Re: [RESEND PATCH] ARM: dts: make arch-timer always on in rk3288 soc

2014-08-29 Thread Huang Tao
Hi, 在 2014年08月29日 19:22, Mark Rutland 写道: >> 在 2014年08月28日 23:11, Mark Rutland 写道: >>> To clarify: if there are low power states that the CPU can enter where >>> we lose state, then this patch isn't correct. >> Right now, the software of RK3288 SoC only support CPU hotplug >> (cpu_on/off) and powe

Re: [RESEND PATCH] ARM: dts: make arch-timer always on in rk3288 soc

2014-08-29 Thread Mark Rutland
On Fri, Aug 29, 2014 at 04:06:40AM +0100, Huang Tao wrote: > Hi, Mark: Hi, > 在 2014年08月28日 23:11, Mark Rutland 写道: > > To clarify: if there are low power states that the CPU can enter where > > we lose state, then this patch isn't correct. > Right now, the software of RK3288 SoC only support CPU

Re: [RESEND PATCH] ARM: dts: make arch-timer always on in rk3288 soc

2014-08-28 Thread Huang Tao
Hi, Mark: 在 2014年08月28日 23:11, Mark Rutland 写道: > To clarify: if there are low power states that the CPU can enter where > we lose state, then this patch isn't correct. Right now, the software of RK3288 SoC only support CPU hotplug (cpu_on/off) and power off all CPUs on suspend. We do not implemen

Re: [RESEND PATCH] ARM: dts: make arch-timer always on in rk3288 soc

2014-08-28 Thread Kever Yang
Mark, Thanks for your reply and advice. On 08/28/2014 11:11 PM, Mark Rutland wrote: On Thu, Aug 28, 2014 at 10:17:58AM +0100, Mark Rutland wrote: Hi Kever, On Thu, Aug 28, 2014 at 02:40:17AM +0100, Kever Yang wrote: We need use the hrtimer, which need the arch-timer to be 'always-on' I

Re: [RESEND PATCH] ARM: dts: make arch-timer always on in rk3288 soc

2014-08-28 Thread Mark Rutland
On Thu, Aug 28, 2014 at 10:17:58AM +0100, Mark Rutland wrote: > Hi Kever, > > On Thu, Aug 28, 2014 at 02:40:17AM +0100, Kever Yang wrote: > > We need use the hrtimer, which need the arch-timer to be 'always-on' > > I asked a question on the last posting [1]. Can you please confirm > either way? >

Re: [RESEND PATCH] ARM: dts: make arch-timer always on in rk3288 soc

2014-08-28 Thread Mark Rutland
Hi Kever, On Thu, Aug 28, 2014 at 02:40:17AM +0100, Kever Yang wrote: > We need use the hrtimer, which need the arch-timer to be 'always-on' I asked a question on the last posting [1]. Can you please confirm either way? Thanks, Mark. [1] lists.infradead.org/pipermail/linux-arm-kernel/2014-Augus