mediatek: mt7622: fix SATA on BPi-R64

A commit which made their way into Linux stable down to 5.15 broke the
SATA support on the BPi-R64.

Fix this by importing a (still pending) patch re-adding the 'syscon'
compatible to the pciesys clock-controller which also contains phy-mode
bits referenced by the ahci_mtk driver expecting to access them using
syscon_regmap_lookup_by_phandle().

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
(cherry picked from commit 69890e16b37d59b55ba64633522c727f957cb2fd)

diff --git a/target/linux/mediatek/patches-5.15/116-arm64-dts-mediatek-mt7622-readd-syscon-to-pciesys-no.patch b/target/linux/mediatek/patches-5.15/116-arm64-dts-mediatek-mt7622-readd-syscon-to-pciesys-no.patch
new file mode 100644 (file)
index 0000000..5689997
--- /dev/null
+++ b/target/linux/mediatek/patches-5.15/116-arm64-dts-mediatek-mt7622-readd-syscon-to-pciesys-no.patch
@@ -0,0 +1,33 @@
+From 98bc223d174c7f544e8f6c4f0caa8fa144f2f4dc Mon Sep 17 00:00:00 2001
+From: Christian Marangi <ansuelsmth@gmail.com>
+Date: Fri, 28 Jun 2024 12:55:40 +0200
+Subject: [PATCH 2/2] arm64: dts: mediatek: mt7622: readd syscon to pciesys
+ node
+
+Sata node reference the pciesys with the property mediatek,phy-node
+and that is used as a syscon to access the pciesys regs.
+
+Readd the syscon compatible to pciesys node to restore correct
+functionality of the SATA interface.
+
+Fixes: 3ba5a6159434 ("arm64: dts: mediatek: mt7622: fix clock controllers")
+Reported-by: Frank Wunderlich <frank-w@public-files.de>
+Co-developed-by: Frank Wunderlich <frank-w@public-files.de>
+Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
+Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
+Cc: stable@vger.kernel.org
+---
+ arch/arm64/boot/dts/mediatek/mt7622.dtsi | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/arch/arm64/boot/dts/mediatek/mt7622.dtsi
++++ b/arch/arm64/boot/dts/mediatek/mt7622.dtsi
+@@ -779,7 +779,7 @@
+       };
+ 
+       pciesys: clock-controller@1a100800 {
+-              compatible = "mediatek,mt7622-pciesys";
++              compatible = "mediatek,mt7622-pciesys", "syscon";
+               reg = <0 0x1a100800 0 0x1000>;
+               #clock-cells = <1>;
+               #reset-cells = <1>;