linux-kernel - [PATCH 1/3] include: dt-bindings: add Performance Monitoring Unit for Exynos

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Date:   Wed, 17 Apr 2019 09:48:06 +0200
From:   Lukasz Luba <l.luba@...tner.samsung.com>
To:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-pm@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Cc:     b.zolnierkie@...sung.com, krzk@...nel.org, robh+dt@...nel.org,
        mark.rutland@....com, cw00.choi@...sung.com,
        kyungmin.park@...sung.com, m.szyprowski@...sung.com,
        s.nawrocki@...sung.com, myungjoo.ham@...sung.com, kgene@...nel.org,
        l.luba@...tner.samsung.com
Subject: [PATCH 1/3] include: dt-bindings: add Performance Monitoring Unit
 for Exynos

This patch add support of a new feature which can be used in DT:
Performance Monitoring Unit with defined event data type.
In this patch the event data types are defined for Exynos PPMU.
The patch also updates the MAINTAINERS file accordingly.

Signed-off-by: Lukasz Luba <l.luba@...tner.samsung.com>
---
 MAINTAINERS                           |  5 +++++
 include/dt-bindings/pmu/exynos_ppmu.h | 24 ++++++++++++++++++++++++
 2 files changed, 29 insertions(+)
 create mode 100644 include/dt-bindings/pmu/exynos_ppmu.h

diff --git a/MAINTAINERS b/MAINTAINERS
index 3671fde..f4aac78 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -12376,6 +12376,11 @@ L:	linux-scsi@...r.kernel.org
 S:	Supported
 F:	drivers/scsi/pm8001/
 
+PMU EXYNOS DT BINDINGS
+M:	Lukasz Luba <l.luba@...tner.samsung.com>
+S:	Maintained
+F:	include/dt-bindings/pmu/exynos_ppmu.h
+
 PNP SUPPORT
 M:	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>
 S:	Maintained
diff --git a/include/dt-bindings/pmu/exynos_ppmu.h b/include/dt-bindings/pmu/exynos_ppmu.h
new file mode 100644
index 0000000..a6971eb
--- /dev/null
+++ b/include/dt-bindings/pmu/exynos_ppmu.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Samsung Exynos PPMU event types for counting in regs
+ *
+ * Copyright (c) 2019, Samsung
+ * Author: Lukasz Luba <l.luba@...tner.samsung.com>
+ */
+
+#ifndef __DT_BINDINGS_PMU_EXYNOS_PPMU_H
+#define __DT_BINDINGS_PMU_EXYNOS_PPMU_H
+
+
+#define PPMU_RO_BUSY_CYCLE_CNT		0x0
+#define PPMU_WO_BUSY_CYCLE_CNT		0x1
+#define PPMU_RW_BUSY_CYCLE_CNT		0x2
+#define PPMU_RO_REQUEST_CNT		0x3
+#define PPMU_WO_REQUEST_CNT		0x4
+#define PPMU_RO_DATA_CNT		0x5
+#define PPMU_WO_DATA_CNT		0x6
+#define PPMU_RO_LATENCY			0x12
+#define PPMU_WO_LATENCY			0x16
+#define PPMU_V2_EVT3_RW_DATA_CNT	0x22
+
+#endif
-- 
2.7.4