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From: Andrzej Hajda <a.hajda@samsung.com>
To: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
	<devicetree@vger.kernel.org>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
	Marek Szyprowski <m.szyprowski@samsung.com>,
	dri-devel@lists.freedesktop.org, Inki Dae <inki.dae@samsung.com>,
	Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Krzysztof Kozlowski <krzk@kernel.org>,
	Chanwoo Choi <cw00.choi@samsung.com>,
	Archit Taneja <architt@codeaurora.org>,
	Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-samsung-soc@vger.kernel.org, linux-usb@vger.kernel.org
Subject: Re: [PATCH v5 1/6] dt-bindings: add bindings for USB physical connector
Date: Mon, 5 Mar 2018 09:18:10 +0100	[thread overview]
Message-ID: <8434f820-5016-1e5a-c3cb-5d7789dd69c1@samsung.com> (raw)
In-Reply-To: <20180302131315.GA10598@kuha.fi.intel.com>

On 02.03.2018 14:13, Heikki Krogerus wrote:
> Hi,
>
> On Tue, Feb 27, 2018 at 08:11:29AM +0100, Andrzej Hajda wrote:
>> +2. USB-C connector attached to CC controller (s2mm005), HS lines routed
>> +to companion PMIC (max77865), SS lines to USB3 PHY and SBU to DisplayPort.
>> +DisplayPort video lines are routed to the connector via SS mux in USB3 PHY.
>> +
>> +ccic: s2mm005@33 {
>> +	...
>> +	usb_con: connector {
>> +		compatible = "usb-c-connector";
>> +		label = "USB-C";
> Is this child node really necessary? There will never be more then
> one connector per CC line.

But there can be more connectors/cc-lines per IC, for example EZ-PD CCG5[1].

[1]:
http://www.cypress.com/products/ez-pd-ccg5-two-port-usb-type-c-and-power-delivery

>
> We should prefer device_graph* functions over of_graph* and
I guess you mean fwnode_graph* functions.
> acpi_graph* functions in the drivers so we don't have to handle the
> same thing multiple times with separate APIs. Is it still possible if
> there is that connector child node?

Bindings proposed here are OF bindings, I suppose the most important is
to follow OF specification and guidelines and these bindings tries to
follow it.
It looks like it should not be a problem for fwnode framework to handle
such bindings, but it is just my guess. I have not seen any fwnode*
specification I am not sure what is the real purpose of this framework,
but it seems to be just in-kernel abstraction for different firmware
standards (OF, ACPI), so even if it lacks at the moment some
functionality it should not be a barrier for OF bindings.

Regards
Andrzej

>
>> +		ports {
>> +			#address-cells = <1>;
>> +			#size-cells = <0>;
>> +
>> +			port@0 {
>> +				reg = <0>;
>> +				usb_con_hs: endpoint {
>> +					remote-endpoint = <&max77865_usbc_hs>;
>> +				};
>> +			};
>> +			port@1 {
>> +				reg = <1>;
>> +				usb_con_ss: endpoint {
>> +					remote-endpoint = <&usbdrd_phy_ss>;
>> +				};
>> +			};
>> +			port@2 {
>> +				reg = <2>;
>> +				usb_con_sbu: endpoint {
>> +					remote-endpoint = <&dp_aux>;
>> +				};
>> +			};
>> +		};
>> +	};
>> +};
>
> Thanks,
>


WARNING: multiple messages have this Message-ID (diff)
From: Andrzej Hajda <a.hajda@samsung.com>
To: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
	"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
	<devicetree@vger.kernel.org>,
	linux-samsung-soc@vger.kernel.org,
	Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
	linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
	dri-devel@lists.freedesktop.org,
	Chanwoo Choi <cw00.choi@samsung.com>,
	Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzk@kernel.org>,
	linux-arm-kernel@lists.infradead.org,
	Marek Szyprowski <m.szyprowski@samsung.com>
Subject: Re: [PATCH v5 1/6] dt-bindings: add bindings for USB physical connector
Date: Mon, 5 Mar 2018 09:18:10 +0100	[thread overview]
Message-ID: <8434f820-5016-1e5a-c3cb-5d7789dd69c1@samsung.com> (raw)
In-Reply-To: <20180302131315.GA10598@kuha.fi.intel.com>

On 02.03.2018 14:13, Heikki Krogerus wrote:
> Hi,
>
> On Tue, Feb 27, 2018 at 08:11:29AM +0100, Andrzej Hajda wrote:
>> +2. USB-C connector attached to CC controller (s2mm005), HS lines routed
>> +to companion PMIC (max77865), SS lines to USB3 PHY and SBU to DisplayPort.
>> +DisplayPort video lines are routed to the connector via SS mux in USB3 PHY.
>> +
>> +ccic: s2mm005@33 {
>> +	...
>> +	usb_con: connector {
>> +		compatible = "usb-c-connector";
>> +		label = "USB-C";
> Is this child node really necessary? There will never be more then
> one connector per CC line.

But there can be more connectors/cc-lines per IC, for example EZ-PD CCG5[1].

[1]:
http://www.cypress.com/products/ez-pd-ccg5-two-port-usb-type-c-and-power-delivery

>
> We should prefer device_graph* functions over of_graph* and
I guess you mean fwnode_graph* functions.
> acpi_graph* functions in the drivers so we don't have to handle the
> same thing multiple times with separate APIs. Is it still possible if
> there is that connector child node?

Bindings proposed here are OF bindings, I suppose the most important is
to follow OF specification and guidelines and these bindings tries to
follow it.
It looks like it should not be a problem for fwnode framework to handle
such bindings, but it is just my guess. I have not seen any fwnode*
specification I am not sure what is the real purpose of this framework,
but it seems to be just in-kernel abstraction for different firmware
standards (OF, ACPI), so even if it lacks at the moment some
functionality it should not be a barrier for OF bindings.

Regards
Andrzej

>
>> +		ports {
>> +			#address-cells = <1>;
>> +			#size-cells = <0>;
>> +
>> +			port@0 {
>> +				reg = <0>;
>> +				usb_con_hs: endpoint {
>> +					remote-endpoint = <&max77865_usbc_hs>;
>> +				};
>> +			};
>> +			port@1 {
>> +				reg = <1>;
>> +				usb_con_ss: endpoint {
>> +					remote-endpoint = <&usbdrd_phy_ss>;
>> +				};
>> +			};
>> +			port@2 {
>> +				reg = <2>;
>> +				usb_con_sbu: endpoint {
>> +					remote-endpoint = <&dp_aux>;
>> +				};
>> +			};
>> +		};
>> +	};
>> +};
>
> Thanks,
>

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

WARNING: multiple messages have this Message-ID (diff)
From: Andrzej Hajda <a.hajda@samsung.com>
To: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
	<devicetree@vger.kernel.org>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
	Marek Szyprowski <m.szyprowski@samsung.com>,
	dri-devel@lists.freedesktop.org, Inki Dae <inki.dae@samsung.com>,
	Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Krzysztof Kozlowski <krzk@kernel.org>,
	Chanwoo Choi <cw00.choi@samsung.com>,
	Archit Taneja <architt@codeaurora.org>,
	Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-samsung-soc@vger.kernel.org, linux-usb@vger.kernel.org
Subject: [v5,1/6] dt-bindings: add bindings for USB physical connector
Date: Mon, 5 Mar 2018 09:18:10 +0100	[thread overview]
Message-ID: <8434f820-5016-1e5a-c3cb-5d7789dd69c1@samsung.com> (raw)

On 02.03.2018 14:13, Heikki Krogerus wrote:
> Hi,
>
> On Tue, Feb 27, 2018 at 08:11:29AM +0100, Andrzej Hajda wrote:
>> +2. USB-C connector attached to CC controller (s2mm005), HS lines routed
>> +to companion PMIC (max77865), SS lines to USB3 PHY and SBU to DisplayPort.
>> +DisplayPort video lines are routed to the connector via SS mux in USB3 PHY.
>> +
>> +ccic: s2mm005@33 {
>> +	...
>> +	usb_con: connector {
>> +		compatible = "usb-c-connector";
>> +		label = "USB-C";
> Is this child node really necessary? There will never be more then
> one connector per CC line.

But there can be more connectors/cc-lines per IC, for example EZ-PD CCG5[1].

[1]:
http://www.cypress.com/products/ez-pd-ccg5-two-port-usb-type-c-and-power-delivery

>
> We should prefer device_graph* functions over of_graph* and
I guess you mean fwnode_graph* functions.
> acpi_graph* functions in the drivers so we don't have to handle the
> same thing multiple times with separate APIs. Is it still possible if
> there is that connector child node?

Bindings proposed here are OF bindings, I suppose the most important is
to follow OF specification and guidelines and these bindings tries to
follow it.
It looks like it should not be a problem for fwnode framework to handle
such bindings, but it is just my guess. I have not seen any fwnode*
specification I am not sure what is the real purpose of this framework,
but it seems to be just in-kernel abstraction for different firmware
standards (OF, ACPI), so even if it lacks at the moment some
functionality it should not be a barrier for OF bindings.

Regards
Andrzej

>
>> +		ports {
>> +			#address-cells = <1>;
>> +			#size-cells = <0>;
>> +
>> +			port@0 {
>> +				reg = <0>;
>> +				usb_con_hs: endpoint {
>> +					remote-endpoint = <&max77865_usbc_hs>;
>> +				};
>> +			};
>> +			port@1 {
>> +				reg = <1>;
>> +				usb_con_ss: endpoint {
>> +					remote-endpoint = <&usbdrd_phy_ss>;
>> +				};
>> +			};
>> +			port@2 {
>> +				reg = <2>;
>> +				usb_con_sbu: endpoint {
>> +					remote-endpoint = <&dp_aux>;
>> +				};
>> +			};
>> +		};
>> +	};
>> +};
>
> Thanks,
>
---
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WARNING: multiple messages have this Message-ID (diff)
From: a.hajda@samsung.com (Andrzej Hajda)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v5 1/6] dt-bindings: add bindings for USB physical connector
Date: Mon, 5 Mar 2018 09:18:10 +0100	[thread overview]
Message-ID: <8434f820-5016-1e5a-c3cb-5d7789dd69c1@samsung.com> (raw)
In-Reply-To: <20180302131315.GA10598@kuha.fi.intel.com>

On 02.03.2018 14:13, Heikki Krogerus wrote:
> Hi,
>
> On Tue, Feb 27, 2018 at 08:11:29AM +0100, Andrzej Hajda wrote:
>> +2. USB-C connector attached to CC controller (s2mm005), HS lines routed
>> +to companion PMIC (max77865), SS lines to USB3 PHY and SBU to DisplayPort.
>> +DisplayPort video lines are routed to the connector via SS mux in USB3 PHY.
>> +
>> +ccic: s2mm005 at 33 {
>> +	...
>> +	usb_con: connector {
>> +		compatible = "usb-c-connector";
>> +		label = "USB-C";
> Is this child node really necessary? There will never be more then
> one connector per CC line.

But there can be more connectors/cc-lines per IC, for example EZ-PD CCG5[1].

[1]:
http://www.cypress.com/products/ez-pd-ccg5-two-port-usb-type-c-and-power-delivery

>
> We should prefer device_graph* functions over of_graph* and
I guess you mean fwnode_graph* functions.
> acpi_graph* functions in the drivers so we don't have to handle the
> same thing multiple times with separate APIs. Is it still possible if
> there is that connector child node?

Bindings proposed here are OF bindings, I suppose the most important is
to follow OF specification and guidelines and these bindings tries to
follow it.
It looks like it should not be a problem for fwnode framework to handle
such bindings, but it is just my guess. I have not seen any fwnode*
specification I am not sure what is the real purpose of this framework,
but it seems to be just in-kernel abstraction for different firmware
standards (OF, ACPI), so even if it lacks at the moment some
functionality it should not be a barrier for OF bindings.

Regards
Andrzej

>
>> +		ports {
>> +			#address-cells = <1>;
>> +			#size-cells = <0>;
>> +
>> +			port at 0 {
>> +				reg = <0>;
>> +				usb_con_hs: endpoint {
>> +					remote-endpoint = <&max77865_usbc_hs>;
>> +				};
>> +			};
>> +			port at 1 {
>> +				reg = <1>;
>> +				usb_con_ss: endpoint {
>> +					remote-endpoint = <&usbdrd_phy_ss>;
>> +				};
>> +			};
>> +			port at 2 {
>> +				reg = <2>;
>> +				usb_con_sbu: endpoint {
>> +					remote-endpoint = <&dp_aux>;
>> +				};
>> +			};
>> +		};
>> +	};
>> +};
>
> Thanks,
>

  reply	other threads:[~2018-03-05  8:18 UTC|newest]

Thread overview: 124+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CGME20180227071137eucas1p104aeeb0fd926fe985e250174d9d65b2e@eucas1p1.samsung.com>
2018-02-27  7:11 ` [PATCH v5 0/6] dt-bindings: add bindings for USB physical connector Andrzej Hajda
2018-02-27  7:11   ` Andrzej Hajda
2018-02-27  7:11   ` Andrzej Hajda
     [not found]   ` <CGME20180227071138eucas1p17e1e16f13f6d3e3b15a57dc93eb8cf3f@eucas1p1.samsung.com>
2018-02-27  7:11     ` [PATCH v5 1/6] " Andrzej Hajda
2018-02-27  7:11       ` Andrzej Hajda
2018-02-27  7:11       ` [v5,1/6] " Andrzej Hajda
2018-02-27  7:11       ` [PATCH v5 1/6] " Andrzej Hajda
2018-03-02 13:13       ` Heikki Krogerus
2018-03-02 13:13         ` Heikki Krogerus
2018-03-02 13:13         ` [v5,1/6] " Heikki Krogerus
2018-03-05  8:18         ` Andrzej Hajda [this message]
2018-03-05  8:18           ` [PATCH v5 1/6] " Andrzej Hajda
2018-03-05  8:18           ` [v5,1/6] " Andrzej Hajda
2018-03-05  8:18           ` [PATCH v5 1/6] " Andrzej Hajda
2018-03-05 10:27           ` Heikki Krogerus
2018-03-05 10:27             ` Heikki Krogerus
2018-03-05 10:27             ` [v5,1/6] " Heikki Krogerus
2018-03-05 22:14       ` [PATCH v5 1/6] " Rob Herring
2018-03-05 22:14         ` Rob Herring
2018-03-05 22:14         ` [v5,1/6] " Rob Herring
2018-03-05 22:14         ` [PATCH v5 1/6] " Rob Herring
2018-03-09 10:24       ` Roger Quadros
2018-03-09 10:24         ` Roger Quadros
2018-03-09 10:24         ` [v5,1/6] " Roger Quadros
2018-03-09 10:24         ` [PATCH v5 1/6] " Roger Quadros
2018-03-12  7:02         ` Andrzej Hajda
2018-03-12  7:02           ` Andrzej Hajda
2018-03-12  7:02           ` [v5,1/6] " Andrzej Hajda
2018-03-12  7:02           ` [PATCH v5 1/6] " Andrzej Hajda
2018-03-12  7:06           ` Andrzej Hajda
2018-03-12  7:06             ` Andrzej Hajda
2018-03-12  7:06             ` [v5,1/6] " Andrzej Hajda
2018-03-12  7:06             ` [PATCH v5 1/6] " Andrzej Hajda
2018-03-12 10:41           ` Roger Quadros
2018-03-12 10:41             ` Roger Quadros
2018-03-12 10:41             ` [v5,1/6] " Roger Quadros
2018-03-12 10:41             ` [PATCH v5 1/6] " Roger Quadros
2018-03-15 11:02             ` Andrzej Hajda
2018-03-15 11:02               ` Andrzej Hajda
2018-03-15 11:02               ` [v5,1/6] " Andrzej Hajda
2018-03-15 11:02               ` [PATCH v5 1/6] " Andrzej Hajda
2018-03-15 11:46             ` Robin Murphy
2018-03-15 11:46               ` Robin Murphy
2018-03-15 11:46               ` [v5,1/6] " Robin Murphy
2018-03-15 11:46               ` [PATCH v5 1/6] " Robin Murphy
2018-03-15 17:08               ` Roger Quadros
2018-03-15 17:08                 ` Roger Quadros
2018-03-15 17:08                 ` [v5,1/6] " Roger Quadros
2018-03-15 17:08                 ` [PATCH v5 1/6] " Roger Quadros
     [not found]   ` <CGME20180227071139eucas1p125ee35ada221fbed1dc85b7fc250f9ca@eucas1p1.samsung.com>
2018-02-27  7:11     ` [PATCH v5 2/6] dt-bindings: add bindings for Samsung micro-USB 11-pin connector Andrzej Hajda
2018-02-27  7:11       ` Andrzej Hajda
2018-02-27  7:11       ` [v5,2/6] " Andrzej Hajda
2018-02-27  7:11       ` [PATCH v5 2/6] " Andrzej Hajda
     [not found]   ` <CGME20180227071139eucas1p1d28b39a6636a7e6625aeb3a16091f81a@eucas1p1.samsung.com>
2018-02-27  7:11     ` [PATCH v5 3/6] arm64: dts: exynos: add micro-USB connector node to TM2 platforms Andrzej Hajda
2018-02-27  7:11       ` Andrzej Hajda
2018-02-27  7:11       ` [v5,3/6] " Andrzej Hajda
2018-02-27  7:11       ` [PATCH v5 3/6] " Andrzej Hajda
2018-03-06 16:49       ` Krzysztof Kozlowski
2018-03-06 16:49         ` Krzysztof Kozlowski
2018-03-06 16:49         ` [v5,3/6] " Krzysztof Kozlowski
     [not found]   ` <CGME20180227071140eucas1p15a8b8443c6d52c5fab79cc82c37dce09@eucas1p1.samsung.com>
2018-02-27  7:11     ` [PATCH v5 4/6] arm64: dts: exynos: add OF graph between MHL and USB connector Andrzej Hajda
2018-02-27  7:11       ` Andrzej Hajda
2018-02-27  7:11       ` [v5,4/6] " Andrzej Hajda
2018-02-27  7:11       ` [PATCH v5 4/6] " Andrzej Hajda
2018-03-06 16:49       ` Krzysztof Kozlowski
2018-03-06 16:49         ` Krzysztof Kozlowski
2018-03-06 16:49         ` [v5,4/6] " Krzysztof Kozlowski
2018-03-06 16:49         ` [PATCH v5 4/6] " Krzysztof Kozlowski
     [not found]   ` <CGME20180227071141eucas1p1170216070d70007a07de120a0dc3363a@eucas1p1.samsung.com>
2018-02-27  7:11     ` [PATCH v5 5/6] extcon: add possibility to get extcon device by OF node Andrzej Hajda
2018-02-27  7:11       ` Andrzej Hajda
2018-02-27  7:11       ` [v5,5/6] " Andrzej Hajda
2018-02-27  7:11       ` [PATCH v5 5/6] " Andrzej Hajda
2018-02-27 11:03       ` Chanwoo Choi
2018-02-27 11:03         ` Chanwoo Choi
2018-02-27 11:03         ` [v5,5/6] " Chanwoo Choi
     [not found]         ` <CGME20180227122215eucas1p11a1a12c26665f032c666d10effaf15fc@eucas1p1.samsung.com>
2018-02-27 12:22           ` [PATCH v6 5/6] " Andrzej Hajda
2018-02-27 12:22             ` Andrzej Hajda
2018-02-27 12:22             ` [v6,5/6] " Andrzej Hajda
2018-02-27 12:22             ` [PATCH v6 5/6] " Andrzej Hajda
     [not found]   ` <CGME20180227071142eucas1p10203dac2558db034a4a3287220213601@eucas1p1.samsung.com>
2018-02-27  7:11     ` [PATCH v5 6/6] drm/bridge/sii8620: use micro-USB cable detection logic to detect MHL Andrzej Hajda
2018-02-27  7:11       ` Andrzej Hajda
2018-02-27  7:11       ` [v5,6/6] " Andrzej Hajda
2018-02-27  7:11       ` [PATCH v5 6/6] " Andrzej Hajda
2018-02-27 11:08       ` Chanwoo Choi
2018-02-27 11:08         ` Chanwoo Choi
2018-02-27 11:08         ` [v5,6/6] " Chanwoo Choi
2018-02-27 12:05         ` [PATCH v5 6/6] " Andrzej Hajda
2018-02-27 12:05           ` Andrzej Hajda
2018-02-27 12:05           ` [v5,6/6] " Andrzej Hajda
2018-02-27 12:05           ` [PATCH v5 6/6] " Andrzej Hajda
2018-02-27 22:26           ` Chanwoo Choi
2018-02-27 22:26             ` Chanwoo Choi
2018-02-27 22:26             ` [v5,6/6] " Chanwoo Choi
2018-02-28 13:44             ` [PATCH v5 6/6] " Andrzej Hajda
2018-02-28 13:44               ` Andrzej Hajda
2018-02-28 13:44               ` [v5,6/6] " Andrzej Hajda
2018-02-28 13:44               ` [PATCH v5 6/6] " Andrzej Hajda
2018-03-02  0:29               ` Chanwoo Choi
2018-03-02  0:29                 ` Chanwoo Choi
2018-03-02  0:29                 ` [v5,6/6] " Chanwoo Choi
2018-03-06 12:53   ` [PATCH v5 0/6] dt-bindings: add bindings for USB physical connector Andrzej Hajda
2018-03-06 12:53     ` Andrzej Hajda
2018-03-06 13:08     ` Krzysztof Kozlowski
2018-03-06 13:08       ` Krzysztof Kozlowski
2018-03-07  2:12     ` Chanwoo Choi
2018-03-07  2:12       ` Chanwoo Choi
2018-03-07  4:48       ` Chanwoo Choi
2018-03-07  4:48         ` Chanwoo Choi
2018-03-07 11:13         ` Andrzej Hajda
2018-03-07 11:13           ` Andrzej Hajda
2018-03-07 11:22           ` Krzysztof Kozlowski
2018-03-07 11:22             ` Krzysztof Kozlowski
2018-03-07 11:22             ` Krzysztof Kozlowski
2018-03-07 11:40             ` Andrzej Hajda
2018-03-07 11:40               ` Andrzej Hajda
2018-03-07 11:40               ` Andrzej Hajda
2018-03-08  1:52           ` Chanwoo Choi
2018-03-08  1:52             ` Chanwoo Choi
2018-03-09  9:20             ` Andrzej Hajda
2018-03-09  9:20               ` Andrzej Hajda
2018-03-09  9:20               ` Andrzej Hajda
2018-03-12  1:29               ` Chanwoo Choi
2018-03-12  1:29                 ` Chanwoo Choi
2018-03-12  1:29                 ` [v5,0/6] " Chanwoo Choi

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