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From: Heiko Stuebner <heiko-4mtYJXux2i+zQB+pC5nmwQ@public.gmane.org>
To: Caesar Wang <wxt-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
Cc: dianders-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org,
	linux-rockchip-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
	devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	huangtao-TNX95d0MmH7DzftRWevZcw@public.gmane.org,
	eddie.cai-TNX95d0MmH7DzftRWevZcw@public.gmane.org,
	Elaine Zhang <zhangqing-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
Subject: Re: [PATCH v3] arm64: dts: rockchip: add the power domain node for rk3399
Date: Wed, 06 Jul 2016 22:56:34 +0200	[thread overview]
Message-ID: <4362000.pLfftZqEvu@phil> (raw)
In-Reply-To: <1467635644-16798-1-git-send-email-wxt-TNX95d0MmH7DzftRWevZcw@public.gmane.org>

Am Montag, 4. Juli 2016, 20:34:04 schrieb Caesar Wang:
> From: Elaine Zhang <zhangqing-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
> 
> In order to meet low power requirements, a power management unit (PMU) is
> designed for controlling power resources in RK3399. The RK3399 PMU is
> dedicated for managing the power of the whole chip.
> 
> 1. add pd node for RK3399 Soc
> 2. create power domain tree
> 3. add qos node for domain
> 
> From the DT/binds and driver can get more detail information:
> The driver:
>         drivers/soc/rockchip/pm_domains.c
> The document:
>         Documentation/devicetree/bindings/soc/rockchip/power_domain.txt
> 
> Note:
> As the TRM lists many voltage domains and power domains, then this patch
> adds some domains for driver. Due to some domains
> (e.g. emmc, usb, core)...We can't turned off it on
> bootup, or says some device driver can't handle the power domain enough.
> Maybe We will add more other domains in the future or later.
> 
> Signed-off-by: Elaine Zhang <zhangqing-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
> Signed-off-by: Caesar Wang <wxt-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
> Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
> Cc: linux-rockchip-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
> Cc: Heiko Stuebner <heiko-4mtYJXux2i+zQB+pC5nmwQ@public.gmane.org>

applied to my dts64 branch after renaming the qos nodes, removing the status
property and moving the rga domain up a bit. Please double check:
https://git.kernel.org/cgit/linux/kernel/git/mmind/linux-rockchip.git/commit/?id=6d3cdbf1c219f9817290903e9d1e8de7462a7b54

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  parent reply	other threads:[~2016-07-06 20:56 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-04 12:34 [PATCH v3] arm64: dts: rockchip: add the power domain node for rk3399 Caesar Wang
     [not found] ` <1467635644-16798-1-git-send-email-wxt-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
2016-07-05  0:24   ` Heiko Stuebner
2016-07-05  0:44     ` Caesar Wang
2016-07-06 19:47     ` Doug Anderson
2016-07-06 20:20   ` Doug Anderson
2016-07-06 20:56   ` Heiko Stuebner [this message]
2016-07-06 21:04     ` Doug Anderson

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