diff options
Diffstat (limited to 'target/linux/generic/patches-3.13/025-bcma_backport.patch')
| -rw-r--r-- | target/linux/generic/patches-3.13/025-bcma_backport.patch | 317 |
1 files changed, 317 insertions, 0 deletions
diff --git a/target/linux/generic/patches-3.13/025-bcma_backport.patch b/target/linux/generic/patches-3.13/025-bcma_backport.patch new file mode 100644 index 0000000000..3aad2a16db --- /dev/null +++ b/target/linux/generic/patches-3.13/025-bcma_backport.patch @@ -0,0 +1,317 @@ +--- a/drivers/bcma/Kconfig ++++ b/drivers/bcma/Kconfig +@@ -75,6 +75,7 @@ config BCMA_DRIVER_GMAC_CMN + config BCMA_DRIVER_GPIO + bool "BCMA GPIO driver" + depends on BCMA && GPIOLIB ++ select IRQ_DOMAIN if BCMA_HOST_SOC + help + Driver to provide access to the GPIO pins of the bcma bus. + +--- a/drivers/bcma/bcma_private.h ++++ b/drivers/bcma/bcma_private.h +@@ -33,8 +33,6 @@ int __init bcma_bus_early_register(struc + int bcma_bus_suspend(struct bcma_bus *bus); + int bcma_bus_resume(struct bcma_bus *bus); + #endif +-struct bcma_device *bcma_find_core_unit(struct bcma_bus *bus, u16 coreid, +- u8 unit); + + /* scan.c */ + int bcma_bus_scan(struct bcma_bus *bus); +--- a/drivers/bcma/driver_chipcommon_sflash.c ++++ b/drivers/bcma/driver_chipcommon_sflash.c +@@ -38,7 +38,7 @@ static const struct bcma_sflash_tbl_e bc + { "M25P32", 0x15, 0x10000, 64, }, + { "M25P64", 0x16, 0x10000, 128, }, + { "M25FL128", 0x17, 0x10000, 256, }, +- { 0 }, ++ { NULL }, + }; + + static const struct bcma_sflash_tbl_e bcma_sflash_sst_tbl[] = { +@@ -56,7 +56,7 @@ static const struct bcma_sflash_tbl_e bc + { "SST25VF016", 0x41, 0x1000, 512, }, + { "SST25VF032", 0x4a, 0x1000, 1024, }, + { "SST25VF064", 0x4b, 0x1000, 2048, }, +- { 0 }, ++ { NULL }, + }; + + static const struct bcma_sflash_tbl_e bcma_sflash_at_tbl[] = { +@@ -67,7 +67,7 @@ static const struct bcma_sflash_tbl_e bc + { "AT45DB161", 0x2c, 512, 4096, }, + { "AT45DB321", 0x34, 512, 8192, }, + { "AT45DB642", 0x3c, 1024, 8192, }, +- { 0 }, ++ { NULL }, + }; + + static void bcma_sflash_cmd(struct bcma_drv_cc *cc, u32 opcode) +--- a/drivers/bcma/driver_gpio.c ++++ b/drivers/bcma/driver_gpio.c +@@ -9,6 +9,9 @@ + */ + + #include <linux/gpio.h> ++#include <linux/irq.h> ++#include <linux/interrupt.h> ++#include <linux/irqdomain.h> + #include <linux/export.h> + #include <linux/bcma/bcma.h> + +@@ -73,19 +76,136 @@ static void bcma_gpio_free(struct gpio_c + bcma_chipco_gpio_pullup(cc, 1 << gpio, 0); + } + ++#if IS_BUILTIN(CONFIG_BCMA_HOST_SOC) + static int bcma_gpio_to_irq(struct gpio_chip *chip, unsigned gpio) + { + struct bcma_drv_cc *cc = bcma_gpio_get_cc(chip); + + if (cc->core->bus->hosttype == BCMA_HOSTTYPE_SOC) +- return bcma_core_irq(cc->core); ++ return irq_find_mapping(cc->irq_domain, gpio); + else + return -EINVAL; + } + ++static void bcma_gpio_irq_unmask(struct irq_data *d) ++{ ++ struct bcma_drv_cc *cc = irq_data_get_irq_chip_data(d); ++ int gpio = irqd_to_hwirq(d); ++ u32 val = bcma_chipco_gpio_in(cc, BIT(gpio)); ++ ++ bcma_chipco_gpio_polarity(cc, BIT(gpio), val); ++ bcma_chipco_gpio_intmask(cc, BIT(gpio), BIT(gpio)); ++} ++ ++static void bcma_gpio_irq_mask(struct irq_data *d) ++{ ++ struct bcma_drv_cc *cc = irq_data_get_irq_chip_data(d); ++ int gpio = irqd_to_hwirq(d); ++ ++ bcma_chipco_gpio_intmask(cc, BIT(gpio), 0); ++} ++ ++static struct irq_chip bcma_gpio_irq_chip = { ++ .name = "BCMA-GPIO", ++ .irq_mask = bcma_gpio_irq_mask, ++ .irq_unmask = bcma_gpio_irq_unmask, ++}; ++ ++static irqreturn_t bcma_gpio_irq_handler(int irq, void *dev_id) ++{ ++ struct bcma_drv_cc *cc = dev_id; ++ u32 val = bcma_cc_read32(cc, BCMA_CC_GPIOIN); ++ u32 mask = bcma_cc_read32(cc, BCMA_CC_GPIOIRQ); ++ u32 pol = bcma_cc_read32(cc, BCMA_CC_GPIOPOL); ++ unsigned long irqs = (val ^ pol) & mask; ++ int gpio; ++ ++ if (!irqs) ++ return IRQ_NONE; ++ ++ for_each_set_bit(gpio, &irqs, cc->gpio.ngpio) ++ generic_handle_irq(bcma_gpio_to_irq(&cc->gpio, gpio)); ++ bcma_chipco_gpio_polarity(cc, irqs, val & irqs); ++ ++ return IRQ_HANDLED; ++} ++ ++static int bcma_gpio_irq_domain_init(struct bcma_drv_cc *cc) ++{ ++ struct gpio_chip *chip = &cc->gpio; ++ int gpio, hwirq, err; ++ ++ if (cc->core->bus->hosttype != BCMA_HOSTTYPE_SOC) ++ return 0; ++ ++ cc->irq_domain = irq_domain_add_linear(NULL, chip->ngpio, ++ &irq_domain_simple_ops, cc); ++ if (!cc->irq_domain) { ++ err = -ENODEV; ++ goto err_irq_domain; ++ } ++ for (gpio = 0; gpio < chip->ngpio; gpio++) { ++ int irq = irq_create_mapping(cc->irq_domain, gpio); ++ ++ irq_set_chip_data(irq, cc); ++ irq_set_chip_and_handler(irq, &bcma_gpio_irq_chip, ++ handle_simple_irq); ++ } ++ ++ hwirq = bcma_core_irq(cc->core); ++ err = request_irq(hwirq, bcma_gpio_irq_handler, IRQF_SHARED, "gpio", ++ cc); ++ if (err) ++ goto err_req_irq; ++ ++ bcma_chipco_gpio_intmask(cc, ~0, 0); ++ bcma_cc_set32(cc, BCMA_CC_IRQMASK, BCMA_CC_IRQ_GPIO); ++ ++ return 0; ++ ++err_req_irq: ++ for (gpio = 0; gpio < chip->ngpio; gpio++) { ++ int irq = irq_find_mapping(cc->irq_domain, gpio); ++ ++ irq_dispose_mapping(irq); ++ } ++ irq_domain_remove(cc->irq_domain); ++err_irq_domain: ++ return err; ++} ++ ++static void bcma_gpio_irq_domain_exit(struct bcma_drv_cc *cc) ++{ ++ struct gpio_chip *chip = &cc->gpio; ++ int gpio; ++ ++ if (cc->core->bus->hosttype != BCMA_HOSTTYPE_SOC) ++ return; ++ ++ bcma_cc_mask32(cc, BCMA_CC_IRQMASK, ~BCMA_CC_IRQ_GPIO); ++ free_irq(bcma_core_irq(cc->core), cc); ++ for (gpio = 0; gpio < chip->ngpio; gpio++) { ++ int irq = irq_find_mapping(cc->irq_domain, gpio); ++ ++ irq_dispose_mapping(irq); ++ } ++ irq_domain_remove(cc->irq_domain); ++} ++#else ++static int bcma_gpio_irq_domain_init(struct bcma_drv_cc *cc) ++{ ++ return 0; ++} ++ ++static void bcma_gpio_irq_domain_exit(struct bcma_drv_cc *cc) ++{ ++} ++#endif ++ + int bcma_gpio_init(struct bcma_drv_cc *cc) + { + struct gpio_chip *chip = &cc->gpio; ++ int err; + + chip->label = "bcma_gpio"; + chip->owner = THIS_MODULE; +@@ -95,7 +215,9 @@ int bcma_gpio_init(struct bcma_drv_cc *c + chip->set = bcma_gpio_set_value; + chip->direction_input = bcma_gpio_direction_input; + chip->direction_output = bcma_gpio_direction_output; ++#if IS_BUILTIN(CONFIG_BCMA_HOST_SOC) + chip->to_irq = bcma_gpio_to_irq; ++#endif + chip->ngpio = 16; + /* There is just one SoC in one device and its GPIO addresses should be + * deterministic to address them more easily. The other buses could get +@@ -105,10 +227,21 @@ int bcma_gpio_init(struct bcma_drv_cc *c + else + chip->base = -1; + +- return gpiochip_add(chip); ++ err = bcma_gpio_irq_domain_init(cc); ++ if (err) ++ return err; ++ ++ err = gpiochip_add(chip); ++ if (err) { ++ bcma_gpio_irq_domain_exit(cc); ++ return err; ++ } ++ ++ return 0; + } + + int bcma_gpio_unregister(struct bcma_drv_cc *cc) + { ++ bcma_gpio_irq_domain_exit(cc); + return gpiochip_remove(&cc->gpio); + } +--- a/drivers/bcma/host_pci.c ++++ b/drivers/bcma/host_pci.c +@@ -238,7 +238,6 @@ static void bcma_host_pci_remove(struct + pci_release_regions(dev); + pci_disable_device(dev); + kfree(bus); +- pci_set_drvdata(dev, NULL); + } + + #ifdef CONFIG_PM_SLEEP +@@ -270,7 +269,7 @@ static SIMPLE_DEV_PM_OPS(bcma_pm_ops, bc + + #endif /* CONFIG_PM_SLEEP */ + +-static DEFINE_PCI_DEVICE_TABLE(bcma_pci_bridge_tbl) = { ++static const struct pci_device_id bcma_pci_bridge_tbl[] = { + { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x0576) }, + { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4313) }, + { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 43224) }, +--- a/drivers/bcma/main.c ++++ b/drivers/bcma/main.c +@@ -78,18 +78,6 @@ static u16 bcma_cc_core_id(struct bcma_b + return BCMA_CORE_CHIPCOMMON; + } + +-struct bcma_device *bcma_find_core(struct bcma_bus *bus, u16 coreid) +-{ +- struct bcma_device *core; +- +- list_for_each_entry(core, &bus->cores, list) { +- if (core->id.id == coreid) +- return core; +- } +- return NULL; +-} +-EXPORT_SYMBOL_GPL(bcma_find_core); +- + struct bcma_device *bcma_find_core_unit(struct bcma_bus *bus, u16 coreid, + u8 unit) + { +@@ -101,6 +89,7 @@ struct bcma_device *bcma_find_core_unit( + } + return NULL; + } ++EXPORT_SYMBOL_GPL(bcma_find_core_unit); + + bool bcma_wait_value(struct bcma_device *core, u16 reg, u32 mask, u32 value, + int timeout) +@@ -176,6 +165,7 @@ static int bcma_register_cores(struct bc + bcma_err(bus, + "Could not register dev for core 0x%03X\n", + core->id.id); ++ put_device(&core->dev); + continue; + } + core->dev_registered = true; +--- a/include/linux/bcma/bcma.h ++++ b/include/linux/bcma/bcma.h +@@ -418,7 +418,14 @@ static inline void bcma_maskset16(struct + bcma_write16(cc, offset, (bcma_read16(cc, offset) & mask) | set); + } + +-extern struct bcma_device *bcma_find_core(struct bcma_bus *bus, u16 coreid); ++extern struct bcma_device *bcma_find_core_unit(struct bcma_bus *bus, u16 coreid, ++ u8 unit); ++static inline struct bcma_device *bcma_find_core(struct bcma_bus *bus, ++ u16 coreid) ++{ ++ return bcma_find_core_unit(bus, coreid, 0); ++} ++ + extern bool bcma_core_is_enabled(struct bcma_device *core); + extern void bcma_core_disable(struct bcma_device *core, u32 flags); + extern int bcma_core_enable(struct bcma_device *core, u32 flags); +--- a/include/linux/bcma/bcma_driver_chipcommon.h ++++ b/include/linux/bcma/bcma_driver_chipcommon.h +@@ -640,6 +640,7 @@ struct bcma_drv_cc { + spinlock_t gpio_lock; + #ifdef CONFIG_BCMA_DRIVER_GPIO + struct gpio_chip gpio; ++ struct irq_domain *irq_domain; + #endif + }; + |