Messages in this thread | | | Date | Sat, 25 Jan 2020 00:18:26 +0100 | From | Pavel Machek <> | Subject | Re: [PATCH 4.19 014/639] leds: tlc591xx: update the maximum brightness |
| |
On Fri 2020-01-24 10:23:04, Greg Kroah-Hartman wrote: > From: Jean-Jacques Hiblot <jjhiblot@ti.com> > > commit a2cafdfd8cf5ad8adda6c0ce44a59f46431edf02 upstream. > > The TLC chips actually offer 257 levels: > - 0: led OFF > - 1-255: Led dimmed is using a PWM. The duty cycle range from 0.4% to 99.6% > - 256: led fully ON > > Fixes: e370d010a5fe ("leds: tlc591xx: Driver for the TI 8/16 Channel i2c LED driver") > Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com> > Signed-off-by: Pavel Machek <pavel@ucw.cz> > Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Its a new feature, really and quite unusual one: 257 brightness levels is not usual. It is theoretically safe, but...
Lets not do that for -stable.
(I'm a LED maintainer).
Best regards, Pavel
-- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html [unhandled content-type:application/pgp-signature] | |