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From: Rob Herring <robh@kernel.org>
To: megous@megous.com
Cc: linux-sunxi@googlegroups.com,
	Maxime Ripard <maxime.ripard@bootlin.com>,
	Chen-Yu Tsai <wens@csie.org>,
	Linus Walleij <linus.walleij@linaro.org>,
	David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
	Mark Rutland <mark.rutland@arm.com>,
	Giuseppe Cavallaro <peppe.cavallaro@st.com>,
	Alexandre Torgue <alexandre.torgue@st.com>,
	Jose Abreu <joabreu@synopsys.com>,
	"David S. Miller" <davem@davemloft.net>,
	Maxime Coquelin <mcoquelin.stm32@gmail.com>,
	dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
	linux-stm32@st-md-mailman.stormreply.com,
	linux-gpio@vger.kernel.org
Subject: Re: [PATCH v4 6/9] dt-bindings: display: hdmi-connector: Add DDC power supply
Date: Fri, 26 Apr 2019 13:23:37 -0500	[thread overview]
Message-ID: <20190426182337.GA22245@bogus> (raw)
In-Reply-To: <20190413165418.27880-7-megous@megous.com>

On Sat, Apr 13, 2019 at 06:54:15PM +0200, megous@megous.com wrote:
> From: Ondrej Jirman <megous@megous.com>
> 
> Some Allwinner SoC using boards (Orange Pi 3 for example) need to enable
> on-board voltage shifting logic for the DDC bus to be usable. Use
> ddc-supply on the hdmi-connector to model this.
> 
> Add binding documentation for optional ddc-supply property.
> 
> Signed-off-by: Ondrej Jirman <megous@megous.com>
> ---
>  .../devicetree/bindings/display/connector/hdmi-connector.txt     | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/Documentation/devicetree/bindings/display/connector/hdmi-connector.txt b/Documentation/devicetree/bindings/display/connector/hdmi-connector.txt
> index 508aee461e0d..33085aeb0bb9 100644
> --- a/Documentation/devicetree/bindings/display/connector/hdmi-connector.txt
> +++ b/Documentation/devicetree/bindings/display/connector/hdmi-connector.txt
> @@ -9,6 +9,7 @@ Optional properties:
>  - label: a symbolic name for the connector
>  - hpd-gpios: HPD GPIO number
>  - ddc-i2c-bus: phandle link to the I2C controller used for DDC EDID probing
> +- ddc-supply: the power supply for the DDC bus

It's not just for DDC. It powers the chips in bridge dongles for 
example. Pretty much every diagram I find just calls it 5V or +5V.

So how about '5V-supply' or 'v5V-supply'?

Rob

WARNING: multiple messages have this Message-ID (diff)
From: Rob Herring <robh@kernel.org>
To: megous@megous.com
Cc: Mark Rutland <mark.rutland@arm.com>,
	Maxime Coquelin <mcoquelin.stm32@gmail.com>,
	Alexandre Torgue <alexandre.torgue@st.com>,
	devicetree@vger.kernel.org,
	Maxime Ripard <maxime.ripard@bootlin.com>,
	netdev@vger.kernel.org, Linus Walleij <linus.walleij@linaro.org>,
	linux-stm32@st-md-mailman.stormreply.com,
	Chen-Yu Tsai <wens@csie.org>,
	dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
	David Airlie <airlied@linux.ie>,
	linux-sunxi@googlegroups.com, Jose Abreu <joabreu@synopsys.com>,
	Daniel Vetter <daniel@ffwll.ch>,
	linux-gpio@vger.kernel.org,
	Giuseppe Cavallaro <peppe.cavallaro@st.com>,
	"David S. Miller" <davem@davemloft.net>,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v4 6/9] dt-bindings: display: hdmi-connector: Add DDC power supply
Date: Fri, 26 Apr 2019 13:23:37 -0500	[thread overview]
Message-ID: <20190426182337.GA22245@bogus> (raw)
In-Reply-To: <20190413165418.27880-7-megous@megous.com>

On Sat, Apr 13, 2019 at 06:54:15PM +0200, megous@megous.com wrote:
> From: Ondrej Jirman <megous@megous.com>
> 
> Some Allwinner SoC using boards (Orange Pi 3 for example) need to enable
> on-board voltage shifting logic for the DDC bus to be usable. Use
> ddc-supply on the hdmi-connector to model this.
> 
> Add binding documentation for optional ddc-supply property.
> 
> Signed-off-by: Ondrej Jirman <megous@megous.com>
> ---
>  .../devicetree/bindings/display/connector/hdmi-connector.txt     | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/Documentation/devicetree/bindings/display/connector/hdmi-connector.txt b/Documentation/devicetree/bindings/display/connector/hdmi-connector.txt
> index 508aee461e0d..33085aeb0bb9 100644
> --- a/Documentation/devicetree/bindings/display/connector/hdmi-connector.txt
> +++ b/Documentation/devicetree/bindings/display/connector/hdmi-connector.txt
> @@ -9,6 +9,7 @@ Optional properties:
>  - label: a symbolic name for the connector
>  - hpd-gpios: HPD GPIO number
>  - ddc-i2c-bus: phandle link to the I2C controller used for DDC EDID probing
> +- ddc-supply: the power supply for the DDC bus

It's not just for DDC. It powers the chips in bridge dongles for 
example. Pretty much every diagram I find just calls it 5V or +5V.

So how about '5V-supply' or 'v5V-supply'?

Rob

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  reply	other threads:[~2019-04-26 18:23 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-13 16:54 [PATCH v4 0/9] Add support for Orange Pi 3 megous via linux-sunxi
2019-04-13 16:54 ` megous
2019-04-13 16:54 ` megous
     [not found] ` <20190413165418.27880-1-megous-5qf/QAjKc83QT0dZR+AlfA@public.gmane.org>
2019-04-13 16:54   ` [PATCH v4 1/9] net: stmmac: sun8i: add support for Allwinner H6 EMAC megous via linux-sunxi
2019-04-13 16:54     ` megous
2019-04-13 16:54     ` megous
2019-04-13 16:54   ` [PATCH v4 2/9] net: stmmac: sun8i: force select external PHY when no internal one megous via linux-sunxi
2019-04-13 16:54     ` megous
2019-04-13 16:54     ` megous
2019-04-13 16:54   ` [PATCH v4 3/9] pinctrl: sunxi: Prepare for alternative bias voltage setting methods megous via linux-sunxi
2019-04-13 16:54     ` megous
2019-04-13 16:54     ` megous
     [not found]     ` <20190413165418.27880-4-megous-5qf/QAjKc83QT0dZR+AlfA@public.gmane.org>
2019-04-23 10:31       ` Linus Walleij
2019-04-23 10:31         ` Linus Walleij
2019-04-23 10:31         ` Linus Walleij
2019-04-13 16:54   ` [PATCH v4 4/9] pinctrl: sunxi: Support I/O bias voltage setting on H6 megous via linux-sunxi
2019-04-13 16:54     ` megous
2019-04-13 16:54     ` megous
     [not found]     ` <20190413165418.27880-5-megous-5qf/QAjKc83QT0dZR+AlfA@public.gmane.org>
2019-04-23 10:32       ` Linus Walleij
2019-04-23 10:32         ` Linus Walleij
2019-04-23 10:32         ` Linus Walleij
2019-04-13 16:54   ` [PATCH v4 5/9] arm64: dts: allwinner: orange-pi-3: Enable ethernet megous via linux-sunxi
2019-04-13 16:54     ` megous
2019-04-13 16:54     ` megous
2019-05-03 11:58     ` [linux-sunxi] " Jagan Teki
2019-05-03 11:58       ` Jagan Teki
2019-05-03 11:58       ` Jagan Teki
2019-04-13 16:54   ` [PATCH v4 6/9] dt-bindings: display: hdmi-connector: Add DDC power supply megous via linux-sunxi
2019-04-13 16:54     ` megous
2019-04-13 16:54     ` megous
2019-04-26 18:23     ` Rob Herring [this message]
2019-04-26 18:23       ` Rob Herring
2019-04-26 19:20       ` Ondřej Jirman
2019-04-26 19:20         ` Ondřej Jirman
2019-04-26 20:02         ` Rob Herring
2019-04-26 20:02           ` Rob Herring
2019-04-26 20:02           ` Rob Herring
     [not found]           ` <CAL_Jsq+o1j6AGL9UnhN1tV150DsFug6pg+UPEJ9EKqBc6rgq_w-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2019-04-27 19:01             ` 'Ondřej Jirman' via linux-sunxi
2019-04-27 19:01               ` Ondřej Jirman
2019-04-27 19:01               ` Ondřej Jirman
2019-04-13 16:54   ` [PATCH v4 7/9] drm: sun4i: Add support for enabling DDC I2C bus power to dw_hdmi glue megous via linux-sunxi
2019-04-13 16:54     ` megous
2019-04-13 16:54     ` megous
2019-04-13 16:54   ` [PATCH v4 8/9] arm64: dts: allwinner: orange-pi-3: Enable HDMI output megous via linux-sunxi
2019-04-13 16:54     ` megous
2019-04-13 16:54     ` megous
2019-04-13 16:54   ` [PATCH v4 9/9] arm64: dts: allwinner: h6: Add MMC1 pins megous via linux-sunxi
2019-04-13 16:54     ` megous
2019-04-13 16:54     ` megous
     [not found]     ` <20190413165418.27880-10-megous-5qf/QAjKc83QT0dZR+AlfA@public.gmane.org>
2019-04-15  7:50       ` Maxime Ripard
2019-04-15  7:50         ` Maxime Ripard
2019-04-15  7:50         ` Maxime Ripard

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