i2c: i2c-ocores: Use reg-shift property

Deprecate 'regstep' property and use the standard 'reg-shift' property
for register offset shifts. 'regstep' will still be supported as an
optional property, but will give a warning when used.

Signed-off-by: Ganesan Ramalingam <ganesanr@broadcom.com>
Signed-off-by: Jayachandran C <jayachandranc@netlogicmicro.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>

1 files changed, 6 insertions, 2 deletions

diff --git a/Documentation/devicetree/bindings/i2c/i2c-ocores.txt b/Documentation/devicetree/bindings/i2c/i2c-ocores.txt
index bfec8941509c..1c9334bfc39c 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-ocores.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-ocores.txt
@@ -4,11 +4,14 @@ Required properties:
 - compatible      : "opencores,i2c-ocores"
 - reg             : bus address start and address range size of device
 - interrupts      : interrupt number
-- regstep         : size of device registers in bytes
 - clock-frequency : frequency of bus clock in Hz
 - #address-cells  : should be <1>
 - #size-cells     : should be <0>
 
+Optional properties:
+- reg-shift       : device register offsets are shifted by this value
+- regstep         : deprecated, use reg-shift above
+
 Example:
 
         i2c0: ocores@a0000000 {
@@ -17,9 +20,10 @@ Example:
                 compatible = "opencores,i2c-ocores";
                 reg = <0xa0000000 0x8>;
                 interrupts = <10>;
-                regstep = <1>;
                 clock-frequency = <20000000>;
 
+                reg-shift = <0>;        /* 8 bit registers */
+
                 dummy@60 {
                         compatible = "dummy";
                         reg = <0x60>;