Fwd: [PATCH v2 0/8] PM / devfreq: Add NoCP devfreq-event and support busfreq on exyno5422-odroidxu3
From: MyungJoo Ham
Date: Mon May 02 2016 - 01:49:03 EST
Sender : ììì<cw00.choi@xxxxxxxxxxx> S5(ìì)/Change Agent/Tizen Platform Lab(S/Wìí)/ìììì
Date : 2016-04-15 15:32 (GMT+09:00)
> This patchset support the AMBA bus frequency scaling on Exynos5422-based
> Odroid-XU3 board. But, this series only support the bus frequency scaling
> for INT (Internal) block using VDD_INT power line.
Along with Devfreq/Passive patchset, the patchset is merged in
devfreq for-4.7 tree.
@Chanwoo: If there are commits to be merged by a tree other than Linux/PM,
please let me know. I'll send out pull-request soon.
> Also, to support the bus frequency scaling for Exynos542x SoC,
> Exynos542x SoC has the specific 'NoC (Network on Chip) Probe' device
> to measure the transfered data traffic on NoC (Network on Chip)
> instead of PPMU (Platform Performance Monitoring Unit). NoC Probe device
> provide the utilization for INT block of Exynos542x SoC.
> The generic exynos-bus frequency driver uses the 'NoC Probe' devfreq-event
> device (drivers/devfreq/event/exynos-nocp.c) without any modification.
> Just add the phandle of 'NoC Probe' dt node to bus dt node.
> Depend on:
> This patchset depends on patch which support the generic exynos-bus
> frequency driver.
>  http://www.spinics.net/lists/arm-kernel/msg495976.html
> - [PATCH v9 00/20] PM / devferq: Add generic exynos bus frequency driver and new passive governor