From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tomi Valkeinen Subject: Re: [PATCH 6/6] ARM: dts: omap4-droid4: Add LCD Date: Mon, 20 Mar 2017 09:52:20 +0200 Message-ID: <9c4a5d88-4d2a-2120-9fdf-f3fbba69147c@ti.com> References: <20170305054359.8293-1-tony@atomide.com> <20170305054359.8293-7-tony@atomide.com> <20170319012927.kmyqngprpip7le4m@earth> <20170319161030.GA20572@atomide.com> <20170319225542.ts53qpwdhdrmy2ac@earth> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="Vujr69NBkmhFA3CGvWht0f4LOfvwE5bFG" Return-path: In-Reply-To: <20170319225542.ts53qpwdhdrmy2ac@earth> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Sebastian Reichel , Tony Lindgren Cc: linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, =?UTF-8?Q?Beno=c3=aet_Cousson?= , devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Marcel Partap , Michael Scott List-Id: devicetree@vger.kernel.org --Vujr69NBkmhFA3CGvWht0f4LOfvwE5bFG Content-Type: multipart/mixed; boundary="nritWwl2v88hfWSsnSBP1hk1PqwNTJsI6"; protected-headers="v1" From: Tomi Valkeinen To: Sebastian Reichel , Tony Lindgren Cc: linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, =?UTF-8?Q?Beno=c3=aet_Cousson?= , devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Marcel Partap , Michael Scott Message-ID: <9c4a5d88-4d2a-2120-9fdf-f3fbba69147c-l0cyMroinI0@public.gmane.org> Subject: Re: [PATCH 6/6] ARM: dts: omap4-droid4: Add LCD References: <20170305054359.8293-1-tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org> <20170305054359.8293-7-tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org> <20170319012927.kmyqngprpip7le4m@earth> <20170319161030.GA20572-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org> <20170319225542.ts53qpwdhdrmy2ac@earth> In-Reply-To: <20170319225542.ts53qpwdhdrmy2ac@earth> --nritWwl2v88hfWSsnSBP1hk1PqwNTJsI6 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable On 20/03/17 00:55, Sebastian Reichel wrote: > Hi, >=20 > On Sun, Mar 19, 2017 at 09:10:30AM -0700, Tony Lindgren wrote: >> * Sebastian Reichel [170318 18:31]: >>> Hi, >>> >>> On Sat, Mar 04, 2017 at 09:43:59PM -0800, Tony Lindgren wrote: >>>> The LCD panel on droid 4 is a command mode LCD. The binding follows >>>> the standard omapdrm binding and the changes needed for omapdrm comm= and >>>> mode panels are posted separately. >>>> >>>> Cc: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org >>>> Cc: Marcel Partap >>>> Cc: Michael Scott >>>> Cc: Sebastian Reichel >>>> Cc: Tomi Valkeinen >>>> Signed-off-by: Tony Lindgren >>> >>> Tested-By: Sebastian Reichel >>> >>> With a non-modular kernel lcd is not working with omapdrm if HDMI >>> is enabled. After dropping HDMI in droid4's dts file everything >>> worked as expected. I assume both work properly with a modular >>> kernel? >> >> Yes with loadable modules both work just fine. If things do not >> work properly as built-in, chances are there's some unhandled >> dependency that needs -EPROBE_DEFER somewhere for a regulator >> or a clock. >=20 > I think that would also result in problems with disabled HDMI. > I guess the problem is, that omapdrm is initialized too early. > AFAIK omapdrm is not hotplug-capable. It shouldn't matter when omapdrm is initialized. omapdrm should wait until it has all the displays. Tomi --nritWwl2v88hfWSsnSBP1hk1PqwNTJsI6-- --Vujr69NBkmhFA3CGvWht0f4LOfvwE5bFG Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBCAAGBQJYz4o0AAoJEPo9qoy8lh71RywP/1W0XVUmCrVb6oX9T1MLx6P9 GZ9pRfQi62wAsDr5jQNa6+FhDUxY2CrviHziOiy+nJLI5jXH1O2Yw68l6oFFxGpU 9KAj9urfkNKCwXI4IpYpAEmkpI5dm/CdW0+H31n8Co9qlelekDfXOQVupUP12dkx AbyazDWxTiaEDflVmvpl/72ZZFI1/x72NhTvFcZ3o9u1gSvbH+2WcO0fbCcnHpb1 jpYl8LXUNxkJ68Ws/WjZASkKmdWaggV0ap1XxW4nH2sDvWUkNRX0UNByb3KXgajc mUStm2+4RNLp7LhOcnSR+yJzjPfHt73h49oexz63thFGqnnwDgT/ZhMmjcw5Vp8q VHUmjuIeMZfrMHF8q9bJijAfEYpJUCVLJYmrxkSSL/fKGY9txjGH4nULjtBG4y52 Mg8T0lfdCtEgDTwJhvJjm0YjE58cDVilwIPoVtcl274AXIV7380ZBiK20x/YV9Fj U9ijqcF86ghX//w+cOdYRRvWwKCSe9dlIQQ7/WugtfB7FNjudGJDCyZ+ovs9wtpc hs4Z8lF9bM7qag2P+42wmQVhCiNm3BA7bZ+OCmfR1oxZJqA1tY9/DbhXQdgrxanz QHxK1Xwqj5YatnChRuFJwFngvPAOzwfhp/FL7LByt8tYUJWNIUik+VxCk4p/fgQp pRrXWT1qo/vkLQvJ9Xze =FKm9 -----END PGP SIGNATURE----- --Vujr69NBkmhFA3CGvWht0f4LOfvwE5bFG-- -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html