[PATCH] dspi: config dspi master regmap with right mode depend on BE or LE
From: Po Liu
Date: Wed Apr 13 2016 - 08:46:15 EST
When kernel config with big endian mode, spi master need
to config regmap data value to be little endian mode. Or else,
the kernel boot will hang.
Signed-off-by: Po Liu <po.liu@xxxxxxx>
---
drivers/spi/spi-fsl-dspi.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c
index 39412c9..a1d893c 100644
--- a/drivers/spi/spi-fsl-dspi.c
+++ b/drivers/spi/spi-fsl-dspi.c
@@ -637,6 +637,9 @@ static const struct regmap_config dspi_regmap_config = {
.val_bits = 32,
.reg_stride = 4,
.max_register = 0x88,
+#ifdef CONFIG_CPU_BIG_ENDIAN
+ .val_format_endian = REGMAP_ENDIAN_LITTLE,
+#endif
};
static int dspi_probe(struct platform_device *pdev)
--
2.1.0.27.g96db324