From mboxrd@z Thu Jan 1 00:00:00 1970 From: moinejf@free.fr (Jean-Francois Moine) Date: Mon, 13 Jan 2014 17:07:07 +0100 Subject: [PATCH v2 15/28] drm/i2c: tda998x: use the tda998x video format when cea mode In-Reply-To: <20140111181832.GD15937@n2100.arm.linux.org.uk> References: <20140109120448.24d89eba@armhf> <20140111181832.GD15937@n2100.arm.linux.org.uk> Message-ID: <20140113170707.10b908dc@armhf> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Sat, 11 Jan 2014 18:18:32 +0000 Russell King - ARM Linux wrote: > On Thu, Jan 09, 2014 at 12:04:48PM +0100, Jean-Francois Moine wrote: > > This patch uses the tda998x video format tied to the CEA mode. > > This reduces the number of i2c exchanges. > > It is my understanding that one of the major design goals of this driver > is to avoid the use of such a table, and therefore this change is > undesirable by the original driver authors. This is more a comment for > Rob to pick up on. I retrieved a message from Rabeeh who got this description from NXP (http://www.solid-run.com/phpbb/viewtopic.php?f=9&t=1205&start=10 Thu Mar 28, 2013 10:59 am): 1. write register FF of CEC device to &h87. (68ff = 87h) -> activate all clock tree inc HDMI ones so you can then use HDMI device 2. select page 00 of HDMI device : write 00 in FF (e0ff =00h) 3. write register A0 of HDMI device to select predefined format : (e0a0 = 06h) -> select a predefined 1080p60 format 4. write registers A5 and A6 with total number of pixels per line (or greater value) (e0a5 = 08h) (e0a6 = 97h) for example 5. write register TBG_CTRL1 of HDMI device to select resync method (e0cb = 7ch) -> select 6. write registers VIP_CTRL to configure RGB input ports : (e020 = 45h) -> select VP port configuration (e021 = 01h) (e022 = 23h) 7. write register VIP_CTRL3 to 20h vto select external SP sync method (e023 = 20h) -- Ken ar c'henta? | ** Breizh ha Linux atav! ** Jef | http://moinejf.free.fr/ From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jean-Francois Moine Subject: Re: [PATCH v2 15/28] drm/i2c: tda998x: use the tda998x video format when cea mode Date: Mon, 13 Jan 2014 17:07:07 +0100 Message-ID: <20140113170707.10b908dc@armhf> References: <20140109120448.24d89eba@armhf> <20140111181832.GD15937@n2100.arm.linux.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from smtp1-g21.free.fr (smtp1-g21.free.fr [212.27.42.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 663B211F02F for ; Mon, 13 Jan 2014 08:07:35 -0800 (PST) In-Reply-To: <20140111181832.GD15937@n2100.arm.linux.org.uk> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dri-devel-bounces@lists.freedesktop.org Errors-To: dri-devel-bounces@lists.freedesktop.org To: Russell King - ARM Linux Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org T24gU2F0LCAxMSBKYW4gMjAxNCAxODoxODozMiArMDAwMApSdXNzZWxsIEtpbmcgLSBBUk0gTGlu dXggPGxpbnV4QGFybS5saW51eC5vcmcudWs+IHdyb3RlOgoKPiBPbiBUaHUsIEphbiAwOSwgMjAx NCBhdCAxMjowNDo0OFBNICswMTAwLCBKZWFuLUZyYW5jb2lzIE1vaW5lIHdyb3RlOgo+ID4gVGhp cyBwYXRjaCB1c2VzIHRoZSB0ZGE5OTh4IHZpZGVvIGZvcm1hdCB0aWVkIHRvIHRoZSBDRUEgbW9k ZS4KPiA+IFRoaXMgcmVkdWNlcyB0aGUgbnVtYmVyIG9mIGkyYyBleGNoYW5nZXMuCj4gCj4gSXQg aXMgbXkgdW5kZXJzdGFuZGluZyB0aGF0IG9uZSBvZiB0aGUgbWFqb3IgZGVzaWduIGdvYWxzIG9m IHRoaXMgZHJpdmVyCj4gaXMgdG8gYXZvaWQgdGhlIHVzZSBvZiBzdWNoIGEgdGFibGUsIGFuZCB0 aGVyZWZvcmUgdGhpcyBjaGFuZ2UgaXMKPiB1bmRlc2lyYWJsZSBieSB0aGUgb3JpZ2luYWwgZHJp dmVyIGF1dGhvcnMuICBUaGlzIGlzIG1vcmUgYSBjb21tZW50IGZvcgo+IFJvYiB0byBwaWNrIHVw IG9uLgoKSSByZXRyaWV2ZWQgYSBtZXNzYWdlIGZyb20gUmFiZWVoIHdobyBnb3QgdGhpcyBkZXNj cmlwdGlvbiBmcm9tIE5YUAooaHR0cDovL3d3dy5zb2xpZC1ydW4uY29tL3BocGJiL3ZpZXd0b3Bp Yy5waHA/Zj05JnQ9MTIwNSZzdGFydD0xMAogVGh1IE1hciAyOCwgMjAxMyAxMDo1OSBhbSk6Cgox LiB3cml0ZSByZWdpc3RlciBGRiBvZiBDRUMgZGV2aWNlIHRvICZoODcuCiAgICAgICAgICAgICAg ICAoNjhmZiA9IDg3aCkgICAgICAgICAgIC0+IGFjdGl2YXRlIGFsbCBjbG9jayB0cmVlIGluYyBI RE1JIG9uZXMgc28geW91IGNhbiB0aGVuIHVzZSBIRE1JIGRldmljZQoyLiBzZWxlY3QgcGFnZSAw MCBvZiBIRE1JIGRldmljZSA6ICB3cml0ZSAwMCBpbiBGRgogICAgICAgICAgICAgICAgKGUwZmYg PTAwaCkKMy4gd3JpdGUgcmVnaXN0ZXIgQTAgb2YgSERNSSBkZXZpY2UgdG8gc2VsZWN0IHByZWRl ZmluZWQgZm9ybWF0IDoKICAgICAgICAgICAgICAgIChlMGEwID0gMDZoKSAgICAgICAtPiBzZWxl Y3QgYSBwcmVkZWZpbmVkIDEwODBwNjAgZm9ybWF0CjQuIHdyaXRlIHJlZ2lzdGVycyBBNSBhbmQg QTYgd2l0aCB0b3RhbCBudW1iZXIgb2YgcGl4ZWxzIHBlciBsaW5lIChvciBncmVhdGVyIHZhbHVl KQogICAgICAgICAgICAgICAgKGUwYTUgPSAwOGgpCiAgICAgICAgICAgICAgICAoZTBhNiA9IDk3 aCkgZm9yIGV4YW1wbGUKNS4gd3JpdGUgcmVnaXN0ZXIgVEJHX0NUUkwxIG9mIEhETUkgZGV2aWNl IHRvIHNlbGVjdCByZXN5bmMgbWV0aG9kCiAgICAgICAgICAgICAgICAoZTBjYiA9IDdjaCkgICAg ICAgIC0+IHNlbGVjdAo2LiB3cml0ZSByZWdpc3RlcnMgVklQX0NUUkwgdG8gY29uZmlndXJlIFJH QiBpbnB1dCBwb3J0cyA6CiAgICAgICAgICAgICAgICAoZTAyMCA9IDQ1aCkgICAgICAgLT4gc2Vs ZWN0IFZQIHBvcnQgY29uZmlndXJhdGlvbgogICAgICAgICAgICAgICAgKGUwMjEgPSAwMWgpCiAg ICAgICAgICAgICAgICAoZTAyMiA9IDIzaCkKNy4gd3JpdGUgcmVnaXN0ZXIgVklQX0NUUkwzIHRv IDIwaCB2dG8gc2VsZWN0IGV4dGVybmFsIFNQIHN5bmMgbWV0aG9kCiAgICAgICAgICAgICAgICAo ZTAyMyA9IDIwaCkKCi0tIApLZW4gYXIgYydoZW50YcOxCXwJICAgICAgKiogQnJlaXpoIGhhIExp bnV4IGF0YXYhICoqCkplZgkJfAkJaHR0cDovL21vaW5lamYuZnJlZS5mci8KX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KZHJpLWRldmVsIG1haWxpbmcgbGlz dApkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHA6Ly9saXN0cy5mcmVlZGVza3Rv cC5vcmcvbWFpbG1hbi9saXN0aW5mby9kcmktZGV2ZWwK From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754835AbaAMQHm (ORCPT ); Mon, 13 Jan 2014 11:07:42 -0500 Received: from smtp1-g21.free.fr ([212.27.42.1]:59200 "EHLO smtp1-g21.free.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754819AbaAMQHi convert rfc822-to-8bit (ORCPT ); Mon, 13 Jan 2014 11:07:38 -0500 Date: Mon, 13 Jan 2014 17:07:07 +0100 From: Jean-Francois Moine To: Russell King - ARM Linux Cc: Rob Clark , dri-devel@lists.freedesktop.org, Dave Airlie , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH v2 15/28] drm/i2c: tda998x: use the tda998x video format when cea mode Message-ID: <20140113170707.10b908dc@armhf> In-Reply-To: <20140111181832.GD15937@n2100.arm.linux.org.uk> References: <20140109120448.24d89eba@armhf> <20140111181832.GD15937@n2100.arm.linux.org.uk> X-Mailer: Claws Mail 3.9.3 (GTK+ 2.24.22; arm-unknown-linux-gnueabihf) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, 11 Jan 2014 18:18:32 +0000 Russell King - ARM Linux wrote: > On Thu, Jan 09, 2014 at 12:04:48PM +0100, Jean-Francois Moine wrote: > > This patch uses the tda998x video format tied to the CEA mode. > > This reduces the number of i2c exchanges. > > It is my understanding that one of the major design goals of this driver > is to avoid the use of such a table, and therefore this change is > undesirable by the original driver authors. This is more a comment for > Rob to pick up on. I retrieved a message from Rabeeh who got this description from NXP (http://www.solid-run.com/phpbb/viewtopic.php?f=9&t=1205&start=10 Thu Mar 28, 2013 10:59 am): 1. write register FF of CEC device to &h87. (68ff = 87h) -> activate all clock tree inc HDMI ones so you can then use HDMI device 2. select page 00 of HDMI device : write 00 in FF (e0ff =00h) 3. write register A0 of HDMI device to select predefined format : (e0a0 = 06h) -> select a predefined 1080p60 format 4. write registers A5 and A6 with total number of pixels per line (or greater value) (e0a5 = 08h) (e0a6 = 97h) for example 5. write register TBG_CTRL1 of HDMI device to select resync method (e0cb = 7ch) -> select 6. write registers VIP_CTRL to configure RGB input ports : (e020 = 45h) -> select VP port configuration (e021 = 01h) (e022 = 23h) 7. write register VIP_CTRL3 to 20h vto select external SP sync method (e023 = 20h) -- Ken ar c'hentañ | ** Breizh ha Linux atav! ** Jef | http://moinejf.free.fr/