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,URIBL_BLOCKED,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 8D1D6C54EEB for ; Sun, 22 Mar 2020 22:42:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6128E2076E for ; Sun, 22 Mar 2020 22:42:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726816AbgCVWmd (ORCPT ); Sun, 22 Mar 2020 18:42:33 -0400 Received: from jabberwock.ucw.cz ([46.255.230.98]:58798 "EHLO jabberwock.ucw.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726809AbgCVWmd (ORCPT ); Sun, 22 Mar 2020 18:42:33 -0400 Received: by jabberwock.ucw.cz (Postfix, from userid 1017) id 3991D1C033E; Sun, 22 Mar 2020 23:42:31 +0100 (CET) Date: Sun, 22 Mar 2020 23:42:30 +0100 From: Pavel Machek To: Tony Lindgren , kernel list , linux-arm-kernel , linux-omap@vger.kernel.org, sre@kernel.org, nekit1000@gmail.com, mpartap@gmx.net, merlijn@wizzup.org, martin_rysavy@centrum.cz Cc: Merlijn Wajer , Peter Hurley , Sebastian Reichel , linux-serial@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org Subject: Droid 4 in -next -- still no backlight was Re: [PATCH 1/4] tty: n_gsm: Add support for serdev drivers Message-ID: <20200322224230.GB28082@amd> References: <20200319173755.65082-1-tony@atomide.com> <20200319173755.65082-2-tony@atomide.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="R3G7APHDIzY6R/pk" Content-Disposition: inline In-Reply-To: <20200319173755.65082-2-tony@atomide.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org --R3G7APHDIzY6R/pk Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi! > We can make use of serdev drivers to do simple device drivers for > TS 27.010 chanels, and we can handle vendor specific protocols on top > of TS 27.010 with serdev drivers. I took all three series ( [PATCHv3 0/3] Lost key-up interrupt handling for omap4-keypa [PATCH 1/3] Input: atmel_mxt_ts - use runtime PM instead of [PATCHv5 0/4] n_gsm serdev support and protocol driver for d ) and applied them on top of next-20200320. Good news is that result boots. (So I did partial testing of the patches). Bad news is that I still don't have working backlight. I do have LED and there's backlight device connected to the LED, so I can't control the LED directly, but the screen is black (and I don't see boot messages either). Before I start debugging, does screen work for you in -next, or do you have some fixes I could try? Thanks and best regards, Pavel --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --R3G7APHDIzY6R/pk Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAl536dYACgkQMOfwapXb+vKBJQCeIUN5N8vMzmkvY9E6nubpW6wN P7IAoKaO0YTconM1rcr4rigfmHCyJeJk =q+Wl -----END PGP SIGNATURE----- --R3G7APHDIzY6R/pk--