Dummy zero bits are sent before data during a read transfer. This causes the data read to be shifted to the right. To fix this send zero bits after the address during a read transfer. Add property to send zero bits after the address during a read transfer. Suggested-by: Vignesh Raghavendra <vigneshr@xxxxxx> Signed-off-by: Aswath Govindraju <a-govindraju@xxxxxx> --- Documentation/devicetree/bindings/misc/eeprom-93xx46.txt | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/misc/eeprom-93xx46.txt b/Documentation/devicetree/bindings/misc/eeprom-93xx46.txt index a8ebb4621f79..09fb1cec54f0 100644 --- a/Documentation/devicetree/bindings/misc/eeprom-93xx46.txt +++ b/Documentation/devicetree/bindings/misc/eeprom-93xx46.txt @@ -10,7 +10,9 @@ Optional properties: - read-only : parameter-less property which disables writes to the EEPROM - select-gpios : if present, specifies the GPIO that will be asserted prior to each access to the EEPROM (e.g. for SPI bus multiplexing) - +- read-op-dummy-cycles: If present specifies the number of dummy zero-bits to + be sent after the address during a read transfer to ignore any bits sent + preceding the data. Property rules described in Documentation/devicetree/bindings/spi/spi-bus.txt apply. In particular, "reg" and "spi-max-frequency" properties must be given. -- 2.17.1
