diff options
| author |   Xiaofei Tan <tanxiaofei@huawei.com> | 2018-01-18 00:46:53 +0800 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2018-01-22 20:03:59 -0500 |
| commit | 6379c56070b9ee32ae2b3efa51e121242042e72d (patch) | |
| tree | 333622491f3425dd5643ec103cb7175aca9c9796 /drivers/scsi/hisi_sas/hisi_sas.h | |
| parent | scsi: hisi_sas: devicetree: bindings: add LED feature for v2 hw (diff) | |
| download | linux-dev-6379c56070b9ee32ae2b3efa51e121242042e72d.tar.xz linux-dev-6379c56070b9ee32ae2b3efa51e121242042e72d.zip | |
scsi: hisi_sas: directly attached disk LED feature for v2 hw
This patch implements LED feature of directly attached disk for v2 hw.
As libsas has provided an interface lldd_write_gpio() for this feature,
we just need realise the interface following SPGIO API.
We use an CPLD to finish the hardware part of this feature, and the base
address of CPLD should be configured through ACPI or DT tables.
Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/hisi_sas/hisi_sas.h')
| -rw-r--r-- | drivers/scsi/hisi_sas/hisi_sas.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers/scsi/hisi_sas/hisi_sas.h index 4000de429430..e7fd2877c19c 100644 --- a/drivers/scsi/hisi_sas/hisi_sas.h +++ b/drivers/scsi/hisi_sas/hisi_sas.h @@ -244,6 +244,8 @@ struct hisi_sas_hw { struct domain_device *device); int (*soft_reset)(struct hisi_hba *hisi_hba); u32 (*get_phys_state)(struct hisi_hba *hisi_hba); + int (*write_gpio)(struct hisi_hba *hisi_hba, u8 reg_type, + u8 reg_index, u8 reg_count, u8 *write_data); int max_command_entries; int complete_hdr_size; }; @@ -257,6 +259,7 @@ struct hisi_hba { struct device *dev; void __iomem *regs; + void __iomem *sgpio_regs; struct regmap *ctrl; u32 ctrl_reset_reg; u32 ctrl_reset_sts_reg; |