From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephane Viau Subject: [PATCH 2/2] drm/msm/mdp5: Avoid flushing registers when CRTC is disabled Date: Fri, 20 Feb 2015 16:30:56 -0500 Message-ID: <1424467856-867-3-git-send-email-sviau@codeaurora.org> References: <1424467856-867-1-git-send-email-sviau@codeaurora.org> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from smtp.codeaurora.org (smtp.codeaurora.org [198.145.29.96]) by gabe.freedesktop.org (Postfix) with ESMTP id 13E6A6E709 for ; Fri, 20 Feb 2015 13:31:08 -0800 (PST) In-Reply-To: <1424467856-867-1-git-send-email-sviau@codeaurora.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org Cc: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org List-Id: dri-devel@lists.freedesktop.org V2hlbiBhIENSVEMgaXMgZGlzYWJsZWQsIG5vIENUTCBpcyBhbGxvY2F0ZWQgdG8gaXQgKENSVEMt PmN0bCA9PSBOVUxMKTsKaW4gdGhhdCBjYXNlIHdlIHNob3VsZCBub3QgdHJ5IHRvIEZMVVNIIHJl Z2lzdGVycyBhbmQgZG8gbm90aGluZyBpbnN0ZWFkLgoKVGhpcyBjYW4gaGFwcGVuIHdoZW4gd2Ug dHJ5IHRvIG1vdmUgYSBjdXJzb3IgYnV0IHRoZSBDUlRDJ3MgQ1RMCihDT05UUk9MKSBoYXMgbm90 IGJlZW4gYWxsb2NhdGVkIHlldCAoaW5hY3RpdmUgQ1JUQykuCkl0IGNhbiBhbHNvIGhhcHBlbnMg d2hlbiB3ZSAuYXRvbWljX2NoZWNrKCkvLmF0b21pY19mbHVzaCgpIG9uIGEKZGlzYWJsZWQgQ1JU Qy4KCkEgQ1RMIG5lZWRzIHRvIGJlIGtlcHQgYXMgbG9uZyBhcyB0aGUgQ1JUQyBpcyBhbGl2ZS4g UmVsZWFzaW5nIGl0CmFmdGVyIHRoZSBsYXN0IFZCbGFuayBpcyBzYWZlciB0aGFuIGluIC5hdG9t aWNfZmx1c2goKS4KClNpZ25lZC1vZmYtYnk6IFN0ZXBoYW5lIFZpYXUgPHN2aWF1QGNvZGVhdXJv cmEub3JnPgotLS0KIGRyaXZlcnMvZ3B1L2RybS9tc20vbWRwL21kcDUvbWRwNV9jcnRjLmMgfCAy NiArKysrKysrKysrKysrKysrKysrLS0tLS0tLQogMSBmaWxlIGNoYW5nZWQsIDE5IGluc2VydGlv bnMoKyksIDcgZGVsZXRpb25zKC0pCgpkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL21zbS9t ZHAvbWRwNS9tZHA1X2NydGMuYyBiL2RyaXZlcnMvZ3B1L2RybS9tc20vbWRwL21kcDUvbWRwNV9j cnRjLmMKaW5kZXggOTQ2YjcxYi4uMmFlYWU3MyAxMDA2NDQKLS0tIGEvZHJpdmVycy9ncHUvZHJt L21zbS9tZHAvbWRwNS9tZHA1X2NydGMuYworKysgYi9kcml2ZXJzL2dwdS9kcm0vbXNtL21kcC9t ZHA1L21kcDVfY3J0Yy5jCkBAIC0xMDMsOCArMTAzLDggQEAgc3RhdGljIHZvaWQgY3J0Y19mbHVz aF9hbGwoc3RydWN0IGRybV9jcnRjICpjcnRjKQogCXN0cnVjdCBkcm1fcGxhbmUgKnBsYW5lOwog CXVpbnQzMl90IGZsdXNoX21hc2sgPSAwOwogCi0JLyogd2UgY291bGQgaGF2ZSBhbHJlYWR5IHJl bGVhc2VkIENUTCBpbiB0aGUgZGlzYWJsZSBwYXRoOiAqLwotCWlmICghbWRwNV9jcnRjLT5jdGwp CisJLyogdGhpcyBzaG91bGQgbm90IGhhcHBlbjogKi8KKwlpZiAoV0FSTl9PTighbWRwNV9jcnRj LT5jdGwpKQogCQlyZXR1cm47CiAKIAlkcm1fYXRvbWljX2NydGNfZm9yX2VhY2hfcGxhbmUocGxh bmUsIGNydGMpIHsKQEAgLTE0Myw2ICsxNDMsMTEgQEAgc3RhdGljIHZvaWQgY29tcGxldGVfZmxp cChzdHJ1Y3QgZHJtX2NydGMgKmNydGMsIHN0cnVjdCBkcm1fZmlsZSAqZmlsZSkKIAlkcm1fYXRv bWljX2NydGNfZm9yX2VhY2hfcGxhbmUocGxhbmUsIGNydGMpIHsKIAkJbWRwNV9wbGFuZV9jb21w bGV0ZV9mbGlwKHBsYW5lKTsKIAl9CisKKwlpZiAobWRwNV9jcnRjLT5jdGwgJiYgIWNydGMtPnN0 YXRlLT5lbmFibGUpIHsKKwkJbWRwNV9jdGxfcmVsZWFzZShtZHA1X2NydGMtPmN0bCk7CisJCW1k cDVfY3J0Yy0+Y3RsID0gTlVMTDsKKwl9CiB9CiAKIHN0YXRpYyB2b2lkIHVucmVmX2N1cnNvcl93 b3JrZXIoc3RydWN0IGRybV9mbGlwX3dvcmsgKndvcmssIHZvaWQgKnZhbCkKQEAgLTM4NiwxNCAr MzkxLDE3IEBAIHN0YXRpYyB2b2lkIG1kcDVfY3J0Y19hdG9taWNfZmx1c2goc3RydWN0IGRybV9j cnRjICpjcnRjKQogCW1kcDVfY3J0Yy0+ZXZlbnQgPSBjcnRjLT5zdGF0ZS0+ZXZlbnQ7CiAJc3Bp bl91bmxvY2tfaXJxcmVzdG9yZSgmZGV2LT5ldmVudF9sb2NrLCBmbGFncyk7CiAKKwkvKgorCSAq IElmIG5vIENUTCBoYXMgYmVlbiBhbGxvY2F0ZWQgaW4gbWRwNV9jcnRjX2F0b21pY19jaGVjaygp LAorCSAqIGl0IG1lYW5zIHdlIGFyZSB0cnlpbmcgdG8gZmx1c2ggYSBDUlRDIHdob3NlIHN0YXRl IGlzIGRpc2FibGVkOgorCSAqIG5vdGhpbmcgZWxzZSBuZWVkcyB0byBiZSBkb25lLgorCSAqLwor CWlmICh1bmxpa2VseSghbWRwNV9jcnRjLT5jdGwpKQorCQlyZXR1cm47CisKIAlibGVuZF9zZXR1 cChjcnRjKTsKIAljcnRjX2ZsdXNoX2FsbChjcnRjKTsKIAlyZXF1ZXN0X3BlbmRpbmcoY3J0Yywg UEVORElOR19GTElQKTsKLQotCWlmIChtZHA1X2NydGMtPmN0bCAmJiAhY3J0Yy0+c3RhdGUtPmVu YWJsZSkgewotCQltZHA1X2N0bF9yZWxlYXNlKG1kcDVfY3J0Yy0+Y3RsKTsKLQkJbWRwNV9jcnRj LT5jdGwgPSBOVUxMOwotCX0KIH0KIAogc3RhdGljIGludCBtZHA1X2NydGNfc2V0X3Byb3BlcnR5 KHN0cnVjdCBkcm1fY3J0YyAqY3J0YywKQEAgLTQ5NSw2ICs1MDMsMTAgQEAgc3RhdGljIGludCBt ZHA1X2NydGNfY3Vyc29yX21vdmUoc3RydWN0IGRybV9jcnRjICpjcnRjLCBpbnQgeCwgaW50IHkp CiAJdWludDMyX3Qgcm9pX2g7CiAJdW5zaWduZWQgbG9uZyBmbGFnczsKIAorCS8qIEluIGNhc2Ug dGhlIENSVEMgaXMgZGlzYWJsZWQsIGp1c3QgZHJvcCB0aGUgY3Vyc29yIHVwZGF0ZSAqLworCWlm ICh1bmxpa2VseSghY3J0Yy0+c3RhdGUtPmVuYWJsZSkpCisJCXJldHVybiAwOworCiAJeCA9ICh4 ID4gMCkgPyB4IDogMDsKIAl5ID0gKHkgPiAwKSA/IHkgOiAwOwogCi0tIApRdWFsY29tbSBJbm5v dmF0aW9uIENlbnRlciwgSW5jLgoKVGhlIFF1YWxjb21tIElubm92YXRpb24gQ2VudGVyLCBJbmMu IGlzIGEgbWVtYmVyIG9mIHRoZSBDb2RlIEF1cm9yYSBGb3J1bSwgYSBMaW51eCBGb3VuZGF0aW9u IENvbGxhYm9yYXRpdmUgUHJvamVjdAoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX18KZHJpLWRldmVsIG1haWxpbmcgbGlzdApkcmktZGV2ZWxAbGlzdHMuZnJl ZWRlc2t0b3Aub3JnCmh0dHA6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5m by9kcmktZGV2ZWwK