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From: Pavel Machek <pavel@ucw.cz>
To: Ezra Buehler <ezra@easyb.ch>
Cc: "Robin Murphy" <robin.murphy@arm.com>,
	"Andreas Färber" <afaerber@suse.de>,
	linux-realtek-soc@lists.infradead.org,
	linux-leds@vger.kernel.org, linux-rtc@vger.kernel.org,
	"Alessandro Zummo" <a.zummo@towertech.it>,
	"Alexandre Belloni" <alexandre.belloni@bootlin.com>,
	csd@princeton.com.tw, devicetree@vger.kernel.org,
	sales@fdhisi.com, "Mark Brown" <broonie@kernel.org>,
	linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org,
	"Rob Herring" <robh+dt@kernel.org>,
	"Jacek Anaszewski" <jacek.anaszewski@gmail.com>,
	zypeng@titanmec.com, linux-amlogic@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org,
	"Dan Murphy" <dmurphy@ti.com>,
	linux-rockchip@lists.infradead.org
Subject: Re: [RFC 00/25] arm64: realtek: Add Xnano X5 and implement TM1628/FD628/AiP1618 LED controllers
Date: Wed, 26 Feb 2020 14:03:00 +0100	[thread overview]
Message-ID: <20200226130300.GB2800@duo.ucw.cz> (raw)
In-Reply-To: <E33E27B9-D33C-4182-A5B1-C72FA40470BC@easyb.ch>

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Hi!

> > On 13 Dec 2019, at 15:07, Robin Murphy <robin.murphy@arm.com> wrote:
> > 
> > I also have one of the H96 Max boxes (which I picked up out of curiosity
> > for the mysterious RK3318) with an FD6551, although I've not attacked
> > that one with the logic analyser yet to see how similar it is.
> 
> I have a T9 (RK3328) TV box with the same chip in it. The FD6551 uses an
> I2C-like protocol. Every digit (and the symbols) have an I2C address,
> but, the display does not signal ACK. AFAIK the FD650 and FD655 which
> are used in other boxes (Amlogic) are very similar.
> 
> So far, I have whipped up a proof-of-cocept driver that uses i2c-gpio.
> The digits seem to be rotated by 180 degrees. So, in order to use
> map_to_7segment.h I had to define the BIT_SEG7_* constants differently.
> My display also has multiple symbols (WIFI, network, pause, play, USB,
> alarm) that are controlled by writing to the same address as for the
> colon.
> 
> I’d love to work on a driver (similar to Andreas’ SPI based driver) for
> these I2C connected chips.

Create a driver in drivers/auxdisplay for alphanumeric parts. You can
then export any remaining symbols as LEDs if it will provide benefits.

Best regards,
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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  reply	other threads:[~2020-02-26 13:03 UTC|newest]

Thread overview: 60+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-12  3:39 Andreas Färber
2019-12-12  3:39 ` [RFC 01/25] dt-bindings: vendor-prefixes: Add Xnano Andreas Färber
2019-12-19 22:26   ` Rob Herring
2019-12-12  3:39 ` [RFC 02/25] dt-bindings: arm: realtek: Add Xnano X5 Andreas Färber
2019-12-19 22:27   ` Rob Herring
2019-12-12  3:39 ` [RFC 03/25] arm64: dts: realtek: rtd1295: " Andreas Färber
2019-12-12  3:39 ` [RFC 04/25] spi: gpio: Implement LSB First bitbang support Andreas Färber
2019-12-12  8:40   ` Geert Uytterhoeven
2019-12-12 15:14     ` Andreas Färber
2019-12-12 17:19       ` Mark Brown
2019-12-12 21:08         ` Andreas Färber
2019-12-13 11:42           ` Mark Brown
2019-12-12  3:39 ` [RFC 05/25] dt-bindings: vendor-prefixes: Add Titan Micro Electronics Andreas Färber
2019-12-19 22:31   ` Rob Herring
2019-12-12  3:39 ` [RFC 06/25] dt-bindings: leds: Add Titan Micro Electronics TM1628 Andreas Färber
2019-12-19 23:04   ` Rob Herring
2019-12-12  3:39 ` [RFC 07/25] " Andreas Färber
2019-12-14  9:48   ` Andreas Färber
2019-12-12  3:39 ` [RFC 08/25] arm64: dts: realtek: rtd129x-zidoo-x9s: Add TM1628 LED controller Andreas Färber
2019-12-12  3:39 ` [RFC 09/25] arm64: dts: realtek: rtd1295-zidoo-x9s: Add regular LEDs to TM1628 Andreas Färber
2019-12-12  3:39 ` [RFC 10/25] dt-bindings: vendor-prefixes: Add Fuda Hisi Microelectronics Andreas Färber
2019-12-19 23:04   ` Rob Herring
2019-12-12  3:39 ` [RFC 11/25] dt-bindings: leds: tm1628: Add Fuda Hisi Microelectronics FD628 Andreas Färber
2019-12-19 23:05   ` Rob Herring
2019-12-12  3:39 ` [RFC 12/25] " Andreas Färber
2019-12-12  3:39 ` [RFC 13/25] arm64: dts: realtek: rtd1295-xnano-x5: Add FD628 LED controller Andreas Färber
2019-12-12  3:39 ` [RFC 14/25] arm64: dts: realtek: rtd1295-xnano-x5: Add regular LEDs to FD628 Andreas Färber
2019-12-21 20:21   ` Pavel Machek
2019-12-12  3:39 ` [RFC 15/25] dt-bindings: vendor-prefixes: Add Fude Microelectronics Andreas Färber
2019-12-19 23:05   ` Rob Herring
2019-12-12  3:39 ` [RFC 16/25] dt-bindings: leds: tm1628: Add Fude Microelectronics AiP1618 Andreas Färber
2019-12-19 23:06   ` Rob Herring
2019-12-12  3:39 ` [RFC 17/25] leds: tm1628: Prepare " Andreas Färber
2019-12-21 19:55   ` Andreas Färber
2019-12-12  3:39 ` [RFC 18/25] dt-bindings: leds: tm1628: Define display child nodes Andreas Färber
2019-12-12  3:39 ` [RFC 19/25] leds: tm1628: Add 7-segment display support Andreas Färber
2019-12-12  8:33   ` Geert Uytterhoeven
2019-12-12 14:10     ` Andreas Färber
2019-12-21 20:23   ` Pavel Machek
2019-12-12  3:39 ` [RFC 20/25] arm64: dts: realtek: rtd1295-zidoo-x9s: Add display to TM1628 Andreas Färber
2019-12-12  3:39 ` [RFC 21/25] arm64: dts: realtek: rtd1295-xnano-x5: Add display to FD628 Andreas Färber
2019-12-12  3:39 ` [RFC 22/25] leds: tm1826: Add combined glyph support Andreas Färber
2019-12-21 20:27   ` Pavel Machek
2019-12-21 20:41     ` Andreas Färber
2019-12-21 21:04       ` Pavel Machek
2019-12-21 21:49         ` Andreas Färber
     [not found]           ` <CANiq72nA9OLa0SjY8W055J_2A32tcp7S98SruKSdWH2dm25VKw@mail.gmail.com>
2019-12-22  3:14             ` Andreas Färber
2020-01-15 14:31               ` Miguel Ojeda
2019-12-12  3:39 ` [RFC 23/25] WIP: leds: tm1628: Prepare TM1628 keys Andreas Färber
2019-12-12  3:39 ` [RFC 24/25] WIP: leds: tm1628: Prepare FD628 keys Andreas Färber
2019-12-12  3:39 ` [RFC 25/25] WIP: leds: tm1628: Prepare AiP1618 keys Andreas Färber
2019-12-12 13:14 ` [RFC 00/25] arm64: realtek: Add Xnano X5 and implement TM1628/FD628/AiP1618 LED controllers Robin Murphy
2019-12-12 20:55   ` Andreas Färber
2019-12-13 14:07     ` Robin Murphy
2019-12-13 14:36       ` Geert Uytterhoeven
2020-02-25 21:42       ` Ezra Buehler
2020-02-26 13:03         ` Pavel Machek [this message]
2019-12-21 18:20 ` Pavel Machek
2019-12-21 21:07   ` Andreas Färber
2020-01-15 13:34 ` Andreas Färber

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