From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 92B73C2D0C3 for ; Sat, 21 Dec 2019 18:21:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6880220665 for ; Sat, 21 Dec 2019 18:21:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726114AbfLUSVB (ORCPT ); Sat, 21 Dec 2019 13:21:01 -0500 Received: from jabberwock.ucw.cz ([46.255.230.98]:38364 "EHLO jabberwock.ucw.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726107AbfLUSVA (ORCPT ); Sat, 21 Dec 2019 13:21:00 -0500 Received: by jabberwock.ucw.cz (Postfix, from userid 1017) id 4B2391C24DF; Sat, 21 Dec 2019 19:20:58 +0100 (CET) Date: Sat, 21 Dec 2019 19:20:57 +0100 From: Pavel Machek To: Andreas =?iso-8859-1?Q?F=E4rber?= Cc: linux-realtek-soc@lists.infradead.org, linux-leds@vger.kernel.org, Jacek Anaszewski , Dan Murphy , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-rtc@vger.kernel.org, Alessandro Zummo , Alexandre Belloni , devicetree@vger.kernel.org, Rob Herring , linux-spi@vger.kernel.org, Mark Brown , linux-amlogic@lists.infradead.org, Roc He , 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 Message-ID: <20191221182057.GA32732@amd> References: <20191212033952.5967-1-afaerber@suse.de> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="opJtzjQTFsWo+cga" Content-Disposition: inline In-Reply-To: <20191212033952.5967-1-afaerber@suse.de> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-leds-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-leds@vger.kernel.org --opJtzjQTFsWo+cga Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi! > This patch series implements the LED controllers found in some RTD1295 ba= sed > TV set-top boxes. >=20 > 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-config= ured > 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 --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --opJtzjQTFsWo+cga Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAl3+YokACgkQMOfwapXb+vJoqgCfY5/dzSIdT0c0DWaA1+WWkFdQ 6wkAoIzd/X2VTQwW3tq7WApoawbDjUdO =xFhp -----END PGP SIGNATURE----- --opJtzjQTFsWo+cga--