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mediatek: fix broken PCIe caused by update to 5.15.158

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The patch "710-pci-pcie-mediatek-add-support-for-coherent-DMA.patch"
makes use of "syscon_regmap_lookup_by_phandle" which requires that
"syscon" be in the compatible list.

Without this patch, PCIe probe will fail with the following error:

[    1.287467] mtk-pcie 1a143000.pcie: host bridge /pcie@1a143000 ranges:
[    1.294019] mtk-pcie 1a143000.pcie: Parsing ranges property...
[    1.299901] mtk-pcie 1a143000.pcie:      MEM 0x0020000000..0x0027ffffff -> 0x0020000000
[    1.307954] mtk-pcie 1a143000.pcie: missing hifsys node
[    1.313185] mtk-pcie: probe of 1a143000.pcie failed with error -22

Fixes: 01c58a0d2a ("kernel: bump 5.15 to 5.15.158")
Signed-off-by: Rany Hany <rany_hany@riseup.net>
(cherry picked from commit 8607372b41)
This commit is contained in:
Rany Hany 2024-05-06 01:39:58 +03:00 • committed by Hauke Mehrtens
parent 0621d89c62
commit 3f1b60ad40
1 changed files with 9 additions and 0 deletions
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9
target/linux/mediatek/patches-5.10/710-pci-pcie-mediatek-add-support-for-coherent-DMA.patch
View file

@ -44,6 +44,15 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
slot1: pcie@1,0 {
reg = <0x0800 0 0 0 0>;
@@ -930,7 +936,7 @@
};
hifsys: clock-controller@1af00000 {
- compatible = "mediatek,mt7622-hifsys";
+ compatible = "mediatek,mt7622-hifsys", "syscon";
reg = <0 0x1af00000 0 0x70>;
#clock-cells = <1>;
};
--- a/drivers/pci/controller/pcie-mediatek.c
+++ b/drivers/pci/controller/pcie-mediatek.c
@@ -20,6 +20,7 @@