From mboxrd@z Thu Jan 1 00:00:00 1970 From: Boris Brezillon Subject: Re: [PATCH 1/2] drm/atmel-hlcdc: prefer a higher rate clock as pixel-clock base Date: Fri, 24 Aug 2018 10:59:39 +0200 Message-ID: <20180824105939.24fe8013@bbrezillon> References: <20180824085501.9740-1-peda@axentia.se> <20180824085501.9740-2-peda@axentia.se> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail.bootlin.com (mail.bootlin.com [62.4.15.54]) by gabe.freedesktop.org (Postfix) with ESMTP id BFAC96E650 for ; Fri, 24 Aug 2018 08:59:51 +0000 (UTC) In-Reply-To: <20180824085501.9740-2-peda@axentia.se> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Peter Rosin Cc: Alexandre Belloni , David Airlie , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Nicolas Ferre , linux-arm-kernel@lists.infradead.org List-Id: dri-devel@lists.freedesktop.org T24gRnJpLCAyNCBBdWcgMjAxOCAxMDo1NTowMCArMDIwMApQZXRlciBSb3NpbiA8cGVkYUBheGVu dGlhLnNlPiB3cm90ZToKCj4gSWYgdGhlIGRpdmlkZXIgdXNlZCB0byBnZXQgdGhlIHBpeGVsLWNs b2NrIGlzIHNtYWxsLCB0aGUgZ3JhbnVsYXJpdHkKPiBvZiB0aGUgZnJlcXVlbmNpZXMgcG9zc2li bGUgZm9yIHRoZSBwaXhlbC1jbG9jayBpcyBxdWl0ZSBjb2Fyc2UuIEUuZy4KPiByZXF1ZXN0aW5n IGEgcGl4ZWwtY2xvY2sgb2YgNjVNSHogd2l0aCBhIHN5c19jbGsgb2YgMTMyTUh6IHJlc3VsdHMK PiBpbiB0aGUgZGl2aWRlciBiZWluZyBzZXQgdG8gMyBlbmRpbmcgdXAgd2l0aCA0NE1Iei4KPiAK PiBCeSBwcmVmZXJyaW5nIHRoZSBkb3VibGVkIHN5c19jbGsgYXMgYmFzZSwgdGhlIGRpdmlkZXIg aW5zdGVhZCBlbmRzCj4gdXAgYXMgNSB5aWVsZGluZyBhIHBpeGVsLWNsb2NrIG9mIDUyLjhNaHos IHdoaWNoIGlzIGEgZGVmaW5pdGUKPiBpbXByb3ZlbWVudC4KPiAKPiBXaGlsZSBhdCBpdCwgY2xh bXAgdGhlIGRpdmlkZXIgc28gdGhhdCBpdCBkb2VzIG5vdCBvdmVyZmxvdyBpbiBjYXNlCj4gaXQg Z2V0cyBiaWcuCj4gCj4gU2lnbmVkLW9mZi1ieTogUGV0ZXIgUm9zaW4gPHBlZGFAYXhlbnRpYS5z ZT4KPiAtLS0KPiAgZHJpdmVycy9ncHUvZHJtL2F0bWVsLWhsY2RjL2F0bWVsX2hsY2RjX2NydGMu YyB8IDE2ICsrKysrKysrKystLS0tLS0KPiAgMSBmaWxlIGNoYW5nZWQsIDEwIGluc2VydGlvbnMo KyksIDYgZGVsZXRpb25zKC0pCj4gCj4gZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9hdG1l bC1obGNkYy9hdG1lbF9obGNkY19jcnRjLmMgYi9kcml2ZXJzL2dwdS9kcm0vYXRtZWwtaGxjZGMv YXRtZWxfaGxjZGNfY3J0Yy5jCj4gaW5kZXggYzM4YTQ3OWFkYTk4Li43MWM5Y2Q5MGQyYWUgMTAw NjQ0Cj4gLS0tIGEvZHJpdmVycy9ncHUvZHJtL2F0bWVsLWhsY2RjL2F0bWVsX2hsY2RjX2NydGMu Ywo+ICsrKyBiL2RyaXZlcnMvZ3B1L2RybS9hdG1lbC1obGNkYy9hdG1lbF9obGNkY19jcnRjLmMK PiBAQCAtMTAxLDE4ICsxMDEsMjIgQEAgc3RhdGljIHZvaWQgYXRtZWxfaGxjZGNfY3J0Y19tb2Rl X3NldF9ub2ZiKHN0cnVjdCBkcm1fY3J0YyAqYykKPiAgCQkgICAgIChhZGotPmNydGNfaGRpc3Bs YXkgLSAxKSB8Cj4gIAkJICAgICAoKGFkai0+Y3J0Y192ZGlzcGxheSAtIDEpIDw8IDE2KSk7Cj4g IAo+IC0JY2ZnID0gMDsKPiArCWNmZyA9IEFUTUVMX0hMQ0RDX0NMS1NFTDsKPiAgCj4gLQlwcmF0 ZSA9IGNsa19nZXRfcmF0ZShjcnRjLT5kYy0+aGxjZGMtPnN5c19jbGspOwo+ICsJcHJhdGUgPSAy ICogY2xrX2dldF9yYXRlKGNydGMtPmRjLT5obGNkYy0+c3lzX2Nsayk7Cj4gIAltb2RlX3JhdGUg PSBhZGotPmNydGNfY2xvY2sgKiAxMDAwOwo+IC0JaWYgKChwcmF0ZSAvIDIpIDwgbW9kZV9yYXRl KSB7Cj4gLQkJcHJhdGUgKj0gMjsKPiAtCQljZmcgfD0gQVRNRUxfSExDRENfQ0xLU0VMOwo+IC0J fQo+ICAKPiAgCWRpdiA9IERJVl9ST1VORF9VUChwcmF0ZSwgbW9kZV9yYXRlKTsKPiAgCWlmIChk aXYgPCAyKQo+ICAJCWRpdiA9IDI7CgpJJ20gbml0cGlja2luZywgYnV0IGNhbiB5b3UgYWRkIGJy YWNlcyBhcm91bmQgdGhlIGlmKCkgYmxvY2s/CgpMb29rcyBnb29kIG90aGVyd2lzZS4KCj4gKwll bHNlIGlmIChBVE1FTF9ITENEQ19DTEtESVYoZGl2KSAmIH5BVE1FTF9ITENEQ19DTEtESVZfTUFT Sykgewo+ICsJCS8qIHRoZSBkaXZpZGVyIGVuZGVkIHVwIHRvbyBiaWcsIHRyeSBhIGxvd2VyIGJh c2UgcmF0ZSAqLwo+ICsJCWNmZyAmPSB+QVRNRUxfSExDRENfQ0xLU0VMOwo+ICsJCXByYXRlIC89 IDI7Cj4gKwkJZGl2ID0gRElWX1JPVU5EX1VQKHByYXRlLCBtb2RlX3JhdGUpOwo+ICsJCWlmIChB VE1FTF9ITENEQ19DTEtESVYoZGl2KSAmIH5BVE1FTF9ITENEQ19DTEtESVZfTUFTSykKPiArCQkJ ZGl2ID0gQVRNRUxfSExDRENfQ0xLRElWX01BU0s7Cj4gKwl9Cj4gIAo+ICAJY2ZnIHw9IEFUTUVM X0hMQ0RDX0NMS0RJVihkaXYpOwo+ICAKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fCmRyaS1kZXZlbCBtYWlsaW5nIGxpc3QKZHJpLWRldmVsQGxpc3RzLmZy ZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3Rp bmZvL2RyaS1kZXZlbAo=