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i3c: mipi-i3c-hci-pci: Add exit callback

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Prepare to add device-specific features that require cleanup
upon driver removal.  Add ->exit() callback as a counterpart to ->init().

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20251128064038.55158-11-adrian.hunter@intel.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
This commit is contained in:
Adrian Hunter 2025-11-28 08:40:36 +02:00 committed by Alexandre Belloni
parent 0f9ef14b3f
commit 040dcd762d
1 changed files with 12 additions and 5 deletions
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17
drivers/i3c/master/mipi-i3c-hci/mipi-i3c-hci-pci.c
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@ -17,10 +17,12 @@
struct mipi_i3c_hci_pci {
struct pci_dev *pci;
struct platform_device *pdev;
const struct mipi_i3c_hci_pci_info *info;
};
struct mipi_i3c_hci_pci_info {
int (*init)(struct mipi_i3c_hci_pci *hci);
void (*exit)(struct mipi_i3c_hci_pci *hci);
};
static DEFINE_IDA(mipi_i3c_hci_pci_ida);
@ -72,7 +74,6 @@ static const struct mipi_i3c_hci_pci_info intel_info = {
static int mipi_i3c_hci_pci_probe(struct pci_dev *pci,
const struct pci_device_id *id)
{
const struct mipi_i3c_hci_pci_info *info;
struct mipi_i3c_hci_pci *hci;
struct resource res[2];
int dev_id, ret;
@ -114,21 +115,24 @@ static int mipi_i3c_hci_pci_probe(struct pci_dev *pci,
if (ret)
goto err;
info = (const struct mipi_i3c_hci_pci_info *)id->driver_data;
if (info && info->init) {
ret = info->init(hci);
hci->info = (const struct mipi_i3c_hci_pci_info *)id->driver_data;
if (hci->info && hci->info->init) {
ret = hci->info->init(hci);
if (ret)
goto err;
}
ret = platform_device_add(hci->pdev);
if (ret)
goto err;
goto err_exit;
pci_set_drvdata(pci, hci);
return 0;
err_exit:
if (hci->info && hci->info->exit)
hci->info->exit(hci);
err:
platform_device_put(hci->pdev);
ida_free(&mipi_i3c_hci_pci_ida, dev_id);
@ -141,6 +145,9 @@ static void mipi_i3c_hci_pci_remove(struct pci_dev *pci)
struct platform_device *pdev = hci->pdev;
int dev_id = pdev->id;
if (hci->info && hci->info->exit)
hci->info->exit(hci);
platform_device_unregister(pdev);
ida_free(&mipi_i3c_hci_pci_ida, dev_id);
}