[PATCH v2 0/2] ARM: dts: exynos: Updates for Odroid HDMI audio

[PATCH v2 0/2] ARM: dts: exynos: Updates for Odroid HDMI audio

[Sylwester Nawrocki]

These patches are intended for v4.16-rc1 as they depend on the HDMI
codec patch which is going to be merged in coming merge window.

Sylwester Nawrocki (2):
  ARM: dts: exynos: Switch to dedicated Odroid-XU3 sound card binding
  ARM: dts: exynos: Add sound support for Odroid XU4

 arch/arm/boot/dts/exynos4.dtsi                    |  1 +
 arch/arm/boot/dts/exynos5420.dtsi                 |  1 +
 arch/arm/boot/dts/exynos5422-odroidxu3-audio.dtsi | 60 ++++++++++++++---------
 arch/arm/boot/dts/exynos5422-odroidxu4.dts        | 52 ++++++++++++++++++++
 4 files changed, 92 insertions(+), 22 deletions(-)

--
2.14.2

[PATCH v2 1/2] ARM: dts: exynos: Switch to dedicated Odroid-XU3 sound card binding

[Sylwester Nawrocki]

The new sound card DT binding is used for Odroid XU3 in order
to properly support the HDMI audio path.
Clocks configuration is changed so the I2S controller is now the bit
and the frame clock master with EPLL as the root clock source.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
---
 arch/arm/boot/dts/exynos4.dtsi                    |  1 +
 arch/arm/boot/dts/exynos5420.dtsi                 |  1 +
 arch/arm/boot/dts/exynos5422-odroidxu3-audio.dtsi | 60 ++++++++++++++---------
 3 files changed, 40 insertions(+), 22 deletions(-)

diff --git a/arch/arm/boot/dts/exynos4.dtsi b/arch/arm/boot/dts/exynos4.dtsi
index 5739389f5bb8..f82647c0adb1 100644
--- a/arch/arm/boot/dts/exynos4.dtsi
+++ b/arch/arm/boot/dts/exynos4.dtsi
@@ -755,6 +755,7 @@
 		phy = <&hdmi_i2c_phy>;
 		power-domains = <&pd_tv>;
 		samsung,syscon-phandle = <&pmu_system_controller>;
+		#sound-dai-cells = <0>;
 		status = "disabled";
 	};
 
diff --git a/arch/arm/boot/dts/exynos5420.dtsi b/arch/arm/boot/dts/exynos5420.dtsi
index 88e5d6d3f901..6f0414cce854 100644
--- a/arch/arm/boot/dts/exynos5420.dtsi
+++ b/arch/arm/boot/dts/exynos5420.dtsi
@@ -618,6 +618,7 @@
 			samsung,syscon-phandle = <&pmu_system_controller>;
 			status = "disabled";
 			power-domains = <&disp_pd>;
+			#sound-dai-cells = <0>;
 		};
 
 		hdmiphy: hdmiphy@145D0000 {
diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3-audio.dtsi b/arch/arm/boot/dts/exynos5422-odroidxu3-audio.dtsi
index da3141a307d5..fe4d8ef094d0 100644
--- a/arch/arm/boot/dts/exynos5422-odroidxu3-audio.dtsi
+++ b/arch/arm/boot/dts/exynos5422-odroidxu3-audio.dtsi
@@ -1,5 +1,5 @@
 /*
- * Hardkernel Odroid XU3 Audio Codec device tree source
+ * Hardkernel Odroid XU3 audio subsystem device tree source
  *
  * Copyright (c) 2015 Krzysztof Kozlowski
  * Copyright (c) 2014 Collabora Ltd.
@@ -15,13 +15,13 @@
 
 / {
 	sound: sound {
-		compatible = "simple-audio-card";
+		compatible = "samsung,odroid-xu3-audio";
+		model = "Odroid-XU3";
 
-		simple-audio-card,name = "Odroid-XU3";
-		simple-audio-card,widgets =
+		samsung,audio-widgets =
 			"Headphone", "Headphone Jack",
 			"Speakers", "Speakers";
-		simple-audio-card,routing =
+		samsung,audio-routing =
 			"Headphone Jack", "HPL",
 			"Headphone Jack", "HPR",
 			"Headphone Jack", "MICBIAS",
@@ -29,31 +29,47 @@
 			"Speakers", "SPKL",
 			"Speakers", "SPKR";
 
-		simple-audio-card,format = "i2s";
-		simple-audio-card,bitclock-master = <&link0_codec>;
-		simple-audio-card,frame-master = <&link0_codec>;
+		assigned-clocks = <&i2s0 CLK_I2S_RCLK_SRC>,
+				<&clock CLK_MOUT_EPLL>,
+				<&clock CLK_MOUT_MAU_EPLL>,
+				<&clock CLK_MOUT_USER_MAU_EPLL>,
+				<&clock_audss EXYNOS_MOUT_AUDSS>,
+				<&clock_audss EXYNOS_MOUT_I2S>,
+				<&clock_audss EXYNOS_DOUT_SRP>,
+				<&clock_audss EXYNOS_DOUT_AUD_BUS>,
+				<&clock_audss EXYNOS_DOUT_I2S>;
 
-		simple-audio-card,cpu {
+		assigned-clock-parents = <&clock_audss EXYNOS_SCLK_I2S>,
+				<&clock CLK_FOUT_EPLL>,
+				<&clock CLK_MOUT_EPLL>,
+				<&clock CLK_MOUT_MAU_EPLL>,
+				<&clock CLK_MAU_EPLL>,
+				<&clock_audss EXYNOS_MOUT_AUDSS>;
+
+		assigned-clock-rates = <0>,
+				<0>,
+				<0>,
+				<0>,
+				<0>,
+				<0>,
+				<196608001>,
+				<(196608002 / 2)>,
+				<196608000>;
+
+		cpu {
 			sound-dai = <&i2s0 0>;
-			system-clock-frequency = <19200000>;
 		};
-
-		link0_codec: simple-audio-card,codec {
-			sound-dai = <&max98090>;
-			clocks = <&i2s0 CLK_I2S_CDCLK>;
+		codec {
+			sound-dai = <&hdmi>, <&max98090>;
 		};
 	};
 };
 
 &clock_audss {
-	assigned-clocks = <&clock_audss EXYNOS_MOUT_AUDSS>,
-			<&clock_audss EXYNOS_MOUT_I2S>,
-			<&clock_audss EXYNOS_DOUT_AUD_BUS>;
-	assigned-clock-parents = <&clock CLK_FIN_PLL>,
-			<&clock_audss EXYNOS_MOUT_AUDSS>;
-	assigned-clock-rates = <0>,
-			<0>,
-			<19200000>;
+	assigned-clocks = <&clock_audss EXYNOS_DOUT_SRP>,
+			  <&clock CLK_FOUT_EPLL>;
+	assigned-clock-rates = <(196608000 / 256)>,
+			       <196608000>;
 };
 
 &hsi2c_5 {
-- 
2.14.2

Re: [PATCH v2 1/2] ARM: dts: exynos: Switch to dedicated Odroid-XU3 sound card binding

[Krzysztof Kozlowski]

On Fri, Nov 03, 2017 at 05:54:45PM +0100, Sylwester Nawrocki wrote:
> The new sound card DT binding is used for Odroid XU3 in order
> to properly support the HDMI audio path.
> Clocks configuration is changed so the I2S controller is now the bit
> and the frame clock master with EPLL as the root clock source.

Patch looks good but I do not understand this last sentence. What did
you want to say?

Best regards,
Krzysztof


> 
> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
> ---
>  arch/arm/boot/dts/exynos4.dtsi                    |  1 +
>  arch/arm/boot/dts/exynos5420.dtsi                 |  1 +
>  arch/arm/boot/dts/exynos5422-odroidxu3-audio.dtsi | 60 ++++++++++++++---------
>  3 files changed, 40 insertions(+), 22 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/exynos4.dtsi b/arch/arm/boot/dts/exynos4.dtsi
> index 5739389f5bb8..f82647c0adb1 100644
> --- a/arch/arm/boot/dts/exynos4.dtsi
> +++ b/arch/arm/boot/dts/exynos4.dtsi
> @@ -755,6 +755,7 @@
>  		phy = <&hdmi_i2c_phy>;
>  		power-domains = <&pd_tv>;
>  		samsung,syscon-phandle = <&pmu_system_controller>;
> +		#sound-dai-cells = <0>;
>  		status = "disabled";
>  	};
>  
> diff --git a/arch/arm/boot/dts/exynos5420.dtsi b/arch/arm/boot/dts/exynos5420.dtsi
> index 88e5d6d3f901..6f0414cce854 100644
> --- a/arch/arm/boot/dts/exynos5420.dtsi
> +++ b/arch/arm/boot/dts/exynos5420.dtsi
> @@ -618,6 +618,7 @@
>  			samsung,syscon-phandle = <&pmu_system_controller>;
>  			status = "disabled";
>  			power-domains = <&disp_pd>;
> +			#sound-dai-cells = <0>;
>  		};
>  
>  		hdmiphy: hdmiphy@145D0000 {
> diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3-audio.dtsi b/arch/arm/boot/dts/exynos5422-odroidxu3-audio.dtsi
> index da3141a307d5..fe4d8ef094d0 100644
> --- a/arch/arm/boot/dts/exynos5422-odroidxu3-audio.dtsi
> +++ b/arch/arm/boot/dts/exynos5422-odroidxu3-audio.dtsi
> @@ -1,5 +1,5 @@
>  /*
> - * Hardkernel Odroid XU3 Audio Codec device tree source
> + * Hardkernel Odroid XU3 audio subsystem device tree source
>   *
>   * Copyright (c) 2015 Krzysztof Kozlowski
>   * Copyright (c) 2014 Collabora Ltd.
> @@ -15,13 +15,13 @@
>  
>  / {
>  	sound: sound {
> -		compatible = "simple-audio-card";
> +		compatible = "samsung,odroid-xu3-audio";
> +		model = "Odroid-XU3";
>  
> -		simple-audio-card,name = "Odroid-XU3";
> -		simple-audio-card,widgets =
> +		samsung,audio-widgets =
>  			"Headphone", "Headphone Jack",
>  			"Speakers", "Speakers";
> -		simple-audio-card,routing =
> +		samsung,audio-routing =
>  			"Headphone Jack", "HPL",
>  			"Headphone Jack", "HPR",
>  			"Headphone Jack", "MICBIAS",
> @@ -29,31 +29,47 @@
>  			"Speakers", "SPKL",
>  			"Speakers", "SPKR";
>  
> -		simple-audio-card,format = "i2s";
> -		simple-audio-card,bitclock-master = <&link0_codec>;
> -		simple-audio-card,frame-master = <&link0_codec>;
> +		assigned-clocks = <&i2s0 CLK_I2S_RCLK_SRC>,
> +				<&clock CLK_MOUT_EPLL>,
> +				<&clock CLK_MOUT_MAU_EPLL>,
> +				<&clock CLK_MOUT_USER_MAU_EPLL>,
> +				<&clock_audss EXYNOS_MOUT_AUDSS>,
> +				<&clock_audss EXYNOS_MOUT_I2S>,
> +				<&clock_audss EXYNOS_DOUT_SRP>,
> +				<&clock_audss EXYNOS_DOUT_AUD_BUS>,
> +				<&clock_audss EXYNOS_DOUT_I2S>;
>  
> -		simple-audio-card,cpu {
> +		assigned-clock-parents = <&clock_audss EXYNOS_SCLK_I2S>,
> +				<&clock CLK_FOUT_EPLL>,
> +				<&clock CLK_MOUT_EPLL>,
> +				<&clock CLK_MOUT_MAU_EPLL>,
> +				<&clock CLK_MAU_EPLL>,
> +				<&clock_audss EXYNOS_MOUT_AUDSS>;
> +
> +		assigned-clock-rates = <0>,
> +				<0>,
> +				<0>,
> +				<0>,
> +				<0>,
> +				<0>,
> +				<196608001>,
> +				<(196608002 / 2)>,
> +				<196608000>;
> +
> +		cpu {
>  			sound-dai = <&i2s0 0>;
> -			system-clock-frequency = <19200000>;
>  		};
> -
> -		link0_codec: simple-audio-card,codec {
> -			sound-dai = <&max98090>;
> -			clocks = <&i2s0 CLK_I2S_CDCLK>;
> +		codec {
> +			sound-dai = <&hdmi>, <&max98090>;
>  		};
>  	};
>  };
>  
>  &clock_audss {
> -	assigned-clocks = <&clock_audss EXYNOS_MOUT_AUDSS>,
> -			<&clock_audss EXYNOS_MOUT_I2S>,
> -			<&clock_audss EXYNOS_DOUT_AUD_BUS>;
> -	assigned-clock-parents = <&clock CLK_FIN_PLL>,
> -			<&clock_audss EXYNOS_MOUT_AUDSS>;
> -	assigned-clock-rates = <0>,
> -			<0>,
> -			<19200000>;
> +	assigned-clocks = <&clock_audss EXYNOS_DOUT_SRP>,
> +			  <&clock CLK_FOUT_EPLL>;
> +	assigned-clock-rates = <(196608000 / 256)>,
> +			       <196608000>;
>  };
>  
>  &hsi2c_5 {
> -- 
> 2.14.2
> 

Re: [PATCH v2 1/2] ARM: dts: exynos: Switch to dedicated Odroid-XU3 sound card binding

[Sylwester Nawrocki]

On 11/10/2017 06:14 PM, Krzysztof Kozlowski wrote:
> On Fri, Nov 03, 2017 at 05:54:45PM +0100, Sylwester Nawrocki wrote:
>> The new sound card DT binding is used for Odroid XU3 in order
>> to properly support the HDMI audio path.
>> Clocks configuration is changed so the I2S controller is now the bit
>> and the frame clock master with EPLL as the root clock source.
>
> Patch looks good but I do not understand this last sentence. What did
> you want to say?

Which part is hard to understand exactly? Perhaps this is clearer?

"Clocks configuration is changed so the I2S controller is now the bit
clock and the frame clock master.  The EPLL output clock is now the 
audio root clock adjusted to each audio sample rate."

Previously the CODEC's internal PLL was used for generating the I2S
bit and frame clocks accorrding to each audio sample rate.

-- 
Regards,
Sylwester

Re: [PATCH v2 1/2] ARM: dts: exynos: Switch to dedicated Odroid-XU3 sound card binding

[Krzysztof Kozlowski]

On Mon, Nov 13, 2017 at 12:30 PM, Sylwester Nawrocki
<s.nawrocki@samsung.com> wrote:
> On 11/10/2017 06:14 PM, Krzysztof Kozlowski wrote:
>> On Fri, Nov 03, 2017 at 05:54:45PM +0100, Sylwester Nawrocki wrote:
>>> The new sound card DT binding is used for Odroid XU3 in order
>>> to properly support the HDMI audio path.
>>> Clocks configuration is changed so the I2S controller is now the bit
>>> and the frame clock master with EPLL as the root clock source.
>>
>> Patch looks good but I do not understand this last sentence. What did
>> you want to say?
>
> Which part is hard to understand exactly? Perhaps this is clearer?
>
> "Clocks configuration is changed so the I2S controller is now the bit
> clock and the frame clock master.  The EPLL output clock is now the
> audio root clock adjusted to each audio sample rate."
>
> Previously the CODEC's internal PLL was used for generating the I2S
> bit and frame clocks accorrding to each audio sample rate.

Ahhh, makes sense, the previous "is not the bit and..." mislead me. I
thought it's a typo, you wanted to use "but" and something is missing.
The extended description is I think better, so I'll use it in commit
msg when applying.

Best regards,
Krzysztof

Re: [PATCH v2 1/2] ARM: dts: exynos: Switch to dedicated Odroid-XU3 sound card binding

[Krzysztof Kozlowski]

On Fri, Nov 03, 2017 at 05:54:45PM +0100, Sylwester Nawrocki wrote:
> The new sound card DT binding is used for Odroid XU3 in order
> to properly support the HDMI audio path.
> Clocks configuration is changed so the I2S controller is now the bit
> and the frame clock master with EPLL as the root clock source.
> 
> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
> ---
>  arch/arm/boot/dts/exynos4.dtsi                    |  1 +
>  arch/arm/boot/dts/exynos5420.dtsi                 |  1 +
>  arch/arm/boot/dts/exynos5422-odroidxu3-audio.dtsi | 60 ++++++++++++++---------
>  3 files changed, 40 insertions(+), 22 deletions(-)
> 

Thanks, applied both.

Best regards,
Krzysztof

Re: [PATCH v2 1/2] ARM: dts: exynos: Switch to dedicated Odroid-XU3 sound card binding

[Krzysztof Kozlowski]

On Mon, Nov 27, 2017 at 7:12 PM, Krzysztof Kozlowski <krzk@kernel.org> wrote:
> On Fri, Nov 03, 2017 at 05:54:45PM +0100, Sylwester Nawrocki wrote:
>> The new sound card DT binding is used for Odroid XU3 in order
>> to properly support the HDMI audio path.
>> Clocks configuration is changed so the I2S controller is now the bit
>> and the frame clock master with EPLL as the root clock source.
>>
>> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
>> ---
>>  arch/arm/boot/dts/exynos4.dtsi                    |  1 +
>>  arch/arm/boot/dts/exynos5420.dtsi                 |  1 +
>>  arch/arm/boot/dts/exynos5422-odroidxu3-audio.dtsi | 60 ++++++++++++++---------
>>  3 files changed, 40 insertions(+), 22 deletions(-)
>>


Unfortunately this patch causes the audio card to disappear on Odroid
XU3. "aplay -L" shows nothing and obviously speaker-test fails.

Applied on v4.15-rc1... any dependencies are missing?

Full boot-logs are here:
http://www.krzk.eu/#/builders/1/builds/976
(test exits on aplay -L).

Should this be dropped?

Best regards,
Krzysztof

Re: [PATCH v2 1/2] ARM: dts: exynos: Switch to dedicated Odroid-XU3 sound card binding

[Marek Szyprowski]

Hi Krzysztof,

On 2017-11-29 18:55, Krzysztof Kozlowski wrote:
> On Mon, Nov 27, 2017 at 7:12 PM, Krzysztof Kozlowski <krzk@kernel.org> wrote:
>> On Fri, Nov 03, 2017 at 05:54:45PM +0100, Sylwester Nawrocki wrote:
>>> The new sound card DT binding is used for Odroid XU3 in order
>>> to properly support the HDMI audio path.
>>> Clocks configuration is changed so the I2S controller is now the bit
>>> and the frame clock master with EPLL as the root clock source.
>>>
>>> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
>>> ---
>>>   arch/arm/boot/dts/exynos4.dtsi                    |  1 +
>>>   arch/arm/boot/dts/exynos5420.dtsi                 |  1 +
>>>   arch/arm/boot/dts/exynos5422-odroidxu3-audio.dtsi | 60 ++++++++++++++---------
>>>   3 files changed, 40 insertions(+), 22 deletions(-)
>>>
>
> Unfortunately this patch causes the audio card to disappear on Odroid
> XU3. "aplay -L" shows nothing and obviously speaker-test fails.
>
> Applied on v4.15-rc1... any dependencies are missing?
>
> Full boot-logs are here:
> http://www.krzk.eu/#/builders/1/builds/976
> (test exits on aplay -L).
>
> Should this be dropped?

Please add CONFIG_SND_SOC_ODROID=y to you .config. Probably exynos_defconfig
and multi_v7_defconfig should be updated too.

Best regards
-- 
Marek Szyprowski, PhD
Samsung R&D Institute Poland

Re: [PATCH v2 1/2] ARM: dts: exynos: Switch to dedicated Odroid-XU3 sound card binding

[Krzysztof Kozlowski]

On Thu, Nov 30, 2017 at 8:30 AM, Marek Szyprowski
<m.szyprowski@samsung.com> wrote:
> Hi Krzysztof,
>
> On 2017-11-29 18:55, Krzysztof Kozlowski wrote:
>>
>> On Mon, Nov 27, 2017 at 7:12 PM, Krzysztof Kozlowski <krzk@kernel.org>
>> wrote:
>>>
>>> On Fri, Nov 03, 2017 at 05:54:45PM +0100, Sylwester Nawrocki wrote:
>>>>
>>>> The new sound card DT binding is used for Odroid XU3 in order
>>>> to properly support the HDMI audio path.
>>>> Clocks configuration is changed so the I2S controller is now the bit
>>>> and the frame clock master with EPLL as the root clock source.
>>>>
>>>> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
>>>> ---
>>>>   arch/arm/boot/dts/exynos4.dtsi                    |  1 +
>>>>   arch/arm/boot/dts/exynos5420.dtsi                 |  1 +
>>>>   arch/arm/boot/dts/exynos5422-odroidxu3-audio.dtsi | 60
>>>> ++++++++++++++---------
>>>>   3 files changed, 40 insertions(+), 22 deletions(-)
>>>>
>>
>> Unfortunately this patch causes the audio card to disappear on Odroid
>> XU3. "aplay -L" shows nothing and obviously speaker-test fails.
>>
>> Applied on v4.15-rc1... any dependencies are missing?
>>
>> Full boot-logs are here:
>> http://www.krzk.eu/#/builders/1/builds/976
>> (test exits on aplay -L).
>>
>> Should this be dropped?
>
>
> Please add CONFIG_SND_SOC_ODROID=y to you .config. Probably exynos_defconfig
> and multi_v7_defconfig should be updated too.

That would explain it. Can you send a patch for both of configs?

Best regards,
Krzysztof

[PATCH v2 2/2] ARM: dts: exynos: Add sound support for Odroid XU4

[Sylwester Nawrocki]

This patch adds support for Odroid XU4 audio. The main difference
comparing to Odroid XU3 is a missing on-board audio CODEC, only
HDMI output is supported on Odroid XU4. External CODEC could be
optionally connected to the I2S port connector.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
---
 arch/arm/boot/dts/exynos5422-odroidxu4.dts | 52 ++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)

diff --git a/arch/arm/boot/dts/exynos5422-odroidxu4.dts b/arch/arm/boot/dts/exynos5422-odroidxu4.dts
index 2faf88627a48..0c2f1ef8a552 100644
--- a/arch/arm/boot/dts/exynos5422-odroidxu4.dts
+++ b/arch/arm/boot/dts/exynos5422-odroidxu4.dts
@@ -12,6 +12,7 @@
 */
 
 /dts-v1/;
+#include <dt-bindings/sound/samsung-i2s.h>
 #include "exynos5422-odroidxu3-common.dtsi"
 
 / {
@@ -30,6 +31,57 @@
 			linux,default-trigger = "heartbeat";
 		};
 	};
+
+	sound: sound {
+		compatible = "samsung,odroid-xu3-audio";
+		model = "Odroid-XU4";
+
+		assigned-clocks = <&i2s0 CLK_I2S_RCLK_SRC>,
+				<&clock CLK_MOUT_EPLL>,
+				<&clock CLK_MOUT_MAU_EPLL>,
+				<&clock CLK_MOUT_USER_MAU_EPLL>,
+				<&clock_audss EXYNOS_MOUT_AUDSS>,
+				<&clock_audss EXYNOS_MOUT_I2S>,
+				<&clock_audss EXYNOS_DOUT_SRP>,
+				<&clock_audss EXYNOS_DOUT_AUD_BUS>,
+				<&clock_audss EXYNOS_DOUT_I2S>;
+
+		assigned-clock-parents = <&clock_audss EXYNOS_SCLK_I2S>,
+				<&clock CLK_FOUT_EPLL>,
+				<&clock CLK_MOUT_EPLL>,
+				<&clock CLK_MOUT_MAU_EPLL>,
+				<&clock CLK_MAU_EPLL>,
+				<&clock_audss EXYNOS_MOUT_AUDSS>;
+
+		assigned-clock-rates = <0>,
+				<0>,
+				<0>,
+				<0>,
+				<0>,
+				<0>,
+				<196608001>,
+				<(196608002 / 2)>,
+				<196608000>;
+
+		cpu {
+			sound-dai = <&i2s0 0>;
+		};
+
+		codec {
+			sound-dai = <&hdmi>;
+		};
+	};
+};
+
+&clock_audss {
+	assigned-clocks = <&clock_audss EXYNOS_DOUT_SRP>,
+			  <&clock CLK_FOUT_EPLL>;
+	assigned-clock-rates = <(196608000 / 256)>,
+			       <196608000>;
+};
+
+&i2s0 {
+	status = "okay";
 };
 
 &pwm {
-- 
2.14.2

Re: [PATCH v2 2/2] ARM: dts: exynos: Add sound support for Odroid XU4

[Krzysztof Kozlowski]

On Fri, Nov 03, 2017 at 05:54:46PM +0100, Sylwester Nawrocki wrote:
> This patch adds support for Odroid XU4 audio. The main difference
> comparing to Odroid XU3 is a missing on-board audio CODEC, only
> HDMI output is supported on Odroid XU4. External CODEC could be
> optionally connected to the I2S port connector.
> 
> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
> ---
>  arch/arm/boot/dts/exynos5422-odroidxu4.dts | 52 ++++++++++++++++++++++++++++++
>  1 file changed, 52 insertions(+)
>

Looks good, I will take it after merge window. For my own reference:
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>

Best regards,
Krzysztof