linux-kernel - [PATCH 4.4 59/73] ARM: dts: at91: sam9x5: Fix the memory range assigned to the PMC

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Message-Id: <20160517011454.440515040@linuxfoundation.org>
Date:	Mon, 16 May 2016 18:15:29 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org,
	Boris Brezillon <boris.brezillon@...e-electrons.com>,
	Richard Genoud <richard.genoud@...il.com>,
	Nicolas Ferre <nicolas.ferre@...el.com>
Subject: [PATCH 4.4 59/73] ARM: dts: at91: sam9x5: Fix the memory range assigned to the PMC

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Boris Brezillon <boris.brezillon@...e-electrons.com>

commit aab0a4c83ceb344d2327194bf354820e50607af6 upstream.

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@...e-electrons.com>
Reported-by: Richard Genoud <richard.genoud@...il.com>
Tested-by: Richard Genoud <richard.genoud@...il.com>
Fixes: 863a81c3be1d ("clk: at91: make use of syscon to share PMC registers in several drivers")
Signed-off-by: Nicolas Ferre <nicolas.ferre@...el.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/arm/boot/dts/at91sam9x5.dtsi |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/arm/boot/dts/at91sam9x5.dtsi
+++ b/arch/arm/boot/dts/at91sam9x5.dtsi
@@ -106,7 +106,7 @@
 
 			pmc: pmc@...ffc00 {
 				compatible = "atmel,at91sam9x5-pmc", "syscon";
-				reg = <0xfffffc00 0x100>;
+				reg = <0xfffffc00 0x200>;
 				interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;
 				interrupt-controller;
 				#address-cells = <1>;