[PATCH v2 05/10] PCI: keystone: Add ks_pcie_free_msi_irq() helper for cleanup
Manivannan Sadhasivam
mani at kernel.org
Fri Sep 19 11:32:34 PDT 2025
On Fri, Sep 12, 2025 at 05:46:16PM +0530, Siddharth Vadapalli wrote:
> Introduce the helper function ks_pcie_free_msi_irq() which will undo the
> configuration performed by the ks_pcie_config_msi_irq() function. This will
> be required for implementing a future helper function to undo the
> configuration performed by the ks_pcie_host_init() function.
>
> Signed-off-by: Siddharth Vadapalli <s-vadapalli at ti.com>
> ---
>
> v1: https://lore.kernel.org/r/20250903124505.365913-6-s-vadapalli@ti.com/
> No changes since v1.
>
> drivers/pci/controller/dwc/pci-keystone.c | 25 +++++++++++++++++++++++
> 1 file changed, 25 insertions(+)
>
> diff --git a/drivers/pci/controller/dwc/pci-keystone.c b/drivers/pci/controller/dwc/pci-keystone.c
> index d03e95bf7d54..81c3686688c0 100644
> --- a/drivers/pci/controller/dwc/pci-keystone.c
> +++ b/drivers/pci/controller/dwc/pci-keystone.c
> @@ -666,6 +666,31 @@ static void ks_pcie_intx_irq_handler(struct irq_desc *desc)
> chained_irq_exit(chip, desc);
> }
>
> +static void ks_pcie_free_msi_irq(struct keystone_pcie *ks_pcie)
> +{
> + struct device_node *np = ks_pcie->np;
> + struct device_node *intc_np;
> + int irq_count, irq, i;
> +
> + if (!IS_ENABLED(CONFIG_PCI_MSI))
Isn't the CONFIG_PCI_KEYSTONE_HOST always depend on PCI_MSI?
- Mani
--
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