This function operates on a string buffer and concatenates both the year and month. It will be used later when the mdt is added as a parameter. Signed-off-by: Stefan Kerkmann <s.kerkmann@xxxxxxxxxxxxxx> --- drivers/mci/mci-core.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/drivers/mci/mci-core.c b/drivers/mci/mci-core.c index df72445edd..48eee35f2c 100644 --- a/drivers/mci/mci-core.c +++ b/drivers/mci/mci-core.c @@ -2030,6 +2030,20 @@ static unsigned extract_mdt_year(struct mci *mci) return year; } +/** + * Extract the manufacturing date from the CID + * @param mci Instance data + * + * The 'MDT' is encoded in bit 19:8 in the CID + */ +static void extract_mdt(struct mci *mci, char mdt[static 8]) +{ + unsigned month = extract_mdt_month(mci); + unsigned year = extract_mdt_year(mci); + + snprintf(mdt, 8, "%u.%u", year, month); +} + static const char *mci_timing_tostr(unsigned timing) { switch (timing) { -- 2.39.2