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From: Imre Deak <imre.deak@intel.com>
To: Ville Syrjala <ville.syrjala@linux.intel.com>
Cc: intel-gfx@lists.freedesktop.org
Subject: Re: [Intel-gfx] [PATCH 6/9] drm/i915: Reject DRM_MODE_FLAG_DBLCLK with DVI sinks
Date: Thu, 9 Jul 2020 14:01:19 +0300	[thread overview]
Message-ID: <20200709110119.GC16776@ideak-desk.fi.intel.com> (raw)
In-Reply-To: <20200108181242.13650-6-ville.syrjala@linux.intel.com>

On Wed, Jan 08, 2020 at 08:12:39PM +0200, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala@linux.intel.com>
> 
> The code assumes that DRM_MODE_FLAG_DBLCLK means that we enable the
> pixel repeat feature. That only works with HDMI since it requires
> AVI infoframe to signal the information to the sink. Hence even if
> the mode dotclock would be valid we cannot currently assume that
> we can just ignore the DBLCLK flag. Reject it for DVI sinks.
> 
> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>

Reviewed-by: Imre Deak <imre.deak@intel.com>

> ---
>  drivers/gpu/drm/i915/display/intel_hdmi.c | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c
> index 85c5f840a0fc..a62dd3348301 100644
> --- a/drivers/gpu/drm/i915/display/intel_hdmi.c
> +++ b/drivers/gpu/drm/i915/display/intel_hdmi.c
> @@ -2185,8 +2185,11 @@ intel_hdmi_mode_valid(struct drm_connector *connector,
>  	if (clock > max_dotclk)
>  		return MODE_CLOCK_HIGH;
>  
> -	if (mode->flags & DRM_MODE_FLAG_DBLCLK)
> +	if (mode->flags & DRM_MODE_FLAG_DBLCLK) {
> +		if (!has_hdmi_sink)
> +			return MODE_CLOCK_LOW;

MODE_H_ILLEGAL is used elsewhere for this case, and also an odd MODE_BAD
at one place.

>  		clock *= 2;
> +	}
>  
>  	if (drm_mode_is_420_only(&connector->display_info, mode))
>  		clock /= 2;
> -- 
> 2.24.1
> 
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx
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  reply	other threads:[~2020-07-09 11:01 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-08 18:12 [Intel-gfx] [PATCH 1/9] drm/i915/sdvo: Reduce the size of the on stack buffers Ville Syrjala
2020-01-08 18:12 ` [Intel-gfx] [PATCH 2/9] drm/i915: Consolidate HDMI force_dvi handling Ville Syrjala
2020-01-14 14:51   ` Jani Nikula
2020-01-08 18:12 ` [Intel-gfx] [PATCH 3/9] drm/i915/sdvo: Consolidate SDVO " Ville Syrjala
2020-01-14 14:52   ` Jani Nikula
2020-01-08 18:12 ` [Intel-gfx] [PATCH 4/9] drm/i915/sdvo: Fix SDVO colorimetry bit defines Ville Syrjala
2020-07-09  9:57   ` Imre Deak
2020-01-08 18:12 ` [Intel-gfx] [PATCH 5/9] drm/i915/sdvo: Implement limited color range for SDVO HDMI properly Ville Syrjala
2020-07-09 10:51   ` Imre Deak
2020-01-08 18:12 ` [Intel-gfx] [PATCH 6/9] drm/i915: Reject DRM_MODE_FLAG_DBLCLK with DVI sinks Ville Syrjala
2020-07-09 11:01   ` Imre Deak [this message]
2020-07-09 12:04     ` Ville Syrjälä
2020-01-08 18:12 ` [Intel-gfx] [PATCH 7/9] drm/i915/sdvo: Make SDVO deal with HDMI pixel repeat Ville Syrjala
2020-07-09 11:47   ` Imre Deak
2020-07-09 12:20     ` Ville Syrjälä
2020-01-08 18:12 ` [Intel-gfx] [PATCH 8/9] drm/i915/sdvo: Make .get_modes() return the number of modes Ville Syrjala
2020-07-09 11:51   ` Imre Deak
2020-01-08 18:12 ` [Intel-gfx] [PATCH 9/9] drm/i915/dvo: " Ville Syrjala
2020-07-09 11:52   ` Imre Deak
2020-01-09 11:27 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for series starting with [1/9] drm/i915/sdvo: Reduce the size of the on stack buffers Patchwork
2020-01-09 12:00 ` [Intel-gfx] ✗ Fi.CI.BAT: failure " Patchwork
2020-01-14 14:52 ` [Intel-gfx] [PATCH 1/9] " Jani Nikula
2020-01-16 11:26 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for series starting with [1/9] drm/i915/sdvo: Reduce the size of the on stack buffers (rev2) Patchwork
2020-01-16 11:56 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork
2020-01-16 11:56 ` [Intel-gfx] ✗ Fi.CI.BUILD: warning " Patchwork
2020-01-18 23:44 ` [Intel-gfx] ✓ Fi.CI.IGT: success " Patchwork

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