linux-kernel - [PATCH AUTOSEL 4.19 078/205] ARM: dts: meson8: fix the clock controller register size

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Date:   Fri,  8 Nov 2019 06:35:45 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Kevin Hilman <khilman@...libre.com>,
        Sasha Levin <sashal@...nel.org>, devicetree@...r.kernel.org,
        linux-amlogic@...ts.infradead.org
Subject: [PATCH AUTOSEL 4.19 078/205] ARM: dts: meson8: fix the clock controller register size

From: Martin Blumenstingl <martin.blumenstingl@...glemail.com>

[ Upstream commit f7f9da89bc4f61e33f7b9f5c75c4efdc1f0455d8 ]

The clock controller registers are not 0x460 wide because the reset
controller starts at CBUS 0x4404. This currently overlaps with the
clock controller (which is at CBUS 0x4000).

There is no public documentation available on the actual size of the
clock controller's register area (also called "HHI"). However, in
Amlogic's GPL kernel sources the last "HHI" register is
HHI_HDMI_PHY_CNTL2 at CBUS + 0x43a8. 0x400 was chosen because that size
doesn't seem unlikely.

Fixes: 2c323c43a3d619 ("ARM: dts: meson8: add and use the real clock controller")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Reviewed-by: Neil Armstrong <narmstrong@...libre.com>
Signed-off-by: Kevin Hilman <khilman@...libre.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/arm/boot/dts/meson8.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/meson8.dtsi b/arch/arm/boot/dts/meson8.dtsi
index d77dcf890cfc8..7162e0ca05b0a 100644
--- a/arch/arm/boot/dts/meson8.dtsi
+++ b/arch/arm/boot/dts/meson8.dtsi
@@ -194,7 +194,7 @@
 		#clock-cells = <1>;
 		#reset-cells = <1>;
 		compatible = "amlogic,meson8-clkc";
-		reg = <0x8000 0x4>, <0x4000 0x460>;
+		reg = <0x8000 0x4>, <0x4000 0x400>;
 	};
 
 	reset: reset-controller@...4 {
-- 
2.20.1