From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ander Conselvan De Oliveira Subject: Re: [PATCH] drm/i915/glk: limit pixel clock to 99% of cdclk workaround Date: Tue, 04 Apr 2017 11:21:19 +0300 Message-ID: <1491294079.3274.3.camel@gmail.com> References: <1491293753-12325-1-git-send-email-jani.nikula@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail-pg0-x241.google.com (mail-pg0-x241.google.com [IPv6:2607:f8b0:400e:c05::241]) by gabe.freedesktop.org (Postfix) with ESMTPS id B237D891B7 for ; Tue, 4 Apr 2017 08:21:27 +0000 (UTC) Received: by mail-pg0-x241.google.com with SMTP id g2so35556579pge.2 for ; Tue, 04 Apr 2017 01:21:27 -0700 (PDT) In-Reply-To: <1491293753-12325-1-git-send-email-jani.nikula@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Jani Nikula , intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org T24gVHVlLCAyMDE3LTA0LTA0IGF0IDExOjE1ICswMzAwLCBKYW5pIE5pa3VsYSB3cm90ZToKPiBG cm9tOiBNYWRoYXYgQ2hhdWhhbiA8bWFkaGF2LmNoYXVoYW5AaW50ZWwuY29tPgo+IAo+IEFzIHBl ciBCU1BFQywgdmFsaWQgY2RjbGsgdmFsdWVzIGZvciBnbGsgYXJlIDc5LjIsIDE1OC40LCAzMTYu OCBNaHouCj4gUHJhY3RpY2FsbHkgd2UgY2FuIGFjaGl2ZSBvbmx5IDk5JSBvZiB0aGVzZSBjZGNs ayB2YWx1ZXMgKEhXIHRlYW0KPiBjaGVja2luZyBvbiB0aGlzKS4gU28gY2RjbGsgc2hvdWxkIGJl IGNhbGN1bGF0ZWQgZm9yIHRoZSBnaXZlbiBwaXhjbGsgYXMKPiBwZXIgdGhhdCBvdGhlcndpc2Ug aXQgbWF5IGxlYWQgdG8gc2NyZWVuIGNvcnJ1cHRpb24gZm9yIHNvbWUgc2NlbmFyaW9zLgo+IAo+ IHYyOiBSZWJhc2VkIHRvIG5ldyBDRExDSyBjb2RlIGZyYW1ld29yawo+IHYzOiBBZGRyZXNzZWQg cmV2aWV3IGNvbW1lbnRzIGZyb20gQW5kZXIvSmFuaQo+ICAgICAtIEFkZCBjb21tZW50IGluIGNv ZGUgYWJvdXQgOTklIHVzYWdlIG9mIENEQ0xLCj4gICAgIC0gQ2FsY3VsYXRlIG1heCBkb3QgY2xv Y2sgYXMgd2VsbCB3aXRoIDk5JSBsaW1pdAo+IHY0IGJ5IEphbmk6Cj4gICAgIC0gZHJvcCBzdXBl cmZsdW91cyB3aGl0ZXNwYWNlIGNoYW5nZQo+ICAgICAtIHJld3JpdGUgY29kZSBjb21tZW50cyB0 byBjbGFyaWZ5Cj4gCj4gQ2M6IEFuZGVyIENvbnNlbHZhbiBkZSBPbGl2ZWlyYSA8YW5kZXIuY29u c2VsdmFuLmRlLm9saXZlaXJhQGludGVsLmNvbT4KPiBDYzogVmlsbGUgU3lyasOkbMOkIDx2aWxs ZS5zeXJqYWxhQGxpbnV4LmludGVsLmNvbT4KPiBTaWduZWQtb2ZmLWJ5OiBNYWRoYXYgQ2hhdWhh biA8bWFkaGF2LmNoYXVoYW5AaW50ZWwuY29tPgo+IFNpZ25lZC1vZmYtYnk6IEphbmkgTmlrdWxh IDxqYW5pLm5pa3VsYUBpbnRlbC5jb20+Cj4gLS0tCj4gIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2lu dGVsX2NkY2xrLmMgfCAxNiArKysrKysrKysrKysrLS0tCj4gIDEgZmlsZSBjaGFuZ2VkLCAxMyBp bnNlcnRpb25zKCspLCAzIGRlbGV0aW9ucygtKQo+IAo+IGRpZmYgLS1naXQgYS9kcml2ZXJzL2dw dS9kcm0vaTkxNS9pbnRlbF9jZGNsay5jIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfY2Rj bGsuYwo+IGluZGV4IGRkM2FkNTJiN2RmZS4uNzYzMDEwZjhhZDg5IDEwMDY0NAo+IC0tLSBhL2Ry aXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2NkY2xrLmMKPiArKysgYi9kcml2ZXJzL2dwdS9kcm0v aTkxNS9pbnRlbF9jZGNsay5jCj4gQEAgLTEwNzEsOSArMTA3MSwxNSBAQCBzdGF0aWMgaW50IGJ4 dF9jYWxjX2NkY2xrKGludCBtYXhfcGl4Y2xrKQo+ICAKPiAgc3RhdGljIGludCBnbGtfY2FsY19j ZGNsayhpbnQgbWF4X3BpeGNsaykKPiAgewo+IC0JaWYgKG1heF9waXhjbGsgPiAyICogMTU4NDAw KQo+ICsJLyoKPiArCSAqIEZJWE1FOiBBdm9pZCB1c2luZyBhIHBpeGVsIGNsb2NrIHRoYXQgaXMg bW9yZSB0aGFuIDk5JSBvZiB0aGUgY2RjbGsKPiArCSAqIGFzIGEgdGVtcG9yYXJ5IHdvcmthcm91 bmQuIFVzZSBhIGhpZ2hlciBjZGNsayBpbnN0ZWFkLiAoTm90ZSB0aGF0CgpUZW1wb3Jhcnkgd29y a2Fyb3VuZCBmb3Igd2hhdD8gTmVpdGhlciB0aGUgY29tbWVudCBub3IgdGhlIGNvbW1pdCBtZXNz YWdlCmV4cGxpY2l0bHkgbGlzdHMgdGhlIHNjZW5hcmlvIHRoYXQgdHJpZ2dlcnMgdGhpcyBpc3N1 ZS4KCldpdGggdGhhdCBmaXhlZCwKClJldmlld2VkLWJ5OiBBbmRlciBDb25zZWx2YW4gZGUgT2xp dmVpcmEgPGNvbnNlbHZhbjJAZ21haWwuY29tPgoKPiArCSAqIGludGVsX2NvbXB1dGVfbWF4X2Rv dGNsaygpIGxpbWl0cyB0aGUgbWF4IHBpeGVsIGNsb2NrIHRvIDk5JSBvZiBtYXgKPiArCSAqIGNk Y2xrLikKPiArCSAqLwo+ICsJaWYgKG1heF9waXhjbGsgPiBESVZfUk9VTkRfVVAoMiAqIDE1ODQw MCAqIDk5LCAxMDApKQo+ICAJCXJldHVybiAzMTY4MDA7Cj4gLQllbHNlIGlmIChtYXhfcGl4Y2xr ID4gMiAqIDc5MjAwKQo+ICsJZWxzZSBpZiAobWF4X3BpeGNsayA+IERJVl9ST1VORF9VUCgyICog NzkyMDAgKiA5OSwgMTAwKSkKPiAgCQlyZXR1cm4gMTU4NDAwOwo+ICAJZWxzZQo+ICAJCXJldHVy biA3OTIwMDsKPiBAQCAtMTY2NCw3ICsxNjcwLDExIEBAIHN0YXRpYyBpbnQgaW50ZWxfY29tcHV0 ZV9tYXhfZG90Y2xrKHN0cnVjdCBkcm1faTkxNV9wcml2YXRlICpkZXZfcHJpdikKPiAgCWludCBt YXhfY2RjbGtfZnJlcSA9IGRldl9wcml2LT5tYXhfY2RjbGtfZnJlcTsKPiAgCj4gIAlpZiAoSVNf R0VNSU5JTEFLRShkZXZfcHJpdikpCj4gLQkJcmV0dXJuIDIgKiBtYXhfY2RjbGtfZnJlcTsKPiAr CQkvKgo+ICsJCSAqIEZJWE1FOiBMaW1pdGluZyB0byA5OSUgYXMgYSB0ZW1wb3Jhcnkgd29ya2Fy b3VuZC4gU2VlCj4gKwkJICogZ2xrX2NhbGNfY2RjbGsoKSBmb3IgZGV0YWlscy4KPiArCQkgKi8K PiArCQlyZXR1cm4gMiAqIG1heF9jZGNsa19mcmVxICogOTkgLyAxMDA7Cj4gIAllbHNlIGlmIChJ TlRFTF9JTkZPKGRldl9wcml2KS0+Z2VuID49IDkgfHwKPiAgCQkgSVNfSEFTV0VMTChkZXZfcHJp dikgfHwgSVNfQlJPQURXRUxMKGRldl9wcml2KSkKPiAgCQlyZXR1cm4gbWF4X2NkY2xrX2ZyZXE7 Cl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCkludGVsLWdm eCBtYWlsaW5nIGxpc3QKSW50ZWwtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xp c3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeAo=