[Intel-gfx] [PATCH 14/26] drm/i915: Skip FDI vs. dotclock sanity check during readout

Jani Nikula jani.nikula at linux.intel.com
Wed May 25 10:58:19 UTC 2022


On Tue, 03 May 2022, Ville Syrjala <ville.syrjala at linux.intel.com> wrote:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
>
> The VBIOS/GOP may not program the FDI M/n vs. dotclock entirely
> consistently. Eg. on a SNB Thinkpad X220 LVDS I see dotclock of
> 69.286 MHz (the best the DPLL can do) vs. FDI M/N 69.3 MHz
> (matches what the EDID actually declares).
>
> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>

Reviewed-by: Jani Nikula <jani.nikula at intel.com>

> ---
>  drivers/gpu/drm/i915/display/intel_display.c | 2 --
>  1 file changed, 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
> index 1a25addadc21..86971be92e57 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -10248,8 +10248,6 @@ static void intel_modeset_readout_hw_state(struct drm_device *dev)
>  			crtc_state->min_voltage_level;
>  
>  		intel_bw_crtc_update(bw_state, crtc_state);
> -
> -		intel_pipe_config_sanity_check(dev_priv, crtc_state);
>  	}
>  }

-- 
Jani Nikula, Intel Open Source Graphics Center


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