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ARM: dts: exynos: Add clocks to audss block to fix silent hang on Exynos4412 

Add necessary parent clocks for audss (Audio SubSystem, MAUDIO) clock
controller block.

This allows driver to keep EPLL enabled before accessing any MAUDIO
registers thus fixing silent hang.  This silent hang appeared with
commit 6edfa11cb3 ("clk: samsung: Add enable/disable operation for
PLL36XX clocks"), e.g. on Odroid U3 usually with last (but unrelated)
messages:

	[    2.382741] input: gpio_keys as /devices/platform/gpio_keys/input/input0
	[    2.405686] usb 1-3: new high-speed USB device number 3 using exynos-ehci
	[    2.419843] max77686-rtc max77686-rtc: setting system clock to 2017-06-21 17:04:13 UTC (1498064653)

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Krzysztof Kozlowski 2017-07-17 21:45:27 +02:00 committed by Arnd Bergmann
parent b2e58cbee3
commit a3c0d2fb08
1 changed files with 3 additions and 0 deletions
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3
arch/arm/boot/dts/exynos4.dtsi
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@ -59,6 +59,9 @@ clock_audss: clock-controller@03810000 {
compatible = "samsung,exynos4210-audss-clock";
reg = <0x03810000 0x0C>;
#clock-cells = <1>;
clocks = <&clock CLK_FIN_PLL>, <&clock CLK_FOUT_EPLL>,
<&clock CLK_SCLK_AUDIO0>, <&clock CLK_SCLK_AUDIO0>;
clock-names = "pll_ref", "pll_in", "sclk_audio", "sclk_pcm_in";
};
i2s0: i2s@03830000 {