clk: meson-axg: pcie: drop the mpll3 clock parent

We found the PCIe driver doesn't really work with
the mpll3 clock which is actually reserved for debug,
So drop it from the mux list.

Fixes: 33b89db68236 ("clk: meson-axg: add clocks required by pcie driver")
Tested-by: Jianxin Qin <jianxin.qin@amlogic.com>
Signed-off-by: Yixun Lan <yixun.lan@amlogic.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>

drivers/clk/meson/axg.c

@@ -730,12 +730,14 @@ static struct clk_regmap axg_pcie_mux = {
 		.offset = HHI_PCIE_PLL_CNTL6,
 		.mask = 0x1,
 		.shift = 2,
+		/* skip the parent mpll3, reserved for debug */
+		.table = (u32[]){ 1 },
 	},
 	.hw.init = &(struct clk_init_data){
 		.name = "pcie_mux",
 		.ops = &clk_regmap_mux_ops,
-		.parent_names = (const char *[]){ "mpll3", "pcie_pll" },
-		.num_parents = 2,
+		.parent_names = (const char *[]){ "pcie_pll" },
+		.num_parents = 1,
 		.flags = CLK_SET_RATE_PARENT,
 	},
 };