From 4df24f2c40e3ae4856cc484e8d75f9cf12f9161c Mon Sep 17 00:00:00 2001
From: Alexander Stein <alexander.stein@systec-electronic.com>
Date: Thu, 1 Jun 2017 09:32:19 +0200
Subject: spi: fsl_qspi: Pet watchdog even more

Pet the watchdog once upon each command call (qspi_xfer) and during
each loop iteration in several commands.

This fixes a watchdog reset especially during erase command.

Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Reviewed-by: York Sun <york.sun@nxp.com>

diff --git a/drivers/spi/fsl_qspi.c b/drivers/spi/fsl_qspi.c
index e61c67b..1dfa89a 100644
--- a/drivers/spi/fsl_qspi.c
+++ b/drivers/spi/fsl_qspi.c
@@ -493,6 +493,8 @@ static void qspi_op_rdbank(struct fsl_qspi_priv *priv, u8 *rxbuf, u32 len)
 		;
 
 	while (1) {
+		WATCHDOG_RESET();
+
 		reg = qspi_read32(priv->flags, &regs->rbsr);
 		if (reg & QSPI_RBSR_RDBFL_MASK) {
 			data = qspi_read32(priv->flags, &regs->rbdr[0]);
@@ -530,6 +532,8 @@ static void qspi_op_rdid(struct fsl_qspi_priv *priv, u32 *rxbuf, u32 len)
 
 	i = 0;
 	while ((RX_BUFFER_SIZE >= len) && (len > 0)) {
+		WATCHDOG_RESET();
+
 		rbsr_reg = qspi_read32(priv->flags, &regs->rbsr);
 		if (rbsr_reg & QSPI_RBSR_RDBFL_MASK) {
 			data = qspi_read32(priv->flags, &regs->rbdr[i]);
@@ -702,6 +706,8 @@ static void qspi_op_rdsr(struct fsl_qspi_priv *priv, void *rxbuf, u32 len)
 		;
 
 	while (1) {
+		WATCHDOG_RESET();
+
 		reg = qspi_read32(priv->flags, &regs->rbsr);
 		if (reg & QSPI_RBSR_RDBFL_MASK) {
 			data = qspi_read32(priv->flags, &regs->rbdr[0]);
@@ -757,6 +763,8 @@ int qspi_xfer(struct fsl_qspi_priv *priv, unsigned int bitlen,
 	static u32 wr_sfaddr;
 	u32 txbuf;
 
+	WATCHDOG_RESET();
+
 	if (dout) {
 		if (flags & SPI_XFER_BEGIN) {
 			priv->cur_seqid = *(u8 *)dout;
-- 
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