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lpc32xx_i2c.c

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  • Liam Beguin's avatar
    0f5b461b
    i2c: lpc32xx: Force consistent bus numbering · 0f5b461b
    Liam Beguin authored
    
    Normally, this would probably be done by adding devicetree aliases
    to the main dtsi file for the lpc32xx and using bus->req_seq instead.
    
    Since we want to have consistent i2c numbering, we cannot force the
    bus->req_seq because. If for instance we have 3 buses numbered
    from 0 to 2 with i2c0 enabled, i2c1 disabled and i2c2 enabled;
    i2c2 can be selected using 'i2c dev 1' and 'i2c dev 2' commands
    because a bus can be probed using req_seq or seq interchangeably.
    
    Signed-off-by: default avatarLiam Beguin <lbeguin@tycoint.com>
    Signed-off-by: default avatarSylvain Lemieux <slemieux@tycoint.com>
    0f5b461b
    History
    i2c: lpc32xx: Force consistent bus numbering
    Liam Beguin authored
    
    Normally, this would probably be done by adding devicetree aliases
    to the main dtsi file for the lpc32xx and using bus->req_seq instead.
    
    Since we want to have consistent i2c numbering, we cannot force the
    bus->req_seq because. If for instance we have 3 buses numbered
    from 0 to 2 with i2c0 enabled, i2c1 disabled and i2c2 enabled;
    i2c2 can be selected using 'i2c dev 1' and 'i2c dev 2' commands
    because a bus can be probed using req_seq or seq interchangeably.
    
    Signed-off-by: default avatarLiam Beguin <lbeguin@tycoint.com>
    Signed-off-by: default avatarSylvain Lemieux <slemieux@tycoint.com>