diff options
Diffstat (limited to 'drivers/of')
| -rw-r--r-- | drivers/of/address.c | 6 | ||||
| -rw-r--r-- | drivers/of/fdt.c | 12 | ||||
| -rw-r--r-- | drivers/of/irq.c | 22 | ||||
| -rw-r--r-- | drivers/of/of_mdio.c | 30 | ||||
| -rw-r--r-- | drivers/of/platform.c | 10 |
5 files changed, 68 insertions, 12 deletions
diff --git a/drivers/of/address.c b/drivers/of/address.c index 8bfda6ade2c0..384574c3987c 100644 --- a/drivers/of/address.c +++ b/drivers/of/address.c @@ -845,10 +845,10 @@ struct device_node *of_find_matching_node_by_address(struct device_node *from, struct resource res; while (dn) { - if (of_address_to_resource(dn, 0, &res)) - continue; - if (res.start == base_address) + if (!of_address_to_resource(dn, 0, &res) && + res.start == base_address) return dn; + dn = of_find_matching_node(dn, matches); } diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c index 07496560e5b9..6e82bc42373b 100644 --- a/drivers/of/fdt.c +++ b/drivers/of/fdt.c @@ -967,7 +967,9 @@ int __init early_init_dt_scan_chosen(unsigned long node, const char *uname, } #ifdef CONFIG_HAVE_MEMBLOCK -#define MAX_PHYS_ADDR ((phys_addr_t)~0) +#ifndef MAX_MEMBLOCK_ADDR +#define MAX_MEMBLOCK_ADDR ((phys_addr_t)~0) +#endif void __init __weak early_init_dt_add_memory_arch(u64 base, u64 size) { @@ -984,16 +986,16 @@ void __init __weak early_init_dt_add_memory_arch(u64 base, u64 size) } size &= PAGE_MASK; - if (base > MAX_PHYS_ADDR) { + if (base > MAX_MEMBLOCK_ADDR) { pr_warning("Ignoring memory block 0x%llx - 0x%llx\n", base, base + size); return; } - if (base + size - 1 > MAX_PHYS_ADDR) { + if (base + size - 1 > MAX_MEMBLOCK_ADDR) { pr_warning("Ignoring memory range 0x%llx - 0x%llx\n", - ((u64)MAX_PHYS_ADDR) + 1, base + size); - size = MAX_PHYS_ADDR - base + 1; + ((u64)MAX_MEMBLOCK_ADDR) + 1, base + size); + size = MAX_MEMBLOCK_ADDR - base + 1; } if (base + size < phys_offset) { diff --git a/drivers/of/irq.c b/drivers/of/irq.c index 3cf7a01f557f..55317fa9c9dc 100644 --- a/drivers/of/irq.c +++ b/drivers/of/irq.c @@ -18,6 +18,7 @@ * driver. */ +#include <linux/device.h> #include <linux/errno.h> #include <linux/list.h> #include <linux/module.h> @@ -431,6 +432,7 @@ int of_irq_get_byname(struct device_node *dev, const char *name) return of_irq_get(dev, index); } +EXPORT_SYMBOL_GPL(of_irq_get_byname); /** * of_irq_count - Count the number of IRQs a node uses @@ -576,3 +578,23 @@ err: kfree(desc); } } + +/** + * of_msi_configure - Set the msi_domain field of a device + * @dev: device structure to associate with an MSI irq domain + * @np: device node for that device + */ +void of_msi_configure(struct device *dev, struct device_node *np) +{ + struct device_node *msi_np; + struct irq_domain *d; + + msi_np = of_parse_phandle(np, "msi-parent", 0); + if (!msi_np) + return; + + d = irq_find_matching_host(msi_np, DOMAIN_BUS_PLATFORM_MSI); + if (!d) + d = irq_find_host(msi_np); + dev_set_msi_domain(dev, d); +} diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c index fdc60db60829..1350fa25cdb0 100644 --- a/drivers/of/of_mdio.c +++ b/drivers/of/of_mdio.c @@ -16,6 +16,7 @@ #include <linux/phy.h> #include <linux/phy_fixed.h> #include <linux/of.h> +#include <linux/of_gpio.h> #include <linux/of_irq.h> #include <linux/of_mdio.h> #include <linux/module.h> @@ -266,7 +267,8 @@ EXPORT_SYMBOL(of_phy_attach); bool of_phy_is_fixed_link(struct device_node *np) { struct device_node *dn; - int len; + int len, err; + const char *managed; /* New binding */ dn = of_get_child_by_name(np, "fixed-link"); @@ -275,6 +277,10 @@ bool of_phy_is_fixed_link(struct device_node *np) return true; } + err = of_property_read_string(np, "managed", &managed); + if (err == 0 && strcmp(managed, "auto") != 0) + return true; + /* Old binding */ if (of_get_property(np, "fixed-link", &len) && len == (5 * sizeof(__be32))) @@ -289,8 +295,19 @@ int of_phy_register_fixed_link(struct device_node *np) struct fixed_phy_status status = {}; struct device_node *fixed_link_node; const __be32 *fixed_link_prop; - int len; + int link_gpio; + int len, err; struct phy_device *phy; + const char *managed; + + err = of_property_read_string(np, "managed", &managed); + if (err == 0) { + if (strcmp(managed, "in-band-status") == 0) { + /* status is zeroed, namely its .link member */ + phy = fixed_phy_register(PHY_POLL, &status, -1, np); + return IS_ERR(phy) ? PTR_ERR(phy) : 0; + } + } /* New binding */ fixed_link_node = of_get_child_by_name(np, "fixed-link"); @@ -303,8 +320,13 @@ int of_phy_register_fixed_link(struct device_node *np) status.pause = of_property_read_bool(fixed_link_node, "pause"); status.asym_pause = of_property_read_bool(fixed_link_node, "asym-pause"); + link_gpio = of_get_named_gpio_flags(fixed_link_node, + "link-gpios", 0, NULL); of_node_put(fixed_link_node); - phy = fixed_phy_register(PHY_POLL, &status, np); + if (link_gpio == -EPROBE_DEFER) + return -EPROBE_DEFER; + + phy = fixed_phy_register(PHY_POLL, &status, link_gpio, np); return IS_ERR(phy) ? PTR_ERR(phy) : 0; } @@ -316,7 +338,7 @@ int of_phy_register_fixed_link(struct device_node *np) status.speed = be32_to_cpu(fixed_link_prop[2]); status.pause = be32_to_cpu(fixed_link_prop[3]); status.asym_pause = be32_to_cpu(fixed_link_prop[4]); - phy = fixed_phy_register(PHY_POLL, &status, np); + phy = fixed_phy_register(PHY_POLL, &status, -1, np); return IS_ERR(phy) ? PTR_ERR(phy) : 0; } diff --git a/drivers/of/platform.c b/drivers/of/platform.c index ddf8e42c9367..1001efaedcb8 100644 --- a/drivers/of/platform.c +++ b/drivers/of/platform.c @@ -184,6 +184,7 @@ static struct platform_device *of_platform_device_create_pdata( dev->dev.bus = &platform_bus_type; dev->dev.platform_data = platform_data; of_dma_configure(&dev->dev, dev->dev.of_node); + of_msi_configure(&dev->dev, dev->dev.of_node); if (of_device_add(dev) != 0) { of_dma_deconfigure(&dev->dev); @@ -456,6 +457,15 @@ int of_platform_populate(struct device_node *root, } EXPORT_SYMBOL_GPL(of_platform_populate); +int of_platform_default_populate(struct device_node *root, + const struct of_dev_auxdata *lookup, + struct device *parent) +{ + return of_platform_populate(root, of_default_bus_match_table, lookup, + parent); +} +EXPORT_SYMBOL_GPL(of_platform_default_populate); + static int of_platform_device_destroy(struct device *dev, void *data) { /* Do not touch devices not populated from the device tree */ |