From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753548AbaLDKAA (ORCPT ); Thu, 4 Dec 2014 05:00:00 -0500 Received: from comal.ext.ti.com ([198.47.26.152]:42058 "EHLO comal.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753211AbaLDJ76 (ORCPT ); Thu, 4 Dec 2014 04:59:58 -0500 Message-ID: <5480308F.6070607@ti.com> Date: Thu, 4 Dec 2014 11:59:43 +0200 From: Tomi Valkeinen User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.3.0 MIME-Version: 1.0 To: "Li.Xiubo@freescale.com" CC: Arnd Bergmann , "plagnioj@jcrosoft.com" , "linux-fbdev@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "shawn.guo@linaro.org" , "alexander.stein@systec-electronic.com" Subject: Re: [PATCHv2 0/4] LS1021A: Add dcfb framebuffer driver support. References: <1417598162-40433-1-git-send-email-Li.Xiubo@freescale.com> <4810522.t9QFQYHtHI@wuerfel> <548016D9.6030006@ti.com> <548024C7.3060004@ti.com> In-Reply-To: Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="v3vJbD6ricPu0Nex7CWVcae8Bu9VAiSAG" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --v3vJbD6ricPu0Nex7CWVcae8Bu9VAiSAG Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable On 04/12/14 11:54, Li.Xiubo@freescale.com wrote: > Hi Tomi, >=20 > Thanks for your information very much. >=20 >>> Sorry for confusing, it was delayed for other reasons internal. >>> >>> I am not familiar about the DRM, and I'd like to know if the DRM driv= er will >> be >>> support, should I also develop the libdrm too ? Or just coding in ker= nel >> level ? >> >> For simple drm drivers (this looks like it would be a simple one), I >> don't think there's any need for libdrm support. The generic DRM >> interfaces should be enough, so just kernel level coding needed. >> >=20 > That's to say, if I am using the X11 server without any code in usrspac= e, > If the DRM driver will support /dev/fbX, it could work correctly ? Yes. DRM offers helper code to add /dev/fbX with not too many lines. You can look at the docs and drm_fb_helper.c. And X11 should work fine on top of that, using the X11 fbdev support. Tomi --v3vJbD6ricPu0Nex7CWVcae8Bu9VAiSAG Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBAgAGBQJUgDCPAAoJEPo9qoy8lh71C6oP/2j/ewerlhm3Ed0f92cLNHSV PQOZtAwAkFeCi7nbqEmKQfLTSilK89lxcEcDVH6YSUPp5Mstaaya+meNlJwUazVg tglLuqamgIwRSSBd8nqlPn4uOr5yfrHFvtawYgy+yPoUaOGZpoviAn75dENOTXor 5ouQ4bUiPz6SlbRPnWWWzkgvZZaZ/S1w1KCEh1XPr+7f5z9fBWTTGhtERaHps3rd iw/gnnBteavHz7h1RZnV7CKELWa5fePMTz6jhTgsiQtDwnEmTHAGHWgOFxpJOisv 6qtxf5hCc0cu8SGndvRDuSwcp17F70Wc/1fBhwLIH2/6hviIZa5bPtkmt7fK8cUe n59FrxeiNvxXQ4ERKPUOPp9fNL5fZuFHgivh0XFFf7WOX1MGC/phFZ1C4g3e1JgG KxROKMVPiZouYQO/T6cvmK57RZX3+l51EklS5sm7ZuniLTH7fgX8kblTYyAZziVW z+sV9WVPKZwmoVasnC0T6HzBejvsCw3AvtIqBwp7gKXsKmkFRkjuclYDQVjMjsBD f01YytLU4Awv2fIKVrkiYyvlueAJU9JVzY+5X7uasQDjngdf4/3a1nOU18dpEIKf Oc/QNVzyBBrpYS8Tp1rXpniuwbzACb2dqd0LEvd4eSDTF37LvphGRMmGByiTPX+L sZFNd9mlk6zcoGMFUkhT =nziE -----END PGP SIGNATURE----- --v3vJbD6ricPu0Nex7CWVcae8Bu9VAiSAG-- From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tomi Valkeinen Date: Thu, 04 Dec 2014 09:59:43 +0000 Subject: Re: [PATCHv2 0/4] LS1021A: Add dcfb framebuffer driver support. Message-Id: <5480308F.6070607@ti.com> MIME-Version: 1 Content-Type: multipart/mixed; boundary="v3vJbD6ricPu0Nex7CWVcae8Bu9VAiSAG" List-Id: References: <1417598162-40433-1-git-send-email-Li.Xiubo@freescale.com> <4810522.t9QFQYHtHI@wuerfel> <548016D9.6030006@ti.com> <548024C7.3060004@ti.com> In-Reply-To: To: "Li.Xiubo@freescale.com" Cc: Arnd Bergmann , "plagnioj@jcrosoft.com" , "linux-fbdev@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "shawn.guo@linaro.org" , "alexander.stein@systec-electronic.com" --v3vJbD6ricPu0Nex7CWVcae8Bu9VAiSAG Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable On 04/12/14 11:54, Li.Xiubo@freescale.com wrote: > Hi Tomi, >=20 > Thanks for your information very much. >=20 >>> Sorry for confusing, it was delayed for other reasons internal. >>> >>> I am not familiar about the DRM, and I'd like to know if the DRM driv= er will >> be >>> support, should I also develop the libdrm too ? Or just coding in ker= nel >> level ? >> >> For simple drm drivers (this looks like it would be a simple one), I >> don't think there's any need for libdrm support. The generic DRM >> interfaces should be enough, so just kernel level coding needed. >> >=20 > That's to say, if I am using the X11 server without any code in usrspac= e, > If the DRM driver will support /dev/fbX, it could work correctly ? Yes. DRM offers helper code to add /dev/fbX with not too many lines. You can look at the docs and drm_fb_helper.c. And X11 should work fine on top of that, using the X11 fbdev support. Tomi --v3vJbD6ricPu0Nex7CWVcae8Bu9VAiSAG Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBAgAGBQJUgDCPAAoJEPo9qoy8lh71C6oP/2j/ewerlhm3Ed0f92cLNHSV PQOZtAwAkFeCi7nbqEmKQfLTSilK89lxcEcDVH6YSUPp5Mstaaya+meNlJwUazVg tglLuqamgIwRSSBd8nqlPn4uOr5yfrHFvtawYgy+yPoUaOGZpoviAn75dENOTXor 5ouQ4bUiPz6SlbRPnWWWzkgvZZaZ/S1w1KCEh1XPr+7f5z9fBWTTGhtERaHps3rd iw/gnnBteavHz7h1RZnV7CKELWa5fePMTz6jhTgsiQtDwnEmTHAGHWgOFxpJOisv 6qtxf5hCc0cu8SGndvRDuSwcp17F70Wc/1fBhwLIH2/6hviIZa5bPtkmt7fK8cUe n59FrxeiNvxXQ4ERKPUOPp9fNL5fZuFHgivh0XFFf7WOX1MGC/phFZ1C4g3e1JgG KxROKMVPiZouYQO/T6cvmK57RZX3+l51EklS5sm7ZuniLTH7fgX8kblTYyAZziVW z+sV9WVPKZwmoVasnC0T6HzBejvsCw3AvtIqBwp7gKXsKmkFRkjuclYDQVjMjsBD f01YytLU4Awv2fIKVrkiYyvlueAJU9JVzY+5X7uasQDjngdf4/3a1nOU18dpEIKf Oc/QNVzyBBrpYS8Tp1rXpniuwbzACb2dqd0LEvd4eSDTF37LvphGRMmGByiTPX+L sZFNd9mlk6zcoGMFUkhT =nziE -----END PGP SIGNATURE----- --v3vJbD6ricPu0Nex7CWVcae8Bu9VAiSAG--