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i2c: designware: Convert PCI driver to use shutdown hook

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Convert the PCI driver to use the new i2c_dw_shutdown() hook, allowing
the controller to gracefully NACK controller requests during system
shutdown.

Signed-off-by: William A. Kennington III <william@wkennington.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20260527-dw-i2c-v5-2-3483057f8d67@wkennington.com
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William A. Kennington III 2026-05-27 20:09:50 +00:00 committed by Andi Shyti
parent 199a0fd953
commit 42b4f04a2f
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1 changed files with 14 additions and 0 deletions
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14
drivers/i2c/busses/i2c-designware-pcidrv.c
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@ -356,10 +356,24 @@ static const struct pci_device_id i2c_designware_pci_ids[] = {
};
MODULE_DEVICE_TABLE(pci, i2c_designware_pci_ids);
static void i2c_dw_pci_shutdown(struct pci_dev *pdev)
{
struct dw_i2c_dev *i_dev;
i_dev = pci_get_drvdata(pdev);
if (!i_dev)
return;
pm_runtime_disable(&pdev->dev);
if (!pm_runtime_status_suspended(&pdev->dev))
i2c_dw_shutdown(i_dev);
}
static struct pci_driver dw_i2c_driver = {
.name = DRIVER_NAME,
.probe = i2c_dw_pci_probe,
.remove = i2c_dw_pci_remove,
.shutdown = i2c_dw_pci_shutdown,
.driver = {
.pm = pm_ptr(&i2c_dw_dev_pm_ops),
},