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Re: [PATCH] ARM: sti: stih410-clocks: Add PROC_STFE as a critical clock

From Patrice Chotard <patrice.chotard@st.com>
Newsgroups linux.kernel
Subject Re: [PATCH] ARM: sti: stih410-clocks: Add PROC_STFE as a critical clock
Date 2016-10-20 16:00 +0200
Message-ID <sum30-8m4-19@gated-at.bofh.it> (permalink)
References <stEEF-3BE-27@gated-at.bofh.it>
Organization linux.* mail to news gateway

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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 <peter.griffin@linaro.org>
> ---
>  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 <patrice.chotard@st.com>

Applied on sti-dt-for-4.10 branch

Thanks

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[PATCH] ARM: sti: stih410-clocks: Add PROC_STFE as a critical clock Peter Griffin <peter.griffin@linaro.org> - 2016-10-18 17:40 +0200
  Re: [PATCH] ARM: sti: stih410-clocks: Add PROC_STFE as a critical  clock Patrice Chotard <patrice.chotard@st.com> - 2016-10-20 16:00 +0200
  Re: [PATCH] ARM: sti: stih410-clocks: Add PROC_STFE as a critical  clock Lee Jones <lee.jones@linaro.org> - 2016-10-24 11:00 +0200
    Re: [PATCH] ARM: sti: stih410-clocks: Add PROC_STFE as a critical  clock Peter Griffin <peter.griffin@linaro.org> - 2016-10-24 15:50 +0200
      Re: [PATCH] ARM: sti: stih410-clocks: Add PROC_STFE as a critical  clock Lee Jones <lee.jones@linaro.org> - 2016-10-25 09:50 +0200
        Re: [PATCH] ARM: sti: stih410-clocks: Add PROC_STFE as a critical  clock Peter Griffin <peter.griffin@linaro.org> - 2016-10-25 11:40 +0200
          Re: [PATCH] ARM: sti: stih410-clocks: Add PROC_STFE as a critical  clock Lee Jones <lee.jones@linaro.org> - 2016-10-25 12:00 +0200
            Re: [PATCH] ARM: sti: stih410-clocks: Add PROC_STFE as a critical  clock Peter Griffin <peter.griffin@linaro.org> - 2016-10-25 16:00 +0200
              Re: [PATCH] ARM: sti: stih410-clocks: Add PROC_STFE as a critical  clock Lee Jones <lee.jones@linaro.org> - 2016-10-26 10:50 +0200
                Re: [PATCH] ARM: sti: stih410-clocks: Add PROC_STFE as a critical  clock Peter Griffin <peter.griffin@linaro.org> - 2016-10-26 11:00 +0200
                Re: [PATCH] ARM: sti: stih410-clocks: Add PROC_STFE as a critical  clock Lee Jones <lee.jones@linaro.org> - 2016-10-26 15:00 +0200

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