@@ -34,6 +34,7 @@ int __init bcma_bus_early_register(struct bcma_bus *bus);
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);
@@ -7,7 +7,9 @@
#include "bcma_private.h"
#include <linux/module.h>
+#include <linux/mmc/sdio_func.h>
#include <linux/platform_device.h>
+#include <linux/pci.h>
#include <linux/bcma/bcma.h>
#include <linux/slab.h>
#include <linux/of_address.h>
@@ -269,6 +271,28 @@ void bcma_prepare_core(struct bcma_bus *bus, struct bcma_device *core)
}
}
+struct device *bcma_bus_get_host_dev(struct bcma_bus *bus)
+{
+ switch (bus->hosttype) {
+ case BCMA_HOSTTYPE_PCI:
+ if (bus->host_pci)
+ return &bus->host_pci->dev;
+ else
+ return NULL;
+ case BCMA_HOSTTYPE_SOC:
+ if (bus->host_pdev)
+ return &bus->host_pdev->dev;
+ else
+ return NULL;
+ case BCMA_HOSTTYPE_SDIO:
+ if (bus->host_sdio)
+ return &bus->host_sdio->dev;
+ else
+ return NULL;
+ }
+ return NULL;
+}
+
void bcma_init_bus(struct bcma_bus *bus)
{
mutex_lock(&bcma_buses_mutex);
@@ -388,6 +412,7 @@ int bcma_bus_register(struct bcma_bus *bus)
{
int err;
struct bcma_device *core;
+ struct device *dev;
/* Scan for devices (cores) */
err = bcma_bus_scan(bus);
@@ -410,13 +435,12 @@ int bcma_bus_register(struct bcma_bus *bus)
bcma_core_pci_early_init(&bus->drv_pci[0]);
}
+ dev = bcma_bus_get_host_dev(bus);
/* TODO: remove check for IS_BUILTIN(CONFIG_BCMA) check when
* of_default_bus_match_table is exported or in some other way
* accessible. This is just a temporary workaround.
*/
- if (IS_BUILTIN(CONFIG_BCMA) && bus->host_pdev) {
- struct device *dev = &bus->host_pdev->dev;
-
+ if (IS_BUILTIN(CONFIG_BCMA) && dev) {
of_platform_populate(dev->of_node, of_default_bus_match_table,
NULL, dev);
}
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 cae761b5a6bdc597ba476a040fdcd5b4bc559b85 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> --- drivers/bcma/bcma_private.h | 1 + drivers/bcma/main.c | 30 +++++++++++++++++++++++++++--- 2 files changed, 28 insertions(+), 3 deletions(-)