From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chris Zhong Subject: [PATCH v3 3/4] drm/rockchip/dsi: enable the grf clk before writing grf registers Date: Fri, 17 Mar 2017 11:54:23 +0800 Message-ID: <1489722865-22122-4-git-send-email-zyw@rock-chips.com> References: <1489722865-22122-1-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: <1489722865-22122-1-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 LS0KCkNoYW5nZXMgaW4gdjM6Ci0gYWRkIGEgRFdfTUlQSV9ORUVEU19HUkZfQ0xLIGZvciBSSzMz OTkKCkNoYW5nZXMgaW4gdjI6Ci0gY2hlY2sgdGhlIGdyZl9jbGsgb25seSBmb3IgUkszMzk5Cgog ZHJpdmVycy9ncHUvZHJtL3JvY2tjaGlwL2R3LW1pcGktZHNpLmMgfCAyNiArKysrKysrKysrKysr KysrKysrKysrKysrLQogMSBmaWxlIGNoYW5nZWQsIDI1IGluc2VydGlvbnMoKyksIDEgZGVsZXRp b24oLSkKCmRpZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vcm9ja2NoaXAvZHctbWlwaS1kc2ku YyBiL2RyaXZlcnMvZ3B1L2RybS9yb2NrY2hpcC9kdy1taXBpLWRzaS5jCmluZGV4IDY4ZjQ4YjAu LjVhMTgyODEgMTAwNjQ0Ci0tLSBhL2RyaXZlcnMvZ3B1L2RybS9yb2NrY2hpcC9kdy1taXBpLWRz aS5jCisrKyBiL2RyaXZlcnMvZ3B1L2RybS9yb2NrY2hpcC9kdy1taXBpLWRzaS5jCkBAIC0yNTIs NiArMjUyLDcgQEAKICNkZWZpbmUgVEhTX1pFUk9fUFJPR1JBTV9FTglCSVQoNikKIAogI2RlZmlu ZSBEV19NSVBJX05FRURTX1BIWV9DRkdfQ0xLCUJJVCgwKQorI2RlZmluZSBEV19NSVBJX05FRURT X0dSRl9DTEsJCUJJVCgxKQogCiBlbnVtIHsKIAlCQU5ER0FQXzk3XzA3LApAQCAtMjk0LDYgKzI5 NSw3IEBAIHN0cnVjdCBkd19taXBpX2RzaSB7CiAJc3RydWN0IHJlZ21hcCAqZ3JmX3JlZ21hcDsK IAl2b2lkIF9faW9tZW0gKmJhc2U7CiAKKwlzdHJ1Y3QgY2xrICpncmZfY2xrOwogCXN0cnVjdCBj bGsgKnBsbHJlZl9jbGs7CiAJc3RydWN0IGNsayAqcGNsazsKIAlzdHJ1Y3QgY2xrICpwaHlfY2Zn X2NsazsKQEAgLTk4Miw2ICs5ODQsMTcgQEAgc3RhdGljIHZvaWQgZHdfbWlwaV9kc2lfZW5jb2Rl cl9lbmFibGUoc3RydWN0IGRybV9lbmNvZGVyICplbmNvZGVyKQogCWR3X21pcGlfZHNpX2RwaHlf aW50ZXJmYWNlX2NvbmZpZyhkc2kpOwogCWR3X21pcGlfZHNpX2NsZWFyX2Vycihkc2kpOwogCisJ LyoKKwkgKiBGb3IgdGhlIFJLMzM5OSwgdGhlIGNsayBvZiBncmYgbXVzdCBiZSBlbmFibGVkIGJl Zm9yZSB3cml0aW5nIGdyZgorCSAqIHJlZ2lzdGVyLiBBbmQgZm9yIFJLMzI4OCBvciBvdGhlciBz b2MsIHRoaXMgZ3JmX2NsayBtdXN0IGJlIE5VTEwsCisJICogdGhlIGNsa19wcmVwYXJlX2VuYWJs ZSByZXR1cm4gdHJ1ZSBkaXJlY3RseS4KKwkgKi8KKwlyZXQgPSBjbGtfcHJlcGFyZV9lbmFibGUo ZHNpLT5ncmZfY2xrKTsKKwlpZiAocmV0KSB7CisJCWRldl9lcnIoZHNpLT5kZXYsICJGYWlsZWQg dG8gZW5hYmxlIGdyZl9jbGtcbiIpOworCQlyZXR1cm47CisJfQorCiAJaWYgKHBkYXRhLT5ncmZf ZHNpMF9tb2RlX3JlZykKIAkJcmVnbWFwX3dyaXRlKGRzaS0+Z3JmX3JlZ21hcCwgcGRhdGEtPmdy Zl9kc2kwX21vZGVfcmVnLAogCQkJICAgICBwZGF0YS0+Z3JmX2RzaTBfbW9kZSk7CkBAIC0xMDA2 LDYgKzEwMTksOCBAQCBzdGF0aWMgdm9pZCBkd19taXBpX2RzaV9lbmNvZGVyX2VuYWJsZShzdHJ1 Y3QgZHJtX2VuY29kZXIgKmVuY29kZXIpCiAJcmVnbWFwX3dyaXRlKGRzaS0+Z3JmX3JlZ21hcCwg cGRhdGEtPmdyZl9zd2l0Y2hfcmVnLCB2YWwpOwogCWRldl9kYmcoZHNpLT5kZXYsICJ2b3AgJXMg b3V0cHV0IHRvIGRzaTBcbiIsIChtdXgpID8gIkxJVCIgOiAiQklHIik7CiAJZHNpLT5kcG1zX21v ZGUgPSBEUk1fTU9ERV9EUE1TX09OOworCisJY2xrX2Rpc2FibGVfdW5wcmVwYXJlKGRzaS0+Z3Jm X2Nsayk7CiB9CiAKIHN0YXRpYyBpbnQKQEAgLTExMzksNyArMTE1NCw3IEBAIHN0YXRpYyBzdHJ1 Y3QgZHdfbWlwaV9kc2lfcGxhdF9kYXRhIHJrMzM5OV9taXBpX2RzaV9kcnZfZGF0YSA9IHsKIAku Z3JmX3N3aXRjaF9yZWcgPSBSSzMzOTlfR1JGX1NPQ19DT04xOSwKIAkuZ3JmX2RzaTBfbW9kZSA9 IFJLMzM5OV9HUkZfRFNJX01PREUsCiAJLmdyZl9kc2kwX21vZGVfcmVnID0gUkszMzk5X0dSRl9T T0NfQ09OMjIsCi0JLmZsYWdzID0gRFdfTUlQSV9ORUVEU19QSFlfQ0ZHX0NMSywKKwkuZmxhZ3Mg PSBEV19NSVBJX05FRURTX1BIWV9DRkdfQ0xLIHwgRFdfTUlQSV9ORUVEU19HUkZfQ0xLLAogCS5t YXhfZGF0YV9sYW5lcyA9IDQsCiB9OwogCkBAIC0xMjQwLDYgKzEyNTUsMTUgQEAgc3RhdGljIGlu dCBkd19taXBpX2RzaV9iaW5kKHN0cnVjdCBkZXZpY2UgKmRldiwgc3RydWN0IGRldmljZSAqbWFz dGVyLAogCQl9CiAJfQogCisJaWYgKHBkYXRhLT5mbGFncyAmIERXX01JUElfTkVFRFNfR1JGX0NM SykgeworCQlkc2ktPmdyZl9jbGsgPSBkZXZtX2Nsa19nZXQoZGV2LCAiZ3JmIik7CisJCWlmIChJ U19FUlIoZHNpLT5ncmZfY2xrKSkgeworCQkJcmV0ID0gUFRSX0VSUihkc2ktPmdyZl9jbGspOwor CQkJZGV2X2VycihkZXYsICJVbmFibGUgdG8gZ2V0IGdyZl9jbGs6ICVkXG4iLCByZXQpOworCQkJ cmV0dXJuIHJldDsKKwkJfQorCX0KKwogCXJldCA9IGNsa19wcmVwYXJlX2VuYWJsZShkc2ktPnBs bHJlZl9jbGspOwogCWlmIChyZXQpIHsKIAkJZGV2X2VycihkZXYsICIlczogRmFpbGVkIHRvIGVu YWJsZSBwbGxyZWZfY2xrXG4iLCBfX2Z1bmNfXyk7Ci0tIAoyLjYuMwoKX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KZHJpLWRldmVsIG1haWxpbmcgbGlzdApk cmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Au b3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVsCg==