lkml.org 
[lkml]   [2016]   [Oct]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH] ARM: sti: stih410-clocks: Add PROC_STFE as a critical clock
From
Date


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

\
 
 \ /
  Last update: 2016-10-20 15:52    [W:0.128 / U:0.720 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site