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linux/drivers/bcma/bcma_private.h
Hauke Mehrtens 53cd2fdb00 bcma: fix access to host_pdev for PCIe devices 
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>
2015-08-10 22:20:46 +03:00

204 lines
5.8 KiB
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#ifndef LINUX_BCMA_PRIVATE_H_
#define LINUX_BCMA_PRIVATE_H_
#ifndef pr_fmt
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#endif
#include <linux/bcma/bcma.h>
#include <linux/delay.h>
#define BCMA_CORE_SIZE 0x1000
#define bcma_err(bus, fmt, ...) \
pr_err("bus%d: " fmt, (bus)->num, ##__VA_ARGS__)
#define bcma_warn(bus, fmt, ...) \
pr_warn("bus%d: " fmt, (bus)->num, ##__VA_ARGS__)
#define bcma_info(bus, fmt, ...) \
pr_info("bus%d: " fmt, (bus)->num, ##__VA_ARGS__)
#define bcma_debug(bus, fmt, ...) \
pr_debug("bus%d: " fmt, (bus)->num, ##__VA_ARGS__)
struct bcma_bus;
/* main.c */
bool bcma_wait_value(struct bcma_device *core, u16 reg, u32 mask, u32 value,
int timeout);
void bcma_prepare_core(struct bcma_bus *bus, struct bcma_device *core);
void bcma_init_bus(struct bcma_bus *bus);
void bcma_unregister_cores(struct bcma_bus *bus);
int bcma_bus_register(struct bcma_bus *bus);
void bcma_bus_unregister(struct bcma_bus *bus);
int __init bcma_bus_early_register(struct bcma_bus *bus);
#ifdef CONFIG_PM
int bcma_bus_suspend(struct bcma_bus *bus);
int bcma_bus_resume(struct bcma_bus *bus);
#endif
struct device *bcma_bus_get_host_dev(struct bcma_bus *bus);
/* scan.c */
void bcma_detect_chip(struct bcma_bus *bus);
int bcma_bus_scan(struct bcma_bus *bus);
/* sprom.c */
int bcma_sprom_get(struct bcma_bus *bus);
/* driver_chipcommon.c */
void bcma_core_chipcommon_early_init(struct bcma_drv_cc *cc);
void bcma_core_chipcommon_init(struct bcma_drv_cc *cc);
void bcma_chipco_bcm4331_ext_pa_lines_ctl(struct bcma_drv_cc *cc, bool enable);
#ifdef CONFIG_BCMA_DRIVER_MIPS
void bcma_chipco_serial_init(struct bcma_drv_cc *cc);
extern struct platform_device bcma_pflash_dev;
#endif /* CONFIG_BCMA_DRIVER_MIPS */
/* driver_chipcommon_b.c */
int bcma_core_chipcommon_b_init(struct bcma_drv_cc_b *ccb);
void bcma_core_chipcommon_b_free(struct bcma_drv_cc_b *ccb);
/* driver_chipcommon_pmu.c */
void bcma_pmu_early_init(struct bcma_drv_cc *cc);
void bcma_pmu_init(struct bcma_drv_cc *cc);
u32 bcma_pmu_get_alp_clock(struct bcma_drv_cc *cc);
u32 bcma_pmu_get_cpu_clock(struct bcma_drv_cc *cc);
#ifdef CONFIG_BCMA_SFLASH
/* driver_chipcommon_sflash.c */
int bcma_sflash_init(struct bcma_drv_cc *cc);
extern struct platform_device bcma_sflash_dev;
#else
static inline int bcma_sflash_init(struct bcma_drv_cc *cc)
{
bcma_err(cc->core->bus, "Serial flash not supported\n");
return 0;
}
#endif /* CONFIG_BCMA_SFLASH */
#ifdef CONFIG_BCMA_NFLASH
/* driver_chipcommon_nflash.c */
int bcma_nflash_init(struct bcma_drv_cc *cc);
extern struct platform_device bcma_nflash_dev;
#else
static inline int bcma_nflash_init(struct bcma_drv_cc *cc)
{
bcma_err(cc->core->bus, "NAND flash not supported\n");
return 0;
}
#endif /* CONFIG_BCMA_NFLASH */
#ifdef CONFIG_BCMA_HOST_PCI
/* host_pci.c */
extern int __init bcma_host_pci_init(void);
extern void __exit bcma_host_pci_exit(void);
#endif /* CONFIG_BCMA_HOST_PCI */
/* host_soc.c */
#if defined(CONFIG_BCMA_HOST_SOC) && defined(CONFIG_OF)
extern int __init bcma_host_soc_register_driver(void);
extern void __exit bcma_host_soc_unregister_driver(void);
#else
static inline int __init bcma_host_soc_register_driver(void)
{
return 0;
}
static inline void __exit bcma_host_soc_unregister_driver(void)
{
}
#endif /* CONFIG_BCMA_HOST_SOC && CONFIG_OF */
/* driver_pci.c */
#ifdef CONFIG_BCMA_DRIVER_PCI
u32 bcma_pcie_read(struct bcma_drv_pci *pc, u32 address);
void bcma_core_pci_early_init(struct bcma_drv_pci *pc);
void bcma_core_pci_init(struct bcma_drv_pci *pc);
void bcma_core_pci_up(struct bcma_drv_pci *pc);
void bcma_core_pci_down(struct bcma_drv_pci *pc);
#else
static inline void bcma_core_pci_early_init(struct bcma_drv_pci *pc)
{
WARN_ON(pc->core->bus->hosttype == BCMA_HOSTTYPE_PCI);
}
static inline void bcma_core_pci_init(struct bcma_drv_pci *pc)
{
/* Initialization is required for PCI hosted bus */
WARN_ON(pc->core->bus->hosttype == BCMA_HOSTTYPE_PCI);
}
#endif
/* driver_pcie2.c */
#ifdef CONFIG_BCMA_DRIVER_PCI
void bcma_core_pcie2_init(struct bcma_drv_pcie2 *pcie2);
void bcma_core_pcie2_up(struct bcma_drv_pcie2 *pcie2);
#else
static inline void bcma_core_pcie2_init(struct bcma_drv_pcie2 *pcie2)
{
/* Initialization is required for PCI hosted bus */
WARN_ON(pcie2->core->bus->hosttype == BCMA_HOSTTYPE_PCI);
}
#endif
extern int bcma_chipco_watchdog_register(struct bcma_drv_cc *cc);
#ifdef CONFIG_BCMA_DRIVER_PCI_HOSTMODE
bool bcma_core_pci_is_in_hostmode(struct bcma_drv_pci *pc);
void bcma_core_pci_hostmode_init(struct bcma_drv_pci *pc);
#else
static inline bool bcma_core_pci_is_in_hostmode(struct bcma_drv_pci *pc)
{
return false;
}
static inline void bcma_core_pci_hostmode_init(struct bcma_drv_pci *pc)
{
}
#endif /* CONFIG_BCMA_DRIVER_PCI_HOSTMODE */
/**************************************************
* driver_mips.c
**************************************************/
#ifdef CONFIG_BCMA_DRIVER_MIPS
unsigned int bcma_core_mips_irq(struct bcma_device *dev);
void bcma_core_mips_early_init(struct bcma_drv_mips *mcore);
void bcma_core_mips_init(struct bcma_drv_mips *mcore);
#else
static inline unsigned int bcma_core_mips_irq(struct bcma_device *dev)
{
return 0;
}
static inline void bcma_core_mips_early_init(struct bcma_drv_mips *mcore)
{
}
static inline void bcma_core_mips_init(struct bcma_drv_mips *mcore)
{
}
#endif
/**************************************************
* driver_gmac_cmn.c
**************************************************/
#ifdef CONFIG_BCMA_DRIVER_GMAC_CMN
void bcma_core_gmac_cmn_init(struct bcma_drv_gmac_cmn *gc);
#else
static inline void bcma_core_gmac_cmn_init(struct bcma_drv_gmac_cmn *gc)
{
}
#endif
#ifdef CONFIG_BCMA_DRIVER_GPIO
/* driver_gpio.c */
int bcma_gpio_init(struct bcma_drv_cc *cc);
int bcma_gpio_unregister(struct bcma_drv_cc *cc);
#else
static inline int bcma_gpio_init(struct bcma_drv_cc *cc)
{
return -ENOTSUPP;
}
static inline int bcma_gpio_unregister(struct bcma_drv_cc *cc)
{
return 0;
}
#endif /* CONFIG_BCMA_DRIVER_GPIO */
#endif
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