda
2019-03-14 18:39 ` Ville Syrjälä [this message]
2019-03-14 20:26 ` Vanshidhar Konda
2019-03-14 20:47 ` Ville Syrjälä
2019-03-14 21:00 ` Vanshidhar Konda
2019-03-14 21:09 ` Ville Syrjälä
2019-03-15 1:37 ` Vanshidhar Konda
2019-03-15 13:35 ` Ville Syrjälä
2019-03-15 15:59 ` Vanshidhar Konda
2019-03-14 19:08 ` ✓ Fi.CI.BAT: success for " Patchwork
2019-03-15 4:01 ` ✗ Fi.CI.IGT: failure " Patchwork
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