Re: [PATCH V3] cpuidle/powernv: Read target_residency value of idle states from DT if available

From: Michael Ellerman
Date: Mon Feb 02 2015 - 01:39:32 EST


On Mon, 2015-02-02 at 10:40 +0530, Preeti U Murthy wrote:
> The device tree now exposes the residency values for different idle states. Read
> these values instead of calculating residency from the latency values. The values
> exposed in the DT are validated for optimal power efficiency. However to maintain
> compatibility with the older firmware code which does not expose residency
> values, use default values as a fallback mechanism. While at it, use better
> APIs to parse the powermgmt device tree node so as to avoid endianness
> transformation.
>
> Signed-off-by: Preeti U Murthy <preeti@xxxxxxxxxxxxxxxxxx>
> ---
> Changes from V2: https://lkml.org/lkml/2015/1/27/1054
> 1. Used APIs to eliminate endianness transformation

Hi Preeti,

I thought I was pretty clear when I said you should do that as a follow-up
patch.

This is now doing too many things, it's not a single logical change, and it's
touching code in arch/powerpc and the driver. Which means neither I nor Rafael
can easily merge it.

So please go back to the v2 you had. And then do the of_property_count_u32_elems()
changes as separate patches.

cheers


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/