Messages in this thread | | | Date | Wed, 15 Apr 2020 09:59:11 +0200 | From | Wolfram Sang <> | Subject | Re: [RFC PATCH v2 2/6] i2c: allow DT nodes without 'compatible' |
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> As I said in the reply to v1, I think we should reserve addresses also > when there is a compatible string but no matching driver, but this is > another story and can be handled separately.
Unless I misunderstand you, I think they do already. Note that only 'i2cdetect' shows a device as busy *IFF* there is a driver bound to it. The internal 'i2c_check_addr_busy' does not care about a driver being bound. You can check this by trying to use i2c_new_ancillary_device() with an address which is already described in DT but which driver is disabled.
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