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spi: bcm-qspi: Always read and set BSPI_MAST_N_BOOT_CTRL 

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

Fixes: 4e3b2d236f ("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
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Kamal Dasu 2018-04-26 14:48:01 -04:00 committed by Mark Brown
parent 5eb9a07a4a
commit 602805fb61
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GPG Key ID: 24D68B725D5487D0
1 changed files with 2 additions and 2 deletions
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4
drivers/spi/spi-bcm-qspi.c
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@ -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;