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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
| commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
| tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /include/dt-bindings/pinctrl/dm814x.h | |
| parent | Initial commit. (diff) | |
| download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip | |
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'include/dt-bindings/pinctrl/dm814x.h')
| -rw-r--r-- | include/dt-bindings/pinctrl/dm814x.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/include/dt-bindings/pinctrl/dm814x.h b/include/dt-bindings/pinctrl/dm814x.h new file mode 100644 index 000000000..afbabbc4d --- /dev/null +++ b/include/dt-bindings/pinctrl/dm814x.h @@ -0,0 +1,49 @@ +/* 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 + |