Re: [PATCH v2 0/8] PM / devfreq: Add NoCP devfreq-event and support busfreq on exyno5422-odroidxu3

From: Chanwoo Choi
Date: Tue May 03 2016 - 06:48:36 EST

Hi Krzysztof,

On 2016ë 05ì 03ì 19:29, Krzysztof Kozlowski wrote:
> On Fri, Apr 15, 2016 at 03:32:47PM +0900, Chanwoo Choi wrote:
>> 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.
>> 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[1] which support the generic exynos-bus
>> frequency driver.
>> [1]
>> - [PATCH v9 00/20] PM / devferq: Add generic exynos bus frequency driver and new passive governor
>> Changse from v1:
>> (
>> - Simplify the documentation of exynos-nocp.txt
>> - Check the return value of regmap function
>> - Modify Device Tree node name using general device name
>> : nocp_memX_X@ nocp_memX_X -> nocp_memX_X@ nocp
>> - Fix wrong node name about nocp device tree node
>> - Drop the CLK_SET_RATE_PARENT flag
>> - Reorder bus device tree node alpabetically
>> - Add the tested-by tag from Anand Moon and Markus Reichl
>> - Add the reviewed-by tag to patch5/7 from Exynos SoC Maintainer
>> - Add patch2 to modify the devfreq_event_get_edev_by_phandle()
>> to get the instance of devfreq-event device by using the phandle
>> Chanwoo Choi (8):
>> PM / devfreq: event: Add new Exynos NoC probe driver
>> PM / devfreq: event: Find the instance of devfreq-event device by using phandle
>> PM / devfreq: exynos: Add the detailed correlation for Exynos5422 bus
>> ARM: dts: Add NoC Probe dt node for Exynos542x SoC
>> dt-bindings: clock: Add the clock id for ACLK clock of Exynos542x SoC
>> clk: samsung: exynos542x: Add the clock id for ACLK
>> ARM: dts: Add bus nodes using VDD_INT for Exynos542x SoC
>> ARM: dts: Add support of Bus frequency using VDD_INT for exynos5422-odroidxu3
> Applied DTS patches for late v4.7 (hopefully).

Thanks for your review and apply.

Best Regards,
Chanwoo Choi