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From:   Boris Brezillon <boris.brezillon@bootlin.com>
To:     Wolfram Sang <wsa@the-dreams.de>, linux-i2c@vger.kernel.org,
        Jonathan Corbet <corbet@lwn.net>, linux-doc@vger.kernel.org,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
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        Arkadiusz Golec <agolec@cadence.com>,
        Alan Douglas <adouglas@cadence.com>,
        Bartosz Folta <bfolta@cadence.com>,
        Damian Kos <dkos@cadence.com>,
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        Rafal Ciepiela <rafalc@cadence.com>,
        Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
        Nishanth Menon <nm@ti.com>, Rob Herring <robh+dt@kernel.org>,
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        Mark Rutland <mark.rutland@arm.com>,
        Ian Campbell <ijc+devicetree@hellion.org.uk>,
        Kumar Gala <galak@codeaurora.org>, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org,
        Vitor Soares <Vitor.Soares@synopsys.com>,
        Geert Uytterhoeven <geert@linux-m68k.org>,
        Linus Walleij <linus.walleij@linaro.org>,
        Xiang Lin <Xiang.Lin@synaptics.com>,
        linux-gpio@vger.kernel.org, Sekhar Nori <nsekhar@ti.com>,
        Przemyslaw Gaj <pgaj@cadence.com>,
        Boris Brezillon <boris.brezillon@bootlin.com>
Subject: [PATCH v5 05/10] dt-bindings: i3c: Add macros to help fill I3C/I2C device's reg property
Date:   Fri, 22 Jun 2018 12:49:25 +0200
Message-Id: <20180622104930.32050-6-boris.brezillon@bootlin.com>
In-Reply-To: <20180622104930.32050-1-boris.brezillon@bootlin.com>
References: <20180622104930.32050-1-boris.brezillon@bootlin.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

The reg property of devices connected to an I3C bus have 3 cells, and
filling them manually is not trivial. Provides macros to help doing
that.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Reviewed-by: Rob Herring <robh@kernel.org>
---
Changes in v5:
- none
---
 include/dt-bindings/i3c/i3c.h | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 include/dt-bindings/i3c/i3c.h

diff --git a/include/dt-bindings/i3c/i3c.h b/include/dt-bindings/i3c/i3c.h
new file mode 100644
index 000000000000..97448c546649
--- /dev/null
+++ b/include/dt-bindings/i3c/i3c.h
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2017 Cadence Design Systems Inc.
+ *
+ * Author: Boris Brezillon <boris.brezillon@bootlin.com>
+ */
+
+#ifndef _DT_BINDINGS_I3C_I3C_H
+#define _DT_BINDINGS_I3C_I3C_H
+
+#define IS_I2C_DEV		0x80000000
+
+#define I2C_DEV(addr, lvr)					\
+	(addr) (IS_I2C_DEV | (lvr)) 0x0
+
+#define I3C_PID(manufid, partid, instid, extrainfo)		\
+	((manufid) << 1)					\
+	(((partid) << 16) | ((instid) << 12) | (extrainfo))
+
+#define I3C_DEV_WITH_STATIC_ADDR(addr, manufid, partid,		\
+				 instid, extrainfo)		\
+	(addr) I3C_PID(manufid, partid, instid, extrainfo)
+
+#define I3C_DEV(manufid, partid, instid, extrainfo)		\
+	I3C_DEV_WITH_STATIC_ADDR(0x0, manufid, partid,		\
+				 instid, extrainfo)
+
+#endif
-- 
2.14.1