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/openbmc/linux/drivers/gpio/ |
H A D | gpio-syscon.c | 5a3e3f88 Wed Sep 03 12:05:33 CDT 2014 Grygorii Strashko <grygorii.strashko@ti.com> gpio: syscon: retrive syscon node and regs offsets from dt
This patch adds handling of new "gpio,syscon-dev" DT property, which allows to specify syscon node and data/direction registers offsets in DT.
"gpio,syscon-dev" has following format: gpio,syscon-dev = <&syscon_dev data_reg_offset [direction_reg_offset]>;
where - syscon_dev - phandle on syscon node - data_reg_offset - offset of data register (in bytes) - direction_reg_offset - offset of dirrection register (optional, in bytes)
for example: gpio,syscon-dev = <&devctrl 0x254>;
In such way, the support of multiple Syscon GPIO devices is added.
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> 5a3e3f88 Wed Sep 03 12:05:33 CDT 2014 Grygorii Strashko <grygorii.strashko@ti.com> gpio: syscon: retrive syscon node and regs offsets from dt This patch adds handling of new "gpio,syscon-dev" DT property, which allows to specify syscon node and data/direction registers offsets in DT. "gpio,syscon-dev" has following format: gpio,syscon-dev = <&syscon_dev data_reg_offset [direction_reg_offset]>; where - syscon_dev - phandle on syscon node - data_reg_offset - offset of data register (in bytes) - direction_reg_offset - offset of dirrection register (optional, in bytes) for example: gpio,syscon-dev = <&devctrl 0x254>; In such way, the support of multiple Syscon GPIO devices is added. Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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