According to the Devicetree ePAPR [1] the datatypes u8 and u16 are
not defined. So using device_property_read_u16() would result in
a partial read of a 32-bit big-endian integer which is not intended.
So we better read the complete 32-bit value. This fixes a regression
on bcm2835 where the values for g-rx-fifo-size and g-np-tx-fifo-size
always read as zero:

  Invalid value 0 for param g-rx-fifo-size
  Invalid value 0 for param g-np-tx-fifo-size

[1] - http://elinux.org/images/c/cf/Power_ePAPR_APPROVED_v1.1.pdf

Fixes: 05ee799f202 ("usb: dwc2: Move gadget settings into core_params")
Signed-off-by: Stefan Wahren <stefan.wah...@i2se.com>
---
 drivers/usb/dwc2/params.c |   12 ------------
 1 file changed, 12 deletions(-)

diff --git a/drivers/usb/dwc2/params.c b/drivers/usb/dwc2/params.c
index fd5f7f8..2c7b624 100644
--- a/drivers/usb/dwc2/params.c
+++ b/drivers/usb/dwc2/params.c
@@ -247,8 +247,6 @@
 static void dwc2_get_device_property(struct dwc2_hsotg *hsotg,
                                     char *property, u8 size, u64 *value)
 {
-       u8 val8;
-       u16 val16;
        u32 val32;
 
        switch (size) {
@@ -256,17 +254,7 @@ static void dwc2_get_device_property(struct dwc2_hsotg 
*hsotg,
                *value = device_property_read_bool(hsotg->dev, property);
                break;
        case 1:
-               if (device_property_read_u8(hsotg->dev, property, &val8))
-                       return;
-
-               *value = val8;
-               break;
        case 2:
-               if (device_property_read_u16(hsotg->dev, property, &val16))
-                       return;
-
-               *value = val16;
-               break;
        case 4:
                if (device_property_read_u32(hsotg->dev, property, &val32))
                        return;
-- 
1.7.9.5

--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to