clk: qcom: Add xo dummy clk on msm8998

We have this dummy factor clk in place to workaround a missing rpm clk
driver that can manage the XO clk state. Add it in to match what we do
on msm8996.

Cc: Jeffrey Hugo <jhugo@codeaurora.org>
Cc: Marc Gonzalez <marc.w.gonzalez@free.fr>
Tested-by: Jeffrey Hugo <jhugo@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

drivers/clk/qcom/gcc-msm8998.c

@@ -117,6 +117,17 @@ static const char * const gcc_parent_names_5[] = {
 	"core_bi_pll_test_se",
 };
 
+static struct clk_fixed_factor xo = {
+	.mult = 1,
+	.div = 1,
+	.hw.init = &(struct clk_init_data){
+		.name = "xo",
+		.parent_names = (const char *[]){ "xo_board" },
+		.num_parents = 1,
+		.ops = &clk_fixed_factor_ops,
+	},
+};
+
 static struct pll_vco fabia_vco[] = {
 	{ 250000000, 2000000000, 0 },
 	{ 125000000, 1000000000, 1 },
@@ -2798,6 +2809,10 @@ static int gcc_msm8998_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
+	ret = devm_clk_hw_register(&pdev->dev, &xo.hw);
+	if (ret)
+		return ret;
+
 	return qcom_cc_really_probe(pdev, &gcc_msm8998_desc, regmap);
 }