On 10/18/2016 05:35 PM, Peter Griffin wrote:
> Once the ST frontend demux HW IP has been enabled, the clock can't
> be disabled otherwise the system will hang and the board will
> be unserviceable.
> 
> To allow balanced clock enable/disable calls in the driver we use
> the critical clock infrastructure to take an extra reference on the
> clock so the clock will never actually be disabled.
> 
> Signed-off-by: Peter Griffin <[email protected]>
> ---
>  arch/arm/boot/dts/stih410-clock.dtsi | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm/boot/dts/stih410-clock.dtsi 
> b/arch/arm/boot/dts/stih410-clock.dtsi
> index 8598eff..07c8ef9 100644
> --- a/arch/arm/boot/dts/stih410-clock.dtsi
> +++ b/arch/arm/boot/dts/stih410-clock.dtsi
> @@ -208,7 +208,8 @@
>                                                    "clk-clust-hades",
>                                                    "clk-hwpe-hades",
>                                                    "clk-fc-hades";
> -                             clock-critical = <CLK_ICN_CPU>,
> +                             clock-critical = <CLK_PROC_STFE>,
> +                                              <CLK_ICN_CPU>,
>                                                <CLK_TX_ICN_DMU>,
>                                                <CLK_EXT2F_A9>,
>                                                <CLK_ICN_LMI>,
> 

Acked-by: Patrice Chotard <[email protected]>

Applied on sti-dt-for-4.10 branch

Thanks

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