Re: [PATCH v4 4/6] usb: dwc3: qcom: Add support for booting with ACPI
From: Felipe Balbi
Date: Mon Jun 17 2019 - 08:37:12 EST
Lee Jones <lee.jones@xxxxxxxxxx> writes:
>> In Linux, the DWC3 core exists as its own independent platform device.
>> Thus when describing relationships in Device Tree, the current default
>> boot configuration table option, the DWC3 core often resides as a child
>> of the platform specific node. Both of which are given their own
>> address space descriptions and the drivers can be mostly agnostic to
>> each other.
>> However, other Operating Systems have taken a more monolithic approach,
>> which is evident in the configuration ACPI tables for the Qualcomm
>> Snapdragon SDM850, where all DWC3 (core and platform) components are
>> described under a single IO memory region.
>> To ensure successful booting using the supplied ACPI tables, we need to
>> devise a way to chop up the address regions provided and subsequently
>> register the DWC3 core with the resultant information, which is
>> precisely what this patch aims to achieve.
>> Signed-off-by: Lee Jones <lee.jones@xxxxxxxxxx>
>> Reviewed-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
>> drivers/usb/dwc3/Kconfig | 2 +-
>> drivers/usb/dwc3/dwc3-qcom.c | 206 ++++++++++++++++++++++++++++++-----
>> 2 files changed, 179 insertions(+), 29 deletions(-)
> I'm starting to get a little twitchy about these patches now. Due to
> the release cadence of the larger Linux distros, it's pretty important
> that these changes land in v5.3. Without them, it is impossible to
> install Linux on some pretty high profile emerging platforms.
> It's already -rc5 and I'm concerned that we're going to miss the
> merge-window. Would you be kind enough to review these patches
> please? The Pinctrl and I2C parts of the set have already been
I don't seem to have this series in my inbox. This is the only email I
have in this series.
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