linux-kernel - Re: [PATCH v2 2/3] clk: x86: add support for Lynxpoint LPSS clocks

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Date:	Wed, 23 Jan 2013 19:40:21 +0200
From:	Mika Westerberg <mika.westerberg@...ux.intel.com>
To:	Mike Turquette <mturquette@...aro.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>
Cc:	linux-kernel@...r.kernel.org, x86@...nel.org,
	Len Brown <lenb@...nel.org>, "Rafael J. Wysocki" <rjw@...k.pl>,
	Arnd Bergmann <arnd@...db.de>,
	Linus Walleij <linus.walleij@...aro.org>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
	linux-acpi@...r.kernel.org
Subject: Re: [PATCH v2 2/3] clk: x86: add support for Lynxpoint LPSS clocks

On Tue, Jan 22, 2013 at 10:47:54AM -0800, Mike Turquette wrote:
> Quoting Mika Westerberg (2013-01-18 05:46:00)
> > Intel Lynxpoint Low Power Subsystem hosts peripherals like UART, I2C and
> > SPI controllers. For most of these there is a configuration register that
> > allows software to enable and disable the functional clock. Disabling the
> > clock while the peripheral is not used saves power.
> > 
> > In order to take advantage of this we add a new clock gate of type
> > lpss_gate that just re-uses the ordinary clk_gate but in addition is able
> > to enumerate the base address register of the device using ACPI.
> > 
> > We then create a clock tree that models the Lynxpoint LPSS clocks using
> > these gates and fixed clocks so that we can pass clock rate to the drivers
> > as well.
> > 
> > Signed-off-by: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
> > Signed-off-by: Mika Westerberg <mika.westerberg@...ux.intel.com>
> > Reviewed-by: Mark Brown <broonie@...nsource.wolfsonmicro.com>
> 
> Nice to see another architecture using this framework.
> 
> Acked-by: Mike Turquette <mturquette@...aro.org>

Thanks!

How about x86 maintainers? Do you have any comments on the series?
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