diff options
Diffstat (limited to 'drivers/ata/libata-scsi.c')
| -rw-r--r-- | drivers/ata/libata-scsi.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 061eebf85e6d..75bd7792df02 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -36,6 +36,7 @@ #include <linux/suspend.h> #include <asm/unaligned.h> #include <linux/ioprio.h> +#include <linux/of.h> #include "libata.h" #include "libata-transport.h" @@ -4579,6 +4580,34 @@ int ata_scsi_add_hosts(struct ata_host *host, struct scsi_host_template *sht) return rc; } +#ifdef CONFIG_OF +static void ata_scsi_assign_ofnode(struct ata_device *dev, struct ata_port *ap) +{ + struct scsi_device *sdev = dev->sdev; + struct device *d = ap->host->dev; + struct device_node *np = d->of_node; + struct device_node *child; + + for_each_available_child_of_node(np, child) { + int ret; + u32 val; + + ret = of_property_read_u32(child, "reg", &val); + if (ret) + continue; + if (val == dev->devno) { + dev_dbg(d, "found matching device node\n"); + sdev->sdev_gendev.of_node = child; + return; + } + } +} +#else +static void ata_scsi_assign_ofnode(struct ata_device *dev, struct ata_port *ap) +{ +} +#endif + void ata_scsi_scan_host(struct ata_port *ap, int sync) { int tries = 5; @@ -4604,6 +4633,7 @@ void ata_scsi_scan_host(struct ata_port *ap, int sync) NULL); if (!IS_ERR(sdev)) { dev->sdev = sdev; + ata_scsi_assign_ofnode(dev, ap); scsi_device_put(sdev); } else { dev->sdev = NULL; |