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=-5.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=ham 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 0BCE1C00523 for ; Sun, 5 Jan 2020 23:56:04 +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 D462B20659 for ; Sun, 5 Jan 2020 23:56:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="mvrQ38dO" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D462B20659 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=0foql6zNisAsJvQGZ0TuTb+iyKUmXgVKbJcb4H+zzbw=; b=mvrQ38dOPy4/s7RklV0mIAj/P URnWtHx+Ihpi9n+9aVffAM9T6UDm00vJ/ElZ64uRfKaBlk+mB1N/wM7keBDTFtjj7/g2v/72fGAb0 6Q7GT9Wyn30pXA+vSZ00NYati/xVu1VCt0vkTUKPHZtF+fQIBUbR4ldqVsfqxd367QWIN1YWVolPi JZYkQlNpLYo7Rgv8vW98tN8Q+9KLgqsmFQNJY4tPHJJ5+KUBXIm15RIEaIxUB7H3H6L8jnaFVOK52 0tC8wQs3uTvBHCd2LKJimMzIjgXAM7hi/bYU6YwNRlZZJPNKk/74PLRvoXa+4eAodCQaju8wxgZmB 0MRqiz0tw==; 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 1ioFkW-0007VS-Cu; Sun, 05 Jan 2020 23:56:00 +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 1ioFkS-0007UC-G0 for linux-arm-kernel@lists.infradead.org; Sun, 05 Jan 2020 23:55:58 +0000 Received: by jabberwock.ucw.cz (Postfix, from userid 1017) id 4A0E11C2453; Mon, 6 Jan 2020 00:55:52 +0100 (CET) Date: Mon, 6 Jan 2020 00:55:51 +0100 From: Pavel Machek To: Tony Lindgren , linux-leds@vger.kernel.org Subject: Re: LED backlight on Droid 4 and others Message-ID: <20200105235551.GB7598@amd> References: <20200105183202.GA17784@duo.ucw.cz> <20200105202449.GC5885@atomide.com> MIME-Version: 1.0 In-Reply-To: <20200105202449.GC5885@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-20200105_155556_685269_006EF8C0 X-CRM114-Status: GOOD ( 17.44 ) 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, 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@linaro.org, agx@sigxcpu.org, linux-arm-kernel Content-Type: multipart/mixed; boundary="===============4047658726072587278==" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org --===============4047658726072587278== Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="s2ZSL+KKDSLx8OML" Content-Disposition: inline --s2ZSL+KKDSLx8OML 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. >=20 > I agree, this is badly needed for many devices. >=20 > > [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 > I have some version of these patches working with modified dts in my > droid4-pending-v5.4 branch git branch, maybe try to diff against that. So.. backlight now works for me, and I put the LED parts of the patches to gitolite.kernel.org:pub/scm/linux/kernel/git/pavel/linux-leds.git for-next tree. [I guess I could try to sneak them into 5.5 if that helps.] Could we somehow get this to the backlight tree? commit d457d0c97d6d55fe3e62633791ac05d289a37d2e Author: Tomi Valkeinen Date: Thu Oct 3 10:28:12 2019 +0200 backlight: add led-backlight driver This patch adds a led-backlight driver (led_bl), which is similar to pwm_bl except the driver uses a LED class driver to adjust the brightness in the HW. Multiple LEDs can be used for a single backlight. Signed-off-by: Tomi Valkeinen Signed-off-by: Jean-Jacques Hiblot Acked-by: Pavel Machek Reviewed-by: Daniel Thompson Best regards, Pavel --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --s2ZSL+KKDSLx8OML Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAl4Sd4cACgkQMOfwapXb+vKtigCcD7s9rcf8yUC1oR22yqA5RyON RW4AmgOniJ4uj2z21/PEdlR5LnqhdCB/ =7Rz5 -----END PGP SIGNATURE----- --s2ZSL+KKDSLx8OML-- --===============4047658726072587278== 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 --===============4047658726072587278==--