The Kconfig currently controlling compilation of this code is:

drivers/reset/Kconfig:config RESET_SOCFPGA
drivers/reset/Kconfig:  bool "SoCFPGA Reset Driver" if COMPILE_TEST
drivers/reset/Kconfig:  default ARCH_SOCFPGA

or

arch/arm/mach-socfpga/Kconfig:menuconfig ARCH_SOCFPGA
arch/arm/mach-socfpga/Kconfig:  bool "Altera SOCFPGA family" if ARCH_MULTI_V7

...meaning that it currently is not being built as a module by anyone.

Lets remove the small amount of modular evidence that remains, so that
when reading the driver there is no doubt it is builtin-only.

Since module_platform_driver() uses the same init level priority as
builtin_platform_driver() the init ordering remains unchanged with
this commit.

We also delete the MODULE_LICENSE tag etc. since all that information
was (or is now) contained at the top of the file in the comments.

Cc: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>

Since we can just add it to membase once, there is no need to store
modrst_offset separately, and to repeat the addition with every access.
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>
Tested-by: NDinh Nguyen <dinguyen@opensource.altera.com>

Use devm_reset_controller_register() for the reset controller
registration and drop the .remove callback.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>

The socfpga_reset_ops structure is never modified. Make it const.
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>

Currently, reset_controller_register() always return 0, but it would
be better to check its return code.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: NSören Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>

In order for the Arria10 to be able to re-use the reset driver for SoCFPGA
Cyclone5/Arria5, we need to read the 'altr,modrst-offset' property from the
device tree entry. The 'altr,modrst-offset' property is the first register
into the reset manager that is used for bringing peripherals out of reset.

The driver assumes a modrst-offset of 0x10 in order to support legacy
Cyclone5/Arria5 hardware.
Signed-off-by: NDinh Nguyen <dinguyen@opensource.altera.com>

Populate the reset_status callback for SOCFPGA.
Signed-off-by: NAlan Tull <atull@opensource.altera.com>
Signed-off-by: NDinh Nguyen <dinguyen@opensource.altera.com>
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>

A platform_driver does not need to set an owner, it will be populated by the
driver core.
Signed-off-by: NWolfram Sang <wsa@the-dreams.de>

Add a reset-controller driver for the socfpga platform.
The reset-controller has four banks with up to 32 entries all encapsulated in
one module block.
Signed-off-by: NSteffen Trumtrar <s.trumtrar@pengutronix.de>
Acked-by: NPhilipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: NDinh Nguyen <dinguyen@altera.com>
---

Notes:
    Changes since v2:
        - remove superfluous ret in probe function
        - add Acked-by

    Changes since v1:
        - use BITS_PER_LONG everywhere instead of MAX_BANK_WIDTH
        - print pdev->dev.of_node->full_name on error
        - use proper IS_ERR/PTR_ERR