From: Vincent Cuissard <cuissard@marvell.com>
Date: Tue, 3 Nov 2015 18:19:33 +0000 (+0100)
Subject: NFC: nfcmrvl: add a small wait after setting UART break
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=d2d2e6456ebccb5d31163dcc3191d83183bbd0b5;p=deliverable%2Flinux.git

NFC: nfcmrvl: add a small wait after setting UART break

A small wait is inserted to ensure that controller has enough
time to handle the break character.

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 b33249bec419..b4c4796dd23e 100644
--- a/drivers/nfc/nfcmrvl/uart.c
+++ b/drivers/nfc/nfcmrvl/uart.c
@@ -192,8 +192,10 @@ static void nfcmrvl_nci_uart_tx_done(struct nci_uart *nu)
 	** up. we set BREAK. Once we will be ready to send again we will remove
 	** it.
 	*/
-	if (priv->config.break_control && nu->tty->ops->break_ctl)
+	if (priv->config.break_control && nu->tty->ops->break_ctl) {
 		nu->tty->ops->break_ctl(nu->tty, -1);
+		usleep_range(1000, 3000);
+	}
 }
 
 static struct nci_uart nfcmrvl_nci_uart = {