Currently all I2C interfaces in all *.dtsi files for various Renesas SoCs
are enabled by default. Switch them all off and only enable populated I2C
interfaces in board-specific *.dts files.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@xxxxxxxxx>
---
RFC because this can break things. E.g. if someone relied on an I2C bus
being available and used it from the user-space. Otherwise I don't think
it should break anything. Compile-tested all affected .dtb, run-time
tested on kzm9g.
arch/arm/boot/dts/r8a73a4-ape6evm-reference.dts | 1 +
arch/arm/boot/dts/r8a73a4-ape6evm.dts | 1 +
arch/arm/boot/dts/r8a73a4.dtsi | 9 +++++++++
.../boot/dts/r8a7740-armadillo800eva-reference.dts | 1 +
arch/arm/boot/dts/r8a7740.dtsi | 2 ++
arch/arm/boot/dts/r8a7779.dtsi | 4 ++++
arch/arm/boot/dts/sh73a0-kzm9g-reference.dts | 2 ++
arch/arm/boot/dts/sh73a0.dtsi | 5 +++++
8 files changed, 25 insertions(+), 0 deletions(-)
diff --git a/arch/arm/boot/dts/r8a73a4-ape6evm-reference.dts b/arch/arm/boot/dts/r8a73a4-ape6evm-reference.dts
index 2b49b05..9443e93 100644
--- a/arch/arm/boot/dts/r8a73a4-ape6evm-reference.dts
+++ b/arch/arm/boot/dts/r8a73a4-ape6evm-reference.dts
@@ -62,6 +62,7 @@
};
&i2c5 {
+ status = "okay";
vdd_dvfs: max8973@1b {
compatible = "maxim,max8973";
reg = <0x1b>;
diff --git a/arch/arm/boot/dts/r8a73a4-ape6evm.dts b/arch/arm/boot/dts/r8a73a4-ape6evm.dts
index 72f867e..91436b5 100644
--- a/arch/arm/boot/dts/r8a73a4-ape6evm.dts
+++ b/arch/arm/boot/dts/r8a73a4-ape6evm.dts
@@ -52,6 +52,7 @@
};
&i2c5 {
+ status = "okay";
vdd_dvfs: max8973@1b {
compatible = "maxim,max8973";
reg = <0x1b>;
diff --git a/arch/arm/boot/dts/r8a73a4.dtsi b/arch/arm/boot/dts/r8a73a4.dtsi
index 658fcc5..6048825 100644
--- a/arch/arm/boot/dts/r8a73a4.dtsi
+++ b/arch/arm/boot/dts/r8a73a4.dtsi
@@ -93,6 +93,7 @@
reg = <0 0xe6500000 0 0x428>;
interrupt-parent = <&gic>;
interrupts = <0 174 0x4>;
+ status = "disabled";
};
i2c1: i2c@e6510000 {
@@ -102,6 +103,7 @@
reg = <0 0xe6510000 0 0x428>;
interrupt-parent = <&gic>;
interrupts = <0 175 0x4>;
+ status = "disabled";
};
i2c2: i2c@e6520000 {
@@ -111,6 +113,7 @@
reg = <0 0xe6520000 0 0x428>;
interrupt-parent = <&gic>;
interrupts = <0 176 0x4>;
+ status = "disabled";
};
i2c3: i2c@e6530000 {
@@ -120,6 +123,7 @@
reg = <0 0xe6530000 0 0x428>;
interrupt-parent = <&gic>;
interrupts = <0 177 0x4>;
+ status = "disabled";
};
i2c4: i2c@e6540000 {
@@ -129,6 +133,7 @@
reg = <0 0xe6540000 0 0x428>;
interrupt-parent = <&gic>;
interrupts = <0 178 0x4>;
+ status = "disabled";
};
i2c5: i2c@e60b0000 {
@@ -138,6 +143,7 @@
reg = <0 0xe60b0000 0 0x428>;
interrupt-parent = <&gic>;
interrupts = <0 179 0x4>;
+ status = "disabled";
};
i2c6: i2c@e6550000 {
@@ -147,6 +153,7 @@
reg = <0 0xe6550000 0 0x428>;
interrupt-parent = <&gic>;
interrupts = <0 184 0x4>;
+ status = "disabled";
};
i2c7: i2c@e6560000 {
@@ -156,6 +163,7 @@
reg = <0 0xe6560000 0 0x428>;
interrupt-parent = <&gic>;
interrupts = <0 185 0x4>;
+ status = "disabled";
};
i2c8: i2c@e6570000 {
@@ -165,6 +173,7 @@
reg = <0 0xe6570000 0 0x428>;
interrupt-parent = <&gic>;
interrupts = <0 173 0x4>;
+ status = "disabled";
};
mmcif0: mmcif@ee200000 {
diff --git a/arch/arm/boot/dts/r8a7740-armadillo800eva-reference.dts b/arch/arm/boot/dts/r8a7740-armadillo800eva-reference.dts
index 801442b..8b2aab5 100644
--- a/arch/arm/boot/dts/r8a7740-armadillo800eva-reference.dts
+++ b/arch/arm/boot/dts/r8a7740-armadillo800eva-reference.dts
@@ -62,6 +62,7 @@
};
&i2c0 {
+ status = "okay";
touchscreen: st1232@55 {
compatible = "sitronix,st1232";
reg = <0x55>;
diff --git a/arch/arm/boot/dts/r8a7740.dtsi b/arch/arm/boot/dts/r8a7740.dtsi
index 44d3d52..868bdde 100644
--- a/arch/arm/boot/dts/r8a7740.dtsi
+++ b/arch/arm/boot/dts/r8a7740.dtsi
@@ -131,6 +131,7 @@
0 202 0x4
0 203 0x4
0 204 0x4>;
+ status = "disabled";
};
i2c1: i2c@e6c20000 {
@@ -143,6 +144,7 @@
0 71 0x4
0 72 0x4
0 73 0x4>;
+ status = "disabled";
};
pfc: pfc@e6050000 {
diff --git a/arch/arm/boot/dts/r8a7779.dtsi b/arch/arm/boot/dts/r8a7779.dtsi
index ebbe507..912b3a0 100644
--- a/arch/arm/boot/dts/r8a7779.dtsi
+++ b/arch/arm/boot/dts/r8a7779.dtsi
@@ -156,6 +156,7 @@
reg = <0xffc70000 0x1000>;
interrupt-parent = <&gic>;
interrupts = <0 79 0x4>;
+ status = "disabled";
};
i2c1: i2c@ffc71000 {
@@ -165,6 +166,7 @@
reg = <0xffc71000 0x1000>;
interrupt-parent = <&gic>;
interrupts = <0 82 0x4>;
+ status = "disabled";
};
i2c2: i2c@ffc72000 {
@@ -174,6 +176,7 @@
reg = <0xffc72000 0x1000>;
interrupt-parent = <&gic>;
interrupts = <0 80 0x4>;
+ status = "disabled";
};
i2c3: i2c@ffc73000 {
@@ -183,6 +186,7 @@
reg = <0xffc73000 0x1000>;
interrupt-parent = <&gic>;
interrupts = <0 81 0x4>;
+ status = "disabled";
};
pfc: pfc@fffc0000 {
diff --git a/arch/arm/boot/dts/sh73a0-kzm9g-reference.dts b/arch/arm/boot/dts/sh73a0-kzm9g-reference.dts
index 2122306..8ee06dd 100644
--- a/arch/arm/boot/dts/sh73a0-kzm9g-reference.dts
+++ b/arch/arm/boot/dts/sh73a0-kzm9g-reference.dts
@@ -108,6 +108,7 @@
};
&i2c0 {
+ status = "okay";
as3711@40 {
compatible = "ams,as3711";
reg = <0x40>;
@@ -183,6 +184,7 @@
&i2c3 {
pinctrl-0 = <&i2c3_pins>;
pinctrl-names = "default";
+ status = "okay";
};
&mmcif {
diff --git a/arch/arm/boot/dts/sh73a0.dtsi b/arch/arm/boot/dts/sh73a0.dtsi
index 3955c76..fcf2688 100644
--- a/arch/arm/boot/dts/sh73a0.dtsi
+++ b/arch/arm/boot/dts/sh73a0.dtsi
@@ -135,6 +135,7 @@
0 168 0x4
0 169 0x4
0 170 0x4>;
+ status = "disabled";
};
i2c1: i2c@e6822000 {
@@ -147,6 +148,7 @@
0 52 0x4
0 53 0x4
0 54 0x4>;
+ status = "disabled";
};
i2c2: i2c@e6824000 {
@@ -159,6 +161,7 @@
0 172 0x4
0 173 0x4
0 174 0x4>;
+ status = "disabled";
};
i2c3: i2c@e6826000 {
@@ -171,6 +174,7 @@
0 184 0x4
0 185 0x4
0 186 0x4>;
+ status = "disabled";
};
i2c4: i2c@e6828000 {
@@ -183,6 +187,7 @@
0 188 0x4
0 189 0x4
0 190 0x4>;
+ status = "disabled";
};
mmcif: mmcif@e6bd0000 {
--
1.7.2.5
--
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