opensbi.git/lib/utils/gpio/fdt_gpio_starfive.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

gpio/starfive: redundant readl() call

2023-10-06T11:59:09Z

In starfive_gpio_direction_output() readl() is called twice to read the gpio direction register. The result of the first read is discarded. Remove the redundant read. Fixes: 908be1b85c8f ("gpio/starfive: add gpio driver and support gpio reset") Signed-off-by: Heinrich Schuchardt 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

gpio/starfive: add gpio driver and support gpio reset

2023-03-01T03:29:33Z

Add gpio driver and gpio reset function in Starfive JH7110 SOC platform. Signed-off-by: minda.chen Reviewed-by: Anup Patel