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lib: utils/irqchip: Use fdt_driver for initialization

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The irqchip driver subsystem does not need any extra data, so it can use
`struct fdt_driver` directly. The generic fdt_irqchip_init() performs a
best-effort initialization of all matching DT nodes.

Signed-off-by: Samuel Holland <samuel.holland@sifive.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Samuel Holland
2025-01-19 11:03:55 -08:00
committed by Anup Patel
parent a7f3c159a0
commit 9e1a1518d4
6 changed files with 10 additions and 41 deletions
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31
lib/utils/irqchip/fdt_irqchip.c
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@@ -7,39 +7,12 @@
* Anup Patel <anup.patel@wdc.com>
*/
#include <sbi/sbi_error.h>
#include <sbi/sbi_scratch.h>
#include <sbi_utils/fdt/fdt_helper.h>
#include <sbi_utils/irqchip/fdt_irqchip.h>
/* List of FDT irqchip drivers generated at compile time */
extern struct fdt_irqchip *const fdt_irqchip_drivers[];
extern const struct fdt_driver *const fdt_irqchip_drivers[];
int fdt_irqchip_init(void)
{
int pos, noff, rc;
struct fdt_irqchip *drv;
const struct fdt_match *match;
const void *fdt = fdt_get_address();
for (pos = 0; fdt_irqchip_drivers[pos]; pos++) {
drv = fdt_irqchip_drivers[pos];
noff = -1;
while ((noff = fdt_find_match(fdt, noff,
drv->match_table, &match)) >= 0) {
if (!fdt_node_is_enabled(fdt,noff))
continue;
if (drv->cold_init) {
rc = drv->cold_init(fdt, noff, match);
if (rc == SBI_ENODEV)
continue;
if (rc)
return rc;
}
}
}
return 0;
return fdt_driver_init_all(fdt_get_address(), fdt_irqchip_drivers);
}