From: Krzysztof Kozlowski <krzk@kernel.org>
To: Yashas D <y-d@ti.com>
Cc: andrzej.hajda@intel.com, neil.armstrong@linaro.org,
rfoss@kernel.org, airlied@gmail.com, simona@ffwll.ch,
robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org,
dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, Laurent.pinchart@ideasonboard.com,
jonas@kwiboo.se, jernej.skrabec@gmail.com,
luca.ceresoli@bootlin.com, maarten.lankhorst@linux.intel.com,
mripard@kernel.org, tzimmermann@suse.de,
tomi.valkeinen@ideasonboard.com, r-ravikumar@ti.com,
sjakhade@cadence.com, yamonkar@cadence.com, u-kumar1@ti.com,
devarsht@ti.com, s-jain1@ti.com, d-mittal@ti.com,
b-padhi@ti.com
Subject: Re: [PATCH v6 1/2] dt-bindings: display: bridge: cdns,mhdp8546: Add no-hpd property to the cadence bridge
Date: Mon, 3 Aug 2026 08:43:12 +0200 [thread overview]
Message-ID: <20260803-obedient-truthful-centipede-4e5f1c@quoll> (raw)
In-Reply-To: <20260802153825.1570435-2-y-d@ti.com>
On Sun, Aug 02, 2026 at 09:08:24PM +0530, Yashas D wrote:
> From: Rahul T R <r-ravikumar@ti.com>
>
> The mhdp bridge can work without its HPD pin hooked up to the connector,
> but the current bridge driver throws an error when hpd line is not
> connected to the connector. For such cases, we need an indication for
> no-hpd, using which we can bypass the hpd detection and instead use the
> auxiliary channels connected to the DP connector to confirm the
> connection.
> So add no-hpd property to the bindings, to disable hpd when not
> connected or cannot be used for hotplug detection.
>
> Signed-off-by: Rahul T R <r-ravikumar@ti.com>
> Signed-off-by: Jayesh Choudhary <j-choudhary@ti.com>
> Signed-off-by: Yashas D <y-d@ti.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Best regards,
Krzysztof
next prev parent reply other threads:[~2026-08-03 6:43 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-02 15:38 [PATCH v6 0/2] Add no-hpd property to the cadence bridge Yashas D
2026-08-02 15:38 ` [PATCH v6 1/2] dt-bindings: display: bridge: cdns,mhdp8546: " Yashas D
2026-08-03 6:43 ` Krzysztof Kozlowski [this message]
2026-08-02 15:38 ` [PATCH v6 2/2] drm: bridge: cdns-mhdp8546: Add no-hpd property Yashas D
2026-08-02 15:55 ` sashiko-bot
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