spi/spi-fsl-spi: Make sure in spi_fsl_setup that chipselect becomes inactive

This is needed for a device in SPI_CS_HIGH mode that otherwise could start out active for the first transaction. Acked-by: Anton Vorontsov <anton@enomsg.org> Signed-off-by: Andreas Larsson <andreas@gaisler.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

spi/spi-fsl-spi: Make sure in spi_fsl_setup that chipselect becomes inactive
This is needed for a device in SPI_CS_HIGH mode that otherwise could start out active for the first transaction. Acked-by: Anton Vorontsov <anton@enomsg.org> Signed-off-by: Andreas Larsson <andreas@gaisler.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Andreas Larsson · Grant Likely
1 parent e8beacbb85
Showing 1 changed file with 4 additions and 0 deletions Side-by-side Diff
drivers/spi/spi-fsl-spi.c
@@ -387,6 +387,10 @@
 		cs->hw_mode = hw_mode; /* Restore settings */
 		return retval;
 	}
+
+	/* Initialize chipselect - might be active for SPI_CS_HIGH mode */
+	fsl_spi_chipselect(spi, BITBANG_CS_INACTIVE);
+
 	return 0;
 }
...	...	@@ -387,6 +387,10 @@
387	387	cs->hw_mode = hw_mode; /* Restore settings */
388	388	return retval;
389	389	}
	390	+
	391	+ /* Initialize chipselect - might be active for SPI_CS_HIGH mode */
	392	+ fsl_spi_chipselect(spi, BITBANG_CS_INACTIVE);
	393	+
390	394	return 0;
391	395	}
392	396