From: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
To: Jayesh Choudhary <j-choudhary@ti.com>,
dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, krzysztof.kozlowski@linaro.org
Cc: andrzej.hajda@intel.com, neil.armstrong@linaro.org,
rfoss@kernel.org, Laurent.pinchart@ideasonboard.com,
jonas@kwiboo.se, jernej.skrabec@gmail.com, airlied@gmail.com,
daniel@ffwll.ch, robh+dt@kernel.org,
krzysztof.kozlowski+dt@linaro.org, sam@ravnborg.org,
jani.nikula@intel.com, tzimmermann@suse.de, javierm@redhat.com,
ville.syrjala@linux.intel.com, r-ravikumar@ti.com,
lyude@redhat.com, alexander.deucher@amd.com,
sjakhade@cadence.com, yamonkar@cadence.com, a-bhatia1@ti.com
Subject: Re: [PATCH v2 0/2] "no-hpd" support in CDNS DP bridge driver
Date: Mon, 17 Apr 2023 11:47:39 +0300 [thread overview]
Message-ID: <b974c741-9d3e-1229-bcd5-a980035d1fb4@ideasonboard.com> (raw)
In-Reply-To: <20230405142440.191939-1-j-choudhary@ti.com>
On 05/04/2023 17:24, Jayesh Choudhary wrote:
> In J721s2 EVM, DP0 HPD is not connected to correct HPD pin on SOC
> which results in HPD detect as always connnected, so when display
> is not connected driver continuously retries to read EDID and DPCD
> registers.
Where is the DP0 HPD connected to? Nowhere? If it's connected to a pin,
can that pin be used as a GPIO? In other words, do we have a HPD, just
not with mhdp, or is there just no HPD at all?
Tomi
prev parent reply other threads:[~2023-04-17 8:48 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-05 14:24 Jayesh Choudhary
2023-04-05 14:24 ` [PATCH v2 1/2] dt-bindings: drm/bridge: Add no-hpd property Jayesh Choudhary
2023-04-06 1:40 ` Laurent Pinchart
2023-04-14 14:43 ` Jayesh Choudhary
2023-04-11 6:06 ` Krzysztof Kozlowski
2023-04-14 15:12 ` Jayesh Choudhary
2023-04-05 14:24 ` [PATCH v2 2/2] drm: bridge: cdns-mhdp8546: Add support for no-hpd Jayesh Choudhary
2023-04-06 1:52 ` Laurent Pinchart
2023-04-14 15:10 ` Jayesh Choudhary
2023-04-17 9:29 ` Tomi Valkeinen
2023-04-17 8:47 ` Tomi Valkeinen [this message]
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