USB: isp1760: Fix endianness-sensitivity in of_isp1760_probe()
Data read direct from device tree properties will be in the device
tree's native endianness (i.e., big-endian).
This patch uses of_property_read_u32() to read the bus-width
property in host byte order instead.
Signed-off-by: Dave Martin <dave.martin@linaro.org>
Acked-by: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/host/isp1760-if.c b/drivers/usb/host/isp1760-if.c
index a7dc1e1..b605224 100644
--- a/drivers/usb/host/isp1760-if.c
+++ b/drivers/usb/host/isp1760-if.c
@@ -47,9 +47,9 @@
int virq;
resource_size_t res_len;
int ret;
- const unsigned int *prop;
unsigned int devflags = 0;
enum of_gpio_flags gpio_flags;
+ u32 bus_width = 0;
drvdata = kzalloc(sizeof(*drvdata), GFP_KERNEL);
if (!drvdata)
@@ -77,8 +77,8 @@
devflags |= ISP1760_FLAG_ISP1761;
/* Some systems wire up only 16 of the 32 data lines */
- prop = of_get_property(dp, "bus-width", NULL);
- if (prop && *prop == 16)
+ of_property_read_u32(dp, "bus-width", &bus_width);
+ if (bus_width == 16)
devflags |= ISP1760_FLAG_BUS_WIDTH_16;
if (of_get_property(dp, "port1-otg", NULL) != NULL)