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author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-10-07 21:29:18 -0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-10-07 21:29:18 -0400 |
commit | 9a50aaefc1b896e734bf7faf3d085f71a360ce97 (patch) | |
tree | 82fd9003d6c1d1a7dcf107f46d77b92f11d3f697 /Documentation/devicetree/bindings | |
parent | 1e345ac6869cd2f2d5d4b780fc5d5332dd1e8905 (diff) | |
parent | 19ac97ff701ae3c0eda09dd88f590806f1c4eb2d (diff) |
Merge tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"This patch set consists of the usual driver updates (megaraid_sas,
arcmsr, be2iscsi, lpfc, mpt2sas, mpt3sas, qla2xxx, ufs) plus several
assorted fixes and miscellaneous updates (including the
pci_msix_enable_range() changes that have been pending for a while)"
* tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (202 commits)
scsi: add a CONFIG_SCSI_MQ_DEFAULT option
ufs: definitions for phy interface
ufs: tune bkops while power managment events
ufs: Add support for clock scaling using devfreq framework
ufs: Add freq-table-hz property for UFS device
ufs: Add support for clock gating
ufs: refactor configuring power mode
ufs: add UFS power management support
ufs: introduce well known logical unit in ufs
ufs: manually add well known logical units
ufs: Active Power Mode - configuring bActiveICCLevel
ufs: improve init sequence
ufs: refactor query descriptor API support
ufs: add voting support for host controller power
ufs: Add clock initialization support
ufs: Add regulator enable support
ufs: Allow vendor specific initialization
scsi: don't add scsi_device if its already visible
scsi: fix the type for well known LUs
scsi: fix comment in struct Scsi_Host definition
...
Diffstat (limited to 'Documentation/devicetree/bindings')
-rw-r--r-- | Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt b/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt index 20468b2a751..53579197eca 100644 --- a/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt +++ b/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt @@ -8,9 +8,50 @@ Required properties: - interrupts : <interrupt mapping for UFS host controller IRQ> - reg : <registers mapping> +Optional properties: +- vdd-hba-supply : phandle to UFS host controller supply regulator node +- vcc-supply : phandle to VCC supply regulator node +- vccq-supply : phandle to VCCQ supply regulator node +- vccq2-supply : phandle to VCCQ2 supply regulator node +- vcc-supply-1p8 : For embedded UFS devices, valid VCC range is 1.7-1.95V + or 2.7-3.6V. This boolean property when set, specifies + to use low voltage range of 1.7-1.95V. Note for external + UFS cards this property is invalid and valid VCC range is + always 2.7-3.6V. +- vcc-max-microamp : specifies max. load that can be drawn from vcc supply +- vccq-max-microamp : specifies max. load that can be drawn from vccq supply +- vccq2-max-microamp : specifies max. load that can be drawn from vccq2 supply +- <name>-fixed-regulator : boolean property specifying that <name>-supply is a fixed regulator + +- clocks : List of phandle and clock specifier pairs +- clock-names : List of clock input name strings sorted in the same + order as the clocks property. +- freq-table-hz : Array of <min max> operating frequencies stored in the same + order as the clocks property. If this property is not + 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. + +Note: If above properties are not defined it can be assumed that the supply +regulators or clocks are always on. + Example: ufshc@0xfc598000 { compatible = "jedec,ufs-1.1"; reg = <0xfc598000 0x800>; interrupts = <0 28 0>; + + vdd-hba-supply = <&xxx_reg0>; + vdd-hba-fixed-regulator; + vcc-supply = <&xxx_reg1>; + vcc-supply-1p8; + vccq-supply = <&xxx_reg2>; + vccq2-supply = <&xxx_reg3>; + vcc-max-microamp = 500000; + vccq-max-microamp = 200000; + vccq2-max-microamp = 200000; + + clocks = <&core 0>, <&ref 0>, <&iface 0>; + clock-names = "core_clk", "ref_clk", "iface_clk"; + freq-table-hz = <100000000 200000000>, <0 0>, <0 0>; }; |