From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= Subject: Re: [RFC PATCH 4/4] drm/i915: Enable voltage swing before enabling DDI_BUF_CTL. Date: Fri, 25 Aug 2017 16:02:20 +0300 Message-ID: <20170825130220.GR4914@intel.com> References: <20170816201951.14515-1-rodrigo.vivi@intel.com> <20170816201951.14515-4-rodrigo.vivi@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by gabe.freedesktop.org (Postfix) with ESMTPS id 7BB006E189 for ; Fri, 25 Aug 2017 13:02:25 +0000 (UTC) Content-Disposition: inline In-Reply-To: <20170816201951.14515-4-rodrigo.vivi@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Rodrigo Vivi Cc: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org T24gV2VkLCBBdWcgMTYsIDIwMTcgYXQgMDE6MTk6NTFQTSAtMDcwMCwgUm9kcmlnbyBWaXZpIHdy b3RlOgo+IFNlcXVlbmNlcyBmb3IgRGlzcGxheVBvcnQgYXNrcyB1cyB0bwo+ICIgQ29uZmlndXJl IHZvbHRhZ2Ugc3dpbmcgYW5kIHJlbGF0ZWQgSU8gc2V0dGluZ3MuCj4gUmVmZXIgdG8gRERJIEJ1 ZmZlciBzZWN0aW9uLiIKPiAKPiBiZWZvcmUgIkNvbmZpZ3VyZSBhbmQgZW5hYmxlIERESV9CVUZf Q1RMIgo+IAo+IE9uIEJYVCBhbmQgQ05MIHRoaXMgbWVhbnMgdG8gZXhlY3V0ZSB0aGUgZGRpIHZz d2luZyBzZXF1ZW5jZXMuCj4gCj4gQXQgdGhpcyBwb2ludCB0aGVzZSBzZXF1ZW5jZXMgY2FsbHMg YXJlIGdldHRpbmcgZHVwbGljYXRlZCBmb3IgRFAKPiBiZWNhdXNlIHRoZXkgYXJlIGFsbCBjYWxs ZWQgZnJvbSBEUCBsaW5rIHRyYWlubmluZyBzZXF1ZW5jZXMuCj4gCj4gSG93ZXZlciB0aGlzIHBh dGNoIGlzIG5vdCB5ZXQgcmVtb3ZpbmcgaXQgYmVmb3JlIGEgZnV0aGVyIGRpc2N1c3Npb24KPiBz aW5jZSBzcGVjIGFsc28gYWxsb3dzIHRoYXQgZHVyaW5nIGxpbmsgdHJhaW5pbmcgd2l0aG91dCBk aXNhYmxpbmcKPiBhbnl0aGluZzoKPiAKPiAiCj4gTm90ZXMKPiBDaGFuZ2luZyB2b2x0YWdlIHN3 aW5nIGR1cmluZyBsaW5rIHRyYWluaW5nOgo+IENoYW5nZSB0aGUgc3dpbmcgc2V0dGluZyBmb2xs b3dpbmcgdGhlIERESSBCdWZmZXIgc2VjdGlvbi4KPiBUaGUgcG9ydCBkb2VzIG5vdCBuZWVkIHRv IGJlIGRpc2FibGVkLgo+ICIKPiAKPiBDYzogVmlsbGUgU3lyasOkbMOkIDx2aWxsZS5zeXJqYWxh QGxpbnV4LmludGVsLmNvbT4KPiBTaWduZWQtb2ZmLWJ5OiBSb2RyaWdvIFZpdmkgPHJvZHJpZ28u dml2aUBpbnRlbC5jb20+Cj4gLS0tCj4gIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2RkaS5j IHwgNyArKysrKystCj4gIDEgZmlsZSBjaGFuZ2VkLCA2IGluc2VydGlvbnMoKyksIDEgZGVsZXRp b24oLSkKPiAKPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZGRpLmMg Yi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9kZGkuYwo+IGluZGV4IGE2MDU2YmI0ZjgwMS4u OGVhMDM2OGUxNWIxIDEwMDY0NAo+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2Rk aS5jCj4gKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZGRpLmMKPiBAQCAtMjEzMyw2 ICsyMTMzLDcgQEAgc3RhdGljIHZvaWQgaW50ZWxfZGRpX3ByZV9lbmFibGVfZHAoc3RydWN0IGlu dGVsX2VuY29kZXIgKmVuY29kZXIsCj4gIAlzdHJ1Y3QgZHJtX2k5MTVfcHJpdmF0ZSAqZGV2X3By aXYgPSB0b19pOTE1KGVuY29kZXItPmJhc2UuZGV2KTsKPiAgCWVudW0gcG9ydCBwb3J0ID0gaW50 ZWxfZGRpX2dldF9lbmNvZGVyX3BvcnQoZW5jb2Rlcik7Cj4gIAlzdHJ1Y3QgaW50ZWxfZGlnaXRh bF9wb3J0ICpkaWdfcG9ydCA9IGVuY190b19kaWdfcG9ydCgmZW5jb2Rlci0+YmFzZSk7Cj4gKwl1 aW50MzJfdCBsZXZlbCA9IGludGVsX2RkaV9kcF9sZXZlbChpbnRlbF9kcCk7Cj4gIAo+ICAJV0FS Tl9PTihsaW5rX21zdCAmJiAocG9ydCA9PSBQT1JUX0EgfHwgcG9ydCA9PSBQT1JUX0UpKTsKPiAg Cj4gQEAgLTIxNDUsNyArMjE0NiwxMSBAQCBzdGF0aWMgdm9pZCBpbnRlbF9kZGlfcHJlX2VuYWJs ZV9kcChzdHJ1Y3QgaW50ZWxfZW5jb2RlciAqZW5jb2RlciwKPiAgCj4gIAlpbnRlbF9kaXNwbGF5 X3Bvd2VyX2dldChkZXZfcHJpdiwgZGlnX3BvcnQtPmRkaV9pb19wb3dlcl9kb21haW4pOwo+ICAK PiAtCWlmICghSVNfR0VOOV9MUChkZXZfcHJpdikgJiYgIUlTX0NBTk5PTkxBS0UoZGV2X3ByaXYp KQo+ICsJaWYgKElTX0NBTk5PTkxBS0UoZGV2X3ByaXYpKQo+ICsJCWNubF9kZGlfdnN3aW5nX3Nl cXVlbmNlKGVuY29kZXIsIGxldmVsKTsKPiArCWVsc2UgaWYgKElTX0dFTjlfTFAoZGV2X3ByaXYp KQo+ICsJCWJ4dF9kZGlfdnN3aW5nX3NlcXVlbmNlKGRldl9wcml2LCBsZXZlbCwgcG9ydCwgZW5j b2Rlci0+dHlwZSk7CgpIbW0uIFllYWgsIEkgZ3Vlc3MgaXQgd291bGQgbWFrZSBzZW5zZSB0byBz ZXQgdGhlc2UgdXAgYWxyZWFkeSBiZWZvcmUgd2UKZW5hYmxlIERESV9CVUZfQ1RMLCB3aGljaCBJ IHRoaW5rIHdvdWxkIGhhcHBlbmQgZnJvbSB0aGUKLnByZXBhcmVfbGlua19yZXRyYWluKCkgaG9v ayBvbiBEREksIGFuZCB0aGF0IGRvZXMgZ2V0IGNhbGxlZCBiZWZvcmUgdGhlCnNpZ25hbCBsZXZl bHMgaGF2ZSBiZWVuIHNldCB1cC4KClNvIEknbSBmaW5lIHdpdGggdGhpcyBjaGFuZ2UuIEltcmUs IGFueSB0aG91Z2h0cz8KCj4gKwllbHNlCj4gIAkJaW50ZWxfcHJlcGFyZV9kcF9kZGlfYnVmZmVy cyhlbmNvZGVyKTsKPiAgCj4gIAlpbnRlbF9kZGlfaW5pdF9kcF9idWZfcmVnKGVuY29kZXIpOwo+ IC0tIAo+IDIuMTMuMgoKLS0gClZpbGxlIFN5cmrDpGzDpApJbnRlbCBPVEMKX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KSW50ZWwtZ2Z4IG1haWxpbmcgbGlz dApJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0 b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4Cg==