PCI: Kill off set_irq_flags() usage

set_irq_flags is ARM-specific with custom flags which have genirq
equivalents.  Convert drivers to use the genirq interfaces directly, so we
can kill off set_irq_flags.  The translation of flags is as follows:

  IRQF_VALID -> !IRQ_NOREQUEST
  IRQF_PROBE -> !IRQ_NOPROBE
  IRQF_NOAUTOEN -> IRQ_NOAUTOEN

For IRQs managed by an irqdomain, the irqdomain core code handles clearing
and setting IRQ_NOREQUEST already, so there is no need to do this in .map()
functions, and we can simply remove the set_irq_flags calls.  Some users
also modify IRQ_NOPROBE, and this has been maintained although it is not
clear that is really needed.  There appears to be a great deal of blind
copy and paste of this code.

Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Jingoo Han <jingoohan1@gmail.com>
CC: Kishon Vijay Abraham I <kishon@ti.com>
CC: Murali Karicheri <m-karicheri2@ti.com>
CC: Thierry Reding <thierry.reding@gmail.com>
CC: Stephen Warren <swarren@wwwdotorg.org>
CC: Alexandre Courbot <gnurou@gmail.com>
CC: Jingoo Han <jingoohan1@gmail.com>
CC: Pratyush Anand <pratyush.anand@gmail.com>
CC: Simon Horman <horms@verge.net.au>
CC: Michal Simek <michal.simek@xilinx.com>
CC: "Sören Brinkmann" <soren.brinkmann@xilinx.com>

7 files changed, 0 insertions, 9 deletions

diff --git a/drivers/pci/host/pci-dra7xx.c b/drivers/pci/host/pci-dra7xx.c
index 80db09e47800..1a0d124b199a 100644
--- a/drivers/pci/host/pci-dra7xx.c
+++ b/drivers/pci/host/pci-dra7xx.c
@@ -155,7 +155,6 @@ static int dra7xx_pcie_intx_map(struct irq_domain *domain, unsigned int irq,
 {
 	irq_set_chip_and_handler(irq, &dummy_irq_chip, handle_simple_irq);
 	irq_set_chip_data(irq, domain->host_data);
-	set_irq_flags(irq, IRQF_VALID);
 
 	return 0;
 }
diff --git a/drivers/pci/host/pci-keystone-dw.c b/drivers/pci/host/pci-keystone-dw.c
index f34892e0edb4..f1d0749ebbf0 100644
--- a/drivers/pci/host/pci-keystone-dw.c
+++ b/drivers/pci/host/pci-keystone-dw.c
@@ -196,7 +196,6 @@ static int ks_dw_pcie_msi_map(struct irq_domain *domain, unsigned int irq,
 	irq_set_chip_and_handler(irq, &ks_dw_pcie_msi_irq_chip,
 				 handle_level_irq);
 	irq_set_chip_data(irq, domain->host_data);
-	set_irq_flags(irq, IRQF_VALID);
 
 	return 0;
 }
@@ -277,7 +276,6 @@ static int ks_dw_pcie_init_legacy_irq_map(struct irq_domain *d,
 	irq_set_chip_and_handler(irq, &ks_dw_pcie_legacy_irq_chip,
 				 handle_level_irq);
 	irq_set_chip_data(irq, d->host_data);
-	set_irq_flags(irq, IRQF_VALID);
 
 	return 0;
 }
diff --git a/drivers/pci/host/pci-tegra.c b/drivers/pci/host/pci-tegra.c
index 10c05718dbfd..81df0c1fe063 100644
--- a/drivers/pci/host/pci-tegra.c
+++ b/drivers/pci/host/pci-tegra.c
@@ -1248,7 +1248,6 @@ static int tegra_msi_map(struct irq_domain *domain, unsigned int irq,
 {
 	irq_set_chip_and_handler(irq, &tegra_msi_irq_chip, handle_simple_irq);
 	irq_set_chip_data(irq, domain->host_data);
-	set_irq_flags(irq, IRQF_VALID);
 
 	tegra_cpuidle_pcie_irqs_in_use();
 
diff --git a/drivers/pci/host/pci-xgene-msi.c b/drivers/pci/host/pci-xgene-msi.c
index 2d31d4d6fd08..8e559d181be1 100644
--- a/drivers/pci/host/pci-xgene-msi.c
+++ b/drivers/pci/host/pci-xgene-msi.c
@@ -223,7 +223,6 @@ static int xgene_irq_domain_alloc(struct irq_domain *domain, unsigned int virq,
 	irq_domain_set_info(domain, virq, msi_irq,
 			    &xgene_msi_bottom_irq_chip, domain->host_data,
 			    handle_simple_irq, NULL, NULL);
-	set_irq_flags(virq, IRQF_VALID);
 
 	return 0;
 }
diff --git a/drivers/pci/host/pcie-designware.c b/drivers/pci/host/pcie-designware.c
index 69486be7181e..5c6b562e5781 100644
--- a/drivers/pci/host/pcie-designware.c
+++ b/drivers/pci/host/pcie-designware.c
@@ -350,7 +350,6 @@ static int dw_pcie_msi_map(struct irq_domain *domain, unsigned int irq,
 {
 	irq_set_chip_and_handler(irq, &dw_msi_irq_chip, handle_simple_irq);
 	irq_set_chip_data(irq, domain->host_data);
-	set_irq_flags(irq, IRQF_VALID);
 
 	return 0;
 }
diff --git a/drivers/pci/host/pcie-rcar.c b/drivers/pci/host/pcie-rcar.c
index c086210f2ffd..7678fe0820d7 100644
--- a/drivers/pci/host/pcie-rcar.c
+++ b/drivers/pci/host/pcie-rcar.c
@@ -664,7 +664,6 @@ static int rcar_msi_map(struct irq_domain *domain, unsigned int irq,
 {
 	irq_set_chip_and_handler(irq, &rcar_msi_irq_chip, handle_simple_irq);
 	irq_set_chip_data(irq, domain->host_data);
-	set_irq_flags(irq, IRQF_VALID);
 
 	return 0;
 }
diff --git a/drivers/pci/host/pcie-xilinx.c b/drivers/pci/host/pcie-xilinx.c
index f1a06a091ccb..7201511972ad 100644
--- a/drivers/pci/host/pcie-xilinx.c
+++ b/drivers/pci/host/pcie-xilinx.c
@@ -338,7 +338,6 @@ static int xilinx_pcie_msi_map(struct irq_domain *domain, unsigned int irq,
 {
 	irq_set_chip_and_handler(irq, &xilinx_msi_irq_chip, handle_simple_irq);
 	irq_set_chip_data(irq, domain->host_data);
-	set_irq_flags(irq, IRQF_VALID);
 
 	return 0;
 }
@@ -377,7 +376,6 @@ static int xilinx_pcie_intx_map(struct irq_domain *domain, unsigned int irq,
 {
 	irq_set_chip_and_handler(irq, &dummy_irq_chip, handle_simple_irq);
 	irq_set_chip_data(irq, domain->host_data);
-	set_irq_flags(irq, IRQF_VALID);
 
 	return 0;
 }