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* [PATCH] ARM: dts: at91: sam9x5: Fix the memory range assigned to the PMC
@ 2016-05-11  9:00 ` Boris Brezillon
  0 siblings, 0 replies; 6+ messages in thread
From: Boris Brezillon @ 2016-05-11  9:00 UTC (permalink / raw)
  To: linux-arm-kernel

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@free-electrons.com>
Reported-by: Richard Genoud <richard.genoud@gmail.com>
Tested-by: Richard Genoud <richard.genoud@gmail.com>
Fixes: 863a81c3be1d ("clk: at91: make use of syscon to share PMC registers in several drivers")
Cc: <stable@vger.kernel.org>
---
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.

Thanks,

Boris
---
 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 at fffffc00 {
 				compatible = "atmel,at91sam9x5-pmc", "syscon";
-				reg = <0xfffffc00 0x100>;
+				reg = <0xfffffc00 0x200>;
 				interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;
 				interrupt-controller;
 				#address-cells = <1>;
-- 
2.7.4

^ permalink raw reply related	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2016-05-11 15:14 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2016-05-11  9:00 [PATCH] ARM: dts: at91: sam9x5: Fix the memory range assigned to the PMC Boris Brezillon
2016-05-11  9:00 ` Boris Brezillon
2016-05-11 10:11 ` Nicolas Ferre
2016-05-11 10:11   ` Nicolas Ferre
2016-05-11 15:14   ` Nicolas Ferre
2016-05-11 15:14     ` Nicolas Ferre

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