From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sebastian Reichel Subject: Re: 3-color led too bright Date: Sun, 31 Jan 2016 01:24:07 +0100 Message-ID: <20160131002406.GA21238@earth> References: <20160130200750.GB30429@amd> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="+QahgC5+KEYLbs62" Return-path: Content-Disposition: inline In-Reply-To: <20160130200750.GB30429@amd> Sender: linux-kernel-owner@vger.kernel.org To: Pavel Machek Cc: pali.rohar@gmail.com, kernel list , linux-arm-kernel , linux-omap@vger.kernel.org, tony@atomide.com, khilman@kernel.org, aaro.koskinen@iki.fi, ivo.g.dimitrov.75@gmail.com, patrikbachan@gmail.com, serge@hallyn.com List-Id: linux-omap@vger.kernel.org --+QahgC5+KEYLbs62 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Hi Pavel, On Sat, Jan 30, 2016 at 09:07:50PM +0100, Pavel Machek wrote: > The indicator 3-color LED in mainline kernel seem to be a bit too > bright. .. more bright to look at comfortably. I believe it is also > brighter than in original maemo... I believe I've seen note somewhere > that hardware may allow too much current to the 3-color led damaging > hardware... but I can't find the link now. Safe current limits for the leds are configured in the DTS (led-cur and max-cur) and can be checked in sysfs. I remember testing the safety limits when I added them to DT, but the driver has changed a bit since then. -- Sebastian --+QahgC5+KEYLbs62 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBCgAGBQJWrVQkAAoJENju1/PIO/qa0EkQAJR2ATyWfe43E85/gqeO0Mct qyIStKG4nx4el6xEcsfXvInfInuUgt70NQo11SH1WD3ug9Xl3nOV/aj9rN5k3OdM 2Na7RQjOEpncpOi6ALFkPoJInOt1hFD2qbaN1yVSIyase3SHmdOgxJKTT3GbnEQ1 atn241gubQ2yJFowPE5A9CJSiYPAe8kO+9tZ2wP6610ky/TNTE9lG/Cg6R+ZXVp2 2hJFYO33MT9M6aKRY3IZFALxIBwNxi50fcr/fCTwOOw/9RIzJO8pWZx87cxRRINz MLP+Mjrf3RaXqCuCgpWqQLNDROl+iEmTFCKp7/+2LEcUkrCr8ZN0T2YZrSMVk0hP HeAHJGV6/v7aYGOVTwYg0lhjNYYbvLE9tg7IYIjmmPI3T8s95+CdPvY444kPK5Lr /ryhjDPshVZ08cuufAcEQZIyWyyAIW3JyxptTCzl5tb0fA5yOwMDTTkzklgsISlq Fkx3KHIGjRJyiKqcBg3JCTFebcc9KqzuqD8P8BVc4qkwlaxopgam0sqQZWk51SWO 0rFFbqocVvwQGxVNDTln1R/GZOe+piIfe9b78ImuSlVV5NihNrYPTZA8xymd5qGG YshTfuqvLMMEZaVU8fI1cJSckaUaei2wiuFDksF47+Wk5ZZMyCUYxMP6Iou9Cajh NrSgVBBilS5tPibvPCQ2 =UAEQ -----END PGP SIGNATURE----- --+QahgC5+KEYLbs62--