From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rob Herring Subject: Re: [PATCH 01/26] dt-bindings: display: display-timing: Add property to configure sync drive edge Date: Mon, 12 Sep 2016 08:05:20 -0500 Message-ID: <20160912130520.GA9582@rob-hp-laptop> References: <20160901112320.15246-1-peter.ujfalusi@ti.com> <20160901112320.15246-2-peter.ujfalusi@ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Content-Disposition: inline In-Reply-To: <20160901112320.15246-2-peter.ujfalusi@ti.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Peter Ujfalusi Cc: Mark Rutland , devicetree@vger.kernel.org, daniel.vetter@ffwll.ch, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, tomi.valkeinen@ti.com List-Id: devicetree@vger.kernel.org T24gVGh1LCBTZXAgMDEsIDIwMTYgYXQgMDI6MjI6NTVQTSArMDMwMCwgUGV0ZXIgVWpmYWx1c2kg d3JvdGU6Cj4gVGhlcmUgYXJlIGRpc3BsYXkgcGFuZWxzIHdoaWNoIGRlbWFuZHMgdGhhdCB0aGUg c3luYyBzaWduYWwgaXMgZHJpdmVuIG9uCj4gZGlmZmVyZW50IGVkZ2UgdGhhbiB0aGUgcGl4ZWwg ZGF0YS4KPiBXaXRoIHRoZSBzeW5jY2xrLWFjdGl2ZSBwcm9wZXJ0eSB3ZSBjYW4gc3BlY2lmeSB0 aGUgY2xrIGVkZ2UgdG8gYmUgdXNlZCB0bwo+IGRyaXZlIHRoZSBzeW5jIHNpZ25hbC4gV2hlbiB0 aGUgcHJvcGVydHkgaXMgbWlzc2luZyBpdCBpbmRpY2F0ZXMgdGhhdCB0aGUKPiBzeW5jIGlzIGRy aXZlbiBvbiB0aGUgc2FtZSBlZGdlIGFzIHRoZSBwaXhlbCBkYXRhLgo+IAo+IFNpZ25lZC1vZmYt Ynk6IFBldGVyIFVqZmFsdXNpIDxwZXRlci51amZhbHVzaUB0aS5jb20+Cj4gQ0M6IFJvYiBIZXJy aW5nIDxyb2JoK2R0QGtlcm5lbC5vcmc+Cj4gQ0M6IE1hcmsgUnV0bGFuZCA8bWFyay5ydXRsYW5k QGFybS5jb20+Cj4gQ0M6IGRldmljZXRyZWVAdmdlci5rZXJuZWwub3JnCj4gLS0tCj4gIERvY3Vt ZW50YXRpb24vZGV2aWNldHJlZS9iaW5kaW5ncy9kaXNwbGF5L3BhbmVsL2Rpc3BsYXktdGltaW5n LnR4dCB8IDYgKysrKysrCj4gIDEgZmlsZSBjaGFuZ2VkLCA2IGluc2VydGlvbnMoKykKPiAKPiBk aWZmIC0tZ2l0IGEvRG9jdW1lbnRhdGlvbi9kZXZpY2V0cmVlL2JpbmRpbmdzL2Rpc3BsYXkvcGFu ZWwvZGlzcGxheS10aW1pbmcudHh0IGIvRG9jdW1lbnRhdGlvbi9kZXZpY2V0cmVlL2JpbmRpbmdz L2Rpc3BsYXkvcGFuZWwvZGlzcGxheS10aW1pbmcudHh0Cj4gaW5kZXggZTFkNGEwYjU5NjEyLi4x NDM2MjkyZTdhNTYgMTAwNjQ0Cj4gLS0tIGEvRG9jdW1lbnRhdGlvbi9kZXZpY2V0cmVlL2JpbmRp bmdzL2Rpc3BsYXkvcGFuZWwvZGlzcGxheS10aW1pbmcudHh0Cj4gKysrIGIvRG9jdW1lbnRhdGlv bi9kZXZpY2V0cmVlL2JpbmRpbmdzL2Rpc3BsYXkvcGFuZWwvZGlzcGxheS10aW1pbmcudHh0Cj4g QEAgLTMyLDYgKzMyLDEyIEBAIG9wdGlvbmFsIHByb3BlcnRpZXM6Cj4gIAkJCS0gYWN0aXZlIGxv dyAgPSBkcml2ZSBwaXhlbCBkYXRhIG9uIGZhbGxpbmcgZWRnZS8KPiAgCQkJCQlzYW1wbGUgZGF0 YSBvbiByaXNpbmcgZWRnZQo+ICAJCQktIGlnbm9yZWQgICAgID0gaWdub3JlZAo+ICsgLSBzeW5j Y2xrLWFjdGl2ZTogd2l0aAo+ICsJCQktIGFjdGl2ZSBoaWdoID0gZHJpdmUgc3luYyBvbiByaXNp bmcgZWRnZS8KCnJpc2luZyBlZGdlIG9mIHdoYXQ/IHBpeGVsIGNsaz8KCj4gKwkJCQkJc2FtcGxl IHN5bmMgb24gZmFsbGluZyBlZGdlCj4gKwkJCS0gYWN0aXZlIGxvdyAgPSBkcml2ZSBzeW5jIG9u IGZhbGxpbmcgZWRnZS8KPiArCQkJCQlzYW1wbGUgc3luYyBvbiByaXNpbmcgZWRnZQo+ICsJCQkt IG9taXR0ZWQgICAgID0gc2FtZSBjb25maWd1cmF0aW9uIGFzIHBpeGVsY2xrLWFjdGl2ZQo+ICAg LSBpbnRlcmxhY2VkIChib29sKTogYm9vbGVhbiB0byBlbmFibGUgaW50ZXJsYWNlZCBtb2RlCj4g ICAtIGRvdWJsZXNjYW4gKGJvb2wpOiBib29sZWFuIHRvIGVuYWJsZSBkb3VibGVzY2FuIG1vZGUK PiAgIC0gZG91YmxlY2xrIChib29sKTogYm9vbGVhbiB0byBlbmFibGUgZG91YmxlY2xvY2sgbW9k ZQo+IC0tIAo+IDIuOS4zCj4gCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fCmRyaS1kZXZlbCBtYWlsaW5nIGxpc3QKZHJpLWRldmVsQGxpc3RzLmZyZWVkZXNr dG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2Ry aS1kZXZlbAo= From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759175AbcILNF0 (ORCPT ); Mon, 12 Sep 2016 09:05:26 -0400 Received: from mail-oi0-f68.google.com ([209.85.218.68]:36284 "EHLO mail-oi0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758571AbcILNFW (ORCPT ); Mon, 12 Sep 2016 09:05:22 -0400 Date: Mon, 12 Sep 2016 08:05:20 -0500 From: Rob Herring To: Peter Ujfalusi Cc: thierry.reding@gmail.com, airlied@linux.ie, tomi.valkeinen@ti.com, daniel.vetter@ffwll.ch, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Mark Rutland , devicetree@vger.kernel.org Subject: Re: [PATCH 01/26] dt-bindings: display: display-timing: Add property to configure sync drive edge Message-ID: <20160912130520.GA9582@rob-hp-laptop> References: <20160901112320.15246-1-peter.ujfalusi@ti.com> <20160901112320.15246-2-peter.ujfalusi@ti.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160901112320.15246-2-peter.ujfalusi@ti.com> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Sep 01, 2016 at 02:22:55PM +0300, Peter Ujfalusi wrote: > There are display panels which demands that the sync signal is driven on > different edge than the pixel data. > With the syncclk-active property we can specify the clk edge to be used to > drive the sync signal. When the property is missing it indicates that the > sync is driven on the same edge as the pixel data. > > Signed-off-by: Peter Ujfalusi > CC: Rob Herring > CC: Mark Rutland > CC: devicetree@vger.kernel.org > --- > Documentation/devicetree/bindings/display/panel/display-timing.txt | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/Documentation/devicetree/bindings/display/panel/display-timing.txt b/Documentation/devicetree/bindings/display/panel/display-timing.txt > index e1d4a0b59612..1436292e7a56 100644 > --- a/Documentation/devicetree/bindings/display/panel/display-timing.txt > +++ b/Documentation/devicetree/bindings/display/panel/display-timing.txt > @@ -32,6 +32,12 @@ optional properties: > - active low = drive pixel data on falling edge/ > sample data on rising edge > - ignored = ignored > + - syncclk-active: with > + - active high = drive sync on rising edge/ rising edge of what? pixel clk? > + sample sync on falling edge > + - active low = drive sync on falling edge/ > + sample sync on rising edge > + - omitted = same configuration as pixelclk-active > - interlaced (bool): boolean to enable interlaced mode > - doublescan (bool): boolean to enable doublescan mode > - doubleclk (bool): boolean to enable doubleclock mode > -- > 2.9.3 >