UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

PCI: dwc: Drop the .set_num_vectors() host op 

There's no reason for the .set_num_vectors() host op. Drivers needing a
non-default value can just initialize pcie_port.num_vectors directly.

Link: https://lore.kernel.org/r/20201105211159.1814485-8-robh@kernel.org
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Jingoo Han <jingoohan1@gmail.com>
Cc: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Jonathan Hunter <jonathanh@nvidia.com>
Cc: linux-tegra@vger.kernel.org
This commit is contained in:
Rob Herring 2020-11-05 15:11:50 -06:00 committed by Lorenzo Pieralisi
parent 7f170d35f5
commit 331e9bcead
4 changed files with 6 additions and 28 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
drivers/pci/controller/dwc/pcie-designware-host.c
View File

@ -365,22 +365,11 @@ int dw_pcie_host_init(struct pcie_port *pp)
pci->link_gen = of_pci_get_max_link_speed(np);
if (pci_msi_enabled()) {
/*
* If a specific SoC driver needs to change the
* default number of vectors, it needs to implement
* the set_num_vectors callback.
*/
if (!pp->ops->set_num_vectors) {
if (!pp->num_vectors) {
pp->num_vectors = MSI_DEF_NUM_VECTORS;
} else {
pp->ops->set_num_vectors(pp);
if (pp->num_vectors > MAX_MSI_IRQS ||
pp->num_vectors == 0) {
dev_err(dev,
"Invalid number of vectors\n");
return -EINVAL;
}
} else if (pp->num_vectors > MAX_MSI_IRQS) {
dev_err(dev, "Invalid number of vectors\n");
return -EINVAL;
}
if (!pp->ops->msi_host_init) {

7
drivers/pci/controller/dwc/pcie-designware-plat.c
View File

@ -44,14 +44,8 @@ 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)
@ -128,6 +122,7 @@ static int dw_plat_add_pcie_port(struct dw_plat_pcie *dw_plat_pcie,
return pp->msi_irq;
}
pp->num_vectors = MAX_MSI_IRQS;
pp->ops = &dw_plat_pcie_host_ops;
ret = dw_pcie_host_init(pp);

1
drivers/pci/controller/dwc/pcie-designware.h
View File

@ -172,7 +172,6 @@ enum dw_pcie_device_mode {
struct dw_pcie_host_ops {
int (*host_init)(struct pcie_port *pp);
void (*set_num_vectors)(struct pcie_port *pp);
int (*msi_host_init)(struct pcie_port *pp);
};

7
drivers/pci/controller/dwc/pcie-tegra194.c
View File

@ -990,11 +990,6 @@ static int tegra_pcie_dw_link_up(struct dw_pcie *pci)
return !!(val & PCI_EXP_LNKSTA_DLLLA);
}
static void tegra_pcie_set_msi_vec_num(struct pcie_port *pp)
{
pp->num_vectors = MAX_MSI_IRQS;
}
static int tegra_pcie_dw_start_link(struct dw_pcie *pci)
{
struct tegra_pcie_dw *pcie = to_tegra_pcie(pci);
@ -1019,7 +1014,6 @@ static const struct dw_pcie_ops tegra_dw_pcie_ops = {
static struct dw_pcie_host_ops tegra_pcie_dw_host_ops = {
.host_init = tegra_pcie_dw_host_init,
.set_num_vectors = tegra_pcie_set_msi_vec_num,
};
static void tegra_pcie_disable_phy(struct tegra_pcie_dw *pcie)
@ -1995,6 +1989,7 @@ static int tegra_pcie_dw_probe(struct platform_device *pdev)
pci->n_fts[1] = FTS_VAL;
pp = &pci->pp;
pp->num_vectors = MAX_MSI_IRQS;
pcie->dev = &pdev->dev;
pcie->mode = (enum dw_pcie_device_mode)data->mode;