linux-kernel - Re: [PATCH v4 4/6] usb: dwc3: qcom: Add support for booting with ACPI

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Date:   Mon, 17 Jun 2019 15:32:07 +0300
From:   Felipe Balbi <balbi@...nel.org>
To:     Lee Jones <lee.jones@...aro.org>, alokc@...eaurora.org,
        agross@...nel.org, david.brown@...aro.org,
        wsa+renesas@...g-engineering.com, bjorn.andersson@...aro.org,
        gregkh@...uxfoundation.org, ard.biesheuvel@...aro.org,
        jlhugo@...il.com
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-i2c@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-gpio@...r.kernel.org, linux-usb@...r.kernel.org
Subject: Re: [PATCH v4 4/6] usb: dwc3: qcom: Add support for booting with ACPI

Hi,

Lee Jones <lee.jones@...aro.org> 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@...aro.org>
>> Reviewed-by: Bjorn Andersson <bjorn.andersson@...aro.org>
>> ---
>>  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
> merged.

I don't seem to have this series in my inbox. This is the only email I
have in this series.

-- 
balbi

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