NFC: nfcmrvl: avoid UART break control during FW download
BootROM does not support any form of power management during
FW download. On UART, the driver shall not try to send breaks.
Signed-off-by: Vincent Cuissard <cuissard@marvell.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/nfc/nfcmrvl/uart.c b/drivers/nfc/nfcmrvl/uart.c
index f3d041c..b33249b 100644
--- a/drivers/nfc/nfcmrvl/uart.c
+++ b/drivers/nfc/nfcmrvl/uart.c
@@ -152,10 +152,6 @@
nu->drv_data = priv;
nu->ndev = priv->ndev;
- /* Set BREAK */
- if (priv->config.break_control && nu->tty->ops->break_ctl)
- nu->tty->ops->break_ctl(nu->tty, -1);
-
return 0;
}
@@ -174,6 +170,9 @@
{
struct nfcmrvl_private *priv = (struct nfcmrvl_private *)nu->drv_data;
+ if (priv->ndev->nfc_dev->fw_download_in_progress)
+ return;
+
/* Remove BREAK to wake up the NFCC */
if (priv->config.break_control && nu->tty->ops->break_ctl) {
nu->tty->ops->break_ctl(nu->tty, 0);
@@ -185,6 +184,9 @@
{
struct nfcmrvl_private *priv = (struct nfcmrvl_private *)nu->drv_data;
+ if (priv->ndev->nfc_dev->fw_download_in_progress)
+ return;
+
/*
** To ensure that if the NFCC goes in DEEP SLEEP sate we can wake him
** up. we set BREAK. Once we will be ready to send again we will remove