Hi Dmitry, Thanks for your comments.
On 11/10/2025 8:39 PM, Dmitry Baryshkov wrote:
On Mon, Nov 10, 2025 at 11:27:09AM +0530, Wei Deng wrote:
There's a WCN6855 WiFi/Bluetooth module on an M.2 card. To make Bluetooth work, we need to define the necessary device tree nodes, including UART configuration and power supplies.
Since there is no standard M.2 binding in the device tree at present, the PMU is described using dedicated PMU nodes to represent the internal regulators required by the module.
The 3.3V supply for the module is assumed to come directly from the
Why do you need to assume anything?
The M.2 interface provides a 3.3V supply, which originates from the main board’s 12V rail. To represent this power hierarchy in the device tree, add a fixed 12V regulator node as the DC-IN source and link it to the 3.3V regulator node. Will update commit message in the next patch.
main board supply, which is 12V. To model this in the device tree, we add a fixed 12V regulator node as the DC-IN source and connect it to the 3.3V regulator node.
Signed-off-by: Wei Deng wei.deng@oss.qualcomm.com
arch/arm64/boot/dts/qcom/lemans-evk.dts | 115 ++++++++++++++++++++++++ 1 file changed, 115 insertions(+)
Why do you cc stable for this patch?
I will remove the Cc: stable in the next patch.