From 602805fb618b018b7a41fbb3f93c1992b078b1ae Mon Sep 17 00:00:00 2001
From: Kamal Dasu <kdasu.kdev@gmail.com>
Date: Thu, 26 Apr 2018 14:48:01 -0400
Subject: [PATCH] spi: bcm-qspi: Always read and set BSPI_MAST_N_BOOT_CTRL
Git-commit: 602805fb618b018b7a41fbb3f93c1992b078b1ae
Patch-mainline: v4.17-rc6
References: bsc#1051510

Always confirm the BSPI_MAST_N_BOOT_CTRL bit when enabling
or disabling BSPI transfers.

Fixes: 4e3b2d236fe00 ("spi: bcm-qspi: Add BSPI spi-nor flash controller driver")
Signed-off-by: Kamal Dasu <kdasu.kdev@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/spi/spi-bcm-qspi.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/spi/spi-bcm-qspi.c b/drivers/spi/spi-bcm-qspi.c
index 2946989c61a2..6573152ce893 100644
--- a/drivers/spi/spi-bcm-qspi.c
+++ b/drivers/spi/spi-bcm-qspi.c
@@ -490,7 +490,7 @@ static int bcm_qspi_bspi_set_mode(struct bcm_qspi *qspi,
 
 static void bcm_qspi_enable_bspi(struct bcm_qspi *qspi)
 {
-	if (!has_bspi(qspi) || (qspi->bspi_enabled))
+	if (!has_bspi(qspi))
 		return;
 
 	qspi->bspi_enabled = 1;
@@ -505,7 +505,7 @@ static void bcm_qspi_enable_bspi(struct bcm_qspi *qspi)
 
 static void bcm_qspi_disable_bspi(struct bcm_qspi *qspi)
 {
-	if (!has_bspi(qspi) || (!qspi->bspi_enabled))
+	if (!has_bspi(qspi))
 		return;
 
 	qspi->bspi_enabled = 0;
-- 
2.18.0