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ARM: tegra: Rename GPU node on Tegra124

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In order to be able to pass DT schema validation, change the GPU nodes'
unit-address to the standard notation. Previously this was using a "0,"
prefix that originated from a time when the top-level device tree node
contained #address-cells = <2>.

Note that this technically breaks backwards-compatibility with certain
older versions of the U-Boot bootloader because early versions used a
hard-coded DT path lookup to find the GPU node and perform some fixups
on it. However, this was changed to a compatible string based lookup in
April 2016, so it's reasonable to expect people to update U-Boot on the
systems that they want to use this updated kernel DTB with.

Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding 2021-12-07 11:03:12 +01:00
parent 63658cbc66
commit 1b5bad01ab
6 changed files with 6 additions and 11 deletions
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2
arch/arm/boot/dts/tegra124-apalis-v1.2.dtsi
View File

@ -57,7 +57,7 @@
};
};
gpu@0,57000000 {
gpu@57000000 {
/*
* Node left disabled on purpose - the bootloader will enable
* it after having set the VPR up

2
arch/arm/boot/dts/tegra124-apalis.dtsi
View File

@ -56,7 +56,7 @@
};
};
gpu@0,57000000 {
gpu@57000000 {
/*
* Node left disabled on purpose - the bootloader will enable
* it after having set the VPR up

2
arch/arm/boot/dts/tegra124-jetson-tk1.dts
View File

@ -72,7 +72,7 @@
status = "okay";
};
gpu@0,57000000 {
gpu@57000000 {
/*
* Node left disabled on purpose - the bootloader will enable
* it after having set the VPR up

2
arch/arm/boot/dts/tegra124-nyan.dtsi
View File

@ -61,7 +61,7 @@
};
};
gpu@0,57000000 {
gpu@57000000 {
status = "okay";
vdd-supply = <&vdd_gpu>;

2
arch/arm/boot/dts/tegra124-venice2.dts
View File

@ -51,7 +51,7 @@
};
};
gpu@0,57000000 {
gpu@57000000 {
/*
* Node left disabled on purpose - the bootloader will enable
* it after having set the VPR up

7
arch/arm/boot/dts/tegra124.dtsi
View File

@ -223,12 +223,7 @@
interrupt-parent = <&gic>;
};
/*
* Please keep the following 0, notation in place as a former mainline
* U-Boot version was looking for that particular notation in order to
* perform required fix-ups on that GPU node.
*/
gpu@0,57000000 {
gpu@57000000 {
compatible = "nvidia,gk20a";
reg = <0x0 0x57000000 0x0 0x01000000>,
<0x0 0x58000000 0x0 0x01000000>;