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[109.252.193.159]) by smtp.googlemail.com with ESMTPSA id v12sm1474128lji.3.2020.11.13.07.55.28 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 13 Nov 2020 07:55:29 -0800 (PST) Subject: Re: [PATCH v1 11/30] drm/tegra: dc: Support OPP and SoC core voltage scaling To: Mark Brown References: <20201104234427.26477-12-digetx@gmail.com> <20201110202945.GF2375022@ulmo> <20201110203257.GC5957@sirena.org.uk> <72ae6462-13df-9fcb-510e-8e57eee0f035@gmail.com> <20201111115534.GA4847@sirena.org.uk> <20201112171600.GD4742@sirena.org.uk> <20201112200123.GF4742@sirena.org.uk> <20201113142937.GB4828@sirena.org.uk> From: Dmitry Osipenko Message-ID: <7f066805-97d9-088f-e89d-a554fe478574@gmail.com> Date: Fri, 13 Nov 2020 18:55:27 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.4.2 MIME-Version: 1.0 In-Reply-To: <20201113142937.GB4828@sirena.org.uk> Content-Language: en-US X-BeenThere: driverdev-devel@linuxdriverproject.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux Driver Project Developer List 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, Thierry Reding , 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, Peter Geis Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: driverdev-devel-bounces@linuxdriverproject.org Sender: "devel" MTMuMTEuMjAyMCAxNzoyOSwgTWFyayBCcm93biDQv9C40YjQtdGCOgo+IE9uIEZyaSwgTm92IDEz LCAyMDIwIGF0IDAxOjM3OjAxQU0gKzAzMDAsIERtaXRyeSBPc2lwZW5rbyB3cm90ZToKPj4gMTIu MTEuMjAyMCAyMzowMSwgTWFyayBCcm93biDQv9C40YjQtdGCOgo+Pj4+IEJ1dCBpdCdzIG5vdCBh bGxvd2VkIHRvIGNoYW5nZSB2b2x0YWdlIG9mIGEgZHVtbXkgcmVndWxhdG9yLCBpcyBpdAo+Pj4+ IGludGVudGlvbmFsPwo+IAo+Pj4gT2YgY291cnNlIG5vdCwgd2UgY2FuJ3Qga25vdyBpZiB0aGUg cmVxdWVzdGVkIG5ldyB2b2x0YWdlIGlzIHZhbGlkIC0gdGhlCj4+PiBkcml2ZXIgd291bGQgaGF2 ZSB0byBoYXZlIGV4cGxpY3Qgc3VwcG9ydCBmb3IgaGFuZGxpbmcgc2l0dWF0aW9ucyB3aGVyZQo+ Pj4gaXQncyBub3QgcG9zc2libGUgdG8gY2hhbmdlIHRoZSB2b2x0YWdlICh3aGljaCBpdCBjYW4g ZGV0ZWN0IHRocm91Z2gKPj4+IGVudW1lcmF0aW5nIHRoZSB2YWx1ZXMgaXQgd2FudHMgdG8gc2V0 IGF0IHN0YXJ0dXApLgo+IAo+Pj4gW1JlcXVlc3RpbmcgdGhlIHNhbWUgc3VwcGx5IG11bHRpcGxl IHRpbWVzXQo+IAo+PiBCdXQgaG93IGRyaXZlciBpcyBzdXBwb3NlZCB0byByZWNvZ25pemUgdGhh dCBpdCdzIGEgZHVtbXkgb3IgYnVnZ3kKPj4gcmVndWxhdG9yIGlmIGl0IHJlamVjdHMgYWxsIHZv bHRhZ2VzPwo+IAo+IEl0J3Mgbm90IGNsZWFyIGlmIGl0IG1hdHRlcnMgLSBpdCdzIG1vcmUgYSBw b2xpY3kgZGVjaXNpb24gb24gdGhlIHBhcnQKPiBvZiB0aGUgZHJpdmVyIGFib3V0IHdoYXQgaXQg dGhpbmtzIHNhZmUgZXJyb3IgaGFuZGxpbmcgaXMuICBJZiBpdCdzIG5vdAo+IHBvc3NpYmxlIHRv IHJlYWQgdm9sdGFnZXMgZnJvbSB0aGUgcmVndWxhdG9yIHRoZSBjb25zdW1lciBkcml2ZXIgaGFz IHRvCj4gZGVjaWRlIHdoYXQgaXQgdGhpbmtzIGl0J3Mgc2FmZSBmb3IgaXQgdG8gZG8sIGVpdGhl ciB3YXkgaXQgaGFzIG5vIGlkZWEKPiB3aGF0IHRoZSBhY3R1YWwgY3VycmVudCB2b2x0YWdlIGlz LiAgSXQgY291bGQgYXNzdW1lIHRoYXQgaXQncyBzb21ldGhpbmcKPiB0aGF0IHN1cHBvcnRzIGFs bCB0aGUgdXNlIGNhc2VzIGl0IHdhbnRzIHRvIHVzZSBhbmQganVzdCBjYXJyeSBvbiB3aXRoCj4g bm8gY29uZmlndXJhdGlvbiBvZiB2b2x0YWdlcywgaXQgY291bGQgZGVjaWRlIHRoYXQgaXQgbWln aHQgbm90IHN1cHBvcnQKPiBldmVyeXRoaW5nIGFuZCBub3QgbWFrZSBhbnkgY2hhbmdlcyB0byBi ZSBzYWZlLCBvciBkbyBzb21ldGhpbmcgbGlrZQo+IHRyeSB0byBmaWd1cmUgb3V0IHRoYXQgaWYg d2UncmUgY3VycmVudGx5IGF0IGEgZ2l2ZW4gT1BQIHRoYXQncyB0aGUgdG9wCj4gT1BQIHBvc3Np YmxlLiAgSGlzdG9yaWNhbGx5IHdoZW4gd2UndmUgbm90IGhhZCByZWd1bGF0b3IgY29udHJvbCBp bgo+IHRoZXNlIGRyaXZlcnMgc28gdGhleSBoYXZlIGVmZmVjdGl2ZWx5IGdvbmUgd2l0aCB0aGUg Zmlyc3Qgb3B0aW9uIG9mCj4ganVzdCBhc3N1bWluZyBpdCdzIGEgZ2VuZXJhbGx5IHNhZmUgdmFs dWUsIHRoaXMgb2Z0ZW4gYWxpZ25zIHdpdGggd2hhdAo+IHRoZSBwb3dlciBvbiByZXF1aXJlbWVu dHMgZm9yIFNvQ3MgYXJlIHNvIGl0J3Mgbm90IHVucmVhc29uYWJsZS4KCkkgZG9uJ3QgdGhpbmsg dGhhdCBpbiBhIGNhc2Ugb2YgdGhpcyBwYXJ0aWN1bGFyIGRyaXZlciB0aGVyZSBpcyBhIHdheSB0 bwptYWtlIGFueSBkZWNpc2lvbnMgb3RoZXIgdGhhbiB0byBhc3N1bWUgdGhhdCBhbGwgY2hhbmdl cyBhcmUgc2FmZSB0byBiZQpkb25lIGlmIHJlZ3VsYXRvciBpc24ndCBzcGVjaWZpZWQgaW4gYSBk ZXZpY2UtdHJlZS4KCklmIHJlZ3VsYXRvcl9nZXQoKSByZXR1cm5zIGEgZHVtbXkgcmVndWxhdG9y LCB0aGVuIHRoaXMgbWVhbnMgdGhhdApyZWd1bGF0b3IgaXNuJ3Qgc3BlY2lmaWVkIGluIGEgZGV2 aWNlLXRyZWUuIEJ1dCB0aGVuIHRoZSBvbmx5IHdheSBmb3IgYQpjb25zdW1lciBkcml2ZXIgdG8g Y2hlY2sgd2hldGhlciByZWd1bGF0b3IgaXMgZHVtbXksIGlzIHRvIGNoZWNrCnByZXNlbmNlIG9m IHRoZSBzdXBwbHkgcHJvcGVydHkgaW4gYSBkZXZpY2UtdHJlZS4KCldlIHdhbnQgdG8gZW1pdCBl cnJvciBtZXNzYWdlcyB3aGVuIHNvbWV0aGluZyBnb2VzIHdyb25nLCBmb3IgZXhhbXBsZQp3aGVu IHJlZ3VsYXRvciB2b2x0YWdlIGZhaWxzIHRvIGNoYW5nZS4gSXQncyBmaW5lIHRoYXQgdm9sdGFn ZSBjaGFuZ2VzCmFyZSBmYWlsaW5nIGZvciBhIGR1bW15IHJlZ3VsYXRvciwgYnV0IHRoZW4gY29u c3VtZXIgZHJpdmVyIHNob3VsZG4ndApyZWNvZ25pemUgaXQgYXMgYSBlcnJvciBjb25kaXRpb24u CgpUaGUgcmVndWxhdG9yX2dldF9vcHRpb25hbCgpIHByb3ZpZGVzIGEgbW9yZSBjb25zaXN0ZW50 IGFuZApzdHJhaWdodGZvcndhcmQgd2F5IGZvciBjb25zdW1lciBkcml2ZXJzIHRvIGNoZWNrIHBy ZXNlbmNlIG9mIGEgcGh5c2ljYWwKdm9sdGFnZSByZWd1bGF0b3IgaW4gY29tcGFyaXNvbiB0byBk ZWFsaW5nIHdpdGggYSByZWd1bGF0b3JfZ2V0KCkuIFRoZQpkdW1teSByZWd1bGF0b3IgaXMgbmlj ZSB0byB1c2Ugd2hlbiB0aGVyZSBpcyBubyBuZWVkIHRvIGNoYW5nZQpyZWd1bGF0b3IncyB2b2x0 YWdlLCB3aGljaCBkb2Vzbid0IHdvcmsgZm9yIGEgZHVtbXkgcmVndWxhdG9yLgpfX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpkZXZlbCBtYWlsaW5nIGxpc3QK ZGV2ZWxAbGludXhkcml2ZXJwcm9qZWN0Lm9yZwpodHRwOi8vZHJpdmVyZGV2LmxpbnV4ZHJpdmVy cHJvamVjdC5vcmcvbWFpbG1hbi9saXN0aW5mby9kcml2ZXJkZXYtZGV2ZWwK