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lib: utils/reset: Use fdt_driver for initialization

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The reset driver subsystem does not need any extra data, so it can use
`struct fdt_driver` directly. The generic fdt_reset_init() performs a
best-effort initialization of all matching DT nodes. Platform-specific
logic expects exactly one DT node to match a single driver. This is
accomplished by using fdt_driver_init_one() with a local list containing
that one driver.

Signed-off-by: Samuel Holland <samuel.holland@sifive.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Samuel Holland
2024-11-11 14:02:53 -08:00
committed by Anup Patel
parent 1f8db2f18f
commit 6d9ad492db
11 changed files with 26 additions and 61 deletions
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9
platform/generic/sifive/fu740.c
View File

@@ -209,11 +209,16 @@ static const struct fdt_match da9063_reset_match[] = {
{ },
};
struct fdt_reset fdt_reset_da9063 = {
const struct fdt_driver fdt_reset_da9063 = {
.match_table = da9063_reset_match,
.init = da9063_reset_init,
};
static const struct fdt_driver *const sifive_fu740_reset_drivers[] = {
&fdt_reset_da9063,
NULL
};
static u64 sifive_fu740_tlbr_flush_limit(const struct fdt_match *match)
{
/*
@@ -232,7 +237,7 @@ static int sifive_fu740_final_init(bool cold_boot, void *fdt,
int rc;
if (cold_boot) {
rc = fdt_reset_driver_init(fdt, &fdt_reset_da9063);
rc = fdt_driver_init_one(fdt, sifive_fu740_reset_drivers);
if (rc)
sbi_printf("%s: failed to find da9063 for reset\n",
__func__);

9
platform/generic/starfive/jh7110.c
View File

@@ -227,11 +227,16 @@ static const struct fdt_match pm_reset_match[] = {
{ },
};
static struct fdt_reset fdt_reset_pmic = {
static const struct fdt_driver fdt_reset_pmic = {
.match_table = pm_reset_match,
.init = pm_reset_init,
};
static const struct fdt_driver *const starfive_jh7110_reset_drivers[] = {
&fdt_reset_pmic,
NULL
};
static int starfive_jh7110_inst_init(const void *fdt)
{
int noff, rc = 0;
@@ -281,7 +286,7 @@ static int starfive_jh7110_final_init(bool cold_boot, void *fdt,
const struct fdt_match *match)
{
if (cold_boot) {
fdt_reset_driver_init(fdt, &fdt_reset_pmic);
fdt_driver_init_one(fdt, starfive_jh7110_reset_drivers);
}
return 0;