From: Andreas Larsson <andreas@gaisler.com>
Date: Fri, 15 Feb 2013 15:52:22 +0000 (+0100)
Subject: spi/spi-fsl-spi: Make sure in spi_fsl_setup that chipselect becomes inactive
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=f482cd0ff506cd74c75edceec4b737c46c60cb12;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

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>
---

diff --git a/drivers/spi/spi-fsl-spi.c b/drivers/spi/spi-fsl-spi.c
index 9878911ee6af..1569f7defc73 100644
--- a/drivers/spi/spi-fsl-spi.c
+++ b/drivers/spi/spi-fsl-spi.c
@@ -387,6 +387,10 @@ static int fsl_spi_setup(struct spi_device *spi)
 		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;
 }