Introduce the helper function ks_pcie_host_deinit() to undo the
configuration performed by the ks_pcie_host_init() function and also to
free the MSI Domains if the '.msi_init' callback was implemented which
would have made a call to dw_pcie_allocate_domains().
Signed-off-by: Siddharth Vadapalli <s-vadapalli@xxxxxx>
---
drivers/pci/controller/dwc/pci-keystone.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/drivers/pci/controller/dwc/pci-keystone.c b/drivers/pci/controller/dwc/pci-keystone.c
index 3afa298e89d1..f432818f6802 100644
--- a/drivers/pci/controller/dwc/pci-keystone.c
+++ b/drivers/pci/controller/dwc/pci-keystone.c
@@ -885,6 +885,18 @@ static int __init ks_pcie_init_id(struct keystone_pcie *ks_pcie)
return 0;
}
+static void ks_pcie_host_deinit(struct dw_pcie_rp *pp)
+{
+ struct dw_pcie *pci = to_dw_pcie_from_pp(pp);
+ struct keystone_pcie *ks_pcie = to_keystone_pcie(pci);
+
+ ks_pcie_stop_link(pci);
+ ks_pcie_free_msi_irq(ks_pcie);
+ ks_pcie_free_intx_irq(ks_pcie);
+ if (pci->pp.ops->msi_init)
+ dw_pcie_free_domains(pp);
+}
+
static int __init ks_pcie_host_init(struct dw_pcie_rp *pp)
{
struct dw_pcie *pci = to_dw_pcie_from_pp(pp);
@@ -929,11 +941,13 @@ static int __init ks_pcie_host_init(struct dw_pcie_rp *pp)
static const struct dw_pcie_host_ops ks_pcie_host_ops = {
.init = ks_pcie_host_init,
+ .deinit = ks_pcie_host_deinit,
.msi_init = ks_pcie_msi_host_init,
};
static const struct dw_pcie_host_ops ks_pcie_am654_host_ops = {
.init = ks_pcie_host_init,
+ .deinit = ks_pcie_host_deinit,
};
static irqreturn_t ks_pcie_err_irq_handler(int irq, void *priv)
--
2.43.0
