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syscore: Pass context data to callbacks

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Several drivers can benefit from registering per-instance data along
with the syscore operations. To achieve this, move the modifiable fields
out of the syscore_ops structure and into a separate struct syscore that
can be registered with the framework. Add a void * driver data field for
drivers to store contextual data that will be passed to the syscore ops.

Acked-by: Rafael J. Wysocki (Intel) <rafael@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding
2025-10-29 17:33:30 +01:00
parent 3a86608788
commit a97fbc3ee3
109 changed files with 899 additions and 471 deletions
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16
arch/mips/pci/pci-alchemy.c
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@@ -304,7 +304,7 @@ static int alchemy_pci_def_idsel(unsigned int devsel, int assert)
}
/* save PCI controller register contents. */
static int alchemy_pci_suspend(void)
static int alchemy_pci_suspend(void *data)
{
struct alchemy_pci_context *ctx = __alchemy_pci_ctx;
if (!ctx)
@@ -326,7 +326,7 @@ static int alchemy_pci_suspend(void)
return 0;
}
static void alchemy_pci_resume(void)
static void alchemy_pci_resume(void *data)
{
struct alchemy_pci_context *ctx = __alchemy_pci_ctx;
if (!ctx)
@@ -354,9 +354,13 @@ static void alchemy_pci_resume(void)
alchemy_pci_wired_entry(ctx); /* install it */
}
static struct syscore_ops alchemy_pci_pmops = {
.suspend = alchemy_pci_suspend,
.resume = alchemy_pci_resume,
static const struct syscore_ops alchemy_pci_syscore_ops = {
.suspend = alchemy_pci_suspend,
.resume = alchemy_pci_resume,
};
static struct syscore alchemy_pci_syscore = {
.ops = &alchemy_pci_syscore_ops,
};
static int alchemy_pci_probe(struct platform_device *pdev)
@@ -478,7 +482,7 @@ static int alchemy_pci_probe(struct platform_device *pdev)
__alchemy_pci_ctx = ctx;
platform_set_drvdata(pdev, ctx);
register_syscore_ops(&alchemy_pci_pmops);
register_syscore(&alchemy_pci_syscore);
register_pci_controller(&ctx->alchemy_pci_ctrl);
dev_info(&pdev->dev, "PCI controller at %ld MHz\n",