Adds a callback that defines the maximum number of vectors that can be use
by the Root Complex.
Since this is a parameter associated to each SoC IP setting, makes sense to
be configurable and easily visible to future modifications.
The designware IP supports a maximum of 256 vectors.
Signed-off-by: Gustavo Pimentel <gustavo.pimentel@xxxxxxxxxxxx>
---
Change v1->v2:
- Nothing changed, just to follow the patch set version.
drivers/pci/dwc/pcie-designware-plat.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/pci/dwc/pcie-designware-plat.c b/drivers/pci/dwc/pcie-designware-plat.c
index 5382a7a..94da252 100644
--- a/drivers/pci/dwc/pcie-designware-plat.c
+++ b/drivers/pci/dwc/pcie-designware-plat.c
@@ -48,8 +48,14 @@ static int dw_plat_pcie_host_init(struct pcie_port *pp)
return 0;
}
+static void dw_plat_set_num_vectors(struct pcie_port *pp)
+{
+ pp->num_vectors = MAX_MSI_IRQS;
+}
+
static const struct dw_pcie_host_ops dw_plat_pcie_host_ops = {
.host_init = dw_plat_pcie_host_init,
+ .set_num_vectors = dw_plat_set_num_vectors,
};
static int dw_plat_pcie_establish_link(struct dw_pcie *pci)
--
2.7.4
--
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