linux-kernel - Re: [Intel-gfx] [PATCH 3/7] drm/i915: Treat PCH eDP like DP in most places

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <4EB17A50.6050804@redhat.com>
Date:	Wed, 02 Nov 2011 13:13:52 -0400
From:	Adam Jackson <ajax@...hat.com>
To:	Jesse Barnes <jbarnes@...tuousgeek.org>
CC:	Keith Packard <keithp@...thp.com>, intel-gfx@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org
Subject: Re: [Intel-gfx] [PATCH 3/7] drm/i915: Treat PCH eDP like DP in most
 places

On 11/2/11 12:20 PM, Jesse Barnes wrote:

> @@ -766,10 +766,10 @@ intel_dp_set_m_n(struct drm_crtc *crtc, struct drm_display_mode *mode,
>   			continue;
>
>   		intel_dp = enc_to_intel_dp(encoder);
> -		if (intel_dp->base.type == INTEL_OUTPUT_DISPLAYPORT) {
> +		if (intel_dp->base.type == INTEL_OUTPUT_DISPLAYPORT || is_pch_edp(intel_dp)) {
>   			lane_count = intel_dp->lane_count;
>   			break;
> -		} else if (is_edp(intel_dp)) {
> +		} else if (is_cpu_edp(intel_dp)) {
>   			lane_count = dev_priv->edp.lanes;
>   			break;
>   		}
>
> I guess this means we can't trust the BIOS settings for PCH eDP?

Given the choice of trusting DPCD or the VBT, I'd definitely prefer DPCD.

- ajax

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/