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spi_xx25xx: Repair the spi bus locking mechanism when waiting for write completion

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Sebastien Lorquet 2023-03-20 12:33:31 +01:00 committed by Brennan Ashton
parent 947100c5b8
commit 13d823f307
1 changed files with 2 additions and 2 deletions
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4
drivers/eeprom/spi_xx25xx.c
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@ -377,6 +377,7 @@ static void ee25xx_waitwritecomplete(struct ee25xx_dev_s *priv)
{ {
/* Select this FLASH part */ /* Select this FLASH part */
ee25xx_lock(priv->spi);
SPI_SELECT(priv->spi, SPIDEV_EEPROM(0), true); SPI_SELECT(priv->spi, SPIDEV_EEPROM(0), true);
/* Send "Read Status Register (RDSR)" command */ /* Send "Read Status Register (RDSR)" command */
@ -392,6 +393,7 @@ static void ee25xx_waitwritecomplete(struct ee25xx_dev_s *priv)
/* Deselect the FLASH */ /* Deselect the FLASH */
SPI_SELECT(priv->spi, SPIDEV_EEPROM(0), false); SPI_SELECT(priv->spi, SPIDEV_EEPROM(0), false);
ee25xx_unlock(priv->spi);
/* Given that writing could take up to a few milliseconds, /* Given that writing could take up to a few milliseconds,
* the following short delay in the "busy" case will allow * the following short delay in the "busy" case will allow
@ -400,9 +402,7 @@ static void ee25xx_waitwritecomplete(struct ee25xx_dev_s *priv)
if ((status & EE25XX_SR_WIP) != 0) if ((status & EE25XX_SR_WIP) != 0)
{ {
ee25xx_unlock(priv->spi);
nxsig_usleep(1000); nxsig_usleep(1000);
ee25xx_lock(priv->spi);
} }
} }
while ((status & EE25XX_SR_WIP) != 0); while ((status & EE25XX_SR_WIP) != 0);