Re: [PATCH v3 0/2] usb: typec: qcom-pmic-typec: enable DP support

From: Dmitry Baryshkov
Date: Fri Jul 28 2023 - 06:19:59 EST


On Fri, 28 Jul 2023 at 13:14, Guenter Roeck <linux@xxxxxxxxxxxx> wrote:
>
> On 7/28/23 03:08, Dmitry Baryshkov wrote:
> > To enable DisplayPort on the platforms supported by qcom-pmic-typec
> > driver, we need to register a corresponding drm_bridge for this device
> > to be able to receive the OOB hotplug event sent to the corresponding
> > DRM connector.
> >
> > Reception of the hotplug event is implemented by [1], but there is no
> > direct dependency on that patchset. This series implements the remaining
> > parts: registration of the drm_bridge and setting of the proper
> > destination for the OOB hotplug event.
> >
> > [1] https://patchwork.freedesktop.org/series/120393/
> >
> > Changes since v2:
> > - Reworded commit message for the first patch to explicitly mention that
> > the "displayport" OF property was rejected (Bjorn)
> > - Removed several #ifdefs from the qcom-pmic-typec patch (Bryan, Konrad,
> > Greg K-H)
> >
> > Changes since v1:
> > - Properly handle CONFIG_DRM dependency. Disallow building DRM as a
> > module if qcom-pmic-typec driver is built-in (Bryan).
>
> config TYPEC_QCOM_PMIC
> tristate "Qualcomm PMIC USB Type-C Port Controller Manager driver"
> depends on ARCH_QCOM || COMPILE_TEST
> + depends on DRM || DRM=n
>
> This disallows building TYPEC_QCOM_PMIC into the kernel if DRM is built
> as module, which is pretty much the opposite of what is claimed above.
> It does not affect DRM at all.
>
> Not that it matters much, but I find it confusing if the change log
> claims to do the opposite of what the code is doing.

Ack. If there is a v4 I'll fix the changelog to invert the condition.

>
> Guenter
>
> >
> > Dmitry Baryshkov (2):
> > usb: typec: altmodes/displayport: add support for embedded DP cases
> > usb: typec: qcom-pmic-typec: register drm_bridge
> >
> > drivers/usb/typec/altmodes/displayport.c | 5 ++-
> > drivers/usb/typec/tcpm/Kconfig | 1 +
> > drivers/usb/typec/tcpm/qcom/qcom_pmic_typec.c | 35 +++++++++++++++++++
> > 3 files changed, 40 insertions(+), 1 deletion(-)
> >
>


--
With best wishes
Dmitry