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53cd2fdb00
bus->host_pdev is part of a union so bus->host_pdev != NULL is probably
also true for PCIe devices, because there it accesses bus->host_pci. If
we access the dev member at the offset defined in struct
platform_device in struct pci_dev instead we probably get something
else.
This patch adds a new function which returns the host dev struct and
NULL if we do not have a host dev. When this gets registered on MIPS
brcm47xx we do not have a host dev in some situations.
This function could also be used in other places.
This problem was introduced in this commit:
commit cae761b5a6
Author: Rafa? Mi?ecki <zajec5@gmail.com>
Date: Sun Jun 28 17:17:13 2015 +0200
bcma: populate bus DT subnodes as platform_device-s
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
204 lines
5.8 KiB
C
204 lines
5.8 KiB
C
#ifndef LINUX_BCMA_PRIVATE_H_
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#define LINUX_BCMA_PRIVATE_H_
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#ifndef pr_fmt
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#endif
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#include <linux/bcma/bcma.h>
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#include <linux/delay.h>
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#define BCMA_CORE_SIZE 0x1000
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#define bcma_err(bus, fmt, ...) \
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pr_err("bus%d: " fmt, (bus)->num, ##__VA_ARGS__)
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#define bcma_warn(bus, fmt, ...) \
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pr_warn("bus%d: " fmt, (bus)->num, ##__VA_ARGS__)
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#define bcma_info(bus, fmt, ...) \
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pr_info("bus%d: " fmt, (bus)->num, ##__VA_ARGS__)
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#define bcma_debug(bus, fmt, ...) \
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pr_debug("bus%d: " fmt, (bus)->num, ##__VA_ARGS__)
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struct bcma_bus;
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/* main.c */
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bool bcma_wait_value(struct bcma_device *core, u16 reg, u32 mask, u32 value,
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int timeout);
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void bcma_prepare_core(struct bcma_bus *bus, struct bcma_device *core);
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void bcma_init_bus(struct bcma_bus *bus);
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void bcma_unregister_cores(struct bcma_bus *bus);
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int bcma_bus_register(struct bcma_bus *bus);
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void bcma_bus_unregister(struct bcma_bus *bus);
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int __init bcma_bus_early_register(struct bcma_bus *bus);
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#ifdef CONFIG_PM
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int bcma_bus_suspend(struct bcma_bus *bus);
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int bcma_bus_resume(struct bcma_bus *bus);
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#endif
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struct device *bcma_bus_get_host_dev(struct bcma_bus *bus);
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/* scan.c */
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void bcma_detect_chip(struct bcma_bus *bus);
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int bcma_bus_scan(struct bcma_bus *bus);
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/* sprom.c */
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int bcma_sprom_get(struct bcma_bus *bus);
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/* driver_chipcommon.c */
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void bcma_core_chipcommon_early_init(struct bcma_drv_cc *cc);
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void bcma_core_chipcommon_init(struct bcma_drv_cc *cc);
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void bcma_chipco_bcm4331_ext_pa_lines_ctl(struct bcma_drv_cc *cc, bool enable);
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#ifdef CONFIG_BCMA_DRIVER_MIPS
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void bcma_chipco_serial_init(struct bcma_drv_cc *cc);
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extern struct platform_device bcma_pflash_dev;
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#endif /* CONFIG_BCMA_DRIVER_MIPS */
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/* driver_chipcommon_b.c */
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int bcma_core_chipcommon_b_init(struct bcma_drv_cc_b *ccb);
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void bcma_core_chipcommon_b_free(struct bcma_drv_cc_b *ccb);
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/* driver_chipcommon_pmu.c */
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void bcma_pmu_early_init(struct bcma_drv_cc *cc);
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void bcma_pmu_init(struct bcma_drv_cc *cc);
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u32 bcma_pmu_get_alp_clock(struct bcma_drv_cc *cc);
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u32 bcma_pmu_get_cpu_clock(struct bcma_drv_cc *cc);
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#ifdef CONFIG_BCMA_SFLASH
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/* driver_chipcommon_sflash.c */
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int bcma_sflash_init(struct bcma_drv_cc *cc);
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extern struct platform_device bcma_sflash_dev;
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#else
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static inline int bcma_sflash_init(struct bcma_drv_cc *cc)
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{
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bcma_err(cc->core->bus, "Serial flash not supported\n");
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return 0;
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}
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#endif /* CONFIG_BCMA_SFLASH */
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#ifdef CONFIG_BCMA_NFLASH
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/* driver_chipcommon_nflash.c */
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int bcma_nflash_init(struct bcma_drv_cc *cc);
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extern struct platform_device bcma_nflash_dev;
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#else
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static inline int bcma_nflash_init(struct bcma_drv_cc *cc)
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{
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bcma_err(cc->core->bus, "NAND flash not supported\n");
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return 0;
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}
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#endif /* CONFIG_BCMA_NFLASH */
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#ifdef CONFIG_BCMA_HOST_PCI
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/* host_pci.c */
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extern int __init bcma_host_pci_init(void);
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extern void __exit bcma_host_pci_exit(void);
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#endif /* CONFIG_BCMA_HOST_PCI */
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/* host_soc.c */
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#if defined(CONFIG_BCMA_HOST_SOC) && defined(CONFIG_OF)
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extern int __init bcma_host_soc_register_driver(void);
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extern void __exit bcma_host_soc_unregister_driver(void);
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#else
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static inline int __init bcma_host_soc_register_driver(void)
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{
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return 0;
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}
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static inline void __exit bcma_host_soc_unregister_driver(void)
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{
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}
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#endif /* CONFIG_BCMA_HOST_SOC && CONFIG_OF */
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/* driver_pci.c */
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#ifdef CONFIG_BCMA_DRIVER_PCI
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u32 bcma_pcie_read(struct bcma_drv_pci *pc, u32 address);
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void bcma_core_pci_early_init(struct bcma_drv_pci *pc);
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void bcma_core_pci_init(struct bcma_drv_pci *pc);
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void bcma_core_pci_up(struct bcma_drv_pci *pc);
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void bcma_core_pci_down(struct bcma_drv_pci *pc);
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#else
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static inline void bcma_core_pci_early_init(struct bcma_drv_pci *pc)
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{
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WARN_ON(pc->core->bus->hosttype == BCMA_HOSTTYPE_PCI);
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}
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static inline void bcma_core_pci_init(struct bcma_drv_pci *pc)
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{
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/* Initialization is required for PCI hosted bus */
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WARN_ON(pc->core->bus->hosttype == BCMA_HOSTTYPE_PCI);
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}
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#endif
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/* driver_pcie2.c */
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#ifdef CONFIG_BCMA_DRIVER_PCI
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void bcma_core_pcie2_init(struct bcma_drv_pcie2 *pcie2);
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void bcma_core_pcie2_up(struct bcma_drv_pcie2 *pcie2);
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#else
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static inline void bcma_core_pcie2_init(struct bcma_drv_pcie2 *pcie2)
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{
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/* Initialization is required for PCI hosted bus */
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WARN_ON(pcie2->core->bus->hosttype == BCMA_HOSTTYPE_PCI);
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}
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#endif
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extern int bcma_chipco_watchdog_register(struct bcma_drv_cc *cc);
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#ifdef CONFIG_BCMA_DRIVER_PCI_HOSTMODE
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bool bcma_core_pci_is_in_hostmode(struct bcma_drv_pci *pc);
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void bcma_core_pci_hostmode_init(struct bcma_drv_pci *pc);
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#else
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static inline bool bcma_core_pci_is_in_hostmode(struct bcma_drv_pci *pc)
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{
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return false;
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}
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static inline void bcma_core_pci_hostmode_init(struct bcma_drv_pci *pc)
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{
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}
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#endif /* CONFIG_BCMA_DRIVER_PCI_HOSTMODE */
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/**************************************************
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* driver_mips.c
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**************************************************/
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#ifdef CONFIG_BCMA_DRIVER_MIPS
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unsigned int bcma_core_mips_irq(struct bcma_device *dev);
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void bcma_core_mips_early_init(struct bcma_drv_mips *mcore);
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void bcma_core_mips_init(struct bcma_drv_mips *mcore);
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#else
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static inline unsigned int bcma_core_mips_irq(struct bcma_device *dev)
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{
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return 0;
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}
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static inline void bcma_core_mips_early_init(struct bcma_drv_mips *mcore)
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{
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}
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static inline void bcma_core_mips_init(struct bcma_drv_mips *mcore)
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{
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}
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#endif
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/**************************************************
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* driver_gmac_cmn.c
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**************************************************/
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#ifdef CONFIG_BCMA_DRIVER_GMAC_CMN
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void bcma_core_gmac_cmn_init(struct bcma_drv_gmac_cmn *gc);
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#else
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static inline void bcma_core_gmac_cmn_init(struct bcma_drv_gmac_cmn *gc)
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{
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}
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#endif
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#ifdef CONFIG_BCMA_DRIVER_GPIO
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/* driver_gpio.c */
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int bcma_gpio_init(struct bcma_drv_cc *cc);
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int bcma_gpio_unregister(struct bcma_drv_cc *cc);
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#else
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static inline int bcma_gpio_init(struct bcma_drv_cc *cc)
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{
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return -ENOTSUPP;
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}
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static inline int bcma_gpio_unregister(struct bcma_drv_cc *cc)
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{
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return 0;
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}
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#endif /* CONFIG_BCMA_DRIVER_GPIO */
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#endif
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