linux-kernel - [PATCH 4.2 057/110] ARM: dts: Fix audio card detection on Peach boards

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Message-Id: <20151106191706.358971400@linuxfoundation.org>
Date:	Fri,  6 Nov 2015 11:19:04 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Alim Akhtar <alim.akhtar@...sung.com>,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	Kukjin Kim <kgene@...nel.org>
Subject: [PATCH 4.2 057/110] ARM: dts: Fix audio card detection on Peach boards

4.2-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Alim Akhtar <alim.akhtar@...sung.com>

commit b8bb9baad27e455c467e8fac47eebadbe765c18f upstream.

Since commit 2fad972d45c4 ("ARM: dts: Add mclk entry for Peach boards"),
sound card detection is broken on peach boards and gives below errors:

[    3.630457] max98090 7-0010: MAX98091 REVID=0x51
[    3.634233] max98090 7-0010: use default 2.8v micbias
[    3.640985] snow-audio sound: HiFi <-> 3830000.i2s mapping ok
[    3.645307] max98090 7-0010: Invalid master clock frequency
[    3.650824] snow-audio sound: ASoC: Peach-Pi-I2S-MAX98091 late_probe() failed: -22
[    3.658914] snow-audio sound: snd_soc_register_card failed (-22)
[    3.664366] snow-audio: probe of sound failed with error -22

This patch adds missing assigned-clocks and assigned-clock-parents for
pmu_system_controller node which is used as "mclk" for audio codec.

Fixes: 2fad972d45c4 ("ARM: dts: Add mclk entry for Peach boards")
Signed-off-by: Alim Akhtar <alim.akhtar@...sung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
Signed-off-by: Kukjin Kim <kgene@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/arm/boot/dts/exynos5420-peach-pit.dts |    5 +++++
 arch/arm/boot/dts/exynos5800-peach-pi.dts  |    5 +++++
 2 files changed, 10 insertions(+)

--- a/arch/arm/boot/dts/exynos5420-peach-pit.dts
+++ b/arch/arm/boot/dts/exynos5420-peach-pit.dts
@@ -915,6 +915,11 @@
 	};
 };
 
+&pmu_system_controller {
+	assigned-clocks = <&pmu_system_controller 0>;
+	assigned-clock-parents = <&clock CLK_FIN_PLL>;
+};
+
 &rtc {
 	status = "okay";
 	clocks = <&clock CLK_RTC>, <&max77802 MAX77802_CLK_32K_AP>;
--- a/arch/arm/boot/dts/exynos5800-peach-pi.dts
+++ b/arch/arm/boot/dts/exynos5800-peach-pi.dts
@@ -878,6 +878,11 @@
 	};
 };
 
+&pmu_system_controller {
+	assigned-clocks = <&pmu_system_controller 0>;
+	assigned-clock-parents = <&clock CLK_FIN_PLL>;
+};
+
 &rtc {
 	status = "okay";
 	clocks = <&clock CLK_RTC>, <&max77802 MAX77802_CLK_32K_AP>;


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