diff options
Diffstat (limited to 'target/linux/mvebu/patches-3.10/0073-of-pci-add-registry-of-MSI-chips.patch')
| -rw-r--r-- | target/linux/mvebu/patches-3.10/0073-of-pci-add-registry-of-MSI-chips.patch | 106 |
1 files changed, 0 insertions, 106 deletions
diff --git a/target/linux/mvebu/patches-3.10/0073-of-pci-add-registry-of-MSI-chips.patch b/target/linux/mvebu/patches-3.10/0073-of-pci-add-registry-of-MSI-chips.patch deleted file mode 100644 index 641b8d1701..0000000000 --- a/target/linux/mvebu/patches-3.10/0073-of-pci-add-registry-of-MSI-chips.patch +++ /dev/null @@ -1,106 +0,0 @@ -From a05852e828063b6731fcac543b87367c137c16f8 Mon Sep 17 00:00:00 2001 -From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> -Date: Thu, 6 Jun 2013 18:21:18 +0200 -Subject: [PATCH 073/203] of: pci: add registry of MSI chips - -This commit adds a very basic registry of msi_chip structures, so that -an IRQ controller driver can register an msi_chip, and a PCIe host -controller can find it, based on a 'struct device_node'. - -Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> -Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> -Acked-by: Rob Herring <rob.herring@calxeda.com> ---- - drivers/of/of_pci.c | 45 +++++++++++++++++++++++++++++++++++++++++++++ - include/linux/msi.h | 2 ++ - include/linux/of_pci.h | 12 ++++++++++++ - 3 files changed, 59 insertions(+) - ---- a/drivers/of/of_pci.c -+++ b/drivers/of/of_pci.c -@@ -89,3 +89,48 @@ int of_pci_parse_bus_range(struct device - return 0; - } - EXPORT_SYMBOL_GPL(of_pci_parse_bus_range); -+ -+#ifdef CONFIG_PCI_MSI -+ -+static LIST_HEAD(of_pci_msi_chip_list); -+static DEFINE_MUTEX(of_pci_msi_chip_mutex); -+ -+int of_pci_msi_chip_add(struct msi_chip *chip) -+{ -+ if (!of_property_read_bool(chip->of_node, "msi-controller")) -+ return -EINVAL; -+ -+ mutex_lock(&of_pci_msi_chip_mutex); -+ list_add(&chip->list, &of_pci_msi_chip_list); -+ mutex_unlock(&of_pci_msi_chip_mutex); -+ -+ return 0; -+} -+EXPORT_SYMBOL_GPL(of_pci_msi_chip_add); -+ -+void of_pci_msi_chip_remove(struct msi_chip *chip) -+{ -+ mutex_lock(&of_pci_msi_chip_mutex); -+ list_del(&chip->list); -+ mutex_unlock(&of_pci_msi_chip_mutex); -+} -+EXPORT_SYMBOL_GPL(of_pci_msi_chip_remove); -+ -+struct msi_chip *of_pci_find_msi_chip_by_node(struct device_node *of_node) -+{ -+ struct msi_chip *c; -+ -+ mutex_lock(&of_pci_msi_chip_mutex); -+ list_for_each_entry(c, &of_pci_msi_chip_list, list) { -+ if (c->of_node == of_node) { -+ mutex_unlock(&of_pci_msi_chip_mutex); -+ return c; -+ } -+ } -+ mutex_unlock(&of_pci_msi_chip_mutex); -+ -+ return NULL; -+} -+EXPORT_SYMBOL_GPL(of_pci_find_msi_chip_by_node); -+ -+#endif /* CONFIG_PCI_MSI */ ---- a/include/linux/msi.h -+++ b/include/linux/msi.h -@@ -67,6 +67,8 @@ void default_restore_msi_irqs(struct pci - struct msi_chip { - struct module *owner; - struct device *dev; -+ struct device_node *of_node; -+ struct list_head list; - - int (*setup_irq)(struct msi_chip *chip, struct pci_dev *dev, - struct msi_desc *desc); ---- a/include/linux/of_pci.h -+++ b/include/linux/of_pci.h -@@ -2,6 +2,7 @@ - #define __OF_PCI_H - - #include <linux/pci.h> -+#include <linux/msi.h> - - struct pci_dev; - struct of_irq; -@@ -13,4 +14,15 @@ struct device_node *of_pci_find_child_de - int of_pci_get_devfn(struct device_node *np); - int of_pci_parse_bus_range(struct device_node *node, struct resource *res); - -+#if defined(CONFIG_OF) && defined(CONFIG_PCI_MSI) -+int of_pci_msi_chip_add(struct msi_chip *chip); -+void of_pci_msi_chip_remove(struct msi_chip *chip); -+struct msi_chip *of_pci_find_msi_chip_by_node(struct device_node *of_node); -+#else -+static inline int of_pci_msi_chip_add(struct msi_chip *chip) { return -EINVAL; } -+static inline void of_pci_msi_chip_remove(struct msi_chip *chip) { } -+static inline struct msi_chip * -+of_pci_find_msi_chip_by_node(struct device_node *of_node) { return NULL; } -+#endif -+ - #endif |