diff options
| author | Vivien Didelot <vivien.didelot@savoirfairelinux.com> | 2012-12-07 21:36:34 -0500 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2012-12-10 11:23:25 +0100 |
| commit | 759f5f3752e03f15727688b5288e360ef90c1306 (patch) | |
| tree | c2abc698947d5fe615ad5088255ffd1738cb4527 /include/linux/platform_data/gpio-ts5500.h | |
| parent | 805f864ebefc39065b6b0cf2548f13c2fbf888d9 (diff) | |
gpio: add TS-5500 DIO blocks support
Technologic Systems TS-5500 provides digital I/O lines exposed through
pin blocks. On this platform, there are three of them, named DIO1, DIO2
and LCD port, that may be used as a DIO block.
The TS-5500 pin blocks are described in the product's wiki:
http://wiki.embeddedarm.com/wiki/TS-5500#Digital_I.2FO
This driver is not limited to the TS-5500 blocks. It can be extended to
support similar boards pin blocks, such as on the TS-5600.
This patch is the V2 of the previous https://lkml.org/lkml/2012/9/25/671
with corrections suggested by Linus Walleij.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Jerome Oufella <jerome.oufella@savoirfairelinux.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'include/linux/platform_data/gpio-ts5500.h')
| -rw-r--r-- | include/linux/platform_data/gpio-ts5500.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/include/linux/platform_data/gpio-ts5500.h b/include/linux/platform_data/gpio-ts5500.h new file mode 100644 index 00000000000..b10d11c9bb4 --- /dev/null +++ b/include/linux/platform_data/gpio-ts5500.h @@ -0,0 +1,27 @@ +/* + * GPIO (DIO) header for Technologic Systems TS-5500 + * + * Copyright (c) 2012 Savoir-faire Linux Inc. + * Vivien Didelot <vivien.didelot@savoirfairelinux.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef _PDATA_GPIO_TS5500_H +#define _PDATA_GPIO_TS5500_H + +/** + * struct ts5500_dio_platform_data - TS-5500 pin block configuration + * @base: The GPIO base number to use. + * @strap: The only pin connected to an interrupt in a block is input-only. + * If you need a bidirectional line which can trigger an IRQ, you + * may strap it with an in/out pin. This flag indicates this case. + */ +struct ts5500_dio_platform_data { + int base; + bool strap; +}; + +#endif /* _PDATA_GPIO_TS5500_H */ |