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| author | Peter Chen <peter.chen@freescale.com> | 2013-01-18 10:38:05 +0800 |
|---|---|---|
| committer | Shawn Guo <shawn.guo@linaro.org> | 2013-02-10 23:25:45 +0800 |
| commit | a5120e89e7e187a91852896f586876c7a2030804 (patch) | |
| tree | c156c6fe8b543ca61035ec46f55eacdd755b577f /Documentation | |
| parent | d6b9c591940cd7c03724999c72f31fd92c0dee59 (diff) | |
| download | op-kernel-dev-a5120e89e7e187a91852896f586876c7a2030804.zip op-kernel-dev-a5120e89e7e187a91852896f586876c7a2030804.tar.gz | |
ARM i.MX6: change mxs usbphy clock usage
This mxs usbphy is only needs to be on after system boots
up, and software never needs to control it anymore.
Meanwhile, usbphy's parent needs to be notified if usb
is suspend or not. So we design below mxs usbphy usage:
- usbphy1_gate and usbphy2_gate:
Their parents are dummy clock, we only needs to enable
it after system boots up.
- usbphy1 and usbphy2
Usage reserved bit for this clock, in that case, the refcount
will be updated, but without hardware changing.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/clock/imx6q-clock.txt | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/clock/imx6q-clock.txt b/Documentation/devicetree/bindings/clock/imx6q-clock.txt index f73fdf5..969b38e 100644 --- a/Documentation/devicetree/bindings/clock/imx6q-clock.txt +++ b/Documentation/devicetree/bindings/clock/imx6q-clock.txt @@ -203,6 +203,8 @@ clocks and IDs. pcie_ref 188 pcie_ref_125m 189 enet_ref 190 + usbphy1_gate 191 + usbphy2_gate 192 Examples: |
