From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chris Zhong Subject: [PATCH 2/3] drm/rockchip/dsi: enable the grf clk before writing grf registers Date: Wed, 15 Mar 2017 16:42:31 +0800 Message-ID: <1489567352-3333-2-git-send-email-zyw@rock-chips.com> References: <1489567352-3333-1-git-send-email-zyw@rock-chips.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <1489567352-3333-1-git-send-email-zyw@rock-chips.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: linux-rockchip@lists.infradead.org Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Chris Zhong , linux-arm-kernel@lists.infradead.org List-Id: linux-rockchip.vger.kernel.org Rm9yIFJLMzM5OSwgdGhlIGdyZiBjbGsgc2hvdWxkIGJlIGVuYWJsZWQgYmVmb3JlIHdyaXRpbmcg Z3JmIHJlZ2lzdGVycywKb3RoZXJ3aXNlIHRoZSByZWdpc3RlciB2YWx1ZSBjYW4gbm90IGJlIGNo YW5nZWQuCgpTaWduZWQtb2ZmLWJ5OiBDaHJpcyBaaG9uZyA8enl3QHJvY2stY2hpcHMuY29tPgot LS0KCiBkcml2ZXJzL2dwdS9kcm0vcm9ja2NoaXAvZHctbWlwaS1kc2kuYyB8IDI0ICsrKysrKysr KysrKysrKysrKysrKysrKwogMSBmaWxlIGNoYW5nZWQsIDI0IGluc2VydGlvbnMoKykKCmRpZmYg LS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vcm9ja2NoaXAvZHctbWlwaS1kc2kuYyBiL2RyaXZlcnMv Z3B1L2RybS9yb2NrY2hpcC9kdy1taXBpLWRzaS5jCmluZGV4IGY4NGY5YWUuLmQ4ZjI0ZjIgMTAw NjQ0Ci0tLSBhL2RyaXZlcnMvZ3B1L2RybS9yb2NrY2hpcC9kdy1taXBpLWRzaS5jCisrKyBiL2Ry aXZlcnMvZ3B1L2RybS9yb2NrY2hpcC9kdy1taXBpLWRzaS5jCkBAIC0yOTEsNiArMjkxLDcgQEAg c3RydWN0IGR3X21pcGlfZHNpIHsKIAlzdHJ1Y3QgcmVnbWFwICpncmZfcmVnbWFwOwogCXZvaWQg X19pb21lbSAqYmFzZTsKIAorCXN0cnVjdCBjbGsgKmdyZl9jbGs7CiAJc3RydWN0IGNsayAqcGxs cmVmX2NsazsKIAlzdHJ1Y3QgY2xrICpwY2xrOwogCXN0cnVjdCBjbGsgKnBoeV9jZmdfY2xrOwpA QCAtOTc5LDYgKzk4MCwxNiBAQCBzdGF0aWMgdm9pZCBkd19taXBpX2RzaV9lbmNvZGVyX2VuYWJs ZShzdHJ1Y3QgZHJtX2VuY29kZXIgKmVuY29kZXIpCiAJZHdfbWlwaV9kc2lfZHBoeV9pbnRlcmZh Y2VfY29uZmlnKGRzaSk7CiAJZHdfbWlwaV9kc2lfY2xlYXJfZXJyKGRzaSk7CiAKKwkvKgorCSAq IEZvciB0aGUgUkszMzk5LCB0aGUgY2xrIG9mIGdyZiBtdXN0IGJlIGVuYWJsZWQgYmVmb3JlIHdy aXRpbmcgZ3JmCisJICogcmVnaXN0ZXIuCisJICovCisJcmV0ID0gY2xrX3ByZXBhcmVfZW5hYmxl KGRzaS0+Z3JmX2Nsayk7CisJaWYgKHJldCkgeworCQlkZXZfZXJyKGRzaS0+ZGV2LCAiRmFpbGVk IHRvIGVuYWJsZSBncmZfY2xrXG4iKTsKKwkJcmV0dXJuOworCX0KKwogCWlmIChwZGF0YS0+Z3Jm X2RzaTBfbW9kZV9yZWcpCiAJCXJlZ21hcF93cml0ZShkc2ktPmdyZl9yZWdtYXAsIHBkYXRhLT5n cmZfZHNpMF9tb2RlX3JlZywKIAkJCSAgICAgcGRhdGEtPmdyZl9kc2kwX21vZGUpOwpAQCAtMTAw Myw2ICsxMDE0LDggQEAgc3RhdGljIHZvaWQgZHdfbWlwaV9kc2lfZW5jb2Rlcl9lbmFibGUoc3Ry dWN0IGRybV9lbmNvZGVyICplbmNvZGVyKQogCXJlZ21hcF93cml0ZShkc2ktPmdyZl9yZWdtYXAs IHBkYXRhLT5ncmZfc3dpdGNoX3JlZywgdmFsKTsKIAlkZXZfZGJnKGRzaS0+ZGV2LCAidm9wICVz IG91dHB1dCB0byBkc2kwXG4iLCAobXV4KSA/ICJMSVQiIDogIkJJRyIpOwogCWRzaS0+ZHBtc19t b2RlID0gRFJNX01PREVfRFBNU19PTjsKKworCWNsa19kaXNhYmxlX3VucHJlcGFyZShkc2ktPmdy Zl9jbGspOwogfQogCiBzdGF0aWMgaW50CkBAIC0xMjM4LDYgKzEyNTEsMTcgQEAgc3RhdGljIGlu dCBkd19taXBpX2RzaV9iaW5kKHN0cnVjdCBkZXZpY2UgKmRldiwgc3RydWN0IGRldmljZSAqbWFz dGVyLAogCQlkZXZfZGJnKGRldiwgImhhdmUgbm90IHBoeV9jZmdfY2xrXG4iKTsKIAl9CiAKKwlk c2ktPmdyZl9jbGsgPSBkZXZtX2Nsa19nZXQoZGV2LCAiZ3JmIik7CisJaWYgKElTX0VSUihkc2kt PmdyZl9jbGspKSB7CisJCXJldCA9IFBUUl9FUlIoZHNpLT5ncmZfY2xrKTsKKwkJaWYgKHJldCAh PSAtRU5PRU5UKSB7CisJCQlkZXZfZXJyKGRldiwgIlVuYWJsZSB0byBnZXQgZ3JmX2NsazogJWRc biIsIHJldCk7CisJCQlyZXR1cm4gcmV0OworCQl9CisJCWRzaS0+Z3JmX2NsayA9IE5VTEw7CisJ CWRldl9kYmcoZGV2LCAiaGF2ZSBub3QgZ3JmX2Nsa1xuIik7CisJfQorCiAJcmV0ID0gY2xrX3By ZXBhcmVfZW5hYmxlKGRzaS0+cGxscmVmX2Nsayk7CiAJaWYgKHJldCkgewogCQlkZXZfZXJyKGRl diwgIiVzOiBGYWlsZWQgdG8gZW5hYmxlIHBsbHJlZl9jbGtcbiIsIF9fZnVuY19fKTsKLS0gCjIu Ni4zCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpkcmkt ZGV2ZWwgbWFpbGluZyBsaXN0CmRyaS1kZXZlbEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6 Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9kcmktZGV2ZWwK