From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hans de Goede Subject: [PATCH 4/4] drm/i915/dsi: Read back pclk set by GOP and use that as pclk (v3) Date: Sat, 1 Dec 2018 12:30:32 +0100 Message-ID: <20181201113032.22996-4-hdegoede@redhat.com> References: <20181201113032.22996-1-hdegoede@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20181201113032.22996-1-hdegoede@redhat.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= Cc: Hans de Goede , intel-gfx , dri-devel@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org VGhlIEdPUCBzb21ldGltZXMgaW5pdGlhbGl6ZXMgdGhlIHBjbGsgYXQgYSAoc2xpZ2h0bHkpIGRp ZmZlcmVudCBmcmVxdWVuY3kKdGhlbiB0aGUgcGNsayB3aGljaCB3ZSd2ZSBjYWxjdWxhdGVkLgoK VGhpcyBjb21taXQgbWFrZXMgdGhlIERTSSBjb2RlIHJlYWQtYmFjayB0aGUgcGNsayBzZXQgYnkg dGhlIEdPUCBhbmQKaWYgdGhhdCBpcyB3aXRoaW4gYSByZWFzb25hYmxlIG1hcmdpbiBvZiB0aGUg Y2FsY3VsYXRlZCBwY2xrLCB1c2VzCnRoYXQgaW5zdGVhZC4KClRoaXMgZml4ZXMgdGhlIGZpcnN0 IG1vZGVzZXQgYmVpbmcgYSBmdWxsIG1vZGVzZXQgaW5zdGVhZCBvZiBhCmZhc3QgbW9kZXNldCBv biBzeXN0ZW1zIHdoZXJlIHRoZSBHT1AgcGNsayBpcyBkaWZmZXJlbnQuCgpDaGFuZ2VzIGluIHYy OgotVXNlIGludGVsX2VuY29kZXJfY3VycmVudF9tb2RlKCkgdG8gZ2V0IHRoZSBwY2xrIHNldHVw IGJ5IHRoZSBHT1AKCkNoYW5nZXMgaW4gdjM6Ci1CYWNrIHRvIHRoZSByZWFkYmFjayBhcHByb2Fj aCwgc2tpcHBpbmcgdGhlIGRzaV9wbGwuY3RybCAvIC5kZXYgY2hlY2tzCiBpbiBpbnRlbF9waXBl X2NvbmZpZ19jb21wYXJlKCkgd2hlbiBhZGp1c3QgaXMgc2V0IGxlYWRzIHRvOgogW2RybTpwaXBl X2NvbmZpZ19lcnIgW2k5MTVdXSAqRVJST1IqIG1pc21hdGNoIGluIGRzaV9wbGwuY3RybCAoLi4u KQogW2RybTpwaXBlX2NvbmZpZ19lcnIgW2k5MTVdXSAqRVJST1IqIG1pc21hdGNoIGluIGRzaV9w bGwuZGl2ICguLi4pCi1EbyB0aGUgcmVhZGJhY2sgYW5kIHBjbGsgb3ZlcnJpZGluZyBmcm9tIHZs dl9kc2lfaW5pdCgpLCByYXRoZXIgdGhlbiBmcm9tCiBpbnRlbF9kc2lfdmJ0X2luaXQoKSBhcyB0 aGUgdmJ0IGNvZGUgc2hvdWxkIG5vdCBiZSB0b3VjaGluZyB0aGUgaHcKClNpZ25lZC1vZmYtYnk6 IEhhbnMgZGUgR29lZGUgPGhkZWdvZWRlQHJlZGhhdC5jb20+Ci0tLQogZHJpdmVycy9ncHUvZHJt L2k5MTUvdmx2X2RzaS5jIHwgMjAgKysrKysrKysrKysrKysrKy0tLS0KIDEgZmlsZSBjaGFuZ2Vk LCAxNiBpbnNlcnRpb25zKCspLCA0IGRlbGV0aW9ucygtKQoKZGlmZiAtLWdpdCBhL2RyaXZlcnMv Z3B1L2RybS9pOTE1L3Zsdl9kc2kuYyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L3Zsdl9kc2kuYwpp bmRleCAyYWUxMTI0ZGJmNzcuLmJlM2FmNWY2YzdhMCAxMDA2NDQKLS0tIGEvZHJpdmVycy9ncHUv ZHJtL2k5MTUvdmx2X2RzaS5jCisrKyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L3Zsdl9kc2kuYwpA QCAtMTcxNyw3ICsxNzE3LDcgQEAgdm9pZCB2bHZfZHNpX2luaXQoc3RydWN0IGRybV9pOTE1X3By aXZhdGUgKmRldl9wcml2KQogCXN0cnVjdCBkcm1fZW5jb2RlciAqZW5jb2RlcjsKIAlzdHJ1Y3Qg aW50ZWxfY29ubmVjdG9yICppbnRlbF9jb25uZWN0b3I7CiAJc3RydWN0IGRybV9jb25uZWN0b3Ig KmNvbm5lY3RvcjsKLQlzdHJ1Y3QgZHJtX2Rpc3BsYXlfbW9kZSAqc2NhbiwgKmZpeGVkX21vZGUg PSBOVUxMOworCXN0cnVjdCBkcm1fZGlzcGxheV9tb2RlICpzY2FuLCAqY3VycmVudF9tb2RlLCAq Zml4ZWRfbW9kZSA9IE5VTEw7CiAJZW51bSBwb3J0IHBvcnQ7CiAKIAlEUk1fREVCVUdfS01TKCJc biIpOwpAQCAtMTc2MSw2ICsxNzYxLDkgQEAgdm9pZCB2bHZfZHNpX2luaXQoc3RydWN0IGRybV9p OTE1X3ByaXZhdGUgKmRldl9wcml2KQogCWludGVsX2Nvbm5lY3Rvci0+Z2V0X2h3X3N0YXRlID0g aW50ZWxfY29ubmVjdG9yX2dldF9od19zdGF0ZTsKIAogCWludGVsX2VuY29kZXItPnBvcnQgPSBw b3J0OworCWludGVsX2VuY29kZXItPnR5cGUgPSBJTlRFTF9PVVRQVVRfRFNJOworCWludGVsX2Vu Y29kZXItPnBvd2VyX2RvbWFpbiA9IFBPV0VSX0RPTUFJTl9QT1JUX0RTSTsKKwlpbnRlbF9lbmNv ZGVyLT5jbG9uZWFibGUgPSAwOwogCiAJLyoKIAkgKiBPbiBCWVQvQ0hWLCBwaXBlIEEgbWFwcyB0 byBNSVBJIERTSSBwb3J0IEEsIHBpcGUgQiBtYXBzIHRvIE1JUEkgRFNJCkBAIC0xNzk3LDYgKzE4 MDAsMTggQEAgdm9pZCB2bHZfZHNpX2luaXQoc3RydWN0IGRybV9pOTE1X3ByaXZhdGUgKmRldl9w cml2KQogCQlnb3RvIGVycjsKIAl9CiAKKwkvKiBVc2UgY2xvY2sgcmVhZC1iYWNrIGZyb20gY3Vy cmVudCBody1zdGF0ZSBmb3IgZmFzdGJvb3QgKi8KKwljdXJyZW50X21vZGUgPSBpbnRlbF9lbmNv ZGVyX2N1cnJlbnRfbW9kZShpbnRlbF9lbmNvZGVyKTsKKwlpZiAoY3VycmVudF9tb2RlKSB7CisJ CURSTV9ERUJVR19LTVMoIkNhbGN1bGF0ZWQgcGNsayAlZCBHT1AgJWRcbiIsCisJCQkgICAgICBp bnRlbF9kc2ktPnBjbGssIGN1cnJlbnRfbW9kZS0+Y2xvY2spOworCQlpZiAoaW50ZWxfZnV6enlf Y2xvY2tfY2hlY2soaW50ZWxfZHNpLT5wY2xrLAorCQkJCQkgICAgY3VycmVudF9tb2RlLT5jbG9j aykpCisJCQlpbnRlbF9kc2ktPnBjbGsgPSBjdXJyZW50X21vZGUtPmNsb2NrOworCisJCWtmcmVl KGN1cnJlbnRfbW9kZSk7CisJfQorCiAJdmx2X2RwaHlfcGFyYW1faW5pdChpbnRlbF9kc2kpOwog CiAJLyoKQEAgLTE4MTQsOSArMTgyOSw2IEBAIHZvaWQgdmx2X2RzaV9pbml0KHN0cnVjdCBkcm1f aTkxNV9wcml2YXRlICpkZXZfcHJpdikKIAkJfQogCX0KIAotCWludGVsX2VuY29kZXItPnR5cGUg PSBJTlRFTF9PVVRQVVRfRFNJOwotCWludGVsX2VuY29kZXItPnBvd2VyX2RvbWFpbiA9IFBPV0VS X0RPTUFJTl9QT1JUX0RTSTsKLQlpbnRlbF9lbmNvZGVyLT5jbG9uZWFibGUgPSAwOwogCWRybV9j b25uZWN0b3JfaW5pdChkZXYsIGNvbm5lY3RvciwgJmludGVsX2RzaV9jb25uZWN0b3JfZnVuY3Ms CiAJCQkgICBEUk1fTU9ERV9DT05ORUNUT1JfRFNJKTsKIAotLSAKMi4xOS4xCgpfX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpkcmktZGV2ZWwgbWFpbGluZyBs aXN0CmRyaS1kZXZlbEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVz a3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9kcmktZGV2ZWwK