Re: [RFC 0/3] mmc: Add dynamic frequency scaling

2015-01-17 Thread Mike Turquette
Quoting Ulf Hansson (2015-01-15 02:04:04) > On 15 January 2015 at 10:20, Krzysztof Kozlowski > wrote: > > On czw, 2015-01-15 at 09:20 +0100, Ulf Hansson wrote: > >> + Mike, Stephen (Clock maintainers) > >> > >> On 12 January 2015 at 10:23, Krzysztof Kozlowski > >> wrote: > >> > Hi, > >> > > >> >

Re: [RFC 0/3] mmc: Add dynamic frequency scaling

2015-01-17 Thread Mike Turquette
Quoting Ulf Hansson (2015-01-15 02:04:04) On 15 January 2015 at 10:20, Krzysztof Kozlowski k.kozlow...@samsung.com wrote: On czw, 2015-01-15 at 09:20 +0100, Ulf Hansson wrote: + Mike, Stephen (Clock maintainers) On 12 January 2015 at 10:23, Krzysztof Kozlowski k.kozlow...@samsung.com

Re: [RFC 0/3] mmc: Add dynamic frequency scaling

2015-01-15 Thread Tomeu Vizoso
On 12 January 2015 at 10:23, Krzysztof Kozlowski wrote: > Hi, > > > I would like to hear some comments about idea of scaling MMC clock > frequency. The basic idea is to lower the clock when device is > completely idle or not busy enough. > > The patchset adds MMC card as a devfreq device and uses

Re: [RFC 0/3] mmc: Add dynamic frequency scaling

2015-01-15 Thread Ulf Hansson
On 15 January 2015 at 10:20, Krzysztof Kozlowski wrote: > On czw, 2015-01-15 at 09:20 +0100, Ulf Hansson wrote: >> + Mike, Stephen (Clock maintainers) >> >> On 12 January 2015 at 10:23, Krzysztof Kozlowski >> wrote: >> > Hi, >> > >> > >> > I would like to hear some comments about idea of scaling

Re: [RFC 0/3] mmc: Add dynamic frequency scaling

2015-01-15 Thread Krzysztof Kozlowski
On czw, 2015-01-15 at 09:20 +0100, Ulf Hansson wrote: > + Mike, Stephen (Clock maintainers) > > On 12 January 2015 at 10:23, Krzysztof Kozlowski > wrote: > > Hi, > > > > > > I would like to hear some comments about idea of scaling MMC clock > > frequency. The basic idea is to lower the clock

Re: [RFC 0/3] mmc: Add dynamic frequency scaling

2015-01-15 Thread Ulf Hansson
+ Mike, Stephen (Clock maintainers) On 12 January 2015 at 10:23, Krzysztof Kozlowski wrote: > Hi, > > > I would like to hear some comments about idea of scaling MMC clock > frequency. The basic idea is to lower the clock when device is > completely idle or not busy enough. We already have host

Re: [RFC 0/3] mmc: Add dynamic frequency scaling

2015-01-15 Thread Tomeu Vizoso
On 12 January 2015 at 10:23, Krzysztof Kozlowski k.kozlow...@samsung.com wrote: Hi, I would like to hear some comments about idea of scaling MMC clock frequency. The basic idea is to lower the clock when device is completely idle or not busy enough. The patchset adds MMC card as a devfreq

Re: [RFC 0/3] mmc: Add dynamic frequency scaling

2015-01-15 Thread Ulf Hansson
+ Mike, Stephen (Clock maintainers) On 12 January 2015 at 10:23, Krzysztof Kozlowski k.kozlow...@samsung.com wrote: Hi, I would like to hear some comments about idea of scaling MMC clock frequency. The basic idea is to lower the clock when device is completely idle or not busy enough. We

Re: [RFC 0/3] mmc: Add dynamic frequency scaling

2015-01-15 Thread Krzysztof Kozlowski
On czw, 2015-01-15 at 09:20 +0100, Ulf Hansson wrote: + Mike, Stephen (Clock maintainers) On 12 January 2015 at 10:23, Krzysztof Kozlowski k.kozlow...@samsung.com wrote: Hi, I would like to hear some comments about idea of scaling MMC clock frequency. The basic idea is to lower the

Re: [RFC 0/3] mmc: Add dynamic frequency scaling

2015-01-15 Thread Ulf Hansson
On 15 January 2015 at 10:20, Krzysztof Kozlowski k.kozlow...@samsung.com wrote: On czw, 2015-01-15 at 09:20 +0100, Ulf Hansson wrote: + Mike, Stephen (Clock maintainers) On 12 January 2015 at 10:23, Krzysztof Kozlowski k.kozlow...@samsung.com wrote: Hi, I would like to hear some

[RFC 0/3] mmc: Add dynamic frequency scaling

2015-01-12 Thread Krzysztof Kozlowski
Hi, I would like to hear some comments about idea of scaling MMC clock frequency. The basic idea is to lower the clock when device is completely idle or not busy enough. The patchset adds MMC card as a devfreq device and uses simple_ondemand as governor. In idle this gave benefits (less energy

[RFC 0/3] mmc: Add dynamic frequency scaling

2015-01-12 Thread Krzysztof Kozlowski
Hi, I would like to hear some comments about idea of scaling MMC clock frequency. The basic idea is to lower the clock when device is completely idle or not busy enough. The patchset adds MMC card as a devfreq device and uses simple_ondemand as governor. In idle this gave benefits (less energy