From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Subject: usb: musb: call pm_runtime_{get,put}_sync before reading vbus registers From: Bin Liu Message-Id: <20180226155716.GB20609@uda0271908> Date: Mon, 26 Feb 2018 09:57:16 -0600 To: Merlijn Wajer Cc: linux-omap@vger.kernel.org, tony@atomide.com, Greg Kroah-Hartman , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org List-ID: SGksCgpPbiBNb24sIEZlYiAyNiwgMjAxOCBhdCAxMTo1NjowOEFNICswMTAwLCBNZXJsaWpuIFdh amVyIHdyb3RlOgo+IFdpdGhvdXQgcG1fcnVudGltZV97Z2V0LHB1dH1fc3luYyBjYWxscyBpbiBw bGFjZSwgcmVhZGluZwo+IHZidXMgc3RhdHVzIHZpYSAvc3lzIGNhdXNlcyB0aGUgZm9sbG93aW5n IGVycm9yOgo+IAo+IFVuaGFuZGxlZCBmYXVsdDogZXh0ZXJuYWwgYWJvcnQgb24gbm9uLWxpbmVm ZXRjaCAoMHgxMDI4KSBhdCAweGZhMGFiMDYwCj4gcGdkID0gYjMzM2U4MjIKPiBbZmEwYWIwNjBd ICpwZ2Q9NDgwMTE0NTIoYmFkKQo+IAo+IFs8YzA1MjYxYjA+XSAobXVzYl9kZWZhdWx0X3JlYWRi KSBmcm9tIFs8YzA1MjViZDA+XSAobXVzYl92YnVzX3Nob3crMHg1OC8weGU0KQo+IFs8YzA1MjVi ZDA+XSAobXVzYl92YnVzX3Nob3cpIGZyb20gWzxjMDRjMDE0OD5dIChkZXZfYXR0cl9zaG93KzB4 MjAvMHg0NCkKPiBbPGMwNGMwMTQ4Pl0gKGRldl9hdHRyX3Nob3cpIGZyb20gWzxjMDI1OWY3ND5d IChzeXNmc19rZl9zZXFfc2hvdysweDgwLzB4ZGMpCj4gWzxjMDI1OWY3ND5dIChzeXNmc19rZl9z ZXFfc2hvdykgZnJvbSBbPGMwMjEwYmFjPl0gKHNlcV9yZWFkKzB4MjUwLzB4NDQ4KQo+IFs8YzAy MTBiYWM+XSAoc2VxX3JlYWQpIGZyb20gWzxjMDFlZGI0MD5dIChfX3Zmc19yZWFkKzB4MWMvMHgx MTgpCj4gWzxjMDFlZGI0MD5dIChfX3Zmc19yZWFkKSBmcm9tIFs8YzAxZWRjY2M+XSAodmZzX3Jl YWQrMHg5MC8weDE0NCkKPiBbPGMwMWVkY2NjPl0gKHZmc19yZWFkKSBmcm9tIFs8YzAxZWUxZDA+ XSAoU3lTX3JlYWQrMHgzYy8weDc0KQo+IFs8YzAxZWUxZDA+XSAoU3lTX3JlYWQpIGZyb20gWzxj MDEwNmZlMD5dIChyZXRfZmFzdF9zeXNjYWxsKzB4MC8weDU0KQo+IAo+IFNvbHV0aW9uIHdhcyBz dWdnZXN0ZWQgYnkgVG9ueSBMaW5kZ3JlbiA8dG9ueUBhdG9taWRlLmNvbT4uCj4gCj4gU2lnbmVk LW9mZi1ieTogTWVybGlqbiBXYWplciA8bWVybGlqbkB3aXp6dXAub3JnPgo+IC0tLQo+ICBkcml2 ZXJzL3VzYi9tdXNiL211c2JfY29yZS5jIHwgNCArKysrCj4gIDEgZmlsZSBjaGFuZ2VkLCA0IGlu c2VydGlvbnMoKykKPiAKPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy91c2IvbXVzYi9tdXNiX2NvcmUu YyBiL2RyaXZlcnMvdXNiL211c2IvbXVzYl9jb3JlLmMKPiBpbmRleCBlZWY0YWQ1NzhiMzEuLmNl YWE0MGVmMGU3MyAxMDA2NDQKPiAtLS0gYS9kcml2ZXJzL3VzYi9tdXNiL211c2JfY29yZS5jCj4g KysrIGIvZHJpdmVycy91c2IvbXVzYi9tdXNiX2NvcmUuYwo+IEBAIC0xNzYwLDYgKzE3NjAsOCBA QCB2YnVzX3Nob3coc3RydWN0IGRldmljZSAqZGV2LCBzdHJ1Y3QgZGV2aWNlX2F0dHJpYnV0ZSAq YXR0ciwgY2hhciAqYnVmKQo+ICAJdmFsID0gbXVzYi0+YV93YWl0X2Jjb247Cj4gIAl2YnVzID0g bXVzYl9wbGF0Zm9ybV9nZXRfdmJ1c19zdGF0dXMobXVzYik7Cj4gIAlpZiAodmJ1cyA8IDApIHsK PiArCQlwbV9ydW50aW1lX2dldF9zeW5jKGRldik7Cj4gKwo+ICAJCS8qIFVzZSBkZWZhdWx0IE1V U0IgbWV0aG9kIGJ5IG1lYW5zIG9mIERFVkNUTCByZWdpc3RlciAqLwo+ICAJCWRldmN0bCA9IG11 c2JfcmVhZGIobXVzYi0+bXJlZ3MsIE1VU0JfREVWQ1RMKTsKPiAgCQlpZiAoKGRldmN0bCAmIE1V U0JfREVWQ1RMX1ZCVVMpCj4gQEAgLTE3NjcsNiArMTc2OSw4IEBAIHZidXNfc2hvdyhzdHJ1Y3Qg ZGV2aWNlICpkZXYsIHN0cnVjdCBkZXZpY2VfYXR0cmlidXRlICphdHRyLCBjaGFyICpidWYpCj4g IAkJCXZidXMgPSAxOwo+ICAJCWVsc2UKPiAgCQkJdmJ1cyA9IDA7Cj4gKwo+ICsJCXBtX3J1bnRp bWVfcHV0X3N5bmMoZGV2KTsKPiAgCX0KPiAgCXNwaW5fdW5sb2NrX2lycXJlc3RvcmUoJm11c2It PmxvY2ssIGZsYWdzKTsKClRoYW5rcyBmb3IgdGhlIHBhdGNoLCBidXQgSSBnb3Qgc3BpbmxvY2sg ZGVhZGxvY2sgd2hlbiB0ZXN0aW5nIGl0LiBJCnRoaW5rIHRoZSBmdW5jdGlvbiBwYWlyIHNob3Vs ZCBiZSBhdCB0aGUgb3V0c2lkZSBzY29wZSBvZiB0aGUKc3Bpbl9sb2NrL3VubG9jaywgZG9lc24n dCBpdD8KClJlZ2FyZHMsCi1CaW4uCi0tLQpUbyB1bnN1YnNjcmliZSBmcm9tIHRoaXMgbGlzdDog c2VuZCB0aGUgbGluZSAidW5zdWJzY3JpYmUgbGludXgtdXNiIiBpbgp0aGUgYm9keSBvZiBhIG1l c3NhZ2UgdG8gbWFqb3Jkb21vQHZnZXIua2VybmVsLm9yZwpNb3JlIG1ham9yZG9tbyBpbmZvIGF0 ICBodHRwOi8vdmdlci5rZXJuZWwub3JnL21ham9yZG9tby1pbmZvLmh0bWwK