phy: qcom-qmp-combo: generate pipe clock name

In preparation for supporting devicetree bindings which do not use child
nodes, generate also the USB3 pipe clock name based on the platform
device name as is done for the DP clocks.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221121085058.31213-6-johan+linaro@kernel.orgSigned-off-by: Vinod Koul <vkoul@kernel.org>

drivers/phy/qualcomm/phy-qcom-qmp-combo.c

@@ -2247,18 +2247,15 @@ static int phy_pipe_clk_register(struct qmp_combo *qmp, struct device_node *np)
 {
 	struct clk_fixed_rate *fixed;
 	struct clk_init_data init = { };
+	char name[64];
 	int ret;
 
-	ret = of_property_read_string(np, "clock-output-names", &init.name);
-	if (ret) {
-		dev_err(qmp->dev, "%pOFn: No clock-output-names\n", np);
-		return ret;
-	}
-
 	fixed = devm_kzalloc(qmp->dev, sizeof(*fixed), GFP_KERNEL);
 	if (!fixed)
 		return -ENOMEM;
 
+	snprintf(name, sizeof(name), "%s::pipe_clk", dev_name(qmp->dev));
+	init.name = name;
 	init.ops = &clk_fixed_rate_ops;
 
 	/* controllers using QMP phys use 125MHz pipe clock interface */