xiaomi-sm8450/android_kernel_xiaomi_sm8450
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of: assume big-endian properties, adding conversions where necessary

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Properties in the device tree are specified as big-endian. At present,
the only platforms to support device trees are also big-endian, so we've
been acessing the properties as raw values.

We'd like to add device tree support to little-endian platforms too, so
add endian conversion to the sites where we access property values in
the common of code.

Compiled on powerpc (ppc44x_defconfig & ppc64_defconfig) and arm (fdt
support only for now).

Signed-off-by: Jeremy Kerr <jeremy.kerr@canonical.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
This commit is contained in:
Jeremy Kerr
2010-01-30 01:45:26 -07:00
committed by Grant Likely
parent 2e89e685a8
commit 337148812f
6 changed files with 47 additions and 41 deletions
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6
drivers/of/of_spi.c
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@@ -23,7 +23,7 @@ void of_register_spi_devices(struct spi_master *master, struct device_node *np)
{
struct spi_device *spi;
struct device_node *nc;
const u32 *prop;
const __be32 *prop;
int rc;
int len;
@@ -54,7 +54,7 @@ void of_register_spi_devices(struct spi_master *master, struct device_node *np)
spi_dev_put(spi);
continue;
}
spi->chip_select = *prop;
spi->chip_select = be32_to_cpup(prop);
/* Mode (clock phase/polarity/etc.) */
if (of_find_property(nc, "spi-cpha", NULL))
@@ -72,7 +72,7 @@ void of_register_spi_devices(struct spi_master *master, struct device_node *np)
spi_dev_put(spi);
continue;
}
spi->max_speed_hz = *prop;
spi->max_speed_hz = be32_to_cpup(prop);
/* IRQ */
spi->irq = irq_of_parse_and_map(nc, 0);