From mboxrd@z Thu Jan 1 00:00:00 1970 From: Imre Deak Subject: [PATCH 2/2] drm/i915/bxt: Sanitize CDCLK to fix breakage during S4 resume Date: Tue, 24 May 2016 12:27:51 +0300 Message-ID: <1464082071-4562-2-git-send-email-imre.deak@intel.com> References: <1464082071-4562-1-git-send-email-imre.deak@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by gabe.freedesktop.org (Postfix) with ESMTP id B465D6E6CE for ; Tue, 24 May 2016 09:27:53 +0000 (UTC) In-Reply-To: <1464082071-4562-1-git-send-email-imre.deak@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org SSBub3RpY2VkIHRoYXQgZHVyaW5nIFM0IHJlc3VtZSBCSU9TIGluY29ycmVjdGx5IHNldHMgYml0 cyAxOCwgMTkgd2hpY2gKYXJlIHJlc2VydmVkL01CWiBhbmQgc2V0cyB0aGUgZGVjaW1hbCBmcmVx dWVuY3kgZmllbGRzIHRvIGFsbCAweGZmIGluCnRoZSBDRENMSyByZWdpc3Rlci4gVGhlIHJlc3Vs dCBpcyBhIGhhcmQgbG9ja3VwIGFzIGRpc3BsYXkgcmVnaXN0ZXIKYWNjZXNzZXMgYXJlIGF0dGVt cHRlZCBsYXRlci4gV29yayBhcm91bmQgdGhpcyBieSBzYW5pdGl6aW5nIHRoZSBDRENMSwpQTEwv ZGl2aWRlcnMgdGhlIHNhbWUgd2F5IGl0J3MgZG9uZSBvbiBTS0wuCgpXaGlsZSB0aGlzIGlzIGNs ZWFybHkgYSBCSU9TIGJ1ZyB3aGljaCBzaG91bGQgYmUgZml4ZWQgc2VwYXJhdGVseSwgaXQKZG9l c24ndCBodXJ0IHRvIGNoZWNrL3Nhbml0aXplIHRoaXMgcmVnYXJkbGVzcy4KClNpZ25lZC1vZmYt Ynk6IEltcmUgRGVhayA8aW1yZS5kZWFrQGludGVsLmNvbT4KLS0tCiBkcml2ZXJzL2dwdS9kcm0v aTkxNS9pbnRlbF9kaXNwbGF5LmMgfCA1MSArKysrKysrKysrKysrKysrKysrKysrKysrKysrKysr KysrLS0KIDEgZmlsZSBjaGFuZ2VkLCA0OSBpbnNlcnRpb25zKCspLCAyIGRlbGV0aW9ucygtKQoK ZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2Rpc3BsYXkuYyBiL2RyaXZl cnMvZ3B1L2RybS9pOTE1L2ludGVsX2Rpc3BsYXkuYwppbmRleCBiOGU1OTk1Li40NzlkMmU0IDEw MDY0NAotLS0gYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9kaXNwbGF5LmMKKysrIGIvZHJp dmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZGlzcGxheS5jCkBAIC01NDEyLDExICs1NDEyLDU4IEBA IHN0YXRpYyB2b2lkIGJyb3h0b25fc2V0X2NkY2xrKHN0cnVjdCBkcm1faTkxNV9wcml2YXRlICpk ZXZfcHJpdiwgaW50IGNkY2xrKQogCWludGVsX3VwZGF0ZV9jZGNsayhkZXZfcHJpdi0+ZGV2KTsK IH0KIAorc3RhdGljIHZvaWQgYnh0X3Nhbml0aXplX2NkY2xrKHN0cnVjdCBkcm1faTkxNV9wcml2 YXRlICpkZXZfcHJpdikKK3sKKwl1MzIgY2RjdGwsIGV4cGVjdGVkOworCisJaW50ZWxfdXBkYXRl X2NkY2xrKGRldl9wcml2LT5kZXYpOworCisJaWYgKCFkZXZfcHJpdi0+Y2RjbGtfcGxsLnZjbyB8 fAorCSAgICBkZXZfcHJpdi0+Y2RjbGtfZnJlcSA9PSBkZXZfcHJpdi0+Y2RjbGtfcGxsLnJlZikK KwkJZ290byBzYW5pdGl6ZTsKKworCS8qIERQTEwgb2theTsgdmVyaWZ5IHRoZSBjZGNsb2NrCisJ ICoKKwkgKiBTb21lIEJJT1MgdmVyc2lvbnMgbGVhdmUgYW4gaW5jb3JyZWN0IGRlY2ltYWwgZnJl cXVlbmN5IHZhbHVlIGFuZAorCSAqIHNldCByZXNlcnZlZCBNQlogYml0cyBpbiBDRENMS19DVEwg YXQgbGVhc3QgZHVyaW5nIGV4aXRpbmcgZnJvbSBTNCwKKwkgKiBzbyBzYW5pdGl6ZSB0aGlzIHJl Z2lzdGVyLgorCSAqLworCWNkY3RsID0gSTkxNV9SRUFEKENEQ0xLX0NUTCk7CisJLyoKKwkgKiBM ZXQncyBpZ25vcmUgdGhlIHBpcGUgZmllbGQsIHNpbmNlIEJJT1MgY291bGQgaGF2ZSBjb25maWd1 cmVkIHRoZQorCSAqIGRpdmlkZXJzIGJvdGggc3luY2hpbmcgdG8gYW4gYWN0aXZlIHBpcGUsIG9y IGFzeW5jaHJvbm91c2x5CisJICogKFBJUEVfTk9ORSkuCisJICovCisJY2RjdGwgJj0gfkJYVF9D RENMS19DRDJYX1BJUEVfTk9ORTsKKworCWV4cGVjdGVkID0gKGNkY3RsICYgQlhUX0NEQ0xLX0NE MlhfRElWX1NFTF9NQVNLKSB8CisJCSAgIHNrbF9jZGNsa19kZWNpbWFsKGRldl9wcml2LT5jZGNs a19mcmVxKTsKKwkvKgorCSAqIERpc2FibGUgU1NBIFByZWNoYXJnZSB3aGVuIENEIGNsb2NrIGZy ZXF1ZW5jeSA8IDUwMCBNSHosCisJICogZW5hYmxlIG90aGVyd2lzZS4KKwkgKi8KKwlpZiAoZGV2 X3ByaXYtPmNkY2xrX2ZyZXEgPj0gNTAwMDAwKQorCQlleHBlY3RlZCB8PSBCWFRfQ0RDTEtfU1NB X1BSRUNIQVJHRV9FTkFCTEU7CisKKwlpZiAoY2RjdGwgPT0gZXhwZWN0ZWQpCisJCS8qIEFsbCB3 ZWxsOyBub3RoaW5nIHRvIHNhbml0aXplICovCisJCXJldHVybjsKKworc2FuaXRpemU6CisJRFJN X0RFQlVHX0tNUygiU2FuaXRpemluZyBjZGNsayBwcm9ncmFtbWVkIGJ5IHByZS1vc1xuIik7CisK KwkvKiBmb3JjZSBjZGNsayBwcm9ncmFtbWluZyAqLworCWRldl9wcml2LT5jZGNsa19mcmVxID0g MDsKKworCS8qIGZvcmNlIGZ1bGwgUExMIGRpc2FibGUgKyBlbmFibGUgKi8KKwlkZXZfcHJpdi0+ Y2RjbGtfcGxsLnZjbyA9IC0xOworfQorCiB2b2lkIGJyb3h0b25faW5pdF9jZGNsayhzdHJ1Y3Qg ZHJtX2k5MTVfcHJpdmF0ZSAqZGV2X3ByaXYpCiB7Ci0JaW50ZWxfdXBkYXRlX2NkY2xrKGRldl9w cml2LT5kZXYpOworCWJ4dF9zYW5pdGl6ZV9jZGNsayhkZXZfcHJpdik7CiAKLQlpZiAoZGV2X3By aXYtPmNkY2xrX3BsbC52Y28gIT0gMCkKKwlpZiAoZGV2X3ByaXYtPmNkY2xrX2ZyZXEgPiAwICYm IGRldl9wcml2LT5jZGNsa19wbGwudmNvID4gMCkKIAkJcmV0dXJuOwogCiAJLyoKLS0gCjIuNS4w CgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJbnRlbC1n ZnggbWFpbGluZyBsaXN0CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9s aXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngK