Add dt-bindings for Renesas r7s72100 pin controller header file. Signed-off-by: Jacopo Mondi <[email protected]> --- include/dt-bindings/pinctrl/r7s72100-pinctrl.h | 30 ++++++++++++++++++++++++++ 1 file changed, 30 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..24759bf --- /dev/null +++ b/include/dt-bindings/pinctrl/r7s72100-pinctrl.h @@ -0,0 +1,30 @@ +/* + * 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 it's bank and position numbers */ +#define PIN(b, p) ((b) * RZA1_PINS_PER_PORT + (p)) + +/* Flags to apply to alternate function configuration */ +/* + * Pin needs input buffer enabled. + * This applies to pin which alternate function requires input capabilities. + * Eg: RX pin on a serial interface needs this flag to be set. + */ +#define INPUT_EN (1 << 3) + +/* + * Let software drive the pin I/O direction overriding the alternate function + * configuration. + * Some alternate function requires software to force I/O direction of a pin, + * ovverriding the designated one. + * Reference to the HW manual to know when this flag shall be used. + */ +#define SWIO (1 << 4) + +#endif -- 2.7.4
