From: Po Liu <po.liu@nxp.com>
To: <broonie@kernel.org>
Cc: <linux-spi@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
Po Liu <po.liu@nxp.com>
Subject: [PATCH] dspi: config dspi master regmap with right mode depend on BE or LE
Date: Wed, 13 Apr 2016 19:03:22 +0800 [thread overview]
Message-ID: <1460545402-8162-1-git-send-email-po.liu@nxp.com> (raw)
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@nxp.com>
---
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
next reply other threads:[~2016-04-13 12:46 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-13 11:03 Po Liu [this message]
2016-04-13 14:06 ` Mark Brown
2016-04-17 2:41 ` Scott Wood
2016-04-18 10:11 ` Mark Brown
2016-04-19 2:30 ` Po Liu
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