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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>
hifive-unleashed-5.1
Vincent Cuissard 2015-11-03 19:19:32 +01:00 committed by Samuel Ortiz
parent 1dbac5c578
commit feacf0024b
1 changed files with 6 additions and 4 deletions
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10
drivers/nfc/nfcmrvl/uart.c
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@ -152,10 +152,6 @@ static int nfcmrvl_nci_uart_open(struct nci_uart *nu)
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 @@ static void nfcmrvl_nci_uart_tx_start(struct nci_uart *nu)
{
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 @@ static void nfcmrvl_nci_uart_tx_done(struct nci_uart *nu)
{
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