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From: Mika Westerberg <mika.westerberg@linux.intel.com>
To: Mike Turquette <mturquette@linaro.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>
Cc: linux-kernel@vger.kernel.org, x86@kernel.org,
	Len Brown <lenb@kernel.org>, "Rafael J. Wysocki" <rjw@sisk.pl>,
	Arnd Bergmann <arnd@arndb.de>,
	Linus Walleij <linus.walleij@linaro.org>,
	Mark Brown <broonie@opensource.wolfsonmicro.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	linux-acpi@vger.kernel.org
Subject: Re: [PATCH v2 2/3] clk: x86: add support for Lynxpoint LPSS clocks
Date: Wed, 23 Jan 2013 19:40:21 +0200	[thread overview]
Message-ID: <20130123174021.GK2239@intel.com> (raw)
In-Reply-To: <20130122184754.24671.16583@quantum>

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@linux.intel.com>
> > Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
> > Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
> 
> Nice to see another architecture using this framework.
> 
> Acked-by: Mike Turquette <mturquette@linaro.org>

Thanks!

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

  reply	other threads:[~2013-01-23 17:40 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-01-18 13:45 [PATCH v2 0/3] x86: enable common clk and add support for Lynxpoint clocks Mika Westerberg
2013-01-18 13:45 ` [PATCH v2 1/3] x86: add support for Intel Low Power Subsystem Mika Westerberg
2013-01-18 13:46 ` [PATCH v2 2/3] clk: x86: add support for Lynxpoint LPSS clocks Mika Westerberg
2013-01-22 18:47   ` Mike Turquette
2013-01-22 18:47     ` Mike Turquette
2013-01-23 17:40     ` Mika Westerberg [this message]
2013-01-18 13:46 ` [PATCH v2 3/3] ACPI / platform: create LPSS clocks if Lynxpoint devices are found during scan Mika Westerberg
2013-01-19  0:17 ` [PATCH v2 0/3] x86: enable common clk and add support for Lynxpoint clocks Rafael J. Wysocki

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