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gpio: add TS-5500 DIO blocks support

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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>
This commit is contained in:
Vivien Didelot
2012-12-07 21:36:34 -05:00
committed by Linus Walleij
parent 805f864ebe
commit 759f5f3752
4 changed files with 502 additions and 0 deletions
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drivers/gpio/Kconfig
+8
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@@ -211,6 +211,14 @@ config GPIO_STA2X11
Say yes here to support the STA2x11/ConneXt GPIO device.
The GPIO module has 128 GPIO pins with alternate functions.
config GPIO_TS5500
tristate "TS-5500 DIO blocks and compatibles"
help
This driver supports Digital I/O exposed by pin blocks found on some
Technologic Systems platforms. It includes, but is not limited to, 3
blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
LCD port.
config GPIO_VT8500
bool "VIA/Wondermedia SoC GPIO Support"
depends on ARCH_VT8500