Commit under Fixes added the 'idle-states' property for SERDES4 lane muxes
without defining the corresponding register offsets and masks for it in the
'mux-reg-masks' property within the 'serdes_ln_ctrl' node.
Fix this.
Fixes: 7287d423f138 ("arm64: dts: ti: k3-j784s4-main: Add system controller and SERDES lane mux")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Siddharth Vadapalli <s-vadapalli@xxxxxx>
---
Patch is based on commit
76544811c850 Merge tag 'drm-fixes-2025-02-28' of https://gitlab.freedesktop.org/drm/kernel
of the master branch of Mainline Linux.
v1:
https://patchwork.kernel.org/project/linux-arm-kernel/patch/20250227061643.144026-1-s-vadapalli@xxxxxx/
Changes since v1:
- Updated offsets to begin from 0x40 instead of 0x30. This is because
SERDES3 is not present in J784S4.
Regards,
Siddharth.
arch/arm64/boot/dts/ti/k3-j784s4-j742s2-main-common.dtsi | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/ti/k3-j784s4-j742s2-main-common.dtsi b/arch/arm64/boot/dts/ti/k3-j784s4-j742s2-main-common.dtsi
index 83bbf94b58d1..51cb8f3fd1c8 100644
--- a/arch/arm64/boot/dts/ti/k3-j784s4-j742s2-main-common.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j784s4-j742s2-main-common.dtsi
@@ -84,7 +84,9 @@ serdes_ln_ctrl: mux-controller@4080 {
<0x10 0x3>, <0x14 0x3>, /* SERDES1 lane0/1 select */
<0x18 0x3>, <0x1c 0x3>, /* SERDES1 lane2/3 select */
<0x20 0x3>, <0x24 0x3>, /* SERDES2 lane0/1 select */
- <0x28 0x3>, <0x2c 0x3>; /* SERDES2 lane2/3 select */
+ <0x28 0x3>, <0x2c 0x3>, /* SERDES2 lane2/3 select */
+ <0x40 0x3>, <0x44 0x3>, /* SERDES4 lane0/1 select */
+ <0x48 0x3>, <0x4c 0x3>; /* SERDES4 lane2/3 select */
idle-states = <J784S4_SERDES0_LANE0_PCIE1_LANE0>,
<J784S4_SERDES0_LANE1_PCIE1_LANE1>,
<J784S4_SERDES0_LANE2_IP3_UNUSED>,
--
2.34.1
