diff options
| -rw-r--r-- | drivers/hwtracing/coresight/coresight-trbe.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/hwtracing/coresight/coresight-trbe.c b/drivers/hwtracing/coresight/coresight-trbe.c index e20c1c6acc73..97b9e72965e6 100644 --- a/drivers/hwtracing/coresight/coresight-trbe.c +++ b/drivers/hwtracing/coresight/coresight-trbe.c @@ -1253,8 +1253,18 @@ static void arm_trbe_register_coresight_cpu(struct trbe_drvdata *drvdata, int cp desc.name = devm_kasprintf(dev, GFP_KERNEL, "trbe%d", cpu); if (!desc.name) goto cpu_clear; - - desc.pdata = coresight_get_platform_data(dev); + /* + * TRBE coresight devices do not need regular connections + * information, as the paths get built between all percpu + * source and their respective percpu sink devices. Though + * coresight_register() expect device connections via the + * platform_data, which TRBE devices do not have. As they + * are not real ACPI devices, coresight_get_platform_data() + * ends up failing. Instead let's allocate a dummy zeroed + * coresight_platform_data structure and assign that back + * into the device for that purpose. + */ + desc.pdata = devm_kzalloc(dev, sizeof(*desc.pdata), GFP_KERNEL); if (IS_ERR(desc.pdata)) goto cpu_clear; |