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authorMark A. Greer <mgreer@animalcreek.com>2015-04-24 10:37:22 -0700
committerSamuel Ortiz <sameo@linux.intel.com>2015-06-08 23:16:31 +0200
commitab714817d7e891608d31f6996b1e4c43cf2bf342 (patch)
treeeedd49ad74b3e1e3c046bbc865a42d569af8d00f /drivers/isdn
parentd96097e03f5155115542d42580b1439cafdb6088 (diff)
downloadlinux-ab714817d7e891608d31f6996b1e4c43cf2bf342.tar.bz2
NFC: trf7970a: Handle extra byte in response to Type 5 RMB commands
The current versions of the trf7970a has an erratum where it returns an extra byte in the response to 'Read Multiple Block' (RMB) commands. This command is issued to Type 5 tags (i.e., ISO/IEC 15693 tags) by the neard daemon. To handle this, define a new Device Tree property, 't5t-rmb-extra-byte-quirk', which indicates that the associated trf7970a device has this erratum. The trf7970a device driver will then ensure that the response length to RMB commands is reduced by one byte (for devices with the erratum). Signed-off-by: Mark A. Greer <mgreer@animalcreek.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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