From mboxrd@z Thu Jan 1 00:00:00 1970 From: MyungJoo Ham Subject: Re: [PATCH v4 0/3] DEVFREQ, DVFS framework for non-CPU devices Date: Wed, 3 Aug 2011 16:03:58 +0900 Message-ID: References: <1310717510-19002-1-git-send-email-myungjoo.ham@samsung.com> <201107290010.53788.rjw@sisk.pl> <87livba2w6.fsf@ti.com> Reply-To: myungjoo.ham@gmail.com Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <87livba2w6.fsf@ti.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-pm-bounces@lists.linux-foundation.org Errors-To: linux-pm-bounces@lists.linux-foundation.org To: Kevin Hilman Cc: Len Brown , Greg Kroah-Hartman , Kyungmin Park , Thomas Gleixner , linux-pm@lists.linux-foundation.org List-Id: linux-pm@vger.kernel.org T24gV2VkLCBBdWcgMywgMjAxMSBhdCA3OjAyIEFNLCBLZXZpbiBIaWxtYW4gPGtoaWxtYW5AdGku Y29tPiB3cm90ZToKPiAiUmFmYWVsIEouIFd5c29ja2kiIDxyandAc2lzay5wbD4gd3JpdGVzOgo+ Cj4+IE9uIEZyaWRheSwgSnVseSAxNSwgMjAxMSwgTXl1bmdKb28gSGFtIHdyb3RlOgo+Pj4gRm9y IGEgdXNhZ2UgZXhhbXBsZSwgcGxlYXNlIGxvb2sgYXQKPj4+IGh0dHA6Ly9naXQuaW5mcmFkZWFk Lm9yZy91c2Vycy9rbXBhcmsvbGludXgtMi42LXNhbXN1bmcvc2hvcnRsb2cvcmVmcy9oZWFkcy9k ZXZmcmVxCj4+Pgo+Pj4gSW4gdGhlIGFib3ZlIGdpdCB0cmVlLCBEVkZTIChkeW5hbWljIHZvbHRh Z2UgYW5kIGZyZXF1ZW5jeSBzY2FsaW5nKSBtZWNoYW5pc20KPj4+IGlzIGFwcGxpZWQgdG8gdGhl IG1lbW9yeSBidXMgb2YgRXh5bm9zNDIxMCBmb3IgRXh5bm9zNDIxMC1OVVJJIGJvYXJkcy4KPj4+ IEluIHRoZSBleGFtcGxlLCB0aGUgTFBERFIyIERSQU0gZnJlcXVlbmN5IGNoYW5nZXMgYmV0d2Vl biAxMzMsIDI2NiwgYW5kIDQwME1Iego+Pj4gYW5kIG90aGVyIHJlbGF0ZWQgY2xvY2tzIHNpbXBs eSBmb2xsb3cgdGhlIGRldGVybWluZWQgRERSIFJBTSBjbG9jay4KPj4+Cj4+PiBUaGUgREVWRlJF USBkcml2ZXIgZm9yIEV4eW5vczQyMTAgbWVtb3J5IGJ1cyBpcyBhdAo+Pj4gL2FyY2gvYXJtL21h Y2gtZXh5bm9zNC9kZXZmcmVxX2J1cy5jIGluIHRoZSBnaXQgdHJlZS4KPj4+Cj4+PiBNeXVuZ0pv byBIYW0gKDMpOgo+Pj4gwqAgUE06IEludHJvZHVjZSBERVZGUkVROiBnZW5lcmljIERWRlMgZnJh bWV3b3JrIHdpdGggZGV2aWNlLXNwZWNpZmljCj4+PiDCoCDCoCBPUFBzCj4+PiDCoCBQTSAvIERF VkZSRVE6IGFkZCBleGFtcGxlIGdvdmVybm9ycwo+Pj4gwqAgUE0gLyBERVZGUkVROiBhZGQgc3lz ZnMgaW50ZXJmYWNlIChpbmNsdWRpbmcgdXNlciB0aWNrbGluZykKPj4KPj4gT0ssIEknbSBnb2lu ZyB0byB0YWtlIHRoZSBwYXRjaGVzIGZvciAzLjIuCj4KPiBTb3JyeSBmb3IgYmVpbmcgbGF0ZSB0 byB0aGUgZGlzY3Vzc2lvbiwgYnV0IHBlcnNvbmFsbHkgSSBkb24ndCB0aGluawo+IHRoaXMgc2hv dWxkIGJlIG1lcmdlZCBmb3IgdjMuMi4KPgo+IEZpcnN0LCBJIHRoaW5rIHRoZSBnb3Zlcm5vciBw YXJ0IG9mIHRoaXMgc2VyaWVzIGlzIGJhc2ljYWxseSBmaW5lLCBhbmQKPiBjYW4gc2VlIHNvbWUg Y2FzZXMgd2hlcmUgaXQgd291bGQgYmUgdXNlZnVsLCBidXQgYXMgTWlrZSBoYXMgcG9pbnRlZAo+ IG91dCwgdGhlcmUgaXMgc3RpbGwgYSBtYWpvcml0eSBvZiBkZXZpY2VzIGZvciB3aGljaCBhIGdv dmVybm9yIGxpa2UgdGhpcwo+IHdvdWxkIGJlIG92ZXJraWxsLgo+Cj4gTXkgbWFpbiBwcm9ibGVt IGlzIHdpdGggdGhlIFFvUyBhc3BlY3RzLiDCoFRoZXJlIGlzIHNpZ25pZmljYW50IG92ZXJsYXAK PiBiZXR3ZWVuIHRoaXMgYXBwcm9hY2ggYW5kIHRoZSBwZXItZGV2aWNlIFBNIFFvUyBhcHByb2Fj aCBjdXJyZW50bHkgYmVpbmcKPiBwcm9wb3NlZCBieSBKZWFuIFBpaGV0LCBhbmQgSSB0aGluayBh bnkgc29ydCBvZiBwZXItZGV2aWNlIERWRlMgc2hvdWxkCj4gYmUgYnVpbHQgb24gdG9wIG9mIGEg bW9yZSBnZW5lcmljIHBlci1kZXZpY2UgUW9TIGxheWVyIChzdWNoIGFzIEplYW4ncy4pCgpUaGVu LCB3aGF0IGFib3V0IGFkZGluZyBhIGdvdmVybm9yPyBCZXNpZGVzLCBERVZGUkVRIGlzIGRlc2ln bmVkIHRvCmFsbG93IGVhY2ggZGV2aWNlIHRvIGNyZWF0ZSBpdHMgb3duIGdvdmVybm9ycy4gVGhl IGdvdmVybm9ycyBpbiB0aGUKZGV2ZnJlcS5jIGFyZSBtZWFudCB0byBiZSB1c2VkIGNvbW1vbmx5 IGJ5ICJtYW55IiBkZXZpY2VzLgoKRm9yIFBNIFFvUywgd2UgbWF5IGhhdmUgc2V2ZXJhbCBhcHBy b2FjaGVzOgoxLiBBZGRpbmcgYSBnb3Zlcm5vciBhd2FyZSBvZiBQTSBRb1MgdGFraW5nIFBNIFFv UyBwYXJhbWV0ZXJzLgoyLiBNb2RpZnlpbmcgT1BQIHRvIGJlIGF3YXJlIG9mIFBNIFFvUyBzbyB0 aGF0IG9ubHkgT1BQcyBtZWV0aW5nIHRoZQpyZXF1aXJlbWVudCBhcmUgZW5hYmxlZCBpZiB0aGUg UE0gUW9TIHJlcXVpcmVtZW50IHNwZWNpZmllcyBmcmVxdWVuY3kKb3Igdm9sdGFnZSBjb25kaXRp b25zIGV4cGxpY2l0bHkuCjMuIE1vZGlmeWluZyBERVZGUkVRIHRvIGJlIGF3YXJlIG9mIFBNIFFv UyBhbmQgbGV0IERFVkZSRVEgaWdub3JlCmZyZXF1ZW5jaWVzIHRoYXQgZG8gbm90IHNhdGlzZnkg dGhlIFBNIFFvUyByZXF1aXJlbWVudC4gQXMgaW4gYXBwcm9hY2gKMiwgdGhlIHJlcXVpcmVtZW50 IGFsc28gbmVlZHMgdG8gYmUgZXhwbGljaXQgYWJvdXQgZnJlcXVlbmN5IC8gdm9sdGFnZQpjb25k aXRpb25zIG9yIHdlIG5lZWQgdG8gaW50ZXJwcmV0IGRldmZyZXFfZGV2X3N0YXR1cyByZXN1bHQg aW4gdGVybXMKb2YgUE0gUW9TLgoKPgo+IFRoaXMgc2VyaWVzIGN1cnJlbnRseSBwcm92aWRlcyBh ICp2ZXJ5KiBiYXNpYyBRb1MgbWVjaGFuaXNtIChlLmcuIGZpeGVkCj4gZHVyYXRpb24gZnJlcXVl bmN5IGNvbnN0cmFpbnQpIGluIHRoZSBmb3JtIG9mICJ0aWNrbGUiLCB3aGljaCBCVFcgSSBzZWVt Cj4gdG8gaGF2aW5nIGEgaGFyZCB0aW1lIHVuZGVyc3RhbmRpbmcgKG1vcmUgb24gdGhhdCBiZWxv dy4uLikKPgo+IE1vcmUgaW1wb3J0YW50bHkgdGhvdWdoLCB0aGlzIHNlcmllcyBhbHNvIGludHJv ZHVjZXMgYSBzeXNmcyBsYXllciBmb3IKPiBkb2luZyBpdHMgUW9TLWxpa2Ugc3R1ZmYsIHNvIGFk ZGluZyB0aGlzIGFuZCB0aGVuIGFkZGluZyBhIG1vcmUgZ2VuZXJpYwo+IHBlci1kZXZpY2UgUW9T IGlzIGFza2luZyBmb3IgY29uZnVzaW9uIGFib3V0IGhvdyB1c2Vyc3BhY2UgaXMgdG8gZG8gUW9T Lgo+IEFuZCBhZGRpbmcgYSBzeXNmcyBpbnRlcmZhY2UgbWF5IGJlIHR1cm4gb3V0IHRvIGJlIGRp ZmZpY3VsdCB0byByZW1vdmUuCj4KPiBCYXNpY2FsbHksIHdpdGhvdXQgYSBtb3JlIGdlbmVyYWwg Y29uc3RyYWludHMgbWVjaGFuaXNtIGluIHBsYWNlLCBJCj4gZG9uJ3Qgc2VlIGhvdyB0aGlzIGNh biBiZSBnZW5lcmFsbHkgdXNlZnVsIHNpbmNlIHRoZXJlIGFyZSB0b28gbWFueQo+IGFzc3VtcHRp b25zIG1hZGUgd2l0aCB0aGUgY3VycmVudCAidGlja2xlIiBhcHByb2FjaCwgYW5kIGFzIE1pa2Ug aGFzCj4gcG9pbnRlZCBvdXQsIGl0IGNhbm5vdCBjbGVhbmx5IGhhbmRsZSBjYXNlcyB3aGVyZSB0 aGVyZSBtaWdodCBiZQo+IG11bHRpcGxlIERWRlMtcmVsYXRlZCBjb25zdHJhaW50cyBvbiBhIGdp dmVuIGRldmljZS4KPgo+IE9LLCBiYWNrIHRvICJ0aWNrbGUiLi4uIMKgSSBoYXZlbid0IHlldCBm dWxseSB1bmRlcnN0b29kIGhvdyB0aGF0Cj4gaW50ZXJmYWNlIGlzIGludGVuZGVkIHRvIGJlIHVz ZWQsIG9yIHdobyB0aGUgcG90ZW50aWFsIHVzZXJzIG1pZ2h0IGJlCj4gYW5kIGl0IGlzIG5vdCBk b2N1bWVudGVkIGluIHRoZSBjb2RlIG9yIGNoYW5nZWxvZy4gwqBJIGFsc28gZGlkbid0IHNlZQo+ IGFueSB1c2VycyBvZiB0aGF0IEFQSSAoZXhjZXB0IHRoZSBzeXNmcyBjb2RlLikKPgo+IElJVUMs IHRpY2tsZSBpcyBqdXN0IGJhc2ljYWxseSBhIHdheSB0byBzZXQgYSBmcmVxdWVuY3kgY29uc3Ry YWludCBvbiBhCj4gZGV2aWNlIGZvciBhIGZpeGVkIGR1cmF0aW9uLiDCoEhvd2V2ZXIsIGlmIHRp Y2tsZSBoYXMgYmVlbiByZXF1ZXN0ZWQsIGFueQo+IE9QUCBjaGFuZ2Ugd2lsbCBhbHNvIGZvcmNl IGEgY2hhbmdlIHRvIHRoZSBoaWdoZXN0IHBlcmZvcm1hbmNlIE9QUAo+IHRlbXBvcmFyaWx5IGJl Zm9yZSBjaGFuZ2luZyB0byB0aGUgdGFyZ2V0IE9QUC4KPgo+IE1heWJlIEknbSBub3QgdW5kZXJz dGFuZGluZyB0aGUgdXNhZ2Ugb2YgaXQgZnVsbHksIGJ1dCB0aGF0IHNlZW1zIGxpa2UKPiBoYXJk LWNvZGluZyBwb2xpY3kgaW50byB0aGUgZnJhbWV3b3JrIHRoYXQgbWlnaHQgbm90IGJlIGFwcHJv cHJpYXRlLgo+IEZvciBleGFtcGxlLCB3aGF0IGlmIHRoZXJlIGFyZSBvdGhlciBkZXZpY2VzIHdp dGggY29uc3RyYWludHMgc3VjaCB0aGF0Cj4gdGhleSBjYW5ub3QgY3VycmVudGx5IHNjYWxlIGZy ZXF1ZW5jeS92b2x0YWdlPwo+Cj4gTWFieWUgTXl1bmdKb28gY2FuIGV4cGxhaW4gaW4gbW9yZSBk ZXRhaWwgdGhlIHVzZWNhc2VzIGZvciB0aWNrbGU/CgpUaWNrbGUgaXMgbm90IGZvciBRb1MgYmV0 d2VlbiBkZXZpY2VzLiBJdCBpcyBmb3IgZmFzdGVyIHJlYWN0aW9uIHRvCihodW1hbikgdXNlciBp bnB1dHMgYXQgRFZGUyBzaWRlIHdoZXJlIHdhaXRpbmcgZm9yIERWRlMncyByZWFjdGlvbgp0YWtl cyB0b28gbXVjaCB0aW1lIGFuZCByZWR1Y2luZyBwb2xsaW5nIGludGVydmFsIGNvc3RzIHRvbyBt dWNoLiBJbgpmYWN0LCB0aGlzIHRpY2tsaW5nIG1ldGhvZCB3YXMgcXVpdGUgZWZmZWN0aXZlIHdp dGggQ1BVRlJFUSdzIG9uZGVtYW5kCmdvdmVybm9yIChub3QgdXBzdHJlYW1lZCkuIFdlIG1heSB0 dW5lIERWRlMgY29uc3RhbnRzIHRvIGxldCBpdCByZWFjdApmYXN0ZXIgd2l0aCBsb3dlciB0aHJl c2hvbGQ7IGhvd2V2ZXIsIHRoaXMgcmVzdWx0cyBpbiBoaWdoZXIgcG93ZXIKY29uc3VtcHRpb24g d2l0aCBzbWFsbCBsb2FkLgoKCkhlcmUgZ29lcyBtb3JlIGRldGFpbGVkIGRlc2NyaXB0aW9uIGFi b3V0IHRoZSBpc3N1ZSBpbnRlbmRlZCB0byBiZQp0YWNrbGVkIGJ5IHRpY2tsaW5nLCB0aGUgcmVz cG9uc2UgdGltZSBvZiBHVUkuIFdpdGggRFZGUyAoQ1BVRlJFUSksIHdlCmhhdmUgYmVlbiBzdWZm ZXJpbmcgZnJvbSBzbG93ZXIgdXNlciByZXNwb25zZSB0aW1lIChlLmcuLCBkcmFnZ2luZwp0b3Vj aCBzY3JlZW4gb2YgbW9iaWxlIGRldmljZXMgYXQgImFwcGxpY2F0aW9uIGRyYXdlciIgb3IgIndl Ygpicm93c2VycyIpLiBMZXQncyBhc3N1bWUgYSBzeXN0ZW0gd2l0aCBhIENQVSB0aGF0IHJ1bnMg YXQgdGhlIHJhbmdlIG9mCjEwME1IeiB+IDJHSHogYW5kIGEgR1VJIHRoYXQgcmVxdWlyZXMgYXQg bGVhc3QxLjVHSHogZm9yIHNtb290aAp0cmFuc2l0aW9ucy4gSWYgd2UgYXJlIGdvaW5nIHRvIHVz ZSA2MEh6IGJhc2VkIGRpc3BsYXkgYW5kIDIwbXMKQ1BVRlJFUSBwb2xsaW5nIGludGVydmFsLCBh IHN1ZGRlbiB1c2VyIGlucHV0IHJlcXVpcmVzIDMwbXMgb2YgZGVsYXkKaW4gYXZlcmFnZSB0byBn ZXQgQ1BVIHRvIHdvcmsgYXQgaGlnaCBzcGVlZCwgd2hpY2ggbG9zZXMgMiBmcmFtZXMKKG9mdGVu LCBpdCB0YWtlcyBtb3JlIHRpbWUvZnJhbWVzIGZvciBDUFVGUkVRIHRvIHJlYWN0OyBJIGRvbid0 IGtub3cKd2h5KS4gSWYgYSB1c2VyIHJlcGVhdGVkbHkgZHJhZ3MgYW5kIHN0b3BzIHRoZSB0b3Vj aCBzY3JlZW4sIHN1Y2gKZGVsYXkgYW5kIGxvc3QgZnJhbWVzIGJlY29tZSB2ZXJ5IG5vdGljZWFi bGUgYW5kIHRoZSBzY3JlZW4gZm9sbG93cwp1c2VyJ3MgZmluZ2VyIHJldGFyZGVkLiBXaXRoIENQ VUZSRVEtb25kZW1hbmQsIHRpY2tsaW5nIGhhcyBiZWVuIG1hZGUKc3VjaCB0ZXN0IHRvIGhhdmUg YWxtb3N0IHNhbWUgcmVzdWx0IHdpdGggdGhhdCBvZiAicGVyZm9ybWFuY2UiCmdvdmVybm9yLgoK CkZvciB0aGUgc3lzZnMgaW50ZXJmYWNlLi4uIHdlIGFjdHVhbGx5IGRvIG5vdCBuZWVkIHN5c2Zz IGludGVyZmFjZSBmb3IKdGlja2xpbmcgaWYgd2UgYXJlIGdvaW5nIHRvIGFsbG93IHRpY2tsZSBm dW5jdGlvbiB0byB0aGUgaW50ZXJydXB0CmhhbmRsZXIgb2YgSENJIGRldmljZXMgKHRvdWNoIHNj cmVlbiwga2V5Ym9hcmRzLCBtaWNlLCAuLi4pLiBIb3dldmVyLAppdCBzZWVtcyB0aGF0IG1hbnkg cGVvcGxlIGRvbid0IGxpa2UgdGhhdCBpZGVhOyB0aHVzLCBJIHRob3VnaHQgSSBuZWVkCnRvIGFs bG93IHVzZXJzcGFjZSB1c2VyLWlucHV0IGhhbmRsZXJzIHRvIHRpY2tsZS4KCj4KPiBUaGFua3Ms Cj4KPiBLZXZpbgo+IF9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fCj4gbGludXgtcG0gbWFpbGluZyBsaXN0Cj4gbGludXgtcG1AbGlzdHMubGludXgtZm91bmRh dGlvbi5vcmcKPiBodHRwczovL2xpc3RzLmxpbnV4LWZvdW5kYXRpb24ub3JnL21haWxtYW4vbGlz dGluZm8vbGludXgtcG0KPgoKCgotLSAKTXl1bmdKb28gSGFtICjtlajrqoXso7wpLCBQaC5ELgpN b2JpbGUgU29mdHdhcmUgUGxhdGZvcm0gTGFiLApEaWdpdGFsIE1lZGlhIGFuZCBDb21tdW5pY2F0 aW9ucyAoRE1DKSBCdXNpbmVzcwpTYW1zdW5nIEVsZWN0cm9uaWNzCmNlbGw6IDgyLTEwLTY3MTQt Mjg1OApfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpsaW51 eC1wbSBtYWlsaW5nIGxpc3QKbGludXgtcG1AbGlzdHMubGludXgtZm91bmRhdGlvbi5vcmcKaHR0 cHM6Ly9saXN0cy5saW51eC1mb3VuZGF0aW9uLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LXBt