From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
To: Parshuram Raju Thombare <pthombar@cadence.com>
Cc: "robert.foss@linaro.org" <robert.foss@linaro.org>,
"robh+dt@kernel.org" <robh+dt@kernel.org>,
"airlied@linux.ie" <airlied@linux.ie>,
"daniel@ffwll.ch" <daniel@ffwll.ch>,
"dri-devel@lists.freedesktop.org"
<dri-devel@lists.freedesktop.org>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"a.hajda@samsung.com" <a.hajda@samsung.com>,
"narmstrong@baylibre.com" <narmstrong@baylibre.com>,
"nikhil.nd@ti.com" <nikhil.nd@ti.com>,
"kishon@ti.com" <kishon@ti.com>,
Swapnil Kashinath Jakhade <sjakhade@cadence.com>,
Milind Parab <mparab@cadence.com>
Subject: Re: [PATCH v2 1/2] dt-bindings: drm/bridge: MHDP8546 bridge binding changes for HDCP
Date: Mon, 1 Mar 2021 18:27:44 +0200 [thread overview]
Message-ID: <YD0WAMySrv53lxFR@pendragon.ideasonboard.com> (raw)
In-Reply-To: <DM5PR07MB319661E8BFEB251CE17AF587C19A9@DM5PR07MB3196.namprd07.prod.outlook.com>
Hi Parshuram,
On Mon, Mar 01, 2021 at 04:14:54PM +0000, Parshuram Raju Thombare wrote:
> Hi Laurent,
>
> > Is this a property of the hardware, that is, are there multiple versions
> > of this IP core covered by the same compatible string that support HDCP
> > 1.4 only, DHCP 2.2 only or both ? Or is it a way to select what a given
> > system will offer ?[]
>
> MHDP hardware supports both HDCP 2.2 and 1.4. So, this is a way
> to select the version of HDCP, system wish to support.
Then I'm not sure this qualifies as a DT property, which should describe
the system, not configure it. A way for userspace to configure this
would be better.
--
Regards,
Laurent Pinchart
WARNING: multiple messages have this Message-ID (diff)
From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
To: Parshuram Raju Thombare <pthombar@cadence.com>
Cc: "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"narmstrong@baylibre.com" <narmstrong@baylibre.com>,
"airlied@linux.ie" <airlied@linux.ie>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"dri-devel@lists.freedesktop.org"
<dri-devel@lists.freedesktop.org>,
"kishon@ti.com" <kishon@ti.com>,
"a.hajda@samsung.com" <a.hajda@samsung.com>,
"robh+dt@kernel.org" <robh+dt@kernel.org>,
"robert.foss@linaro.org" <robert.foss@linaro.org>,
Swapnil Kashinath Jakhade <sjakhade@cadence.com>,
"nikhil.nd@ti.com" <nikhil.nd@ti.com>,
Milind Parab <mparab@cadence.com>
Subject: Re: [PATCH v2 1/2] dt-bindings: drm/bridge: MHDP8546 bridge binding changes for HDCP
Date: Mon, 1 Mar 2021 18:27:44 +0200 [thread overview]
Message-ID: <YD0WAMySrv53lxFR@pendragon.ideasonboard.com> (raw)
In-Reply-To: <DM5PR07MB319661E8BFEB251CE17AF587C19A9@DM5PR07MB3196.namprd07.prod.outlook.com>
Hi Parshuram,
On Mon, Mar 01, 2021 at 04:14:54PM +0000, Parshuram Raju Thombare wrote:
> Hi Laurent,
>
> > Is this a property of the hardware, that is, are there multiple versions
> > of this IP core covered by the same compatible string that support HDCP
> > 1.4 only, DHCP 2.2 only or both ? Or is it a way to select what a given
> > system will offer ?[]
>
> MHDP hardware supports both HDCP 2.2 and 1.4. So, this is a way
> to select the version of HDCP, system wish to support.
Then I'm not sure this qualifies as a DT property, which should describe
the system, not configure it. A way for userspace to configure this
would be better.
--
Regards,
Laurent Pinchart
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
next prev parent reply other threads:[~2021-03-01 17:35 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-01 11:21 [PATCH v2 0/2] enable HDCP in Cadence MHDP bridge driver Parshuram Thombare
2021-03-01 11:21 ` Parshuram Thombare
2021-03-01 11:22 ` [PATCH v2 1/2] dt-bindings: drm/bridge: MHDP8546 bridge binding changes for HDCP Parshuram Thombare
2021-03-01 11:22 ` Parshuram Thombare
2021-03-01 15:41 ` Laurent Pinchart
2021-03-01 15:41 ` Laurent Pinchart
2021-03-01 16:14 ` Parshuram Raju Thombare
2021-03-01 16:14 ` Parshuram Raju Thombare
2021-03-01 16:27 ` Laurent Pinchart [this message]
2021-03-01 16:27 ` Laurent Pinchart
2021-03-02 12:53 ` Parshuram Raju Thombare
2021-03-02 12:53 ` Parshuram Raju Thombare
2021-03-08 20:42 ` Laurent Pinchart
2021-03-08 20:42 ` Laurent Pinchart
2021-03-09 8:02 ` Parshuram Raju Thombare
2021-03-09 8:02 ` Parshuram Raju Thombare
2021-03-08 17:36 ` Rob Herring
2021-03-08 17:36 ` Rob Herring
2021-03-09 15:35 ` Parshuram Raju Thombare
2021-03-09 15:35 ` Parshuram Raju Thombare
2021-03-01 11:23 ` [PATCH v2 2/2] drm: bridge: cdns-mhdp8546: Enable HDCP Parshuram Thombare
2021-03-01 11:23 ` Parshuram Thombare
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