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From: Pavel Machek <pavel@ucw.cz>
To: "Andreas Färber" <afaerber@suse.de>
Cc: linux-realtek-soc@lists.infradead.org,
	linux-leds@vger.kernel.org,
	Jacek Anaszewski <jacek.anaszewski@gmail.com>,
	Dan Murphy <dmurphy@ti.com>,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux-rtc@vger.kernel.org,
	Alessandro Zummo <a.zummo@towertech.it>,
	Alexandre Belloni <alexandre.belloni@bootlin.com>,
	devicetree@vger.kernel.org, Rob Herring <robh+dt@kernel.org>,
	linux-spi@vger.kernel.org, Mark Brown <broonie@kernel.org>,
	linux-amlogic@lists.infradead.org, Roc He <hepeng@zidoo.tv>,
	zypeng@titanmec.com, sales@fdhisi.com, csd@princeton.com.tw
Subject: Re: [RFC 00/25] arm64: realtek: Add Xnano X5 and implement TM1628/FD628/AiP1618 LED controllers
Date: Sat, 21 Dec 2019 19:20:57 +0100	[thread overview]
Message-ID: <20191221182057.GA32732@amd> (raw)
In-Reply-To: <20191212033952.5967-1-afaerber@suse.de>

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Hi!

> This patch series implements the LED controllers found in some RTD1295 based
> TV set-top boxes.
> 
> Ever since I've had mainline Linux kernels booting on my Zidoo X9S TV box,
> it's been bugging me that it kept displaying "boot" on its front display.
> A hot lead was a TM1628 chip on the front display's daughterboard, which
> English and Chinese datasheets were available for. The biggest
> hurdle

Fun :-).

> It goes on to add a "text" attribute to the driver that enables DT-configured
> seven-segment displays; I was expecting to find precedence in auxdisplay
> subsystem but came up empty. So my driver currently integrates its own
> generic (but incomplete) character-to-8-segments mapping, as well as in a
> second step a combined-characters-to-8-segments mapping, which then gets
> mapped to the chipset's available output lines. Doing this as sysfs
> device

I did not investigate this in great detail; but if it is displaying
characters, auxdisplay is probably right subsystem to handle that. I
guess LEDs can still take the low-level parts...

Oh, and common dimming for many LEDs is seen on other hardware, too
(Turris routers). Not sure how to handle that, either :-(.

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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  parent reply	other threads:[~2019-12-21 18:21 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
2019-12-21 18:20 ` Pavel Machek [this message]
2019-12-21 21:07   ` Andreas Färber
2020-01-15 13:34 ` Andreas Färber

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