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| author | Yaniv Gardi <ygardi@codeaurora.org> | 2016-03-10 16:37:05 +0100 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2016-03-15 02:04:45 +0100 |
| commit | 54b879b76ea253105505f840bd842c1927c9e380 (patch) | |
| tree | d0caf219520b92c99979ed7558d40099a97cfe4e /Documentation | |
| parent | sg: fix dxferp in from_to case (diff) | |
| download | linux-54b879b76ea253105505f840bd842c1927c9e380.tar.xz linux-54b879b76ea253105505f840bd842c1927c9e380.zip | |
scsi: ufs-qcom: add number of lanes per direction
Different platform may have different number of lanes
for the UFS link.
Add parameter to device tree specifying how many lanes
should be configured for the UFS link.
Reviewed-by: Hannes Reinecke <hare@suse.de>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Gilad Broner <gbroner@codeaurora.org>
Signed-off-by: Yaniv Gardi <ygardi@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt b/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt index 03c0e989e020..66f6adf8d44d 100644 --- a/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt +++ b/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt @@ -38,6 +38,9 @@ Optional properties: defined or a value in the array is "0" then it is assumed that the frequency is set by the parent clock or a fixed rate clock source. +-lanes-per-direction : number of lanes available per direction - either 1 or 2. + Note that it is assume same number of lanes is used both + directions at once. If not specified, default is 2 lanes per direction. Note: If above properties are not defined it can be assumed that the supply regulators or clocks are always on. |