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

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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 <samuel.holland@sifive.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Samuel Holland
2024-09-03 19:09:38 -07:00
committed by Anup Patel
parent 598cf961d8
commit d71150ee70
5 changed files with 15 additions and 22 deletions
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2
include/sbi_utils/gpio/fdt_gpio.h
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@@ -20,7 +20,7 @@ struct fdt_gpio {
int (*xlate)(struct gpio_chip *chip,
const struct fdt_phandle_args *pargs,
struct gpio_pin *out_pin);
int (*init)(const void *fdt, int nodeoff, u32 phandle,
int (*init)(const void *fdt, int nodeoff,
const struct fdt_match *match);
};