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Date: Thu, 16 Jul 2015 10:38:51 +0900
From: Krzysztof Kozlowski <k.kozlowski@...sung.com>
To: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
Thomas Abraham <thomas.ab@...sung.com>,
Sylwester Nawrocki <s.nawrocki@...sung.com>,
Michael Turquette <mturquette@...libre.com>,
Kukjin Kim <kgene.kim@...sung.com>,
Kukjin Kim <kgene@...nel.org>,
Viresh Kumar <viresh.kumar@...aro.org>
Cc: Tomasz Figa <tomasz.figa@...il.com>,
Lukasz Majewski <l.majewski@...sung.com>,
Heiko Stuebner <heiko@...ech.de>,
Chanwoo Choi <cw00.choi@...sung.com>,
Kevin Hilman <khilman@...aro.org>,
Javier Martinez Canillas <javier@...hile0.org>,
linux-samsung-soc@...r.kernel.org, linux-clk@...r.kernel.org,
linux-pm@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org,
Doug Anderson <dianders@...omium.org>,
Andreas Faerber <afaerber@...e.de>
Subject: Re: [PATCH v3 2/4] ARM: dts: Exynos5250: add CPU OPP and regulator
supply property
On 16.07.2015 10:34, Krzysztof Kozlowski wrote:
> On 01.07.2015 22:10, Bartlomiej Zolnierkiewicz wrote:
>> From: Thomas Abraham <thomas.ab@...sung.com>
>>
>> For Exynos5250 platforms, add CPU operating points and CPU
>> regulator supply properties for migrating from Exynos specific
>> cpufreq driver to using generic cpufreq driver.
>>
>> Changes by Bartlomiej:
>> - split Exynos5250 support from the original patch
>> - added CPU regulator supply property for Google Spring board
>> - put the new cpu nodes in alphabetical order
>>
>> Cc: Kukjin Kim <kgene.kim@...sung.com>
>> Cc: Doug Anderson <dianders@...omium.org>
>> Cc: Javier Martinez Canillas <javier@...hile0.org>
>> Cc: Andreas Faerber <afaerber@...e.de>
>> Signed-off-by: Thomas Abraham <thomas.ab@...sung.com>
>> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
>> ---
>> arch/arm/boot/dts/exynos5250-arndale.dts | 4 ++++
>> arch/arm/boot/dts/exynos5250-smdk5250.dts | 4 ++++
>> arch/arm/boot/dts/exynos5250-snow.dts | 4 ++++
>> arch/arm/boot/dts/exynos5250-spring.dts | 4 ++++
>> arch/arm/boot/dts/exynos5250.dtsi | 22 ++++++++++++++++++++++
>> 5 files changed, 38 insertions(+)
>>
>> diff --git a/arch/arm/boot/dts/exynos5250-arndale.dts b/arch/arm/boot/dts/exynos5250-arndale.dts
>> index 7e728a1..db3f65f 100644
>> --- a/arch/arm/boot/dts/exynos5250-arndale.dts
>> +++ b/arch/arm/boot/dts/exynos5250-arndale.dts
>> @@ -117,6 +117,10 @@
>> };
>> };
>>
>> +&cpu0 {
>> + cpu0-supply = <&buck2_reg>;
>> +};
>> +
>> &dp {
>> status = "okay";
>> samsung,color-space = <0>;
>> diff --git a/arch/arm/boot/dts/exynos5250-smdk5250.dts b/arch/arm/boot/dts/exynos5250-smdk5250.dts
>> index 4fe186d..15aea76 100644
>> --- a/arch/arm/boot/dts/exynos5250-smdk5250.dts
>> +++ b/arch/arm/boot/dts/exynos5250-smdk5250.dts
>> @@ -74,6 +74,10 @@
>> };
>> };
>>
>> +&cpu0 {
>> + cpu0-supply = <&buck2_reg>;
>> +};
>> +
>> &dp {
>> samsung,color-space = <0>;
>> samsung,dynamic-range = <0>;
>> diff --git a/arch/arm/boot/dts/exynos5250-snow.dts b/arch/arm/boot/dts/exynos5250-snow.dts
>> index b7f4122..a4133df 100644
>> --- a/arch/arm/boot/dts/exynos5250-snow.dts
>> +++ b/arch/arm/boot/dts/exynos5250-snow.dts
>> @@ -235,6 +235,10 @@
>> };
>> };
>>
>> +&cpu0 {
>> + cpu0-supply = <&buck2_reg>;
>> +};
>> +
>> &dp {
>> status = "okay";
>> pinctrl-names = "default";
>> diff --git a/arch/arm/boot/dts/exynos5250-spring.dts b/arch/arm/boot/dts/exynos5250-spring.dts
>> index d03f9b8..c1edd6d 100644
>> --- a/arch/arm/boot/dts/exynos5250-spring.dts
>> +++ b/arch/arm/boot/dts/exynos5250-spring.dts
>> @@ -65,6 +65,10 @@
>> };
>> };
>>
>> +&cpu0 {
>> + cpu0-supply = <&buck2_reg>;
>> +};
>> +
>> &dp {
>> status = "okay";
>> pinctrl-names = "default";
>> diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
>> index bf9bee6..0c7ef12 100644
>> --- a/arch/arm/boot/dts/exynos5250.dtsi
>> +++ b/arch/arm/boot/dts/exynos5250.dtsi
>> @@ -63,6 +63,28 @@
>> compatible = "arm,cortex-a15";
>> reg = <0>;
>> clock-frequency = <1700000000>;
>> + clocks = <&clock CLK_ARM_CLK>;
>> + clock-names = "cpu";
>> + clock-latency = <140000>;
>> +
>> + operating-points = <
>> + 1700000 1300000
>> + 1600000 1250000
>> + 1500000 1225000
>> + 1400000 1200000
>> + 1300000 1150000
>> + 1200000 1125000
>> + 1100000 1100000
>> + 1000000 1075000
>> + 900000 1050000
>> + 800000 1025000
>> + 700000 1012500
>> + 600000 1000000
>> + 500000 975000
>> + 400000 950000
>> + 300000 937500
>> + 200000 925000
>> + >;
>> cooling-min-level = <15>;
>> cooling-max-level = <9>;
>> #cooling-cells = <2>; /* min followed by max */
>>
>
>
> I see you have all necessary acks so this can go through samsung-soc. I
> started applying everything. Patch 4/4 does not apply cleanly but this
> was easy to solve (I think it is better to rebase on Linus tree not on
> next in such case; subsystems cannot apply easily something depending on
> next).
>
> Unfortunately this patch (2/4) has build errors:
>
> DTC arch/arm/boot/dts/exynos5250-arndale.dtb
> Error: ../arch/arm/boot/dts/exynos5250.dtsi:65.21-22 syntax error
> FATAL ERROR: Unable to parse input tree
> make[2]: *** [arch/arm/boot/dts/exynos5250-arndale.dtb] Error 1
> make[1]: *** [dtbs] Error 2
> make[1]: *** Waiting for unfinished jobs....
> make[1]: Leaving directory `/home/kozik/dev/linux/krzk/out'
> make: *** [sub-make] Error 2
> Fail: Make error
>
> I tried to apply this patch on my dt-for-next branch:
> https://github.com/krzk/linux/commits/dt-for-next
>
> I hold back other patches until this is clarified.
Stupid me, it should not be split into separate branches as it depends
on clock id from headers.
Everything is fine, I applied patchset with respective tags (Javier's
reviewed/tested, Sylwester's and Viresh's acks). I'll send later to
Kukjin for v4.3 unless he picks it also.
Best regards,
Krzysztof
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