linux-kernel - Re: [RESEND PATCH v16 3/4] soc: rockchip: power-domain: Add power domain driver

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Date:	Tue, 25 Aug 2015 13:57:16 -0700
From:	Kevin Hilman <khilman@...nel.org>
To:	Caesar Wang <wxt@...k-chips.com>
Cc:	heiko@...ech.de, ulf.hansson@...aro.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org, dianders@...omium.org,
	tomasz.figa@...il.com, dmitry.torokhov@...il.com,
	linux-kernel@...r.kernel.org, galak@...eaurora.org,
	linux@....linux.org.uk, robh+dt@...nel.org, arnd@...db.de,
	linus.walleij@...aro.org, ijc+devicetree@...lion.org.uk,
	devicetree@...r.kernel.org,
	"jinkun.hong" <jinkun.hong@...k-chips.com>
Subject: Re: [RESEND PATCH v16 3/4] soc: rockchip: power-domain: Add power domain driver

Caesar Wang <wxt@...k-chips.com> writes:

> This driver is found on RK3288 SoCs.
>
> In order to meet high performance and low power requirements, a power
> management unit is designed or saving power when RK3288 in low power
> mode.
> The RK3288 PMU is dedicated for managing the power of the whole chip.
>
> PMU can work in the Low Power Mode by setting bit[0] of PMU_PWRMODE_CON
> register. After setting the register, PMU would enter the Low Power mode.
> In the low power mode, pmu will auto power on/off the specified power
> domain, send idle req to specified power domain, shut down/up pll and
> so on. All of above are configurable by setting corresponding registers.
>
> Signed-off-by: jinkun.hong <jinkun.hong@...k-chips.com>
> Signed-off-by: Caesar Wang <wxt@...k-chips.com>

[...]

> diff --git a/drivers/soc/rockchip/Kconfig b/drivers/soc/rockchip/Kconfig
> new file mode 100644
> index 0000000..87a09c3
> --- /dev/null
> +++ b/drivers/soc/rockchip/Kconfig
> @@ -0,0 +1,13 @@
> +#
> +# Rockchip Soc drivers
> +#
> +config PM_GENERIC_DOMAINS

Why are you (re)defining this config option?  This name is already used in kernel/pm/Kconfig.

Kevin
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