linux-kernel - Re: [PATCH 3/3] drm/omap: displays: encoder-tpd12s015: Support for hot plug detection

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Message-ID: <7be9f55e-7d81-d9c8-9e30-1ddc284137e3@ti.com>
Date:   Tue, 23 May 2017 13:25:34 +0300
From:   Tomi Valkeinen <tomi.valkeinen@...com>
To:     Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Peter Ujfalusi <peter.ujfalusi@...com>
CC:     <airlied@...ux.ie>, <jsarha@...com>,
        <dri-devel@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 3/3] drm/omap: displays: encoder-tpd12s015: Support for
 hot plug detection

On 23/05/17 12:48, Laurent Pinchart wrote:

> As the connector code can handle GPIO HPD thanks to patch 2/3, why does it 
> have to be duplicated here ? I agree that encoders should support reporting of 
> hotplug events when the HPD signal is connected to an encoder, but if it's 
> connected to a GPIO, it seems to me that it should be the sole responsibility 
> of the connector code to handle it.

The HPD line goes from the connector to TPD12S015. From TPD12S015
another line goes to the SoCs GPIO.

 Tomi



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