[PATCH 0/5] improvements and fixes for the phy-meson-gxl-usb2 driver
Martin Blumenstingl
martin.blumenstingl at googlemail.com
Sun Jan 28 12:22:40 PST 2018
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(-)
--
2.16.1
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