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[109.252.193.159]) by smtp.googlemail.com with ESMTPSA id m7sm1658405ljb.37.2020.11.10.13.17.06 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 10 Nov 2020 13:17:07 -0800 (PST) Subject: Re: [PATCH v1 18/30] pwm: tegra: Support OPP and core voltage scaling To: Thierry Reding References: <20201104234427.26477-1-digetx@gmail.com> <20201104234427.26477-19-digetx@gmail.com> <20201110205057.GH2375022@ulmo> From: Dmitry Osipenko Message-ID: Date: Wed, 11 Nov 2020 00:17:04 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20201110205057.GH2375022@ulmo> Content-Language: en-US X-Mailman-Approved-At: Wed, 11 Nov 2020 07:54:43 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Chen , Ulf Hansson , Liam Girdwood , dri-devel@lists.freedesktop.org, Adrian Hunter , devicetree@vger.kernel.org, Lee Jones , Marek Szyprowski , devel@driverdev.osuosl.org, linux-samsung-soc@vger.kernel.org, Nicolas Chauvet , Krzysztof Kozlowski , Jonathan Hunter , Alan Stern , =?UTF-8?Q?Uwe_Kleine-K=c3=b6nig?= , linux-media@vger.kernel.org, linux-pwm@vger.kernel.org, Rob Herring , linux-tegra@vger.kernel.org, Mauro Carvalho Chehab , Greg Kroah-Hartman , linux-usb@vger.kernel.org, linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, Mark Brown , Peter Geis Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" MTAuMTEuMjAyMCAyMzo1MCwgVGhpZXJyeSBSZWRpbmcg0L/QuNGI0LXRgjoKPiBPbiBUaHUsIE5v diAwNSwgMjAyMCBhdCAwMjo0NDoxNUFNICswMzAwLCBEbWl0cnkgT3NpcGVua28gd3JvdGU6Cj4g Wy4uLl0KPj4gK3N0YXRpYyB2b2lkIHRlZ3JhX3B3bV9kZWluaXRfb3BwX3RhYmxlKHZvaWQgKmRh dGEpCj4+ICt7Cj4+ICsJc3RydWN0IGRldmljZSAqZGV2ID0gZGF0YTsKPj4gKwlzdHJ1Y3Qgb3Bw X3RhYmxlICpvcHBfdGFibGU7Cj4+ICsKPj4gKwlvcHBfdGFibGUgPSBkZXZfcG1fb3BwX2dldF9v cHBfdGFibGUoZGV2KTsKPj4gKwlkZXZfcG1fb3BwX29mX3JlbW92ZV90YWJsZShkZXYpOwo+PiAr CWRldl9wbV9vcHBfcHV0X3JlZ3VsYXRvcnMob3BwX3RhYmxlKTsKPj4gKwlkZXZfcG1fb3BwX3B1 dF9vcHBfdGFibGUob3BwX3RhYmxlKTsKPj4gK30KPj4gKwo+PiArc3RhdGljIGludCBkZXZtX3Rl Z3JhX3B3bV9pbml0X29wcF90YWJsZShzdHJ1Y3QgZGV2aWNlICpkZXYpCj4+ICt7Cj4+ICsJc3Ry dWN0IG9wcF90YWJsZSAqb3BwX3RhYmxlOwo+PiArCWNvbnN0IGNoYXIgKnJuYW1lID0gImNvcmUi Owo+PiArCWludCBlcnI7Cj4+ICsKPj4gKwkvKiB2b2x0YWdlIHNjYWxpbmcgaXMgb3B0aW9uYWwg Ki8KPj4gKwlpZiAoZGV2aWNlX3Byb3BlcnR5X3ByZXNlbnQoZGV2LCAiY29yZS1zdXBwbHkiKSkK Pj4gKwkJb3BwX3RhYmxlID0gZGV2X3BtX29wcF9zZXRfcmVndWxhdG9ycyhkZXYsICZybmFtZSwg MSk7Cj4+ICsJZWxzZQo+PiArCQlvcHBfdGFibGUgPSBkZXZfcG1fb3BwX2dldF9vcHBfdGFibGUo ZGV2KTsKPj4gKwo+PiArCWlmIChJU19FUlIob3BwX3RhYmxlKSkKPj4gKwkJcmV0dXJuIGRldl9l cnJfcHJvYmUoZGV2LCBQVFJfRVJSKG9wcF90YWJsZSksCj4+ICsJCQkJICAgICAiZmFpbGVkIHRv IHByZXBhcmUgT1BQIHRhYmxlXG4iKTsKPj4gKwo+PiArCS8qCj4+ICsJICogT1BQIHRhYmxlIHBy ZXNlbmNlIGlzIG9wdGlvbmFsIGFuZCB3ZSB3YW50IHRoZSBzZXRfcmF0ZSgpIG9mIE9QUAo+PiAr CSAqIEFQSSB0byB3b3JrIHNpbWlsYXJseSB0byBjbGtfc2V0X3JhdGUoKSBpZiB0YWJsZSBpcyBt aXNzaW5nIGluIGEKPj4gKwkgKiBkZXZpY2UtdHJlZS4gIFRoZSBhZGRfdGFibGUoKSBlcnJvcnMg b3V0IGlmIE9QUCBpcyBtaXNzaW5nIGluIERULgo+PiArCSAqLwo+PiArCWlmIChkZXZpY2VfcHJv cGVydHlfcHJlc2VudChkZXYsICJvcGVyYXRpbmctcG9pbnRzLXYyIikpIHsKPj4gKwkJZXJyID0g ZGV2X3BtX29wcF9vZl9hZGRfdGFibGUoZGV2KTsKPj4gKwkJaWYgKGVycikgewo+PiArCQkJZGV2 X2VycihkZXYsICJmYWlsZWQgdG8gYWRkIE9QUCB0YWJsZTogJWRcbiIsIGVycik7Cj4+ICsJCQln b3RvIHB1dF90YWJsZTsKPj4gKwkJfQo+PiArCX0KPj4gKwo+PiArCWVyciA9IGRldm1fYWRkX2Fj dGlvbihkZXYsIHRlZ3JhX3B3bV9kZWluaXRfb3BwX3RhYmxlLCBkZXYpOwo+PiArCWlmIChlcnIp Cj4+ICsJCWdvdG8gcmVtb3ZlX3RhYmxlOwo+PiArCj4+ICsJcmV0dXJuIDA7Cj4+ICsKPj4gK3Jl bW92ZV90YWJsZToKPj4gKwlkZXZfcG1fb3BwX29mX3JlbW92ZV90YWJsZShkZXYpOwo+PiArcHV0 X3RhYmxlOgo+PiArCWRldl9wbV9vcHBfcHV0X3JlZ3VsYXRvcnMob3BwX3RhYmxlKTsKPj4gKwo+ PiArCXJldHVybiBlcnI7Cj4+ICt9Cj4gCj4gVGhlc2UgdHdvIGZ1bmN0aW9ucyBzZWVtIHRvIGJl IGhlYXZpbHkgYm9pbGVycGxhdGUgYWNyb3NzIGFsbCB0aGVzZQo+IGRyaXZlcnMuIEhhdmUgeW91 IGNvbnNpZGVyZWQgc3BsaXR0aW5nIHRoZXNlIG91dCBpbnRvIHNlcGFyYXRlIGhlbHBlcnM/CgpU aGUgaGVscGVyIGlzIGFscmVhZHkgcHJlcGFyZWQgZm9yIHYyLgpfX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fXwpkcmktZGV2ZWwgbWFpbGluZyBsaXN0CmRyaS1k ZXZlbEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcv bWFpbG1hbi9saXN0aW5mby9kcmktZGV2ZWwK