Le 11/05/2016 11:00, Boris Brezillon a écrit :
> The memory range assigned to the PMC (Power Management Controller) was
> not including the PMC_PCR register which are used to control peripheral
> clocks.
>
> This was working fine thanks to the page granularity of ioremap(), but
> started to fail when we switched to syscon/regmap, because regmap is
> making sure that all accesses are falling into the reserved range.
>
> Signed-off-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxxxxxxx>
> Reported-by: Richard Genoud <richard.genoud@xxxxxxxxx>
> Tested-by: Richard Genoud <richard.genoud@xxxxxxxxx>
> Fixes: 863a81c3be1d ("clk: at91: make use of syscon to share PMC registers in several drivers")
> Cc: <stable@xxxxxxxxxxxxxxx>
Acked-by: Nicolas Ferre <nicolas.ferre@xxxxxxxxx>
Thanks Boris!
> ---
> Hi Arnd,
>
> This patch is fixing a regression reported by Richard. Since this
> regression was introduced in 4.6-rc1 it would be great if you could
> take it before 4.6 is released.
Arnd, arm-soc guys,
I can build a Pull-Request instantly today, if you wish: just tell me if
you prefer.
Bye,
> ---
> arch/arm/boot/dts/at91sam9x5.dtsi | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm/boot/dts/at91sam9x5.dtsi b/arch/arm/boot/dts/at91sam9x5.dtsi
> index 0827d59..cd0cd5f 100644
> --- a/arch/arm/boot/dts/at91sam9x5.dtsi
> +++ b/arch/arm/boot/dts/at91sam9x5.dtsi
> @@ -106,7 +106,7 @@
>
> pmc: pmc@fffffc00 {
> compatible = "atmel,at91sam9x5-pmc", "syscon";
> - reg = <0xfffffc00 0x100>;
> + reg = <0xfffffc00 0x200>;
> interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;
> interrupt-controller;
> #address-cells = <1>;
>
--
Nicolas Ferre
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