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authorHans de Goede <hdegoede@redhat.com>2016-09-11 18:29:16 +0200
committerJonathan Cameron <jic23@kernel.org>2016-09-12 20:19:16 +0100
commit1696566f995cfd4ddf3f167b4097cdc83f1458f2 (patch)
tree80389a4bf3ec17120542f7fa1cee3a9630d6c438 /.mailmap
parent7ba4b884b7a890e240a13f5f65d607721e80396a (diff)
iio: accel: mxc6255: Fix chip-id check
The initial commit adding support for the mxc6225 assumed the mxc6225 has a chip-id of 0xe5 based on testing on a single Allwinner A23 tablet with a mxc6225. Testing on a bunch of other Allwinner tablets have shown that the chip-id for the mxc6225 is not constant. A datasheet for the MXC6255 which I've found online says that bits 7 and 6 of the chip-id register are undefined (for the mxc6255), testing on 5 different tablets with a mxc6225 has found the following ids: 0x25, 0x45, 0x65, 0x85, 0xe5. So it seems that for the mxc6225 bits 7, 6 and 5 of the chip-id register are undefined. This commit adjusts the chip-id check so that the mxc6255 driver properly recognizes the mxc6225 in all these tablets. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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