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Commit a208221c authored by Taniya Das's avatar Taniya Das
Browse files

cpufreq: qcom-cpufreq-hw: Add support for Debug for CPUFREQ HW 



Add the new compatible to allow the debugfs to be created and list the
required cpufreq hardware registers.

Change-Id: I87073bb4a9c334d8c8077ddfd807c08325ee3394
Signed-off-by: default avatarTaniya Das <tdas@codeaurora.org>
parent 2b71825e

drivers/cpufreq/qcom-cpufreq-hw-debug.c

+12 −3
Original line number Diff line number Diff line
@@ -489,6 +489,9 @@ static int cpufreq_get_hwregs(struct platform_device *pdev) 
		return -ENOMEM;



	prop = of_find_property(pdev->dev.of_node, "qcom,freq-hw-domain", NULL);

	if (!prop)

		return -EINVAL;



	hw_regs->domain_cnt = prop->length / (2 * sizeof(prop->length));



	for (i = 0; i < hw_regs->domain_cnt; i++) {
@@ -520,7 +523,7 @@ static int enable_cpufreq_hw_trace_debug(struct platform_device *pdev, 
{

	struct resource *res;

	void *base;

	int ret;

	int ret, debug_only, epss_debug_only;



	ret = cpufreq_get_hwregs(pdev);

	if (ret < 0) {
@@ -538,8 +541,12 @@ static int enable_cpufreq_hw_trace_debug(struct platform_device *pdev, 
		hw_regs->debugfs_base, NULL, &cpufreq_debug_register_fops))

		goto debugfs_fail;



	if (!is_secure || of_device_is_compatible(pdev->dev.of_node,

						"qcom,cpufreq-hw-epss-debug"))

	debug_only = of_device_is_compatible(pdev->dev.of_node,

				"qcom,cpufreq-hw-debug");

	epss_debug_only = of_device_is_compatible(pdev->dev.of_node,

				"qcom,cpufreq-hw-epss-debug");



	if (!is_secure || epss_debug_only || debug_only)

		return 0;



	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "domain-top");
@@ -594,6 +601,8 @@ static int qcom_cpufreq_hw_debug_remove(struct platform_device *pdev) 
static const struct of_device_id qcom_cpufreq_hw_debug_trace_match[] = {

	{ .compatible = "qcom,cpufreq-hw-debug-trace",

					.data = &cpufreq_qcom_std_data },

	{ .compatible = "qcom,cpufreq-hw-debug",

					.data = &cpufreq_qcom_std_data },

	{ .compatible = "qcom,cpufreq-hw-epss-debug",

					.data = &cpufreq_qcom_std_epss_data },

	{}