From: Stephen Boyd <sboyd@codeaurora.org>
To: Linus Walleij <linus.walleij@linaro.org>
Cc: Michael Turquette <mturquette@baylibre.com>,
linux-clk@vger.kernel.org, Russell King <linux@armlinux.org.uk>
Subject: Re: [PATCH 2/3 v2] clk: versatile/icst: add Integrator core module clocks
Date: Thu, 25 Aug 2016 13:07:44 -0700 [thread overview]
Message-ID: <20160825200744.GS19826@codeaurora.org> (raw)
In-Reply-To: <1471857574-13125-2-git-send-email-linus.walleij@linaro.org>
On 08/22, Linus Walleij wrote:
> The Integrator/AP and Integrator/CP have special derivatives
> of the ICST525 control registers, where some bits have been
> hardwired but others are possible to adjust, resulting in a
> control register that makes it possible to set an even,
> desired megahertz value.
>
> The Integrator/AP and Integrator/CP have slightly different
> layout so we support them using different compatible
> strings.
>
> After adding these clocks, the Integrator-specific cpufreq
> driver can be switched over to use the generic operating
> point device tree cpufreq driver.
>
> Instead of simply writing a value to the oscillator control
> register we switch to the more elaborate method of providing
> a bitmask and use regmap_update_bits() to poke the right bits
> for the desired frequency, this is needed since these control
> registers sometimes control more than one clock.
>
> Cc: Russell King <linux@armlinux.org.uk>
> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
> ---
Applied to clk-next
--
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project
next prev parent reply other threads:[~2016-08-25 20:07 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-22 9:19 [PATCH 1/3 v2] clk: versatile add DT bindings for the ICST CM variants Linus Walleij
2016-08-22 9:19 ` [PATCH 2/3 v2] clk: versatile/icst: add Integrator core module clocks Linus Walleij
2016-08-25 20:07 ` Stephen Boyd [this message]
2016-08-22 9:19 ` [PATCH 3/3 v2] clk: versatile/icst: support for AP baseboard clocks Linus Walleij
2016-08-25 20:06 ` Stephen Boyd
2016-08-27 12:02 ` Linus Walleij
2016-08-23 18:09 ` [PATCH 1/3 v2] clk: versatile add DT bindings for the ICST CM variants Rob Herring
2016-08-23 18:09 ` Rob Herring
2016-08-25 20:06 ` Stephen Boyd
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