[PATCH 1/5] arm64: dts: rockchip: fix GMAC clock parents on 9Tripod X3568 v4

[Coia Prant <coiaprant@gmail.com>]

Both GMAC nodes list SCLK_GMACx in assigned-clocks, but only
SCLK_GMACx_RX_TX gets a parent in assigned-clock-parents. SCLK_GMACx
therefore keeps whatever parent the bootloader or the hardware reset
left, which may or may not be the internal CLK_MACx_2TOP.

Add CLK_MACx_2TOP as the parent of SCLK_GMACx explicitly, so the GMAC
main clock always comes from the internal clock source and does not
depend on the bootloader state. The rate assignment is unchanged:
SCLK_GMACx_RX_TX stays at 0 (managed at runtime by
rk_set_clk_tx_rate()), SCLK_GMACx stays at 125 MHz.

Fixes: 156a530ed5ed ("arm64: dts: rockchip: Add devicetree for the 9Tripod X3568 v4")
Signed-off-by: Coia Prant <coiaprant@gmail.com>
---
 arch/arm64/boot/dts/rockchip/rk3568-9tripod-x3568-v4.dts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3568-9tripod-x3568-v4.dts b/arch/arm64/boot/dts/rockchip/rk3568-9tripod-x3568-v4.dts
index 4903e32d0ead0..d94bc34a31e67 100644
--- a/arch/arm64/boot/dts/rockchip/rk3568-9tripod-x3568-v4.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3568-9tripod-x3568-v4.dts
@@ -268,7 +268,7 @@ &cpu3 {
 
 &gmac0 {
 	assigned-clocks = <&cru SCLK_GMAC0_RX_TX>, <&cru SCLK_GMAC0>;
-	assigned-clock-parents = <&cru SCLK_GMAC0_RGMII_SPEED>;
+	assigned-clock-parents = <&cru SCLK_GMAC0_RGMII_SPEED>, <&cru CLK_MAC0_2TOP>;
 	assigned-clock-rates = <0>, <125000000>;
 	clock_in_out = "output";
 	pinctrl-names = "default";
@@ -284,7 +284,7 @@ &gmac0_rgmii_clk
 
 &gmac1 {
 	assigned-clocks = <&cru SCLK_GMAC1_RX_TX>, <&cru SCLK_GMAC1>;
-	assigned-clock-parents = <&cru SCLK_GMAC1_RGMII_SPEED>;
+	assigned-clock-parents = <&cru SCLK_GMAC1_RGMII_SPEED>, <&cru CLK_MAC1_2TOP>;
 	assigned-clock-rates = <0>, <125000000>;
 	clock_in_out = "output";
 	pinctrl-names = "default";
-- 
2.47.3