From: Po Liu <po.liu-3arQi8VN3Tc@public.gmane.org>
To: <broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: <linux-spi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Po Liu <po.liu-3arQi8VN3Tc@public.gmane.org>
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-3arQi8VN3Tc@public.gmane.org>
---
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
--
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next reply other threads:[~2016-04-13 11:03 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-13 11:03 Po Liu [this message]
[not found] ` <1460545402-8162-1-git-send-email-po.liu-3arQi8VN3Tc@public.gmane.org>
2016-04-13 14:06 ` [PATCH] dspi: config dspi master regmap with right mode depend on BE or LE Mark Brown
2016-04-17 2:41 ` Scott Wood
[not found] ` <DB5PR0401MB19281A317BFB1D9001F97ABB916A0-GXldUsIPo7Z/SeJcUcAJq43W/0Ik+aLCnBOFsp37pqbUKgpGm//BTAC/G2K4zDHf@public.gmane.org>
2016-04-18 10:11 ` Mark Brown
[not found] ` <20160418101117.GP3217-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2016-04-19 2:30 ` Po Liu
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