Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751568AbdFFSEw (ORCPT ); Tue, 6 Jun 2017 14:04:52 -0400 Received: from mail-pg0-f54.google.com ([74.125.83.54]:33023 "EHLO mail-pg0-f54.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751484AbdFFSEP (ORCPT ); Tue, 6 Jun 2017 14:04:15 -0400 From: Hoan Tran To: Will Deacon , Mark Rutland , Jonathan Corbet , Tai Nguyen Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, Loc Ho , Hoan Tran Subject: [PATCH v3 1/3] perf: xgene: Parse PMU subnode from the match table Date: Tue, 6 Jun 2017 11:02:24 -0700 Message-Id: <1496772146-11084-2-git-send-email-hotran@apm.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1496772146-11084-1-git-send-email-hotran@apm.com> References: <1496772146-11084-1-git-send-email-hotran@apm.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2203 Lines: 71 This patch parses PMU Subnode from a match table. Signed-off-by: Hoan Tran --- drivers/perf/xgene_pmu.c | 40 ++++++++++++++++++++++++++++++---------- 1 file changed, 30 insertions(+), 10 deletions(-) diff --git a/drivers/perf/xgene_pmu.c b/drivers/perf/xgene_pmu.c index 35b5289..5ffd580 100644 --- a/drivers/perf/xgene_pmu.c +++ b/drivers/perf/xgene_pmu.c @@ -1047,9 +1047,35 @@ xgene_pmu_dev_ctx *acpi_get_pmu_hw_inf(struct xgene_pmu *xgene_pmu, 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; -- 1.9.1