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=-2.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,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 4CDE0C352A4 for ; Wed, 12 Feb 2020 20:16:59 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 1B61224677 for ; Wed, 12 Feb 2020 20:16:59 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Ocglr/CY" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1B61224677 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ucw.cz Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender:Content-Type:Cc: List-Subscribe:List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: In-Reply-To:MIME-Version:References:Message-ID:Subject:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=618lKBF2E/ghukTlX098UO0AbOFIytUh/Igc9sn8fL4=; b=Ocglr/CYq/CqFCSNZvXeWdHrr pHdIysFXALwWWvgsoJIHFb9RCk0zXLV+BKoa7eoMWYAy7uTgROA0ALMYNDq1y08s1zUcPFVqc6B3g Jqpv/vUIT5UlJJDB0YIQOBc6oeYfjdmt3Nh8M7YO/nVEZG1j9Ypw7qJvRE4AyXWiHytxpOvDm/ofI RKXArJkdN46/vJ/xPIYcYAEkpG8VUrdjUWEhcrWRpc4UVysh2EGwasy/wd9pGJkX14149zqhTLCVt 0JqSvH4QUs+1hDVHc5/97JUeD5GfERGYCXey54O9hr7wxgGA+X2rsK82XqAFS98QCkF2qEbjKGcI1 JovZ2K3NQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1j1yRG-0004dW-SK; Wed, 12 Feb 2020 20:16:50 +0000 Received: from jabberwock.ucw.cz ([46.255.230.98]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1j1yRC-0004bW-R8 for linux-arm-kernel@lists.infradead.org; Wed, 12 Feb 2020 20:16:48 +0000 Received: by jabberwock.ucw.cz (Postfix, from userid 1017) id CF1E11C0370; Wed, 12 Feb 2020 21:16:38 +0100 (CET) Date: Wed, 12 Feb 2020 21:16:38 +0100 From: Pavel Machek To: Tony Lindgren Subject: Re: LED backlight on Droid 4 and others Message-ID: <20200212201638.GB20085@amd> References: <20200105183202.GA17784@duo.ucw.cz> <20200106084549.GA14821@dell> <20200211172900.GH64767@atomide.com> MIME-Version: 1.0 In-Reply-To: <20200211172900.GH64767@atomide.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200212_121647_032635_95ABA030 X-CRM114-Status: GOOD ( 23.93 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: daniel.thompson@linaro.org, mpartap@gmx.net, tony@atomide.com, jingoohan1@gmail.com, merlijn@wizzup.org, martin_rysavy@centrum.cz, kernel list , dri-devel@lists.freedesktop.org, sre@kernel.org, nekit1000@gmail.com, tomi.valkeinen@ti.com, jjhiblot@ti.com, linux-omap@vger.kernel.org, Lee Jones , agx@sigxcpu.org, linux-arm-kernel Content-Type: multipart/mixed; boundary="===============0498089880294350585==" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org --===============0498089880294350585== Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="QKdGvSO+nmPlgiQ/" Content-Disposition: inline --QKdGvSO+nmPlgiQ/ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi! > > > It would be good to get LED backlight to work in clean way for 5.6 > > > kernel. > ... > > > [If you have an idea what else is needed, it would be welcome; it > > > works for me in development tree but not in tree I'd like to > > > upstream.] > > >=20 > > > Lee, would you be willing to take "backlight: add led-backlight > > > driver"? Would it help if I got "leds: Add managed API to get a LED > > > from a device driver" and "leds: Add of_led_get() and led_put()" into > > > for_next tree of the LED subsystem? > >=20 > > It looks like you have an open question from Tony on v10. > >=20 > > Is that patch orthogonal, or are there depend{ants,encies}? >=20 > Uhh looks like we messed up a bit with integration. Now droid4 > LCD backlight can no longer be enabled at all manually in v5.6-rc1 > without the "add led-backlight driver" patch.. Should we just > merge it to fix it rather than start scrambling with other > temporary hacks? We should just merge the "add led-backlight driver". Everything should be ready for it. I'm sorry if I broke something working, I was not aware it worked at all. Unfortunately, this is backlight code, not LED, so I can't just merge it. > I don't care if we use "default-brightness", or if we use > "default-brightness-level". The binding merged says now > "default-brightness", so let's go with that one. That's what > other LED drivers are using too. No opinion on that. Best regards, Pavel --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --QKdGvSO+nmPlgiQ/ Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAl5EXSYACgkQMOfwapXb+vICqQCfdtyPBlJKQO90lCtkFWlVhCoQ XaAAoILSfdQrM5bUUqiTeghX0xqVkkHp =vMQC -----END PGP SIGNATURE----- --QKdGvSO+nmPlgiQ/-- --===============0498089880294350585== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel --===============0498089880294350585==--