[PATCH 0/5] improvements and fixes for the phy-meson-gxl-usb2 driver

Yixun Lan yixun.lan at amlogic.com
Fri Feb 9 00:27:43 PST 2018



On 01/29/18 04:22, Martin Blumenstingl wrote:
> This contains two fixes and two (minor) fixes for the phy-meson-gxl-usb2
> driver:
> - a clock and reset line is used for the PHYs. this was not clear from
>   the Amlogic GPL kernel sources since the clock is enabled very early
>   in the boot process (either because the hardware defaults to "on",
>   the bootrom enables it or a bootloader before BL3-3/u-boot enables it)
> - we don't read the controller's dr_mode anymore because the USB2 PHY
>   can only be switched into host mode if the USB3 PHY knows about it.
>   Thus auto-detecting the mode doesn't work for this PHY so it's removed
>   in patch #3
> - do not log an error message when the phy-supply is not ready yet and
>   we have to return -EPROBE_DEFER
> - improve the naming of some U2P_R2 test mode registers
> 
> 
> Martin Blumenstingl (5):
>   dt-bindings: phy: meson-gxl-usb2-phy: add the reset line and clock
>   phy: amlogic: phy-meson-gxl-usb2: support the clock and reset line
>   phy: amlogic: phy-meson-gxl-usb2: default to host mode
>   phy: amlogic: phy-meson-gxl-usb2: don't log an error on -EPROBE_DEFER
>   phy: amlogic: phy-meson-gxl-usb2: rename some of the U2P_R2 registers
> 
>  .../devicetree/bindings/phy/meson-gxl-usb2-phy.txt |  4 ++
>  drivers/phy/amlogic/Kconfig                        |  1 -
>  drivers/phy/amlogic/phy-meson-gxl-usb2.c           | 78 ++++++++++++++++------
>  3 files changed, 61 insertions(+), 22 deletions(-)
> 

Hi Martin

  thanks for your great work for pushing the USB driver upstream.

  I've test your whole series[1] on AXG S400 board and it works fine here.

Yixun


[1] the whole patch series include

[RFC usb-next v8 0/3] initialize (multiple) PHYs for a HCD
https://lkml.kernel.org/r/20180125000053.9387-1-martin.blumenstingl@googlemail.com

[PATCH 0/3] DWC3 support for Amlogic Meson AXG and GXL SoCs
https://lkml.kernel.org/r/20180128200333.20093-1-martin.blumenstingl@googlemail.com

[PATCH v2 0/2] Meson GXL USB3 PHY driver
https://lkml.kernel.org/r/20180128201554.23889-1-martin.blumenstingl@googlemail.com

[PATCH 1/5] dt-bindings: phy: meson-gxl-usb2-phy: add the reset line and
clock
https://lkml.kernel.org/r/20180128202245.25021-1-martin.blumenstingl@googlemail.com



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