Re: [RFC PATCH 01/15] PM / devfreq: exynos: Add generic exynos bus frequency driver

From: MyungJoo Ham
Date: Thu Nov 26 2015 - 09:00:52 EST


On Thu, Nov 26, 2015 at 10:47 PM, Chanwoo Choi <cw00.choi@xxxxxxxxxxx> wrote:
> This patch adds the generic exynos bus frequency driver for AMBA AXI bus
> of sub-blocks in exynos SoC with DEVFREQ framework. The Samsung Exynos SoC
> have the common architecture for bus between DRAM and sub-blocks in SoC.
> This driver can support the generic bus frequency driver for Exynos SoCs.
>
> In devicetree, Each bus block has a bus clock, regulator, operation-point
> and devfreq-event devices which measure the utilization of each bus block.
>
> Signed-off-by: Chanwoo Choi <cw00.choi@xxxxxxxxxxx>
> ---
> drivers/devfreq/Kconfig | 15 ++
> drivers/devfreq/Makefile | 1 +
> drivers/devfreq/exynos/Makefile | 1 +
> drivers/devfreq/exynos/exynos-bus.c | 443 ++++++++++++++++++++++++++++++++++++
> 4 files changed, 460 insertions(+)
> create mode 100644 drivers/devfreq/exynos/exynos-bus.c
>

Are we finally getting a common Exynos bus driver with full DT support?
(can this replace both Exynos4/5 drivers and support Exynos7 series?)


Cheers,
MyungJoo
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