From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sivakumar Thulasimani Subject: Re: [PATCH] drm/i915: Parsing LFP brightness control from VBT Date: Mon, 27 Jul 2015 10:08:02 +0530 Message-ID: <55B5B5AA.4020200@intel.com> References: <1436180709-18905-1-git-send-email-vandana.kannan@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by gabe.freedesktop.org (Postfix) with ESMTP id BCA316E082 for ; Sun, 26 Jul 2015 21:38:04 -0700 (PDT) In-Reply-To: <1436180709-18905-1-git-send-email-vandana.kannan@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Vandana Kannan , intel-gfx@lists.freedesktop.org Cc: Deepak M , Jani Nikula List-Id: intel-gfx@lists.freedesktop.org CgpPbiA3LzYvMjAxNSA0OjM1IFBNLCBWYW5kYW5hIEthbm5hbiB3cm90ZToKPiBGcm9tOiBEZWVw YWsgTSA8bS5kZWVwYWtAaW50ZWwuY29tPgo+Cj4gTEZQIGJyaWdobmVzcyBjb250cm9sIGZyb20g dGhlIFZCVCBibG9jayA0MyBpbmRpY2F0ZXMgd2hpY2gKPiBjb250cm9sbGVyIGlzIHVzZWQgZm9y IGJyaWdodG5lc3MuCj4gTEZQMSBicmlnaHRuZXNzIGNvbnRyb2wgbWV0aG9kOgo+IEJpdCA3LTQg PSBUaGlzIGZpZWxkIGNvbnRyb2xsZXIgbnVtYmVyIG9mIHRoZSBicmlnaHRuZXMgY29udHJvbGxl ci4KPiAwID0gQ29udHJvbGxlciAwCj4gMSA9IENvbnRyb2xsZXIgMQo+IDIgPSBDb250cm9sbGVy IDIKPiAzID0gQ29udHJvbGxlciAzCj4gT3RoZXJzID0gUmVzZXJ2ZWQKPgo+IEJpdHMgMy0wIGFy ZSBmb3IgQ29udHJvbCBwaW4KPiAwID0gUE1JQyBwaW4gaXMgdXNlZCBmb3IgYnJpZ2h0bmVzcyBj b250cm9sCj4gMSA9IExQU1MgUFdNIGlzIHVzZWQgZm9yIGJyaWdodG5lc3MgY29udHJvbAo+IDIg PSBEaXNwbGF5IERESSBpcyB1c2VkIGZvciBicmlnaHRuZXNzIGNvbnRyb2wKPiAzID0gQ0FCQyBt ZXRob2QgdG8gY29udHJvbCBicmlnaHRuZXNzCj4gT3RoZXJzID0gUmVzZXJ2ZWQKPgo+IEhpc3Rv cnk6Cj4gVGhpcyBwYXRjaCB3YXMgc3VibWl0dGVkIGVhcmxpZXIgaW5jbHVkaW5nIGEgY2hlY2sg Zm9yIGNvbnRyb2wgcGluLgo+IGh0dHA6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvYXJjaGl2ZXMv aW50ZWwtZ2Z4LzIwMTQtRGVjZW1iZXIvMDU3NTMwLmh0bWwKPiBTaW5jZSBpdCBjYXVzZWQgdGhl IGlzc3VlLCBodHRwczovL2J1Z3MuZnJlZWRlc2t0b3Aub3JnL3Nob3dfYnVnLmNnaT9pZD04NzY3 MSwKPiBpdCB3YXMgcmV2ZXJ0ZWQgaW4KPiBodHRwOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL2Fy Y2hpdmVzL2ludGVsLWdmeC8yMDE1LUphbnVhcnkvMDU4MTEwLmh0bWwKPgo+IFRoZSBjdXJyZW50 IHBhdGNoIHJlYWRzIGNvbnRyb2xsZXIgYW5kIGNvbnRyb2wgcGluIGZyb20gVkJUICh2ZXJzaW9u ID49IDE5MSkKPgo+ICBGcm9tIFZCVCB2ZXJzaW9uID49IDE5NywgZGVmYXVsdCB2YWx1ZSBvZiBj b250cm9sIHBpbiBpcyBzZXQgdG8gRERJLCBzbyB0aGUKPiBjb3JyZXNwb25kaW5nIGNoZWNrIGR1 cmluZyBiYWNrbGlnaHQgc2V0dXAgd2lsbCBiZSBtYWRlIGluIGEgZnV0dXJlIHBhdGNoCj4KPiBT aWduZWQtb2ZmLWJ5OiBEZWVwYWsgTSA8bS5kZWVwYWtAaW50ZWwuY29tPgo+IFNpZ25lZC1vZmYt Ynk6IFZhbmRhbmEgS2FubmFuIDx2YW5kYW5hLmthbm5hbkBpbnRlbC5jb20+Cj4gQ2M6IEphbmkg TmlrdWxhIDxqYW5pLm5pa3VsYUBpbnRlbC5jb20+Cj4gLS0tCj4gICBkcml2ZXJzL2dwdS9kcm0v aTkxNS9pOTE1X2Rydi5oICAgfCAgMiArKwo+ICAgZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxf Ymlvcy5jIHwgIDkgKysrKysrKysrCj4gICBkcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9iaW9z LmggfCAxMSArKysrKysrKysrKwo+ICAgMyBmaWxlcyBjaGFuZ2VkLCAyMiBpbnNlcnRpb25zKCsp Cj4KPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9kcnYuaCBiL2RyaXZl cnMvZ3B1L2RybS9pOTE1L2k5MTVfZHJ2LmgKPiBpbmRleCA5NTBhOTgxLi5hODllOWE5IDEwMDY0 NAo+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfZHJ2LmgKPiArKysgYi9kcml2ZXJz L2dwdS9kcm0vaTkxNS9pOTE1X2Rydi5oCj4gQEAgLTE0NjEsNiArMTQ2MSw4IEBAIHN0cnVjdCBp bnRlbF92YnRfZGF0YSB7Cj4gICAJCWJvb2wgcHJlc2VudDsKPiAgIAkJYm9vbCBhY3RpdmVfbG93 X3B3bTsKPiAgIAkJdTggbWluX2JyaWdodG5lc3M7CS8qIG1pbl9icmlnaHRuZXNzLzI1NSBvZiBt YXggKi8KPiArCQl1OCBjb250cm9sbGVyOwkJLyogYnJpZ2h0bmVzcyBjb250cm9sbGVyIG51bWJl ciAqLwo+ICsJCXU4IGNvbnRyb2xfcGluOyAgICAgICAgIC8qIGJyaWdodG5lc3MgY29udHJvbCBw aW4gKi8KPiAgIAl9IGJhY2tsaWdodDsKPiAgIAo+ICAgCS8qIE1JUEkgRFNJICovCj4gZGlmZiAt LWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2Jpb3MuYyBiL2RyaXZlcnMvZ3B1L2Ry bS9pOTE1L2ludGVsX2Jpb3MuYwo+IGluZGV4IDJmZjllYjAuLjMyYzFlZjIgMTAwNjQ0Cj4gLS0t IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfYmlvcy5jCj4gKysrIGIvZHJpdmVycy9ncHUv ZHJtL2k5MTUvaW50ZWxfYmlvcy5jCj4gQEAgLTI1Niw2ICsyNTYsNyBAQCBwYXJzZV9sZnBfYmFj a2xpZ2h0KHN0cnVjdCBkcm1faTkxNV9wcml2YXRlICpkZXZfcHJpdiwKPiAgIHsKPiAgIAljb25z dCBzdHJ1Y3QgYmRiX2xmcF9iYWNrbGlnaHRfZGF0YSAqYmFja2xpZ2h0X2RhdGE7Cj4gICAJY29u c3Qgc3RydWN0IGJkYl9sZnBfYmFja2xpZ2h0X2RhdGFfZW50cnkgKmVudHJ5Owo+ICsJY29uc3Qg c3RydWN0IGJkYl9sZnBfYmFja2xpZ2h0X2NvbnRyb2xfZGF0YSAqYmxfY3RybF9kYXRhOwo+ICAg Cj4gICAJYmFja2xpZ2h0X2RhdGEgPSBmaW5kX3NlY3Rpb24oYmRiLCBCREJfTFZEU19CQUNLTElH SFQpOwo+ICAgCWlmICghYmFja2xpZ2h0X2RhdGEpCj4gQEAgLTI2OCw2ICsyNjksNyBAQCBwYXJz ZV9sZnBfYmFja2xpZ2h0KHN0cnVjdCBkcm1faTkxNV9wcml2YXRlICpkZXZfcHJpdiwKPiAgIAl9 Cj4gICAKPiAgIAllbnRyeSA9ICZiYWNrbGlnaHRfZGF0YS0+ZGF0YVtwYW5lbF90eXBlXTsKPiAr CWJsX2N0cmxfZGF0YSA9ICZiYWNrbGlnaHRfZGF0YS0+YmxjX2N0bFtwYW5lbF90eXBlXTsKPiAg IAo+ICAgCWRldl9wcml2LT52YnQuYmFja2xpZ2h0LnByZXNlbnQgPSBlbnRyeS0+dHlwZSA9PSBC REJfQkFDS0xJR0hUX1RZUEVfUFdNOwo+ICAgCWlmICghZGV2X3ByaXYtPnZidC5iYWNrbGlnaHQu cHJlc2VudCkgewo+IEBAIC0yNzksMTIgKzI4MSwxOSBAQCBwYXJzZV9sZnBfYmFja2xpZ2h0KHN0 cnVjdCBkcm1faTkxNV9wcml2YXRlICpkZXZfcHJpdiwKPiAgIAlkZXZfcHJpdi0+dmJ0LmJhY2ts aWdodC5wd21fZnJlcV9oeiA9IGVudHJ5LT5wd21fZnJlcV9oejsKPiAgIAlkZXZfcHJpdi0+dmJ0 LmJhY2tsaWdodC5hY3RpdmVfbG93X3B3bSA9IGVudHJ5LT5hY3RpdmVfbG93X3B3bTsKPiAgIAlk ZXZfcHJpdi0+dmJ0LmJhY2tsaWdodC5taW5fYnJpZ2h0bmVzcyA9IGVudHJ5LT5taW5fYnJpZ2h0 bmVzczsKPiArCWRldl9wcml2LT52YnQuYmFja2xpZ2h0LmNvbnRyb2xsZXIgPSBibF9jdHJsX2Rh dGEtPmNvbnRyb2xsZXI7Cj4gKwlkZXZfcHJpdi0+dmJ0LmJhY2tsaWdodC5jb250cm9sX3BpbiA9 IGJsX2N0cmxfZGF0YS0+cGluOwo+ICsKPiAgIAlEUk1fREVCVUdfS01TKCJWQlQgYmFja2xpZ2h0 IFBXTSBtb2R1bGF0aW9uIGZyZXF1ZW5jeSAldSBIeiwgIgo+ICAgCQkgICAgICAiYWN0aXZlICVz LCBtaW4gYnJpZ2h0bmVzcyAldSwgbGV2ZWwgJXVcbiIsCj4gICAJCSAgICAgIGRldl9wcml2LT52 YnQuYmFja2xpZ2h0LnB3bV9mcmVxX2h6LAo+ICAgCQkgICAgICBkZXZfcHJpdi0+dmJ0LmJhY2ts aWdodC5hY3RpdmVfbG93X3B3bSA/ICJsb3ciIDogImhpZ2giLAo+ICAgCQkgICAgICBkZXZfcHJp di0+dmJ0LmJhY2tsaWdodC5taW5fYnJpZ2h0bmVzcywKPiAgIAkJICAgICAgYmFja2xpZ2h0X2Rh dGEtPmxldmVsW3BhbmVsX3R5cGVdKTsKPiArCj4gKwlEUk1fREVCVUdfS01TKCJWQlQgQkwgY29u dHJvbGxlciAldSwgQkwgY29udHJvbCBwaW4gJXVcbiIsCj4gKwkJCWRldl9wcml2LT52YnQuYmFj a2xpZ2h0LmNvbnRyb2xsZXIsCj4gKwkJCWRldl9wcml2LT52YnQuYmFja2xpZ2h0LmNvbnRyb2xf cGluKTsKPiAgIH0KPiAgIAo+ICAgLyogVHJ5IHRvIGZpbmQgc2R2byBwYW5lbCBkYXRhICovCj4g ZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2Jpb3MuaCBiL2RyaXZlcnMv Z3B1L2RybS9pOTE1L2ludGVsX2Jpb3MuaAo+IGluZGV4IGFmMGI0NzYuLmU5N2MxYzAgMTAwNjQ0 Cj4gLS0tIGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfYmlvcy5oCj4gKysrIGIvZHJpdmVy cy9ncHUvZHJtL2k5MTUvaW50ZWxfYmlvcy5oCj4gQEAgLTQwMiwxMCArNDAyLDIxIEBAIHN0cnVj dCBiZGJfbGZwX2JhY2tsaWdodF9kYXRhX2VudHJ5IHsKPiAgIAl1OCBvYnNvbGV0ZTM7Cj4gICB9 IF9fcGFja2VkOwo+ICAgCj4gKyNkZWZpbmUgQkxDX0NPTlRST0xfUElOX1BNSUMgICAgICAgICAg IDAKPiArI2RlZmluZSBCTENfQ09OVFJPTF9QSU5fTFBTU19QV00gICAgICAgMQo+ICsjZGVmaW5l IEJMQ19DT05UUk9MX1BJTl9EREkgICAgICAgICAgICAyCj4gKyNkZWZpbmUgQkxDX0NPTlRST0xf UElOX0NBQkMgICAgICAgICAgIDMKPiArCj4gK3N0cnVjdCBiZGJfbGZwX2JhY2tsaWdodF9jb250 cm9sX2RhdGEgewo+ICsJdTggY29udHJvbGxlcjo0Owo+ICsJdTggcGluOjQ7CnRoZSBwaW4gc2hv dWxkIGJlIGZpcnN0IGhhbGYgb2YgdGhpcyBzdHJ1Y3QuCnBpbiAtIDA6Mwpjb250cm9sbGVyIC0g NDo3Cj4gK30gX19wYWNrZWQ7Cj4gKwo+ICAgc3RydWN0IGJkYl9sZnBfYmFja2xpZ2h0X2RhdGEg ewo+ICAgCXU4IGVudHJ5X3NpemU7Cj4gICAJc3RydWN0IGJkYl9sZnBfYmFja2xpZ2h0X2RhdGFf ZW50cnkgZGF0YVsxNl07Cj4gICAJdTggbGV2ZWxbMTZdOwo+ICsJc3RydWN0IGJkYl9sZnBfYmFj a2xpZ2h0X2NvbnRyb2xfZGF0YSBibGNfY3RsWzE2XTsKPiAgIH0gX19wYWNrZWQ7Cj4gICAKPiAg IHN0cnVjdCBhaW1kYl9oZWFkZXIgewoKLS0gCnJlZ2FyZHMsClNpdmFrdW1hcgoKX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KSW50ZWwtZ2Z4IG1haWxpbmcg bGlzdApJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHA6Ly9saXN0cy5mcmVlZGVz a3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngK