Re: [RFC 1/1] clk: Add notifier support in clk_prepare_enable/clk_disable_unprepare

2013-03-14 Thread Bill Huang
On Fri, 2013-03-15 at 13:22 +0800, Stephen Warren wrote: > On 03/14/2013 07:20 PM, Bill Huang wrote: > > On Fri, 2013-03-15 at 01:54 +0800, Stephen Warren wrote: > >> On 03/14/2013 03:28 AM, Bill Huang wrote: > >>> On Thu, 2013-03-14 at 17:21 +0800, Peter De Schrijver wrote: > On Thu, Mar 14,

Re: [RFC 1/1] clk: Add notifier support in clk_prepare_enable/clk_disable_unprepare

2013-03-14 Thread Stephen Warren
On 03/14/2013 07:20 PM, Bill Huang wrote: > On Fri, 2013-03-15 at 01:54 +0800, Stephen Warren wrote: >> On 03/14/2013 03:28 AM, Bill Huang wrote: >>> On Thu, 2013-03-14 at 17:21 +0800, Peter De Schrijver wrote: On Thu, Mar 14, 2013 at 03:15:11AM +0100, Bill Huang wrote: > I don't thin

Re: [BUG] v7_coherent_kern_range broken on big.LITTLE

2013-03-14 Thread Leo Yan
Thx a lot, Lorenzo. It's much clear for me. :-) On 03/11/2013 10:56 PM, Lorenzo Pieralisi wrote: I'm curious if A15 use the MVA to invalidate icache, then will the DVM contain the info of MVA and the range size? If it's ONLY include the MVA, then A7 how to know it need invalidate 64 bytes' ran

Re: [RFC 1/1] clk: Add notifier support in clk_prepare_enable/clk_disable_unprepare

2013-03-14 Thread Bill Huang
On Fri, 2013-03-15 at 01:54 +0800, Stephen Warren wrote: > On 03/14/2013 03:28 AM, Bill Huang wrote: > > On Thu, 2013-03-14 at 17:21 +0800, Peter De Schrijver wrote: > >> On Thu, Mar 14, 2013 at 03:15:11AM +0100, Bill Huang wrote: > >> > >>> I don't think deferring will work either, considering the

Google Summer of Code - interested?

2013-03-14 Thread Steve McIntyre
Hi folks, As a follow-up to my work in LEG on assembly scanning and optimisation for AArch64, we're considering applying as a mentoring organisation for the Google Summer of Code [1] this year. There's quite a lot of code out there that may benefit from porting (whether for support of AArch64 or f

Re: [RFC 1/1] clk: Add notifier support in clk_prepare_enable/clk_disable_unprepare

2013-03-14 Thread Stephen Warren
On 03/14/2013 03:28 AM, Bill Huang wrote: > On Thu, 2013-03-14 at 17:21 +0800, Peter De Schrijver wrote: >> On Thu, Mar 14, 2013 at 03:15:11AM +0100, Bill Huang wrote: >> >>> I don't think deferring will work either, considering the usage of DVFS, >>> device voltage is tightly coupled with frequenc

Linaro Release 13.02 Postmortem Summary

2013-03-14 Thread David Zinman
Postmortem and lessons learned for Linaro's release 2013.02 https://wiki.linaro.org/Cycles/1302/Release/Review Highlights and Key Successes http://www.linaro.org/downloads/1302 http://wiki.linaro.org/Cycles/1302/Release#Release_Information The Linaro Engineering Gro

[RFC v3 1/1] clk: Add notifier support in clk_prepare/clk_unprepare

2013-03-14 Thread Bill Huang
Add the below two notifier events so drivers which are interested in knowing the clock status can act accordingly. This is extremely useful in some of the DVFS (Dynamic Voltage Frequency Scaling) design. CLK_PREPARED CLK_UNPREPARED Signed-off-by: Bill Huang --- drivers/clk/clk.c | 75 ++

Re: [RFC v2 1/1] clk: Add notifier support in clk_prepare/clk_unprepare

2013-03-14 Thread Bill Huang
On Thu, 2013-03-14 at 17:31 +0800, Bill Huang wrote: > Add the below two notifier events so drivers which are interested in > knowing the clock status can act accordingly. This is extremely useful > in some of the DVFS (Dynamic Voltage Frequency Scaling) design. > > CLK_PREPARED > CLK_UNPREPARED >

[RFC v2 1/1] clk: Add notifier support in clk_prepare/clk_unprepare

2013-03-14 Thread Bill Huang
Add the below two notifier events so drivers which are interested in knowing the clock status can act accordingly. This is extremely useful in some of the DVFS (Dynamic Voltage Frequency Scaling) design. CLK_PREPARED CLK_UNPREPARED Signed-off-by: Bill Huang --- drivers/clk/clk.c |3 +++ i

Re: [RFC 1/1] clk: Add notifier support in clk_prepare_enable/clk_disable_unprepare

2013-03-14 Thread Bill Huang
On Thu, 2013-03-14 at 17:21 +0800, Peter De Schrijver wrote: > On Thu, Mar 14, 2013 at 03:15:11AM +0100, Bill Huang wrote: > > > I don't think deferring will work either, considering the usage of DVFS, > > device voltage is tightly coupled with frequency, when clock rate is > > about to increase,

Re: [RFC 1/1] clk: Add notifier support in clk_prepare_enable/clk_disable_unprepare

2013-03-14 Thread Peter De Schrijver
On Thu, Mar 14, 2013 at 03:15:11AM +0100, Bill Huang wrote: > I don't think deferring will work either, considering the usage of DVFS, > device voltage is tightly coupled with frequency, when clock rate is > about to increase, we have to boost voltage first and we can lower the > voltage after the