From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavel Machek Subject: Re: LED backlight on Droid 4 and others Date: Mon, 6 Jan 2020 00:55:51 +0100 Message-ID: <20200105235551.GB7598@amd> References: <20200105183202.GA17784@duo.ucw.cz> <20200105202449.GC5885@atomide.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1151245500==" Return-path: In-Reply-To: <20200105202449.GC5885@atomide.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Tony Lindgren , linux-leds@vger.kernel.org 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 List-Id: linux-omap@vger.kernel.org --===============1151245500== 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-- --===============1151245500== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel --===============1151245500==--