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From: Jani Nikula <jani.nikula@intel.com>
To: "Ville Syrjälä" <ville.syrjala@linux.intel.com>
Cc: intel-gfx@lists.freedesktop.org
Subject: Re: [Intel-gfx] [PATCH 8/9] drm/i915/bios: check port presence based on child device
Date: Fri, 17 Jan 2020 17:28:23 +0200	[thread overview]
Message-ID: <87d0bigl0o.fsf@intel.com> (raw)
In-Reply-To: <20200117151325.GQ13686@intel.com>

On Fri, 17 Jan 2020, Ville Syrjälä <ville.syrjala@linux.intel.com> wrote:
> On Fri, Jan 17, 2020 at 05:12:38PM +0200, Ville Syrjälä wrote:
>> On Fri, Jan 17, 2020 at 04:29:28PM +0200, Jani Nikula wrote:
>> > Affects only two calls in output setup, and ddi init will check the
>> > features in more fine grained way.
>> > 
>> > This will make future changes easier.
>> > 
>> > Signed-off-by: Jani Nikula <jani.nikula@intel.com>
>> > ---
>> >  drivers/gpu/drm/i915/display/intel_bios.c | 4 +---
>> >  1 file changed, 1 insertion(+), 3 deletions(-)
>> > 
>> > diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c
>> > index 4c69253739ec..70fb87e7afb6 100644
>> > --- a/drivers/gpu/drm/i915/display/intel_bios.c
>> > +++ b/drivers/gpu/drm/i915/display/intel_bios.c
>> > @@ -2236,9 +2236,7 @@ bool intel_bios_is_port_present(struct drm_i915_private *dev_priv, enum port por
>> >  		const struct ddi_vbt_port_info *port_info =
>> >  			&dev_priv->vbt.ddi_port_info[port];
>> >  
>> > -		return port_info->supports_dp ||
>> > -		       port_info->supports_dvi ||
>> > -		       port_info->supports_hdmi;
>> > +		return port_info->child;
>> 
>> Pondering what happens if there's a non-DP/DVI/HDMI port declared in the
>> VBT... I guess those should not have their dvo port set to anything we
>> accept?
>
> Umm, no. We accept DVO_PORT_CRT as PORT_E.

My argument is this:

- Shouldn't intel_bios_is_port_present(PORT_E) return true in that case?

- Where does the change make a functional difference in the
  intel_bios_is_port_present() users anyway? AFAICT all the cases will
  also check the supports_X flags anyway (or have checked before).


BR,
Jani.


>
>> 
>> >  	}
>> >  
>> >  	/* FIXME maybe deal with port A as well? */
>> > -- 
>> > 2.20.1
>> > 
>> > _______________________________________________
>> > Intel-gfx mailing list
>> > Intel-gfx@lists.freedesktop.org
>> > https://lists.freedesktop.org/mailman/listinfo/intel-gfx
>> 
>> -- 
>> Ville Syrjälä
>> Intel

-- 
Jani Nikula, Intel Open Source Graphics Center
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

  parent reply	other threads:[~2020-01-17 15:29 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-17 14:29 [Intel-gfx] [PATCH 0/9] drm/i915/bios: stop using vbt.ddi_port_info directly Jani Nikula
2020-01-17 14:29 ` [Intel-gfx] [PATCH 1/9] drm/i915/bios: add intel_bios_max_tmds_encoder() Jani Nikula
2020-01-17 14:43   ` Ville Syrjälä
2020-01-17 14:29 ` [Intel-gfx] [PATCH 2/9] drm/i915/bios: add intel_bios_hdmi_level_shift() Jani Nikula
2020-01-17 14:45   ` Ville Syrjälä
2020-01-17 14:29 ` [Intel-gfx] [PATCH 3/9] drm/i915/bios: intel_bios_dp_boost_level() Jani Nikula
2020-01-17 14:29 ` [Intel-gfx] [PATCH 4/9] drm/i915/bios: intel_bios_hdmi_boost_level() Jani Nikula
2020-01-17 14:29 ` [Intel-gfx] [PATCH 5/9] drm/i915/bios: add intel_bios_dp_max_link_rate() Jani Nikula
2020-01-17 14:29 ` [Intel-gfx] [PATCH 6/9] drm/i915/bios: add intel_bios_alternate_ddc_pin() Jani Nikula
2020-01-17 14:29 ` [Intel-gfx] [PATCH 7/9] drm/i915/bios: add intel_bios_port_supports_*() Jani Nikula
2020-01-17 15:10   ` Ville Syrjälä
2020-01-17 14:29 ` [Intel-gfx] [PATCH 8/9] drm/i915/bios: check port presence based on child device Jani Nikula
2020-01-17 15:12   ` Ville Syrjälä
2020-01-17 15:13     ` Ville Syrjälä
2020-01-17 15:23       ` Ville Syrjälä
2020-01-17 15:28       ` Jani Nikula [this message]
2020-01-17 15:37         ` Ville Syrjälä
2020-01-21  9:44           ` Jani Nikula
2020-01-17 14:29 ` [Intel-gfx] [PATCH 9/9] drm/i915: use intel_bios_is_port_present() Jani Nikula
2020-01-17 15:14   ` Ville Syrjälä
2020-01-17 23:44 ` [Intel-gfx] ✓ Fi.CI.BAT: success for drm/i915/bios: stop using vbt.ddi_port_info directly Patchwork
2020-01-17 23:44 ` [Intel-gfx] ✗ Fi.CI.BUILD: warning " Patchwork
2020-01-20 18:33 ` [Intel-gfx] ✓ Fi.CI.IGT: success " Patchwork

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