opensbi.git/lib/utils/regmap/fdt_regmap_syscon.c, branch v1.6

lib: utils/regmap: Use fdt_driver for initialization

2024-11-28T12:15:29Z

The regmap driver subsystem does not need any extra data, so it can use `struct fdt_driver` directly. It always initializes the driver for a specific DT node. Signed-off-by: Samuel Holland Reviewed-by: Anup Patel

lib: utils/regmap: Use FDT node offset as regmap ID

2024-11-05T12:24:41Z

Since the FDT is not modified during driver initialization, node offsets are just as suitable as phandles for use as identifiers: they are stable and unique. With this change, it is no longer necessary to pass the phandle to the driver init functions, so these init functions now use the same prototype as other kinds of drivers. This matches what is already done for I2C adapters. Signed-off-by: Samuel Holland Reviewed-by: Anup Patel

lib: utils/regmap: Constify FDT pointers in parsing functions

2024-08-24T07:32:39Z

Indicate that none of these functions modify the devicetree by constifying the parameter type. Signed-off-by: Samuel Holland Reviewed-by: Andrew Jones Reviewed-by: Anup Patel

lib: utils/regmap: Mark syscon region as shared read-write

2023-09-24T11:44:26Z

The syscon region used by OpenSBI should be marked as a shared read-write region between M-mode and SU-mode. Signed-off-by: Anup Patel Signed-off-by: Mayuresh Chitale

lib: utils/regmap: Add simple FDT based syscon regmap driver

2023-07-31T08:39:13Z

Let us add a simple FDT based system regmap driver which follows the device tree bindings already defined in the Linux kernel. Signed-off-by: Anup Patel Reviewed-by: Xiang W