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There is sometimes a need for the ocores driver to add devices to the bus when installed. i2c_register_board_info can not always be used, because the I2C devices are not known at an early state, they could for instance be connected on a I2C bus on a PCI device which has the Open Cores IP. i2c_new_device can not be used in all cases either since the resulting bus nummer might be unknown. The solution is the pass a list of I2C devices in the platform data to the Open Cores driver. This is useful for MFD drivers. Signed-off-by: Richard Röjfors <richard.rojfors.ext@mocean-labs.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
21 lines
653 B
C
21 lines
653 B
C
/*
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* i2c-ocores.h - definitions for the i2c-ocores interface
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*
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* Peter Korsgaard <jacmet@sunsite.dk>
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*
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* This file is licensed under the terms of the GNU General Public License
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* version 2. This program is licensed "as is" without any warranty of any
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* kind, whether express or implied.
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*/
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#ifndef _LINUX_I2C_OCORES_H
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#define _LINUX_I2C_OCORES_H
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struct ocores_i2c_platform_data {
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u32 regstep; /* distance between registers */
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u32 clock_khz; /* input clock in kHz */
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u8 num_devices; /* number of devices in the devices list */
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struct i2c_board_info const *devices; /* devices connected to the bus */
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};
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#endif /* _LINUX_I2C_OCORES_H */
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