Re: [PATCH v2 4/5] arm64: dts: exynos: gs101-oriole: enable Maxim max77759 TCPCi
From: Peter Griffin
Date: Sat Dec 07 2024 - 17:24:48 EST
On Tue, 3 Dec 2024 at 12:40, André Draszik <andre.draszik@xxxxxxxxxx> wrote:
>
> On Pixel 6 (and Pro), a max77759 companion PMIC for USB Type-C
> applications is used, which contains four functional blocks (at
> distinct I2C addresses):
> * top (including GPIO)
> * charger
> * fuel gauge
> * TCPCi
>
> While in the same package, TCPCi and Fuel Gauge have separate I2C
> addresses, interrupt lines and interrupt status registers and can be
> treated independently.
>
> The TCPCi is required to detect and handle connector orientation in
> Pixel's USB PHY driver, and to configure the USB controller's role
> (host vs device).
>
> This change adds the TCPCi part as it can be independent and doesn't
> need a top-level MFD.
>
> Signed-off-by: André Draszik <andre.draszik@xxxxxxxxxx>
>
> ---
Reviewed-by: Peter Griffin <peter.griffin@xxxxxxxxxx>
Tested-by: Peter Griffin <peter.griffin@xxxxxxxxxx>
Notes on testing:
Verified that type-c orientation notifications are sent to usb phy
driver and that Pixel is enumerated as a USB device with both cable
orientations
[..]