Add dt-bindings for Renesas r7s72100 pin controller header file. Signed-off-by: Jacopo Mondi <jacopo+rene...@jmondi.org> --- include/dt-bindings/pinctrl/r7s72100-pinctrl.h | 36 ++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 include/dt-bindings/pinctrl/r7s72100-pinctrl.h
diff --git a/include/dt-bindings/pinctrl/r7s72100-pinctrl.h b/include/dt-bindings/pinctrl/r7s72100-pinctrl.h new file mode 100644 index 0000000..170338b --- /dev/null +++ b/include/dt-bindings/pinctrl/r7s72100-pinctrl.h @@ -0,0 +1,36 @@ +/* + * Defines macros and constants for Renesas RZ/A1 pin controller pin + * muxing functions. + */ +#ifndef __DT_BINDINGS_PINCTRL_RENESAS_RZA1_H +#define __DT_BINDINGS_PINCTRL_RENESAS_RZA1_H + +#define RZA1_PINS_PER_PORT 16 + +/* Create the pin index from its bank and position numbers */ +#define PIN(b, p) ((b) * RZA1_PINS_PER_PORT + (p)) + +/* + * Flags to apply to alternate function configuration + * All of the following are mutually exclusive. + */ + +/* + * Pin is bi-directional. + * An alternate function that needs both input/output functionalities shall + * be configured as bidirectional. + * Eg. SDA/SCL pins of an I2c interface. + */ +#define BI_DIR (1 << 3) + +/* + * Flags used to ask software to drive the pin I/O direction overriding the + * alternate function configuration. + * Some alternate functions require software to force I/O direction of a pin, + * overriding the designated one. + * Refer to the HW manual to know when this flag shall be used. + */ +#define SWIO_IN (1 << 4) +#define SWIO_OUT (1 << 5) + +#endif -- 2.7.4
