[PATCH 1/2] clk: samsung: audss: Fix silent hang on Exynos4412 due to disabled EPLL

[Sylwester Nawrocki]

On 06/21/2017 09:08 PM, Krzysztof Kozlowski wrote:
> Similarly to commit f1e9203e2366 ("clk: samsung: Fix Exynos 5420 pinctrl
> setup and clock disable failure due to domain being gated") for
> Exynos5420, the Exynos4412 also requires that EPLL is not disabled.
> Otherwise any access to MAUDIO block will silently halt.
> 
> This was not visible before because EPLL on Exynos4 could not be
> disabled before commit 6edfa11cb396 ("clk: samsung:
> Add enable/disable operation for PLL36XX clocks").  After this commit,
> on Odroid U3 board one can see silent hang, 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)
> 
> Mark Exynos4 variant as also needed EPLL to be enabled all the time.
> 
> Signed-off-by: Krzysztof Kozlowski<krzk at kernel.org>
Reviewed-by: Sylwester Nawrocki <s.nawrocki at samsung.com>

Stephen, Mike,

Can you please apply this patch directly?

-- 
Thanks,
Sylwester