| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * This header provides constants specific to DM814X pinctrl bindings. |
| */ |
| |
| #ifndef _DT_BINDINGS_PINCTRL_DM814X_H |
| #define _DT_BINDINGS_PINCTRL_DM814X_H |
| |
| #include <dt-bindings/pinctrl/omap.h> |
| |
| #undef INPUT_EN |
| #undef PULL_UP |
| #undef PULL_ENA |
| |
| /* |
| * Note that dm814x silicon revision 2.1 and older require input enabled |
| * (bit 18 set) for all 3.3V I/Os to avoid cumulative hardware damage. For |
| * more info, see errata advisory 2.1.87. We leave bit 18 out of |
| * function-mask in dm814x.h and rely on the bootloader for it. |
| */ |
| #define INPUT_EN (1 << 18) |
| #define PULL_UP (1 << 17) |
| #define PULL_DISABLE (1 << 16) |
| |
| /* update macro depending on INPUT_EN and PULL_ENA */ |
| #undef PIN_OUTPUT |
| #undef PIN_OUTPUT_PULLUP |
| #undef PIN_OUTPUT_PULLDOWN |
| #undef PIN_INPUT |
| #undef PIN_INPUT_PULLUP |
| #undef PIN_INPUT_PULLDOWN |
| |
| #define PIN_OUTPUT (PULL_DISABLE) |
| #define PIN_OUTPUT_PULLUP (PULL_UP) |
| #define PIN_OUTPUT_PULLDOWN 0 |
| #define PIN_INPUT (INPUT_EN | PULL_DISABLE) |
| #define PIN_INPUT_PULLUP (INPUT_EN | PULL_UP) |
| #define PIN_INPUT_PULLDOWN (INPUT_EN) |
| |
| /* undef non-existing modes */ |
| #undef PIN_OFF_NONE |
| #undef PIN_OFF_OUTPUT_HIGH |
| #undef PIN_OFF_OUTPUT_LOW |
| #undef PIN_OFF_INPUT_PULLUP |
| #undef PIN_OFF_INPUT_PULLDOWN |
| #undef PIN_OFF_WAKEUPENABLE |
| |
| #endif |
| |