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charset=UTF-8 Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241022_234112_987527_83E5CC47 X-CRM114-Status: GOOD ( 17.82 ) X-BeenThere: ath12k@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "ath12k" Errors-To: ath12k-bounces+ath12k=archiver.kernel.org@lists.infradead.org On 23/10/2024 08:03, Raj Kumar Bhagat wrote: > The RDP433 is a Qualcomm Reference Design Platform based on the > IPQ9574. It has three QCN9274 WiFi devices connected to PCIe1, PCIe2, > and PCIe3. These devices are also connected among themselves via > WSI connection. This WSI connection is essential to exchange control > information among these devices > > The WSI connection in RDP433 is represented below: > > +-------+ +-------+ +-------+ > | pcie2 | | pcie3 | | pcie1 | > | | | | | | > +----->| wsi |------->| wsi |------->| wsi |-----+ > | | idx 0 | | idx 1 | | idx 2 | | > | +-------+ +-------+ +-------+ | > +------------------------------------------------------+ > > Based on the above, the WSI properties for QCN9274 at pcie2 are: > qcom,wsi-group-id = 0 > qcom,wsi-index = 0 > qcom,wsi-num-devices = 3; > > Hence, add WiFi nodes with WSI properties for all three QCN9274 > devices connected to RDP433. > > Signed-off-by: Raj Kumar Bhagat > --- > arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts | 62 ++++++++++++++++++++- > 1 file changed, 61 insertions(+), 1 deletion(-) > > diff --git a/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts b/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts > index 165ebbb59511..2241e20ad42a 100644 > --- a/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts > +++ b/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts > @@ -3,7 +3,7 @@ > * IPQ9574 RDP433 board device tree source > * > * Copyright (c) 2020-2021 The Linux Foundation. All rights reserved. > - * Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved. > + * Copyright (c) 2023-2024 Qualcomm Innovation Center, Inc. All rights reserved. > */ > > /dts-v1/; > @@ -27,6 +27,26 @@ &pcie1 { > perst-gpios = <&tlmm 26 GPIO_ACTIVE_LOW>; > wake-gpios = <&tlmm 27 GPIO_ACTIVE_LOW>; > status = "okay"; > + > + pcie@0 { > + device_type = "pci"; > + reg = <0x0 0x0 0x0 0x0 0x0>; > + #address-cells = <3>; > + #size-cells = <2>; > + ranges; > + > + wifi1@0 { > + compatible = "pci17cb,1109"; > + reg = <0x0 0x0 0x0 0x0 0x0>; > + status = "okay"; Why? > + > + wsi { > + qcom,wsi-group-id = <0>; So all devices have the same group id? No other group id? So hard-code it at 0? > + qcom,wsi-index = <2>; > + qcom,wsi-num-devices = <3>; All this looks opposite how we organize usually DTS. Instead of phandles you pass some sort of indices. Instead of re-using some existing properties for remoteproc-related stuff, you add three more. Best regards, Krzysztof