STMicroelectronics NFC NCI chips family is extending
with the new ST21NFCC using the AMS AS39230 RF booster.
The st21nfcb driver is relevant for this solution and
might be with future products.
Signed-off-by: NChristophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

Other drivers are following the following compatible string format for dts:
s/_/-/

Because some devices may still use the previous string, the new corrected
string is added to the of_device_id table.
Signed-off-by: NChristophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

St21nfcb has a reverse polarity compare to st21nfca.
In st21nfcb case, the irq pin is active high.
Signed-off-by: NChristophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

Describe the properties used by the st21nfcb NFC controller driver.
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

Replaced st,st21nfca-i2c by st,st21nfca_i2c to be concistent
with below configuration and driver in drivers/nfc/st21nfca/
Signed-off-by: NChristophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

Describe the properties used by the st21nfca NFC controller driver.
Signed-off-by: NChristophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>