[PATCH 4/5] arm64: dts: rockchip: fix GMAC clock parent on Photonicat

[Coia Prant]

The RGMII WAN port on the Ariaboard Photonicat uses SCLK_GMAC1 as the
GMAC main clock and SCLK_GMAC1_RX_TX as the RGMII speed clock. Only the
parent of SCLK_GMAC1_RX_TX is set, so SCLK_GMAC1 keeps whatever parent
the bootloader or the hardware reset left.

Set the parent of SCLK_GMAC1 to CLK_MAC1_2TOP explicitly, so the GMAC
main clock always uses the internal source and does not depend on the
bootloader state. The rate assignment is unchanged: SCLK_GMAC1_RX_TX
keeps its rate unset, SCLK_GMAC1 stays at 125 MHz.

Fixes: ba124e06ce7b ("arm64: dts: rockchip: add dts for Ariaboard Photonicat RK3568")
Signed-off-by: Coia Prant <coiaprant@xxxxxxxxx>
---
 arch/arm64/boot/dts/rockchip/rk3568-photonicat.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3568-photonicat.dts b/arch/arm64/boot/dts/rockchip/rk3568-photonicat.dts
index b719d5b661c43..7e0a2ab829209 100644
--- a/arch/arm64/boot/dts/rockchip/rk3568-photonicat.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3568-photonicat.dts
@@ -285,7 +285,7 @@ &gmac0 {
 /* Motorcomm YT8521SC WAN port */
 &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";
 	phy-handle = <&rgmii_phy>;
-- 
2.47.3