From: Leela Krishna Amudala <l.krishna@samsung.com>
To: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Leela Krishna Amudala <l.krishna@samsung.com>,
linux-samsung-soc <linux-samsung-soc@vger.kernel.org>,
Kukjin Kim <kgene.kim@samsung.com>,
Wim Van Sebroeck <wim@iguana.be>,
Tomasz Figa <t.figa@samsung.com>,
devicetree@vger.kernel.org, Doug Anderson <dianders@chromium.org>,
linux-watchdog@vger.kernel.org, cpgs@samsung.com
Subject: Re: [PATCH V4 1/3] ARM: dts: Add pmu sysreg node to Exynos5 dtsi file
Date: Wed, 30 Oct 2013 15:39:09 +0530 [thread overview]
Message-ID: <CAL1wa8dwa3roUwC-KUy2N4fdFEj3tY9V4m_9O+vQWq4T59zxcA@mail.gmail.com> (raw)
In-Reply-To: <CAK9yfHwHw7esBObW=VATrgweNwqAKu82DGp6miGP0-O7v76c9w@mail.gmail.com>
Hi,
On Wed, Oct 30, 2013 at 3:22 PM, Sachin Kamat <sachin.kamat@linaro.org> wrote:
> Hi Leela,
>
> On 30 October 2013 15:21, Leela Krishna Amudala <l.krishna@samsung.com> wrote:
>> This patch adds pmusysreg node to Exynos5 dtsi file to handle PMU
>> register accesses in a centralized way using syscon driver
>>
>> Signed-off-by: Leela Krishna Amudala <l.krishna@samsung.com>
>> ---
>> arch/arm/boot/dts/exynos5.dtsi | 5 +++++
>> 1 file changed, 5 insertions(+)
>>
>> diff --git a/arch/arm/boot/dts/exynos5.dtsi b/arch/arm/boot/dts/exynos5.dtsi
>> index e52b038..918e732 100644
>> --- a/arch/arm/boot/dts/exynos5.dtsi
>> +++ b/arch/arm/boot/dts/exynos5.dtsi
>> @@ -106,4 +106,9 @@
>> #size-cells = <0>;
>> status = "disabled";
>> };
>> +
>> + pmu_sys_reg: pmusysreg@1004000 {
>> + compatible = "syscon";
>> + reg = <0x10040000 0x5000>;
>> + };
>> };
>
> Had a look at this in a bit detail and found the following.
> The register base address for this block on 5250 and 5420 as per the
> TRM is 0x10050000.
>
> Also, the binding document specifies the naming convention. According
> to it this node
> should like:
>
> sys_reg: sysreg@10050000 {
> compatible = "samsung,exynos5-sysreg", "syscon";
> reg = <0x10050000 0x500>;
> };
>
I know, but here my intention is not to regmap system register (0x10050000),
but instead PMU register (0x10040000), Hence created this node.
~Leela Krishna
> --
> With warm regards,
> Sachin
> --
> To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
> the body of a message to majordomo@vger.kernel.org
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next prev parent reply other threads:[~2013-10-30 10:09 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-30 9:51 [PATCH V4 0/3] Add watchdog DT nodes and use syscon regmap interfac to configure pmu registers Leela Krishna Amudala
2013-10-30 9:51 ` [PATCH V4 1/3] ARM: dts: Add pmu sysreg node to Exynos5 dtsi file Leela Krishna Amudala
2013-10-30 9:52 ` Sachin Kamat
2013-10-30 10:09 ` Leela Krishna Amudala [this message]
2013-10-30 10:13 ` Sachin Kamat
2013-10-30 11:22 ` Tomasz Figa
2013-10-30 15:26 ` Guenter Roeck
2013-10-30 14:42 ` Tomasz Figa
2013-10-31 5:29 ` Leela Krishna Amudala
2013-10-30 9:51 ` [PATCH V4 2/3] ARM: dts: add watchdog device nodes for Exynos5250 and Exynos5420 Leela Krishna Amudala
2013-10-30 9:51 ` [PATCH V4 3/3] watchdog: s3c2410_wdt: use syscon regmap interface to configure pmu register Leela Krishna Amudala
2013-10-30 14:39 ` Tomasz Figa
2013-10-31 5:31 ` Leela Krishna Amudala
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