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

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

Change-Id: I87073bb4a9c334d8c8077ddfd807c08325ee3394
Signed-off-by: Taniya Das <tdas@codeaurora.org>
This commit is contained in:
Taniya Das 2020-04-15 10:06:33 +05:30
parent 2b71825e9c
commit a208221c8c
1 changed files with 12 additions and 3 deletions
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15
drivers/cpufreq/qcom-cpufreq-hw-debug.c
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@ -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 },
{}