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i2c: OF helpers for the i2c API

PATCH3/7 Jochen Friedrich 2 participants 3 messages Apr 11, 2008

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Jochen Friedrich

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#0 lore raw

This patch implements various helpers to support OF bindings for the i2c API.

Signed-off-by Jochen Friedrich <[email protected]>
---
 drivers/of/Kconfig     |    6 +++
 drivers/of/Makefile    |    1 +
 drivers/of/i2c.c       |  115 ++++++++++++++++++++++++++++++++++++++++++++++++
 include/linux/of_i2c.h |   24 ++++++++++
 4 files changed, 146 insertions(+), 0 deletions(-)
 create mode 100644 drivers/of/i2c.c
 create mode 100644 include/linux/of_i2c.h
drivers/of/Kconfig +6 -0
index c03072b..3cff449 100644
@@ -1,3 +1,9 @@
 config OF_DEVICE
 	def_bool y
 	depends on OF && (SPARC || PPC_OF)
+
+config OF_I2C
+	def_bool y
+	depends on OF && PPC_OF && I2C
+	help
+	  OpenFirmware I2C accessors
drivers/of/Makefile +1 -0
index ab9be5d..655b982 100644
@@ -1,2 +1,3 @@
 obj-y = base.o
 obj-$(CONFIG_OF_DEVICE) += device.o platform.o
+obj-$(CONFIG_OF_I2C)	+= i2c.o
drivers/of/i2c.c new file +115 -0

115 lines not on this page · raw message

include/linux/of_i2c.h new file +24 -0
new file mode 100644
index 0000000..2e5a967
@@ -0,0 +1,24 @@
+/*
+ * Generic I2C API implementation for PowerPC.
+ *
+ * Copyright (c) 2008 Jochen Friedrich <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef __LINUX_OF_I2C_H
+#define __LINUX_OF_I2C_H
+
+#include <linux/i2c.h>
+
+#ifdef CONFIG_OF_I2C
+
+void of_register_i2c_devices(struct i2c_adapter *adap,
+			     struct device_node *adap_node);
+
+#endif /* CONFIG_OF_I2C */
+
+#endif /* __LINUX_OF_I2C_H */
Signature · 1 line
1.5.4.5
#1 lore raw

From: Jochen Friedrich <[email protected]>
Date: Fri, 11 Apr 2008 16:09:17 +0200

drivers/of/Kconfig line 9

Quoted 6 lines
drivers/of/Kconfig +6 -0
+
+config OF_I2C
+	def_bool y
+	depends on OF && PPC_OF && I2C
+	help
+	  OpenFirmware I2C accessors

I wouldn't mind trying to use this infrastructure on sparc64, and I don't see any powerpc specific interfaces being invoked, so if you could remove the PPC_OF requirement I'd appreciate it.

Thanks.

author
#2 lore raw
Quoted 4 lines · David Miller

I wouldn't mind trying to use this infrastructure on sparc64, and I don't see any powerpc specific interfaces being invoked, so if you could remove the PPC_OF requirement I'd appreciate it.

I've resenf the patch without the dependency on PPC_OF.

Thanks for the comment.
Jochen