Merge "qcom: mpm-of: read clock name from dts file"

	to the register that triggers a interrupt to the RPM.

- reg-names: "vmpm" - string to identify the shared memory space region

	     "ipc" - string to identify the register that triggers a interrupt

- clocks: clock identifers used by clock driver while looking up mpm clocks.

- clock-names: name of the clock used by mpm driver.

- qcom,ipc-bit-offset: The bit to set in the ipc register that triggers a interrupt

	to the RPM

- qcom,gic-parent: phandle to the gic interrupt controller

		    <0xfa006000 0x1000>;   /* MSM_APCS_GCC_BASE 4K*/

		reg-names = "vmpm", "ipc"

			interrupts = <0 171 1>;

		clocks = <&clock_rpm clk_xo_lpm_clk>;

		clock-names = "xo";

		qcom,ipc-bit-offset = <0>;

	struct resource *res = NULL;

	int offset, ret;

	struct msm_mpm_device_data *dev = &msm_mpm_dev_data;

	const char *clk_name;

	char *key;

	if (msm_mpm_initialized & MSM_MPM_DEVICE_PROBED) {

		pr_warn("MPM device probed multiple times\n");

		return 0;

	}

	xo_clk = devm_clk_get(&pdev->dev, "xo");

	key = "clock-names";

	ret = of_property_read_string(pdev->dev.of_node, key, &clk_name);

	if (ret) {

		pr_err("%s(): Cannot read clock name%s\n", __func__, key);

		return -EINVAL;

	}

	xo_clk = devm_clk_get(&pdev->dev, clk_name);

	if (IS_ERR(xo_clk)) {

		pr_err("%s(): Cannot get clk resource for XO\n", __func__);