linux/drivers/nfc/st21nfcb, branch master

nfc: st-nci: Rename st21nfcb to st-nci

2015-06-10T10:51:44Z

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: Christophe Ricard Signed-off-by: Samuel Ortiz

NFC: st21nfcb: Configure CLF with NCI proprietary command

2015-06-08T22:34:26Z

In order to prevent any NFC feature when NFC is disable and to save power, (down to 4uA) put the CLF in hibernate mode with RF deactivated. Add the equivalent to enable the NFC feature when initiating the st21nfcb driver. Signed-off-by: Christophe Ricard Signed-off-by: Samuel Ortiz

NFC: st21nfcb: disable irq when st21nfcb is disabled

2015-06-08T22:34:26Z

When st21nfcb is disabled, the irq line may remain active while no data are available, flooding the system with irrelevant i2c transaction. Signed-off-by: Christophe Ricard Signed-off-by: Samuel Ortiz

NFC: st21nfcb: Move powered flag from phy to ndlc layer

2015-06-08T22:34:25Z

The powered flag can be set from the ndlc_open and ndlc_close layer. Signed-off-by: Christophe Ricard Signed-off-by: Samuel Ortiz

NFC: st21nfcb: Move st21nfcb_nci_remove in ndlc_remove

2015-06-08T22:34:25Z

Removing st21nfcb may need to execute some specific commands before stopping the ndlc state machine. Signed-off-by: Christophe Ricard Signed-off-by: Samuel Ortiz

NFC: st21nfcb: Add support for nci proprietary commands

2015-06-08T22:34:24Z

On st21nfcb, nci proprietary commands are available to run specific chip operations (for example: power management) Signed-off-by: Christophe Ricard Signed-off-by: Samuel Ortiz

NFC: st21nfcb: Fix st21nfcb_nci_close

2015-06-08T22:34:23Z

When closing st21nfcb driver, flag ST21NFCB_NCI_RUNNING can be cleared only once the ndlc and the transport (i2c or spi) layers are released. Signed-off-by: Christophe Ricard Signed-off-by: Samuel Ortiz

NFC: st21nfcb: Add ndlc_close in st21nfcb_nci_remove

2015-06-08T22:34:23Z

In order to release the st21nfcb properly close the ndlc layer first. Signed-off-by: Christophe Ricard Signed-off-by: Samuel Ortiz

NFC: st21nfcb: remove st21nfcb_nci_i2c_disable

2015-06-08T22:34:23Z

ndlc_remove already calls st21nfcb_nci_i2c_disable and phy->powered is already set to 0. Cc: stable@vger.kernel.org Signed-off-by: Christophe Ricard Signed-off-by: Samuel Ortiz

NFC: st21nfcb: Do not remove header once the payload is sent

2015-06-08T22:34:22Z

Once the data is sent, we need to preserve the full frame for the ndlc state machine. If the NDLC ACK is not received in time, the ndlc layer will resend the same frame. Having the header byte pulled will corrupt the frame. Cc: stable@vger.kernel.org Signed-off-by: Christophe Ricard Signed-off-by: Samuel Ortiz