| Message ID | 20190207110924.30716-4-kishon@ti.com (mailing list archive) |
|---|---|
| State | Superseded, archived |
| Headers | show |
| Series | PCI: DWC/Keystone: MSI configuration cleanup | expand |
On Thu, Feb 07, 2019 at 04:39:18PM +0530, Kishon Vijay Abraham I wrote: > ks_pcie_get_irq_controller_info() was used to configure both MSI and > legacy interrupt. This will prevent MSI or legacy interrupt specific > intializations. Add separate functions to configure MSI and legacy > interrupts. > > Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> > --- > drivers/pci/controller/dwc/pci-keystone.c | 188 +++++++++++----------- > 1 file changed, 96 insertions(+), 92 deletions(-) > > diff --git a/drivers/pci/controller/dwc/pci-keystone.c b/drivers/pci/controller/dwc/pci-keystone.c > index 4cf9849d5a1d..b1d01751c1af 100644 > --- a/drivers/pci/controller/dwc/pci-keystone.c > +++ b/drivers/pci/controller/dwc/pci-keystone.c > @@ -87,11 +87,8 @@ struct keystone_pcie { > struct dw_pcie *pci; > /* PCI Device ID */ > u32 device_id; > - int num_legacy_host_irqs; > - int legacy_host_irqs[PCI_NUM_INTX]; > struct device_node *legacy_intc_np; > > - int num_msi_host_irqs; > int msi_host_irqs[MAX_MSI_HOST_IRQS]; > int num_lanes; > u32 num_viewport; > @@ -201,14 +198,6 @@ static int ks_pcie_msi_host_init(struct pcie_port *pp) > return dw_pcie_allocate_domains(pp); > } > > -static void ks_pcie_enable_legacy_irqs(struct keystone_pcie *ks_pcie) > -{ > - int i; > - > - for (i = 0; i < PCI_NUM_INTX; i++) > - ks_pcie_app_writel(ks_pcie, IRQ_ENABLE_SET(i), 0x1); > -} > - > static void ks_pcie_handle_legacy_irq(struct keystone_pcie *ks_pcie, > int offset) > { > @@ -490,17 +479,6 @@ static int __init ks_pcie_dw_host_init(struct keystone_pcie *ks_pcie) > > ks_pcie->app = *res; > > - /* Create legacy IRQ domain */ > - ks_pcie->legacy_irq_domain = > - irq_domain_add_linear(ks_pcie->legacy_intc_np, > - PCI_NUM_INTX, > - &ks_pcie_legacy_irq_domain_ops, > - NULL); > - if (!ks_pcie->legacy_irq_domain) { > - dev_err(dev, "Failed to add irq domain for legacy irqs\n"); > - return -EINVAL; > - } > - > return dw_pcie_host_init(pp); > } > > @@ -624,85 +602,117 @@ static void ks_pcie_legacy_irq_handler(struct irq_desc *desc) > chained_irq_exit(chip, desc); > } > > -static int ks_pcie_get_irq_controller_info(struct keystone_pcie *ks_pcie, > - char *controller, int *num_irqs) > +static int ks_pcie_config_msi_irq(struct keystone_pcie *ks_pcie) > { > - int temp, max_host_irqs, legacy = 1, *host_irqs; > struct device *dev = ks_pcie->pci->dev; > - struct device_node *np_pcie = dev->of_node, **np_temp; > - > - if (!strcmp(controller, "msi-interrupt-controller")) > - legacy = 0; > - > - if (legacy) { > - np_temp = &ks_pcie->legacy_intc_np; > - max_host_irqs = PCI_NUM_INTX; > - host_irqs = &ks_pcie->legacy_host_irqs[0]; > - } else { > - np_temp = &ks_pcie->msi_intc_np; > - max_host_irqs = MAX_MSI_HOST_IRQS; > - host_irqs = &ks_pcie->msi_host_irqs[0]; > - } > + struct device_node *np = ks_pcie->np; > + struct device_node *intc_np; > + int irq_count; > + int irq; > + int ret; > + int i; Nit: all int can be in one line. > - /* interrupt controller is in a child node */ > - *np_temp = of_get_child_by_name(np_pcie, controller); > - if (!(*np_temp)) { > - dev_err(dev, "Node for %s is absent\n", controller); > - return -EINVAL; > - } > + if (!IS_ENABLED(CONFIG_PCI_MSI)) > + return 0; > > - temp = of_irq_count(*np_temp); > - if (!temp) { > - dev_err(dev, "No IRQ entries in %s\n", controller); > - of_node_put(*np_temp); > + intc_np = of_get_child_by_name(np, "msi-interrupt-controller"); > + if (!intc_np) { > + dev_WARN(dev, "msi-interrupt-controller node is absent\n"); I do not think you can justify a backtrace for this error path, so convert it to a dev_warn() please. > return -EINVAL; > } > > - if (temp > max_host_irqs) > - dev_warn(dev, "Too many %s interrupts defined %u\n", > - (legacy ? "legacy" : "MSI"), temp); > + irq_count = of_irq_count(intc_np); > + if (!irq_count) { > + dev_err(dev, "No IRQ entries in msi-interrupt-controller\n"); > + ret = -EINVAL; > + goto err; > + } > > - /* > - * support upto max_host_irqs. In dt from index 0 to 3 (legacy) or 0 to > - * 7 (MSI) > - */ > - for (temp = 0; temp < max_host_irqs; temp++) { > - host_irqs[temp] = irq_of_parse_and_map(*np_temp, temp); > - if (!host_irqs[temp]) > - break; > + if (irq_count > MAX_MSI_HOST_IRQS) { > + dev_warn(dev, "Too many MSI interrupt lines defined %u\n", > + irq_count); > + irq_count = MAX_MSI_HOST_IRQS; > } > > - of_node_put(*np_temp); > + for (i = 0; i < irq_count; i++) { > + irq = irq_of_parse_and_map(intc_np, i); > + if (!irq) { > + ret = -EINVAL; > + goto err; > + } > + ks_pcie->msi_host_irqs[i] = irq; > > - if (temp) { > - *num_irqs = temp; > - return 0; > + irq_set_chained_handler_and_data(irq, ks_pcie_msi_irq_handler, > + ks_pcie); > } > > - return -EINVAL; > + of_node_put(intc_np); > + return 0; > + > +err: > + of_node_put(intc_np); > + return ret; > } > > -static void ks_pcie_setup_interrupts(struct keystone_pcie *ks_pcie) > +static int ks_pcie_config_legacy_irq(struct keystone_pcie *ks_pcie) > { > + struct device *dev = ks_pcie->pci->dev; > + struct irq_domain *legacy_irq_domain; > + struct device_node *np = ks_pcie->np; > + struct device_node *intc_np; > + int irq_count; > + int irq; > + int ret; > int i; > > - /* Legacy IRQ */ > - for (i = 0; i < ks_pcie->num_legacy_host_irqs; i++) { > - irq_set_chained_handler_and_data(ks_pcie->legacy_host_irqs[i], > + intc_np = of_get_child_by_name(np, "legacy-interrupt-controller"); > + if (!intc_np) { > + dev_WARN(dev, "legacy-interrupt-controller node is absent\n"); Likewise. Lorenzo > + return -EINVAL; > + } > + > + irq_count = of_irq_count(intc_np); > + if (!irq_count) { > + dev_err(dev, "No IRQ entries in legacy-interrupt-controller\n"); > + ret = -EINVAL; > + goto err; > + } > + > + for (i = 0; i < irq_count; i++) { > + irq = irq_of_parse_and_map(intc_np, i); > + if (!irq) { > + ret = -EINVAL; > + goto err; > + } > + irq_set_chained_handler_and_data(irq, > ks_pcie_legacy_irq_handler, > ks_pcie); > } > - ks_pcie_enable_legacy_irqs(ks_pcie); > - > - /* MSI IRQ */ > - if (IS_ENABLED(CONFIG_PCI_MSI)) { > - for (i = 0; i < ks_pcie->num_msi_host_irqs; i++) { > - irq_set_chained_handler_and_data(ks_pcie->msi_host_irqs[i], > - ks_pcie_msi_irq_handler, > - ks_pcie); > - } > + > + legacy_irq_domain = > + irq_domain_add_linear(intc_np, PCI_NUM_INTX, > + &ks_pcie_legacy_irq_domain_ops, NULL); > + if (!legacy_irq_domain) { > + dev_err(dev, "Failed to add irq domain for legacy irqs\n"); > + ret = -EINVAL; > + goto err; > } > + ks_pcie->legacy_irq_domain = legacy_irq_domain; > + > + for (i = 0; i < PCI_NUM_INTX; i++) > + ks_pcie_app_writel(ks_pcie, IRQ_ENABLE_SET(i), INTx_EN); > + > + of_node_put(intc_np); > + > + return 0; > + > +err: > + of_node_put(intc_np); > + return ret; > +} > > +static void ks_pcie_setup_interrupts(struct keystone_pcie *ks_pcie) > +{ > if (ks_pcie->error_irq > 0) > ks_pcie_enable_error_irq(ks_pcie); > } > @@ -756,6 +766,14 @@ static int __init ks_pcie_host_init(struct pcie_port *pp) > struct keystone_pcie *ks_pcie = to_keystone_pcie(pci); > int ret; > > + ret = ks_pcie_config_legacy_irq(ks_pcie); > + if (ret) > + return ret; > + > + ret = ks_pcie_config_msi_irq(ks_pcie); > + if (ret) > + return ret; > + > dw_pcie_setup_rc(pp); > > ks_pcie_establish_link(ks_pcie); > @@ -805,20 +823,6 @@ static int __init ks_pcie_add_pcie_port(struct keystone_pcie *ks_pcie, > struct device *dev = &pdev->dev; > int ret; > > - ret = ks_pcie_get_irq_controller_info(ks_pcie, > - "legacy-interrupt-controller", > - &ks_pcie->num_legacy_host_irqs); > - if (ret) > - return ret; > - > - if (IS_ENABLED(CONFIG_PCI_MSI)) { > - ret = ks_pcie_get_irq_controller_info(ks_pcie, > - "msi-interrupt-controller", > - &ks_pcie->num_msi_host_irqs); > - if (ret) > - return ret; > - } > - > /* > * Index 0 is the platform interrupt for error interrupt > * from RC. This is optional. > -- > 2.17.1 >
Hi, On 07/02/19 9:14 PM, Lorenzo Pieralisi wrote: > On Thu, Feb 07, 2019 at 04:39:18PM +0530, Kishon Vijay Abraham I wrote: >> ks_pcie_get_irq_controller_info() was used to configure both MSI and >> legacy interrupt. This will prevent MSI or legacy interrupt specific >> intializations. Add separate functions to configure MSI and legacy >> interrupts. >> >> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> >> --- >> drivers/pci/controller/dwc/pci-keystone.c | 188 +++++++++++----------- >> 1 file changed, 96 insertions(+), 92 deletions(-) >> >> diff --git a/drivers/pci/controller/dwc/pci-keystone.c b/drivers/pci/controller/dwc/pci-keystone.c >> index 4cf9849d5a1d..b1d01751c1af 100644 >> --- a/drivers/pci/controller/dwc/pci-keystone.c >> +++ b/drivers/pci/controller/dwc/pci-keystone.c >> @@ -87,11 +87,8 @@ struct keystone_pcie { >> struct dw_pcie *pci; >> /* PCI Device ID */ >> u32 device_id; >> - int num_legacy_host_irqs; >> - int legacy_host_irqs[PCI_NUM_INTX]; >> struct device_node *legacy_intc_np; >> >> - int num_msi_host_irqs; >> int msi_host_irqs[MAX_MSI_HOST_IRQS]; >> int num_lanes; >> u32 num_viewport; >> @@ -201,14 +198,6 @@ static int ks_pcie_msi_host_init(struct pcie_port *pp) >> return dw_pcie_allocate_domains(pp); >> } >> >> -static void ks_pcie_enable_legacy_irqs(struct keystone_pcie *ks_pcie) >> -{ >> - int i; >> - >> - for (i = 0; i < PCI_NUM_INTX; i++) >> - ks_pcie_app_writel(ks_pcie, IRQ_ENABLE_SET(i), 0x1); >> -} >> - >> static void ks_pcie_handle_legacy_irq(struct keystone_pcie *ks_pcie, >> int offset) >> { >> @@ -490,17 +479,6 @@ static int __init ks_pcie_dw_host_init(struct keystone_pcie *ks_pcie) >> >> ks_pcie->app = *res; >> >> - /* Create legacy IRQ domain */ >> - ks_pcie->legacy_irq_domain = >> - irq_domain_add_linear(ks_pcie->legacy_intc_np, >> - PCI_NUM_INTX, >> - &ks_pcie_legacy_irq_domain_ops, >> - NULL); >> - if (!ks_pcie->legacy_irq_domain) { >> - dev_err(dev, "Failed to add irq domain for legacy irqs\n"); >> - return -EINVAL; >> - } >> - >> return dw_pcie_host_init(pp); >> } >> >> @@ -624,85 +602,117 @@ static void ks_pcie_legacy_irq_handler(struct irq_desc *desc) >> chained_irq_exit(chip, desc); >> } >> >> -static int ks_pcie_get_irq_controller_info(struct keystone_pcie *ks_pcie, >> - char *controller, int *num_irqs) >> +static int ks_pcie_config_msi_irq(struct keystone_pcie *ks_pcie) >> { >> - int temp, max_host_irqs, legacy = 1, *host_irqs; >> struct device *dev = ks_pcie->pci->dev; >> - struct device_node *np_pcie = dev->of_node, **np_temp; >> - >> - if (!strcmp(controller, "msi-interrupt-controller")) >> - legacy = 0; >> - >> - if (legacy) { >> - np_temp = &ks_pcie->legacy_intc_np; >> - max_host_irqs = PCI_NUM_INTX; >> - host_irqs = &ks_pcie->legacy_host_irqs[0]; >> - } else { >> - np_temp = &ks_pcie->msi_intc_np; >> - max_host_irqs = MAX_MSI_HOST_IRQS; >> - host_irqs = &ks_pcie->msi_host_irqs[0]; >> - } >> + struct device_node *np = ks_pcie->np; >> + struct device_node *intc_np; >> + int irq_count; >> + int irq; >> + int ret; >> + int i; > > Nit: all int can be in one line. Okay. > >> - /* interrupt controller is in a child node */ >> - *np_temp = of_get_child_by_name(np_pcie, controller); >> - if (!(*np_temp)) { >> - dev_err(dev, "Node for %s is absent\n", controller); >> - return -EINVAL; >> - } >> + if (!IS_ENABLED(CONFIG_PCI_MSI)) >> + return 0; >> >> - temp = of_irq_count(*np_temp); >> - if (!temp) { >> - dev_err(dev, "No IRQ entries in %s\n", controller); >> - of_node_put(*np_temp); >> + intc_np = of_get_child_by_name(np, "msi-interrupt-controller"); >> + if (!intc_np) { >> + dev_WARN(dev, "msi-interrupt-controller node is absent\n"); > > I do not think you can justify a backtrace for this error path, so > convert it to a dev_warn() please. Sure. > >> return -EINVAL; >> } >> >> - if (temp > max_host_irqs) >> - dev_warn(dev, "Too many %s interrupts defined %u\n", >> - (legacy ? "legacy" : "MSI"), temp); >> + irq_count = of_irq_count(intc_np); >> + if (!irq_count) { >> + dev_err(dev, "No IRQ entries in msi-interrupt-controller\n"); >> + ret = -EINVAL; >> + goto err; >> + } >> >> - /* >> - * support upto max_host_irqs. In dt from index 0 to 3 (legacy) or 0 to >> - * 7 (MSI) >> - */ >> - for (temp = 0; temp < max_host_irqs; temp++) { >> - host_irqs[temp] = irq_of_parse_and_map(*np_temp, temp); >> - if (!host_irqs[temp]) >> - break; >> + if (irq_count > MAX_MSI_HOST_IRQS) { >> + dev_warn(dev, "Too many MSI interrupt lines defined %u\n", >> + irq_count); >> + irq_count = MAX_MSI_HOST_IRQS; >> } >> >> - of_node_put(*np_temp); >> + for (i = 0; i < irq_count; i++) { >> + irq = irq_of_parse_and_map(intc_np, i); >> + if (!irq) { >> + ret = -EINVAL; >> + goto err; >> + } >> + ks_pcie->msi_host_irqs[i] = irq; >> >> - if (temp) { >> - *num_irqs = temp; >> - return 0; >> + irq_set_chained_handler_and_data(irq, ks_pcie_msi_irq_handler, >> + ks_pcie); >> } >> >> - return -EINVAL; >> + of_node_put(intc_np); >> + return 0; >> + >> +err: >> + of_node_put(intc_np); >> + return ret; >> } >> >> -static void ks_pcie_setup_interrupts(struct keystone_pcie *ks_pcie) >> +static int ks_pcie_config_legacy_irq(struct keystone_pcie *ks_pcie) >> { >> + struct device *dev = ks_pcie->pci->dev; >> + struct irq_domain *legacy_irq_domain; >> + struct device_node *np = ks_pcie->np; >> + struct device_node *intc_np; >> + int irq_count; >> + int irq; >> + int ret; >> int i; >> >> - /* Legacy IRQ */ >> - for (i = 0; i < ks_pcie->num_legacy_host_irqs; i++) { >> - irq_set_chained_handler_and_data(ks_pcie->legacy_host_irqs[i], >> + intc_np = of_get_child_by_name(np, "legacy-interrupt-controller"); >> + if (!intc_np) { >> + dev_WARN(dev, "legacy-interrupt-controller node is absent\n"); > > Likewise. Okay. Thanks Kishon
diff --git a/drivers/pci/controller/dwc/pci-keystone.c b/drivers/pci/controller/dwc/pci-keystone.c index 4cf9849d5a1d..b1d01751c1af 100644 --- a/drivers/pci/controller/dwc/pci-keystone.c +++ b/drivers/pci/controller/dwc/pci-keystone.c @@ -87,11 +87,8 @@ struct keystone_pcie { struct dw_pcie *pci; /* PCI Device ID */ u32 device_id; - int num_legacy_host_irqs; - int legacy_host_irqs[PCI_NUM_INTX]; struct device_node *legacy_intc_np; - int num_msi_host_irqs; int msi_host_irqs[MAX_MSI_HOST_IRQS]; int num_lanes; u32 num_viewport; @@ -201,14 +198,6 @@ static int ks_pcie_msi_host_init(struct pcie_port *pp) return dw_pcie_allocate_domains(pp); } -static void ks_pcie_enable_legacy_irqs(struct keystone_pcie *ks_pcie) -{ - int i; - - for (i = 0; i < PCI_NUM_INTX; i++) - ks_pcie_app_writel(ks_pcie, IRQ_ENABLE_SET(i), 0x1); -} - static void ks_pcie_handle_legacy_irq(struct keystone_pcie *ks_pcie, int offset) { @@ -490,17 +479,6 @@ static int __init ks_pcie_dw_host_init(struct keystone_pcie *ks_pcie) ks_pcie->app = *res; - /* Create legacy IRQ domain */ - ks_pcie->legacy_irq_domain = - irq_domain_add_linear(ks_pcie->legacy_intc_np, - PCI_NUM_INTX, - &ks_pcie_legacy_irq_domain_ops, - NULL); - if (!ks_pcie->legacy_irq_domain) { - dev_err(dev, "Failed to add irq domain for legacy irqs\n"); - return -EINVAL; - } - return dw_pcie_host_init(pp); } @@ -624,85 +602,117 @@ static void ks_pcie_legacy_irq_handler(struct irq_desc *desc) chained_irq_exit(chip, desc); } -static int ks_pcie_get_irq_controller_info(struct keystone_pcie *ks_pcie, - char *controller, int *num_irqs) +static int ks_pcie_config_msi_irq(struct keystone_pcie *ks_pcie) { - int temp, max_host_irqs, legacy = 1, *host_irqs; struct device *dev = ks_pcie->pci->dev; - struct device_node *np_pcie = dev->of_node, **np_temp; - - if (!strcmp(controller, "msi-interrupt-controller")) - legacy = 0; - - if (legacy) { - np_temp = &ks_pcie->legacy_intc_np; - max_host_irqs = PCI_NUM_INTX; - host_irqs = &ks_pcie->legacy_host_irqs[0]; - } else { - np_temp = &ks_pcie->msi_intc_np; - max_host_irqs = MAX_MSI_HOST_IRQS; - host_irqs = &ks_pcie->msi_host_irqs[0]; - } + struct device_node *np = ks_pcie->np; + struct device_node *intc_np; + int irq_count; + int irq; + int ret; + int i; - /* interrupt controller is in a child node */ - *np_temp = of_get_child_by_name(np_pcie, controller); - if (!(*np_temp)) { - dev_err(dev, "Node for %s is absent\n", controller); - return -EINVAL; - } + if (!IS_ENABLED(CONFIG_PCI_MSI)) + return 0; - temp = of_irq_count(*np_temp); - if (!temp) { - dev_err(dev, "No IRQ entries in %s\n", controller); - of_node_put(*np_temp); + intc_np = of_get_child_by_name(np, "msi-interrupt-controller"); + if (!intc_np) { + dev_WARN(dev, "msi-interrupt-controller node is absent\n"); return -EINVAL; } - if (temp > max_host_irqs) - dev_warn(dev, "Too many %s interrupts defined %u\n", - (legacy ? "legacy" : "MSI"), temp); + irq_count = of_irq_count(intc_np); + if (!irq_count) { + dev_err(dev, "No IRQ entries in msi-interrupt-controller\n"); + ret = -EINVAL; + goto err; + } - /* - * support upto max_host_irqs. In dt from index 0 to 3 (legacy) or 0 to - * 7 (MSI) - */ - for (temp = 0; temp < max_host_irqs; temp++) { - host_irqs[temp] = irq_of_parse_and_map(*np_temp, temp); - if (!host_irqs[temp]) - break; + if (irq_count > MAX_MSI_HOST_IRQS) { + dev_warn(dev, "Too many MSI interrupt lines defined %u\n", + irq_count); + irq_count = MAX_MSI_HOST_IRQS; } - of_node_put(*np_temp); + for (i = 0; i < irq_count; i++) { + irq = irq_of_parse_and_map(intc_np, i); + if (!irq) { + ret = -EINVAL; + goto err; + } + ks_pcie->msi_host_irqs[i] = irq; - if (temp) { - *num_irqs = temp; - return 0; + irq_set_chained_handler_and_data(irq, ks_pcie_msi_irq_handler, + ks_pcie); } - return -EINVAL; + of_node_put(intc_np); + return 0; + +err: + of_node_put(intc_np); + return ret; } -static void ks_pcie_setup_interrupts(struct keystone_pcie *ks_pcie) +static int ks_pcie_config_legacy_irq(struct keystone_pcie *ks_pcie) { + struct device *dev = ks_pcie->pci->dev; + struct irq_domain *legacy_irq_domain; + struct device_node *np = ks_pcie->np; + struct device_node *intc_np; + int irq_count; + int irq; + int ret; int i; - /* Legacy IRQ */ - for (i = 0; i < ks_pcie->num_legacy_host_irqs; i++) { - irq_set_chained_handler_and_data(ks_pcie->legacy_host_irqs[i], + intc_np = of_get_child_by_name(np, "legacy-interrupt-controller"); + if (!intc_np) { + dev_WARN(dev, "legacy-interrupt-controller node is absent\n"); + return -EINVAL; + } + + irq_count = of_irq_count(intc_np); + if (!irq_count) { + dev_err(dev, "No IRQ entries in legacy-interrupt-controller\n"); + ret = -EINVAL; + goto err; + } + + for (i = 0; i < irq_count; i++) { + irq = irq_of_parse_and_map(intc_np, i); + if (!irq) { + ret = -EINVAL; + goto err; + } + irq_set_chained_handler_and_data(irq, ks_pcie_legacy_irq_handler, ks_pcie); } - ks_pcie_enable_legacy_irqs(ks_pcie); - - /* MSI IRQ */ - if (IS_ENABLED(CONFIG_PCI_MSI)) { - for (i = 0; i < ks_pcie->num_msi_host_irqs; i++) { - irq_set_chained_handler_and_data(ks_pcie->msi_host_irqs[i], - ks_pcie_msi_irq_handler, - ks_pcie); - } + + legacy_irq_domain = + irq_domain_add_linear(intc_np, PCI_NUM_INTX, + &ks_pcie_legacy_irq_domain_ops, NULL); + if (!legacy_irq_domain) { + dev_err(dev, "Failed to add irq domain for legacy irqs\n"); + ret = -EINVAL; + goto err; } + ks_pcie->legacy_irq_domain = legacy_irq_domain; + + for (i = 0; i < PCI_NUM_INTX; i++) + ks_pcie_app_writel(ks_pcie, IRQ_ENABLE_SET(i), INTx_EN); + + of_node_put(intc_np); + + return 0; + +err: + of_node_put(intc_np); + return ret; +} +static void ks_pcie_setup_interrupts(struct keystone_pcie *ks_pcie) +{ if (ks_pcie->error_irq > 0) ks_pcie_enable_error_irq(ks_pcie); } @@ -756,6 +766,14 @@ static int __init ks_pcie_host_init(struct pcie_port *pp) struct keystone_pcie *ks_pcie = to_keystone_pcie(pci); int ret; + ret = ks_pcie_config_legacy_irq(ks_pcie); + if (ret) + return ret; + + ret = ks_pcie_config_msi_irq(ks_pcie); + if (ret) + return ret; + dw_pcie_setup_rc(pp); ks_pcie_establish_link(ks_pcie); @@ -805,20 +823,6 @@ static int __init ks_pcie_add_pcie_port(struct keystone_pcie *ks_pcie, struct device *dev = &pdev->dev; int ret; - ret = ks_pcie_get_irq_controller_info(ks_pcie, - "legacy-interrupt-controller", - &ks_pcie->num_legacy_host_irqs); - if (ret) - return ret; - - if (IS_ENABLED(CONFIG_PCI_MSI)) { - ret = ks_pcie_get_irq_controller_info(ks_pcie, - "msi-interrupt-controller", - &ks_pcie->num_msi_host_irqs); - if (ret) - return ret; - } - /* * Index 0 is the platform interrupt for error interrupt * from RC. This is optional.
ks_pcie_get_irq_controller_info() was used to configure both MSI and legacy interrupt. This will prevent MSI or legacy interrupt specific intializations. Add separate functions to configure MSI and legacy interrupts. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> --- drivers/pci/controller/dwc/pci-keystone.c | 188 +++++++++++----------- 1 file changed, 96 insertions(+), 92 deletions(-)