From: Chen-Yu Tsai <wens@csie.org>
To: Maxime Ripard <maxime.ripard@bootlin.com>
Cc: "Ondřej Jirman" <megous@megous.com>,
linux-sunxi <linux-sunxi@googlegroups.com>,
"Rob Herring" <robh+dt@kernel.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>,
"Arend van Spriel" <arend.vanspriel@broadcom.com>,
"Franky Lin" <franky.lin@broadcom.com>,
"Hante Meuleman" <hante.meuleman@broadcom.com>,
"Chi-Hsien Lin" <chi-hsien.lin@cypress.com>,
"Wright Feng" <wright.feng@cypress.com>,
"Kalle Valo" <kvalo@codeaurora.org>,
"Naveen Gupta" <naveen.gupta@cypress.com>,
dri-devel <dri-devel@lists.freedesktop.org>,
devicetree <devicetree@vger.kernel.org>,
linux-arm-kernel <linux-arm-kernel@lists.infradead.org>,
linux-kernel <linux-kernel@vger.kernel.org>,
netdev <netdev@vger.kernel.org>,
linux-stm32@st-md-mailman.stormreply.com,
linux-wireless <linux-wireless@vger.kernel.org>,
brcm80211-dev-list.pdl@broadcom.com,
brcm80211-dev-list@cypress.com,
"open list:GPIO SUBSYSTEM" <linux-gpio@vger.kernel.org>
Subject: Re: [linux-sunxi] Re: [PATCH 02/12] drm: sun4i: Add support for enabling DDC I2C bus to dw_hdmi glue
Date: Mon, 8 Apr 2019 15:28:24 +0800 [thread overview]
Message-ID: <CAGb2v65W_H5HrnY9+DuW-noshXLHgErJhEpHHhzcG15n1u=8iw@mail.gmail.com> (raw)
In-Reply-To: <20190408072338.3urcotemju3qi2un@flea>
On Mon, Apr 8, 2019 at 3:23 PM Maxime Ripard <maxime.ripard@bootlin.com> wrote:
>
> On Sat, Apr 06, 2019 at 01:45:04AM +0200, megous@megous.com wrote:
> > From: Ondrej Jirman <megous@megous.com>
> >
> > Orange Pi 3 board requires enabling DDC I2C bus via some GPIO connected
> > transistors, before it can be used. Model this as a power supply for DDC
> > (via regulator framework).
> >
> > Signed-off-by: Ondrej Jirman <megous@megous.com>
>
> The DDC bus itself is usually attached to the HDMI connector, so it
> would make sense to make the supply also a property of the connector.
I believe these are separate things. What this patch covers is power for
a voltage shifter between the SoC and HDMI DDC pins. The HDMI connector's
5V supply to power the remote DDC chip is something else. And on the
Orange Pi 3 they are indeed separate supplies.
ChenYu
next prev parent reply other threads:[~2019-04-08 7:28 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-05 23:45 [PATCH 00/12] Add support for Orange Pi 3 megous
2019-04-05 23:45 ` [PATCH 01/12] arm64: dts: allwinner: h6: Add Orange Pi 3 DTS megous
2019-04-08 7:46 ` Maxime Ripard
2019-04-08 22:58 ` Ondřej Jirman
2019-04-09 7:22 ` Maxime Ripard
2019-04-05 23:45 ` [PATCH 02/12] drm: sun4i: Add support for enabling DDC I2C bus to dw_hdmi glue megous
2019-04-08 7:23 ` Maxime Ripard
2019-04-08 7:28 ` Chen-Yu Tsai [this message]
2019-04-08 8:47 ` [linux-sunxi] " Maxime Ripard
2019-04-08 12:17 ` Ondřej Jirman
2019-04-09 7:45 ` Maxime Ripard
2019-04-05 23:45 ` [PATCH 03/12] dt-bindings: display: sun4i-drm: Add DDC power supply megous
2019-04-05 23:45 ` [PATCH 04/12] arm64: dts: allwinner: orange-pi-3: Enable HDMI output megous
2019-04-08 7:24 ` Maxime Ripard
2019-04-05 23:45 ` [PATCH 05/12] net: stmmac: sun8i: add support for Allwinner H6 EMAC megous
2019-04-08 7:25 ` Maxime Ripard
2019-04-05 23:45 ` [PATCH 06/12] net: stmmac: sun8i: force select external PHY when no internal one megous
2019-04-06 10:24 ` Sergei Shtylyov
2019-04-05 23:45 ` [PATCH 07/12] arm64: dts: allwinner: orange-pi-3: Enable ethernet megous
2019-04-08 6:11 ` Jagan Teki
2019-04-08 22:26 ` Ondřej Jirman
2019-04-08 7:40 ` Maxime Ripard
2019-04-08 23:22 ` Ondřej Jirman
2019-04-09 7:23 ` Maxime Ripard
2019-04-09 7:35 ` Linus Walleij
2019-04-05 23:45 ` [PATCH 08/12] arm64: dts: allwinner: h6: Add MMC1 pins megous
2019-04-08 7:43 ` Maxime Ripard
2019-04-08 22:41 ` Ondřej Jirman
2019-04-09 7:20 ` Maxime Ripard
2019-04-05 23:45 ` [PATCH 09/12] pinctrl: sunxi: Prepare for alternative bias voltage setting methods megous
2019-04-08 12:53 ` Linus Walleij
2019-04-08 13:08 ` Ondřej Jirman
2019-04-05 23:45 ` [PATCH 10/12] pinctrl: sunxi: Support I/O bias voltage setting on H6 megous
2019-04-08 1:31 ` Ondřej Jirman
2019-04-08 7:42 ` Maxime Ripard
2019-04-05 23:45 ` [PATCH 11/12] brcmfmac: Loading the correct firmware for brcm43456 megous
2019-04-13 11:06 ` Kalle Valo
2019-04-05 23:45 ` [PATCH 12/12] arm64: dts: allwinner: orange-pi-3: Enable WiFi megous
2019-04-07 15:31 ` [linux-sunxi] " Clément Péron
2019-04-07 16:15 ` Ondřej Jirman
2019-04-07 13:36 ` [linux-sunxi] [PATCH 00/12] Add support for Orange Pi 3 Clément Péron
2019-04-07 14:32 ` Ondřej Jirman
2019-04-07 15:08 ` Clément Péron
2019-04-08 6:01 ` Jagan Teki
2019-04-08 12:46 ` Ondřej Jirman
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