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| author |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-09-22 10:16:47 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-09-22 10:16:47 +0200 |
| commit | 2b4534185b61048bf4443d926a1b5ea91a29025b (patch) | |
| tree | 4b9a45ae2487239084f4b1649c56c10d544216f6 /Documentation | |
| parent | Merge a31128384dfd ("Merge tag 'libnvdimm-fixes-5.9-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm") into usb-next (diff) | |
| parent | usb: chipidea: ci_hdrc_imx: restore pinctrl (diff) | |
| download | wireguard-linux-2b4534185b61048bf4443d926a1b5ea91a29025b.tar.xz wireguard-linux-2b4534185b61048bf4443d926a1b5ea91a29025b.zip | |
Merge tag 'usb-ci-v5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb into usb-next
Peter writes:
Two changes for chipidea imx driver:
- Add picophy parameter tuning interface
- Restore pinctrl for system suspend/resume
* tag 'usb-ci-v5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb:
usb: chipidea: ci_hdrc_imx: restore pinctrl
usb: chipidea: imx: add two samsung picophy parameters tuning implementation
doc: dt-binding: ci-hdrc-usb2: add property for samsung picophy
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt index 51376cbe5f3d..a5c5db6a0b2d 100644 --- a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt +++ b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt @@ -100,6 +100,15 @@ i.mx specific properties It's recommended to specify the over current polarity. - power-active-high: power signal polarity is active high - external-vbus-divider: enables off-chip resistor divider for Vbus +- samsung,picophy-pre-emp-curr-control: HS Transmitter Pre-Emphasis Current + Control. This signal controls the amount of current sourced to the + USB_OTG*_DP and USB_OTG*_DN pins after a J-to-K or K-to-J transition. + The range is from 0x0 to 0x3, the default value is 0x1. + Details can refer to TXPREEMPAMPTUNE0 bits of USBNC_n_PHY_CFG1. +- samsung,picophy-dc-vol-level-adjust: HS DC Voltage Level Adjustment. + Adjust the high-speed transmitter DC level voltage. + The range is from 0x0 to 0xf, the default value is 0x3. + Details can refer to TXVREFTUNE0 bits of USBNC_n_PHY_CFG1. Example: |