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authorJohn Crispin <john@phrozen.org>2018-08-28 11:58:50 +0200
committerJohn Crispin <john@phrozen.org>2018-08-28 11:58:50 +0200
commitfd20fdd0b836c5e6b3c8feb1a5ff5e475ddcc978 (patch)
treeb9da657556280eb8bfb1c53eb5148e972d364794 /target/linux
parent1d4d156a7ce67988f922c470f622f6dd2a5c161b (diff)
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ath79: fix remove irq code from pci driver patch
This patch got mangled in the void while rebasing it. Signed-off-by: John Crispin <john@phrozen.org>
Diffstat (limited to 'target/linux')
-rw-r--r--target/linux/ath79/patches-4.14/0036-MIPS-ath79-remove-irq-code-from-pci.patch141
1 files changed, 141 insertions, 0 deletions
diff --git a/target/linux/ath79/patches-4.14/0036-MIPS-ath79-remove-irq-code-from-pci.patch b/target/linux/ath79/patches-4.14/0036-MIPS-ath79-remove-irq-code-from-pci.patch
index e69de29bb2..b0e610a0e2 100644
--- a/target/linux/ath79/patches-4.14/0036-MIPS-ath79-remove-irq-code-from-pci.patch
+++ b/target/linux/ath79/patches-4.14/0036-MIPS-ath79-remove-irq-code-from-pci.patch
@@ -0,0 +1,141 @@
+Index: linux-4.14.66/arch/mips/pci/pci-ar71xx.c
+===================================================================
+--- linux-4.14.66.orig/arch/mips/pci/pci-ar71xx.c
++++ linux-4.14.66/arch/mips/pci/pci-ar71xx.c
+@@ -54,11 +54,9 @@
+ struct ar71xx_pci_controller {
+ struct device_node *np;
+ void __iomem *cfg_base;
+- int irq;
+ struct pci_controller pci_ctrl;
+ struct resource io_res;
+ struct resource mem_res;
+- struct irq_domain *domain;
+ };
+
+ /* Byte lane enable bits */
+@@ -230,104 +228,6 @@ static struct pci_ops ar71xx_pci_ops = {
+ .write = ar71xx_pci_write_config,
+ };
+
+-static void ar71xx_pci_irq_handler(struct irq_desc *desc)
+-{
+- void __iomem *base = ath79_reset_base;
+- struct irq_chip *chip = irq_desc_get_chip(desc);
+- struct ar71xx_pci_controller *apc = irq_desc_get_handler_data(desc);
+- u32 pending;
+-
+- chained_irq_enter(chip, desc);
+- pending = __raw_readl(base + AR71XX_RESET_REG_PCI_INT_STATUS) &
+- __raw_readl(base + AR71XX_RESET_REG_PCI_INT_ENABLE);
+-
+- if (pending & AR71XX_PCI_INT_DEV0)
+- generic_handle_irq(irq_linear_revmap(apc->domain, 1));
+-
+- else if (pending & AR71XX_PCI_INT_DEV1)
+- generic_handle_irq(irq_linear_revmap(apc->domain, 2));
+-
+- else if (pending & AR71XX_PCI_INT_DEV2)
+- generic_handle_irq(irq_linear_revmap(apc->domain, 3));
+-
+- else if (pending & AR71XX_PCI_INT_CORE)
+- generic_handle_irq(irq_linear_revmap(apc->domain, 4));
+-
+- else
+- spurious_interrupt();
+- chained_irq_exit(chip, desc);
+-}
+-
+-static void ar71xx_pci_irq_unmask(struct irq_data *d)
+-{
+- struct ar71xx_pci_controller *apc;
+- unsigned int irq;
+- void __iomem *base = ath79_reset_base;
+- u32 t;
+-
+- apc = irq_data_get_irq_chip_data(d);
+- irq = irq_linear_revmap(apc->domain, d->irq);
+-
+- t = __raw_readl(base + AR71XX_RESET_REG_PCI_INT_ENABLE);
+- __raw_writel(t | (1 << irq), base + AR71XX_RESET_REG_PCI_INT_ENABLE);
+-
+- /* flush write */
+- __raw_readl(base + AR71XX_RESET_REG_PCI_INT_ENABLE);
+-}
+-
+-static void ar71xx_pci_irq_mask(struct irq_data *d)
+-{
+- struct ar71xx_pci_controller *apc;
+- unsigned int irq;
+- void __iomem *base = ath79_reset_base;
+- u32 t;
+-
+- apc = irq_data_get_irq_chip_data(d);
+- irq = irq_linear_revmap(apc->domain, d->irq);
+-
+- t = __raw_readl(base + AR71XX_RESET_REG_PCI_INT_ENABLE);
+- __raw_writel(t & ~(1 << irq), base + AR71XX_RESET_REG_PCI_INT_ENABLE);
+-
+- /* flush write */
+- __raw_readl(base + AR71XX_RESET_REG_PCI_INT_ENABLE);
+-}
+-
+-static struct irq_chip ar71xx_pci_irq_chip = {
+- .name = "AR71XX PCI",
+- .irq_mask = ar71xx_pci_irq_mask,
+- .irq_unmask = ar71xx_pci_irq_unmask,
+- .irq_mask_ack = ar71xx_pci_irq_mask,
+-};
+-
+-static int ar71xx_pci_irq_map(struct irq_domain *d,
+- unsigned int irq, irq_hw_number_t hw)
+-{
+- struct ar71xx_pci_controller *apc = d->host_data;
+-
+- irq_set_chip_and_handler(irq, &ar71xx_pci_irq_chip, handle_level_irq);
+- irq_set_chip_data(irq, apc);
+-
+- return 0;
+-}
+-
+-static const struct irq_domain_ops ar71xx_pci_domain_ops = {
+- .xlate = irq_domain_xlate_onecell,
+- .map = ar71xx_pci_irq_map,
+-};
+-
+-static void ar71xx_pci_irq_init(struct ar71xx_pci_controller *apc)
+-{
+- void __iomem *base = ath79_reset_base;
+-
+- __raw_writel(0, base + AR71XX_RESET_REG_PCI_INT_ENABLE);
+- __raw_writel(0, base + AR71XX_RESET_REG_PCI_INT_STATUS);
+-
+- apc->domain = irq_domain_add_linear(apc->np, AR71XX_PCI_IRQ_COUNT,
+- &ar71xx_pci_domain_ops, apc);
+- irq_set_chained_handler_and_data(apc->irq, ar71xx_pci_irq_handler,
+- apc);
+-}
+-
+ static void ar71xx_pci_reset(void)
+ {
+ ath79_device_reset_set(AR71XX_RESET_PCI_BUS | AR71XX_RESET_PCI_CORE);
+@@ -361,10 +261,6 @@ static int ar71xx_pci_probe(struct platf
+ if (IS_ERR(apc->cfg_base))
+ return PTR_ERR(apc->cfg_base);
+
+- apc->irq = platform_get_irq(pdev, 0);
+- if (apc->irq < 0)
+- return -EINVAL;
+-
+ ar71xx_pci_reset();
+
+ /* setup COMMAND register */
+@@ -375,8 +271,6 @@ static int ar71xx_pci_probe(struct platf
+ /* clear bus errors */
+ ar71xx_pci_check_error(apc, 1);
+
+- ar71xx_pci_irq_init(apc);
+-
+ apc->np = pdev->dev.of_node;
+ apc->pci_ctrl.pci_ops = &ar71xx_pci_ops;
+ apc->pci_ctrl.mem_resource = &apc->mem_res;