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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>
27 lines
838 B
C
27 lines
838 B
C
/*
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* GPIO (DIO) header for Technologic Systems TS-5500
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*
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* Copyright (c) 2012 Savoir-faire Linux Inc.
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* Vivien Didelot <vivien.didelot@savoirfairelinux.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef _PDATA_GPIO_TS5500_H
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#define _PDATA_GPIO_TS5500_H
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/**
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* struct ts5500_dio_platform_data - TS-5500 pin block configuration
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* @base: The GPIO base number to use.
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* @strap: The only pin connected to an interrupt in a block is input-only.
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* If you need a bidirectional line which can trigger an IRQ, you
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* may strap it with an in/out pin. This flag indicates this case.
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*/
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struct ts5500_dio_platform_data {
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int base;
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bool strap;
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};
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#endif /* _PDATA_GPIO_TS5500_H */
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