ide: rework PowerMac media-bay support (take 2)
Rework PowerMac media-bay support in such way that instead of
un/registering the IDE interface we un/register IDE devices:
* Add ide_port_scan() helper for probing+registerering devices on a port.
* Rename ide_port_unregister_devices() to __ide_port_unregister_devices().
* Add ide_port_unregister_devices() helper for unregistering devices on a port.
* Add 'ide_hwif_t *cd_port' to 'struct media_bay_info', pass 'hwif' instead
of hwif->index to media_bay_set_ide_infos() and use it to setup 'cd_port'.
* Use ide_port_unregister_devices() instead of ide_unregister()
and ide_port_scan() instead of ide_register_hw() in media_bay_step().
* Unexport ide_register_hw() and make it static.
v2:
* Fix build by adding <linux/ide.h> include to <asm-powerpc/mediabay.h>.
(Reported by Michael/Kamalesh/Andrew).
Cc: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Cc: Michael Ellerman <michael@ellerman.id.au>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/include/asm-powerpc/mediabay.h b/include/asm-powerpc/mediabay.h
index de83fe1..df111c3 100644
--- a/include/asm-powerpc/mediabay.h
+++ b/include/asm-powerpc/mediabay.h
@@ -22,10 +22,14 @@
/* Number of bays in the machine or 0 */
extern int media_bay_count;
+#ifdef CONFIG_BLK_DEV_IDE_PMAC
+#include <linux/ide.h>
+
int check_media_bay_by_base(unsigned long base, int what);
/* called by IDE PMAC host driver to register IDE controller for media bay */
int media_bay_set_ide_infos(struct device_node *which_bay, unsigned long base,
- int irq, int index);
+ int irq, ide_hwif_t *hwif);
+#endif
#endif /* __KERNEL__ */
#endif /* _PPC_MEDIABAY_H */