Le 11/05/2016 12:11, Nicolas Ferre a écrit :
> 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.
Actually, I've just sent one so that we don't loose time:
"[GIT PULL] at91: fixes for 4.6 #2"
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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