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authorHoan Tran <hotran@apm.com>2017-06-22 19:26:03 +0100
committerWill Deacon <will.deacon@arm.com>2017-06-22 19:30:09 +0100
commit838955e2a3c010aff9089fd705ae2cd5638cdee8 (patch)
tree7fc402d06f77dd1431e48995f55aea1197d590a8 /drivers/perf
parentbddb9b68d3fb0dfbd75715bce6160c40d4dae233 (diff)
downloadlinux-next-838955e2a3c010aff9089fd705ae2cd5638cdee8.tar.gz
perf: xgene: Parse PMU subnode from the match table
This patch parses PMU Subnode from a match table. Signed-off-by: Hoan Tran <hotran@apm.com> Signed-off-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'drivers/perf')
-rw-r--r--drivers/perf/xgene_pmu.c40
1 files changed, 30 insertions, 10 deletions
diff --git a/drivers/perf/xgene_pmu.c b/drivers/perf/xgene_pmu.c
index 35b5289bc5da..5ffd58028a62 100644
--- a/drivers/perf/xgene_pmu.c
+++ b/drivers/perf/xgene_pmu.c
@@ -1047,9 +1047,35 @@ err:
return NULL;
}
+static const struct acpi_device_id xgene_pmu_acpi_type_match[] = {
+ {"APMC0D5D", PMU_TYPE_L3C},
+ {"APMC0D5E", PMU_TYPE_IOB},
+ {"APMC0D5F", PMU_TYPE_MCB},
+ {"APMC0D60", PMU_TYPE_MC},
+ {},
+};
+
+static const struct acpi_device_id *xgene_pmu_acpi_match_type(
+ const struct acpi_device_id *ids,
+ struct acpi_device *adev)
+{
+ const struct acpi_device_id *match_id = NULL;
+ const struct acpi_device_id *id;
+
+ for (id = ids; id->id[0] || id->cls; id++) {
+ if (!acpi_match_device_ids(adev, id))
+ match_id = id;
+ else if (match_id)
+ break;
+ }
+
+ return match_id;
+}
+
static acpi_status acpi_pmu_dev_add(acpi_handle handle, u32 level,
void *data, void **return_value)
{
+ const struct acpi_device_id *acpi_id;
struct xgene_pmu *xgene_pmu = data;
struct xgene_pmu_dev_ctx *ctx;
struct acpi_device *adev;
@@ -1059,17 +1085,11 @@ static acpi_status acpi_pmu_dev_add(acpi_handle handle, u32 level,
if (acpi_bus_get_status(adev) || !adev->status.present)
return AE_OK;
- if (!strcmp(acpi_device_hid(adev), "APMC0D5D"))
- ctx = acpi_get_pmu_hw_inf(xgene_pmu, adev, PMU_TYPE_L3C);
- else if (!strcmp(acpi_device_hid(adev), "APMC0D5E"))
- ctx = acpi_get_pmu_hw_inf(xgene_pmu, adev, PMU_TYPE_IOB);
- else if (!strcmp(acpi_device_hid(adev), "APMC0D5F"))
- ctx = acpi_get_pmu_hw_inf(xgene_pmu, adev, PMU_TYPE_MCB);
- else if (!strcmp(acpi_device_hid(adev), "APMC0D60"))
- ctx = acpi_get_pmu_hw_inf(xgene_pmu, adev, PMU_TYPE_MC);
- else
- ctx = NULL;
+ acpi_id = xgene_pmu_acpi_match_type(xgene_pmu_acpi_type_match, adev);
+ if (!acpi_id)
+ return AE_OK;
+ ctx = acpi_get_pmu_hw_inf(xgene_pmu, adev, (u32)acpi_id->driver_data);
if (!ctx)
return AE_OK;