linux-kernel - Re: [PATCH 08/10] ARM: dts: Add rtc and adc dt node for exynos3250-artik5 module

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Message-id: <56E66462.9000402@samsung.com>
Date:	Mon, 14 Mar 2016 16:12:34 +0900
From:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
To:	Chanwoo Choi <cw00.choi@...sung.com>, kgene@...nel.org,
	s.nawrocki@...sung.com, tomasz.figa@...il.com
Cc:	jh80.chung@...sung.com, andi.shyti@...sung.com,
	inki.dae@...sung.com, sw0312.kim@...sung.com,
	pankaj.dubey@...sung.com, linux-samsung-soc@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org
Subject: Re: [PATCH 08/10] ARM: dts: Add rtc and adc dt node for
 exynos3250-artik5 module

On 14.03.2016 11:04, Chanwoo Choi wrote:
> This patch adds the RTC (Real Time Clock) and ADC (Analog Digital Converter)
> Device Tree node for exynos3250-artik5 module. The RTC is used for wakeup
> source and the ADC is used to read the analog data such as battery temperature.
> 
> ADC need to connect the some H/W device such as battery. So, this patch just
> adds the default setting (clock, regulator).
> 
> Signed-off-by: Chanwoo Choi <cw00.choi@...sung.com>
> ---
>  arch/arm/boot/dts/exynos3250-artik5.dtsi | 12 ++++++++++++
>  1 file changed, 12 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/exynos3250-artik5.dtsi b/arch/arm/boot/dts/exynos3250-artik5.dtsi
> index 877e4827df83..673883fda480 100644
> --- a/arch/arm/boot/dts/exynos3250-artik5.dtsi
> +++ b/arch/arm/boot/dts/exynos3250-artik5.dtsi
> @@ -48,6 +48,12 @@
>  	};
>  };
>  
> +&adc {
> +	vdd-supply = <&ldo7_reg>;
> +	assigned-clocks = <&cmu CLK_SCLK_TSADC>;
> +	assigned-clock-rates = <6000000>;
> +};

No thermistors, status non-okay. What is provided here?

> +
>  &cpu0 {
>  	cpu0-supply = <&buck2_reg>;
>  };
> @@ -319,6 +325,12 @@
>  	status = "okay";
>  };
>  
> +&rtc {
> +	clocks = <&cmu CLK_RTC>, <&s2mps14_osc S2MPS11_CLK_AP>;
> +	clock-names = "rtc", "rtc_src";
> +	status = "okay";
> +};

Same comment as for previous patch - just squash it. Splitting brings no
benefits and makes it more difficult to see bigger picture.

BR,
Krzysztof

> +
>  &xusbxti {
>  	clock-frequency = <24000000>;
>  };
>