ARM64: dts: meson: fix clock source of the pclk for UART_AO

>From the hardware perspective, the actual pclk of the AO uarts
is the corresponding clkc_ao uart gate, not the main clock controller clk81.
This was not problem so far, because the uart_gate had
the CLK_IGNORE_UNUSED flag, which kept the gate open.

We plan to remove the CLK_IGNORE_UNUSED flag in another patch,
but before doing that, we need to fix the clock in the DTS file.
Signed-off-by: NYixun Lan <yixun.lan@amlogic.com>
Signed-off-by: NKevin Hilman <khilman@baylibre.com>

arch/arm64/boot/dts/amlogic/meson-axg.dtsi

@@ -1174,7 +1174,7 @@
 				compatible = "amlogic,meson-gx-uart", "amlogic,meson-ao-uart";
 				reg = <0x0 0x3000 0x0 0x18>;
 				interrupts = <GIC_SPI 193 IRQ_TYPE_EDGE_RISING>;
-				clocks = <&xtal>, <&clkc CLKID_CLK81>, <&xtal>;
+				clocks = <&xtal>, <&clkc_AO CLKID_AO_UART1>, <&xtal>;
 				clock-names = "xtal", "pclk", "baud";
 				status = "disabled";
 			};
@@ -1183,7 +1183,7 @@
 				compatible = "amlogic,meson-gx-uart", "amlogic,meson-ao-uart";
 				reg = <0x0 0x4000 0x0 0x18>;
 				interrupts = <GIC_SPI 197 IRQ_TYPE_EDGE_RISING>;
-				clocks = <&xtal>, <&clkc CLKID_CLK81>, <&xtal>;
+				clocks = <&xtal>, <&clkc_AO CLKID_AO_UART2>, <&xtal>;
 				clock-names = "xtal", "pclk", "baud";
 				status = "disabled";
 			};

arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi

@@ -751,12 +751,12 @@
 };
 
 &uart_AO {
-	clocks = <&xtal>, <&clkc CLKID_CLK81>, <&xtal>;
+	clocks = <&xtal>, <&clkc_AO CLKID_AO_UART1>, <&xtal>;
 	clock-names = "xtal", "pclk", "baud";
 };
 
 &uart_AO_B {
-	clocks = <&xtal>, <&clkc CLKID_CLK81>, <&xtal>;
+	clocks = <&xtal>, <&clkc_AO CLKID_AO_UART2>, <&xtal>;
 	clock-names = "xtal", "pclk", "baud";
 };
 

arch/arm64/boot/dts/amlogic/meson-gxl.dtsi

@@ -760,12 +760,12 @@
 };
 
 &uart_AO {
-	clocks = <&xtal>, <&clkc CLKID_CLK81>, <&xtal>;
+	clocks = <&xtal>, <&clkc_AO CLKID_AO_UART1>, <&xtal>;
 	clock-names = "xtal", "pclk", "baud";
 };
 
 &uart_AO_B {
-	clocks = <&xtal>, <&clkc CLKID_CLK81>, <&xtal>;
+	clocks = <&xtal>, <&clkc_AO CLKID_AO_UART2>, <&xtal>;
 	clock-names = "xtal", "pclk", "baud";
 };