From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tomi Valkeinen Subject: Re: [PATCH v2 2/7] drm/tilcdc: Add blue-and-red-crossed devicetree property Date: Tue, 30 Aug 2016 15:46:36 +0300 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="5GPDDLPgguWtci7xGaRKGrqoJ5vFrTDCL" Return-path: In-Reply-To: Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Jyri Sarha , Rob Herring Cc: dri-devel , "devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , Benoit Cousson , Tony Lindgren , David Airlie , Daniel Vetter , Laurent Pinchart , Peter Ujfalusi , Karl Beldan List-Id: dri-devel@lists.freedesktop.org --5GPDDLPgguWtci7xGaRKGrqoJ5vFrTDCL Content-Type: multipart/mixed; boundary="JNBsKs642w5Rb4hUtRgPwE4h4VSHUELLA"; protected-headers="v1" From: Tomi Valkeinen To: Jyri Sarha , Rob Herring Cc: dri-devel , "devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , Benoit Cousson , Tony Lindgren , David Airlie , Daniel Vetter , Laurent Pinchart , Peter Ujfalusi , Karl Beldan Message-ID: Subject: Re: [PATCH v2 2/7] drm/tilcdc: Add blue-and-red-crossed devicetree property References: In-Reply-To: --JNBsKs642w5Rb4hUtRgPwE4h4VSHUELLA Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable On 26/08/16 20:44, Jyri Sarha wrote: > On 08/26/16 15:51, Rob Herring wrote: >>> --- a/Documentation/devicetree/bindings/display/tilcdc/tilcdc.txt >>>> +++ b/Documentation/devicetree/bindings/display/tilcdc/tilcdc.txt >>>> @@ -17,6 +17,8 @@ Optional properties: >>>> the lcd controller. >>>> - max-pixelclock: The maximum pixel clock that can be supported >>>> by the lcd controller in KHz. >>>> + - blue-and-red-crossed: Boolean property, set this of blue and red= wires >>>> + for LCD_DATA are crossed for 24-bit RGB support (and 16-bit BGR = mode). [1] >> Doesn't this need to be blue-and-red-straight for compatibility? >> >=20 > There is no way to be backward compatible with all am3 based devices. Hmm, I guess it would be possible to have three options: - No property set: driver advertises RG16 and RG24. This is wrong, but that's what the current status is, right? - Property set to "default" or "straight" or whatever: driver says RG16 and BG24 - Property set to "crossed": driver says BG16 and RG24 Tomi --JNBsKs642w5Rb4hUtRgPwE4h4VSHUELLA-- --5GPDDLPgguWtci7xGaRKGrqoJ5vFrTDCL 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 iQIcBAEBCAAGBQJXxYAsAAoJEPo9qoy8lh71HRcP/RDuNAviZle31YVT54JNu98f YHvq1qyLXdnN3cPecmAaEfkHSa76Hb3BbYaH+v/DtUY5h3TLLVbpEHA/hhYHJU0M ixK+W3eC8xkMp29f4tTMo7QUlQY6OVx5WtOECOzby64g0S1q0Nw/Nfa/s5QGOP6F ZSERQgv1c4iTOBZN4K0iQ7hUJ9N3AbmTl7YrYeKiuKTNfRVnx8YRGabn2aJAxpZS LOh7jnTQmWLOlBSv53z04053HQa9NjsQDGlkWmZKVZo/7JWlIzW6v7pfYVOk4IJi O0MS4ZoRDYGUkeSiKUkKMKgw1d5no3lDjnNDDtA87YTJsGFZlrx8RzYECT8WsW09 cBnMmA3rgQLRkqi1ilfVSngWFbmJrjMk7wjwRbkMlcxEduuICoUlpB9f+jtugaq2 08ZdDw7RgAEkpd8TJaLpSPg2IxsEh26Je2fxS+r5gYu9GOcZqB5sCOkNt+pE4O8D rxUcYa6L4BIfHH56KzCJta9eb2ucbNVMbxq/q15jxaave60TBsr/w643+OileXK9 /DO0dm/edrcAW5m9ljbHFvWBBPz76pLfABlCKLctVUDQ9zuKwnXQ/P5JE8CJGycR Q3w4p4ak/gtSGRSz9WyMIIdTLhf/C03+qAv48Mq3gpH84b5hDfHlDvjJioi5Fwfx tgz9kqQCu0x8toCvUNex =yduF -----END PGP SIGNATURE----- --5GPDDLPgguWtci7xGaRKGrqoJ5vFrTDCL-- -- 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