[RESEND PATCH 2/2] ARM: dts: exynos4412-trats2: Enable TMU support at Trats2

[RESEND PATCH 2/2] ARM: dts: exynos4412-trats2: Enable TMU support at Trats2

[Lukasz Majewski]

This patch enables support for TMU at Exynos4412 based Trats2 board.

Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: Tomasz Figa <tomasz.figa@gmail.com>
---
 arch/arm/boot/dts/exynos4412-trats2.dts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm/boot/dts/exynos4412-trats2.dts b/arch/arm/boot/dts/exynos4412-trats2.dts
index 5e066cd..121430d 100644
--- a/arch/arm/boot/dts/exynos4412-trats2.dts
+++ b/arch/arm/boot/dts/exynos4412-trats2.dts
@@ -551,6 +551,11 @@
 		status = "okay";
 	};
 
+	tmu at 100C0000 {
+		vtmu-supply = <&ldo10_reg>;
+		status = "okay";
+	};
+
 	i2c_ak8975: i2c-gpio-0 {
 		compatible = "i2c-gpio";
 		gpios = <&gpy2 4 0>, <&gpy2 5 0>;
-- 
2.0.0.rc2

[RESEND PATCH 1/2] ARM: dts: exynos4x12: Device tree node definition for TMU on Exynos4x12

[Kukjin Kim]

Lukasz Majewski wrote:
> 
+ Bart, Tomasz and MLs

Hi Lukasz,

Please post including MLs, even resending.

Will apply for v3.19, and just note that you asked me to apply this for 3.18
in personal talk but I couldn't see any requirements for fixes-3.18. If I'm
missing something, please let me know.

Thanks,
Kukjin

> The TMU device tree node definition for Exynos4x12 family of SoCs.
> 
> Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
> Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
> Reviewed-by: Tomasz Figa <tomasz.figa@gmail.com>
> ---
>  arch/arm/boot/dts/exynos4x12.dtsi | 10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/exynos4x12.dtsi b/arch/arm/boot/dts/exynos4x12.dtsi
> index 861bb91..2e9f1f7 100644
> --- a/arch/arm/boot/dts/exynos4x12.dtsi
> +++ b/arch/arm/boot/dts/exynos4x12.dtsi
> @@ -271,4 +271,14 @@
>  		compatible = "samsung,exynos4x12-usb2-phy";
>  		samsung,sysreg-phandle = <&sys_reg>;
>  	};
> +
> +	tmu at 100C0000 {
> +		compatible = "samsung,exynos4412-tmu";
> +		interrupt-parent = <&combiner>;
> +		interrupts = <2 4>;
> +		reg = <0x100C0000 0x100>;
> +		clocks = <&clock 383>;
> +		clock-names = "tmu_apbif";
> +		status = "disabled";
> +	};
>  };
> --
> 2.0.0.rc2

[RESEND PATCH 2/2] ARM: dts: exynos4412-trats2: Enable TMU support at Trats2

[Kukjin Kim]

Lukasz Majewski wrote:
> 
+ Bart, Tomasz and MLs

Will apply.

Thanks
Kukjin

> This patch enables support for TMU at Exynos4412 based Trats2 board.
> 
> Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
> Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
> Reviewed-by: Tomasz Figa <tomasz.figa@gmail.com>
> ---
>  arch/arm/boot/dts/exynos4412-trats2.dts | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/exynos4412-trats2.dts b/arch/arm/boot/dts/exynos4412-trats2.dts
> index 5e066cd..121430d 100644
> --- a/arch/arm/boot/dts/exynos4412-trats2.dts
> +++ b/arch/arm/boot/dts/exynos4412-trats2.dts
> @@ -551,6 +551,11 @@
>  		status = "okay";
>  	};
> 
> +	tmu at 100C0000 {
> +		vtmu-supply = <&ldo10_reg>;
> +		status = "okay";
> +	};
> +
>  	i2c_ak8975: i2c-gpio-0 {
>  		compatible = "i2c-gpio";
>  		gpios = <&gpy2 4 0>, <&gpy2 5 0>;
> --
> 2.0.0.rc2

[RESEND PATCH 1/2] ARM: dts: exynos4x12: Device tree node definition for TMU on Exynos4x12

[Lukasz Majewski]

Hi Kukjin,

> Lukasz Majewski wrote:
> > 
> + Bart, Tomasz and MLs
> 
> Hi Lukasz,
> 
> Please post including MLs, even resending.
> 
> Will apply for v3.19, and just note that you asked me to apply this
> for 3.18 in personal talk but I couldn't see any requirements for
> fixes-3.18. If I'm missing something, please let me know.

The thing is that by default Exynos 4412 (trats2) can run with modified
cpufreq to support SW governed overclocking (BOOST).

To provide safe BOOST operation, TMU (thermal) _must_ be configured.
Configuration is not possible when trats2 DTS lacks of those patches.

So, yes there is a requirement to add those patches to v3.18 (if not
possible please add it to v3.19).

> 
> Thanks,
> Kukjin
> 
> > The TMU device tree node definition for Exynos4x12 family of SoCs.
> > 
> > Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
> > Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
> > Reviewed-by: Tomasz Figa <tomasz.figa@gmail.com>
> > ---
> >  arch/arm/boot/dts/exynos4x12.dtsi | 10 ++++++++++
> >  1 file changed, 10 insertions(+)
> > 
> > diff --git a/arch/arm/boot/dts/exynos4x12.dtsi
> > b/arch/arm/boot/dts/exynos4x12.dtsi index 861bb91..2e9f1f7 100644
> > --- a/arch/arm/boot/dts/exynos4x12.dtsi
> > +++ b/arch/arm/boot/dts/exynos4x12.dtsi
> > @@ -271,4 +271,14 @@
> >  		compatible = "samsung,exynos4x12-usb2-phy";
> >  		samsung,sysreg-phandle = <&sys_reg>;
> >  	};
> > +
> > +	tmu at 100C0000 {
> > +		compatible = "samsung,exynos4412-tmu";
> > +		interrupt-parent = <&combiner>;
> > +		interrupts = <2 4>;
> > +		reg = <0x100C0000 0x100>;
> > +		clocks = <&clock 383>;
> > +		clock-names = "tmu_apbif";
> > +		status = "disabled";
> > +	};
> >  };
> > --
> > 2.0.0.rc2
> 
> 
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel at lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel


-- 
Best regards,

Lukasz Majewski

Samsung R&D Institute Poland (SRPOL) | Linux Platform Group

[RESEND PATCH 1/2] ARM: dts: exynos4x12: Device tree node definition for TMU on Exynos4x12

[Kukjin Kim]

On 11/24/14 17:49, Lukasz Majewski wrote:
> Hi Kukjin,
> 
>> Lukasz Majewski wrote:
>>>
>> + Bart, Tomasz and MLs
>>
>> Hi Lukasz,
>>
>> Please post including MLs, even resending.
>>
>> Will apply for v3.19, and just note that you asked me to apply this
>> for 3.18 in personal talk but I couldn't see any requirements for
>> fixes-3.18. If I'm missing something, please let me know.
> 
> The thing is that by default Exynos 4412 (trats2) can run with modified
> cpufreq to support SW governed overclocking (BOOST).
> 
> To provide safe BOOST operation, TMU (thermal) _must_ be configured.
> Configuration is not possible when trats2 DTS lacks of those patches.
> 
Well, AFAIK the BOOST mode is only available on only Samsung mobile not
mainline and so I think this is not for bug fix in mainline for 3.18...

- Kukjin

> So, yes there is a requirement to add those patches to v3.18 (if not
> possible please add it to v3.19).
> 
>>
>> Thanks,
>> Kukjin
>>
>>> The TMU device tree node definition for Exynos4x12 family of SoCs.
>>>
>>> Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
>>> Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
>>> Reviewed-by: Tomasz Figa <tomasz.figa@gmail.com>
>>> ---
>>>  arch/arm/boot/dts/exynos4x12.dtsi | 10 ++++++++++
>>>  1 file changed, 10 insertions(+)