summaryrefslogtreecommitdiff
path: root/Documentation/devicetree/bindings/ufs
diff options
context:
space:
mode:
authorEvan Green <evgreen@chromium.org>2019-03-21 20:17:55 +0300
committerKishon Vijay Abraham I <kishon@ti.com>2019-04-17 11:42:54 +0300
commit70b894deb78a7deed9157863a17f9e85a4ba87b3 (patch)
tree4401f3266320603bf870becb5f9d8535b8d2cae4 /Documentation/devicetree/bindings/ufs
parent95cee0b4e30a09a411a17e9a3bc6b72ed92063da (diff)
downloadlinux-70b894deb78a7deed9157863a17f9e85a4ba87b3.tar.xz
dt-bindings: phy: qcom-ufs: Add resets property
Add a resets property to the PHY that represents the PHY reset register in the UFS controller itself. This better describes the complete specification of the PHY, and allows the PHY to perform its initialization in a single function, rather than relying on back-channel sequencing of initialization through the PHY framework. Signed-off-by: Evan Green <evgreen@chromium.org> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Stephen Boyd <swboyd@chromium.org> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Diffstat (limited to 'Documentation/devicetree/bindings/ufs')
-rw-r--r--Documentation/devicetree/bindings/ufs/ufs-qcom.txt5
1 files changed, 4 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/ufs/ufs-qcom.txt b/Documentation/devicetree/bindings/ufs/ufs-qcom.txt
index 21d9a93db2e9..fd59f93e9556 100644
--- a/Documentation/devicetree/bindings/ufs/ufs-qcom.txt
+++ b/Documentation/devicetree/bindings/ufs/ufs-qcom.txt
@@ -29,6 +29,7 @@ Optional properties:
- vdda-pll-max-microamp : specifies max. load that can be drawn from pll supply
- vddp-ref-clk-supply : phandle to UFS device ref_clk pad power supply
- vddp-ref-clk-max-microamp : specifies max. load that can be drawn from this supply
+- resets : specifies the PHY reset in the UFS controller
Example:
@@ -51,9 +52,11 @@ Example:
<&clock_gcc clk_ufs_phy_ldo>,
<&clock_gcc clk_gcc_ufs_tx_cfg_clk>,
<&clock_gcc clk_gcc_ufs_rx_cfg_clk>;
+ resets = <&ufshc 0>;
};
- ufshc@fc598000 {
+ ufshc: ufshc@fc598000 {
+ #reset-cells = <1>;
...
phys = <&ufsphy1>;
phy-names = "ufsphy";