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authorTan, Raymond <raymond.tan@intel.com>2014-09-03 06:41:38 +0400
committerWolfram Sang <wsa@the-dreams.de>2014-09-30 00:41:17 +0400
commit4bcfda09936da647b0a3b49d5dcb3c6c6ebb0395 (patch)
tree6a838ea3032bcfb468308597bab573952a88a692 /include/linux/platform_data/i2c-designware.h
parent8e5f6b2a289c4374456fb785900b0b7445b719e6 (diff)
downloadlinux-4bcfda09936da647b0a3b49d5dcb3c6c6ebb0395.tar.xz
i2c: designware: add support of platform data to set I2C mode
Use the platform data to set the clk_freq when there is no DT configuration available. The clk_freq in turn will determine the I2C speed mode. In Quark, there is currently no other configuration mechanism other than board files. Signed-off-by: Raymond Tan <raymond.tan@intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: Hock Leong Kweh <hock.leong.kweh@intel.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'include/linux/platform_data/i2c-designware.h')
-rw-r--r--include/linux/platform_data/i2c-designware.h21
1 files changed, 21 insertions, 0 deletions
diff --git a/include/linux/platform_data/i2c-designware.h b/include/linux/platform_data/i2c-designware.h
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+++ b/include/linux/platform_data/i2c-designware.h
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+/*
+ * Copyright(c) 2014 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef I2C_DESIGNWARE_H
+#define I2C_DESIGNWARE_H
+
+struct dw_i2c_platform_data {
+ unsigned int i2c_scl_freq;
+};
+
+#endif