Hi Peter / Sebastian, On Sat, 1 Mar 2025 at 23:41, Peter Robinson <pbrobin...@gmail.com> wrote: > > > > On Thu, 27 Feb 2025 at 06:01, Anand Moon <linux.am...@gmail.com> wrote: >> >> Hi Sebastian, >> >> On Thu, 27 Feb 2025 at 00:15, Sebastian Reichel >> <sebastian.reic...@collabora.com> wrote: >> > >> > Hi, >> > >> > I have a couple of fixes/improvements for the TCPM code. Three are fixing >> > actual problems I noticed on the Rock 5B, which prevented booting up the >> > system. One of them simply adds an error print before potentially >> > committing >> > hara-kiri by triggering a hard reset, which helps people understanding >> > why their boards reset themself in case there are more problems. I've >> > recently added the same print to the kernel TCPM code. >> > >> I have encountered issues with the Raspberry Pi Type C power supply on >> a few occasions. >> Thanks for these changes, but it dose not resolve the issue completely. > > > I don't believe the RPi Type-C power supply supports power delivery.
RPi 5 Type-C power supply is generally compatible with the Rock 5B for daily use. I also have the Radxa 65W official Type-C power supply for the Radxa Rock 5B board. I was checking the connection messages with different power sources. > >> >> Do you have plans to add a device tree node for this board? > > > For which board? Radxa Rock 5B and Rock 5B+ indeed have a versatile USB Type-C port that can be used both as a display port and a power source. During my investigation, I discovered that the Type-C port uses the FCS, FUSB302 the driver instead of the TCPM driver. The FUSB302 driver is specifically designed for USB Power Delivery (USB PD) and supports various power delivery protocols. Here is the device node [1] https://github.com/radxa/kernel/blob/linux-6.1-stan-rkr4.1/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts#L744-L814 [2] https://github.com/Ralim/usb-pd As of now, I don't have a Type-C power source monitor to test the feature Thanks -Anand
