opensbi.git/lib/utils/gpio/fdt_gpio_sifive.c, branch master

lib: utils/gpio: Use fdt_driver for initialization

2024-11-28T11:59:12Z

FDT gpio drivers have an extra .xlate operation, so they need to embed the `struct fdt_driver` inside the subsystem-specific type. The gpio subsystem always initializes the driver for a specific DT node. Signed-off-by: Samuel Holland Reviewed-by: Anup Patel

lib: utils/gpio: Use FDT node offset as GPIO chip ID

2024-11-05T12:24:39Z

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/gpio: Constify FDT pointers in parsing functions

2024-08-24T07:32:27Z

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/gpio: Use heap in SiFive and StartFive GPIO drivers

2023-06-05T10:25:29Z

Let's use heap allocation in SiFive and Starfive GPIO drivers instead of using a fixed size global array. Signed-off-by: Anup Patel Reviewed-by: Andrew Jones

lib: utils: Extend fdt_get_node_addr_size() for multiple register sets

2021-08-14T03:32:36Z

We add "index" parameter to fdt_get_node_addr_size() API so that calling function can specify index of desired register set. This will allow fdt_get_node_addr_size() to handle DT nodes with multiple register sets. Signed-off-by: Anup Patel Reviewed-by: Atish Patra

lib: utils/fdt: Change addr and size to uint64_t

2021-08-07T11:56:51Z

The maximum address and size encoded in DT are 64-bit numbers, so we should use uint64_t for 'addr' and 'size' in fdt_get_node_addr_size(). Signed-off-by: Bin Meng Reviewed-by: Anup Patel

lib: utils/gpio: Add minimal SiFive GPIO driver

2021-07-17T08:26:42Z

We add a minimal SiFive GPIO driver so that we can do GPIO based system power-off and reset. Signed-off-by: Green Wan Signed-off-by: Anup Patel Reviewed-by: Atish Patra