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The pin functions associated to the ethernet controller were introduced
with the label "wemac", which was the name of the ethernet driver in the
allwinner source tree, while the real name of the IP is actually "emac",
as advertised in several documents including the datasheet.
Since this is part of the device tree bindings, and that these part of
the bindings have not yet be released in a kernel version, it seems like
the good timing to change it and assure consistency.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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For the port controller to work, we need to enable the apb0_pio gate.
This commit adds the ability to enable one clock specified on the device
tree to the pinctrl driver.
Signed-off-by: Emilio López <emilio@elopez.com.ar>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The initial driver contained only a limited set of pins functions
because we lacked of documentation on it.
Now that we have such documentation, finish to fill the array.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The initial driver contained only a limited set of pins functions
because we lacked of documentation on it.
Now that we have such documentation, finish to fill the array.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The pinconf, pinctrl and pinmux operation structures hold function
pointers that are never modified. Declare them as const.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Since the pin controller of sunxi chips is represented as a
single bank in the driver.
Since this is neither convenient nor represented that way in the
datasheets, define a custom of_xlate function with the layout
<bank pin flag>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Since the Allwinner SoCs variants don't have the same set of pins to
handle, we need to declare the pin ranges available.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The IP responsible for the muxing on the Allwinner SoCs are also
handling the GPIOs on the system. This patch adds the needed driver that
relies on the pinctrl driver for most of its operations.
The number of pins available for GPIOs operations are already declared
in the pinctrl driver, we only need to probe a generic driver to handle
the banks available for each SoC.
This driver has been tested on a A13-Olinuxino.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Since the Allwinner SoCs variants don't have the same set of pins to
handle, we need to declare the pin ranges available.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The Allwinner SoCs have an IP module that handle both the muxing and the
GPIOs.
This IP has 8 banks of 32 bits, with a number of pins actually useful
for each of these banks varying from one to another, and depending on
the SoC used on the board.
This driver only implements the pinctrl part, the gpio part will come
eventually.
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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