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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , Bjorn Andersson , Konrad Dybcio , Mathieu Poirier , Philipp Zabel , linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, linux-wireless@vger.kernel.org, ath10k@lists.infradead.org, linux-arm-msm@vger.kernel.org, linux-bluetooth@vger.kernel.org, netdev@vger.kernel.org, linux-remoteproc@vger.kernel.org References: <20260625-ipq5018-bluetooth-v1-0-d999be0e04f7@outlook.com> <20260625-ipq5018-bluetooth-v1-4-d999be0e04f7@outlook.com> <20260626-discerning-light-swan-6b599c@quoll> Content-Language: en-US From: Konrad Dybcio In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-GUID: tHGf5GTVUnN5J17ajc6eQ56aOj7YV2Su X-Proofpoint-ORIG-GUID: tHGf5GTVUnN5J17ajc6eQ56aOj7YV2Su X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNjI2MDA5MyBTYWx0ZWRfXw1Fqv+cUqdqR r7OjkpuXlZhRmlS48c/B29vrmHF0RGCaDtNTD+qfi58rgVkmnD1/RXefy24kRCNkkK80CcC5rzU cGvGLvkJvfcDmGZqzgjq3S6iChEVb1JuU7rOy8sY1rQ2JjhUJh5r7RBrhvBeZbky9BN/yiZwgTj Vn/nRfUEY9RNvL+pc9YT1xCX0w9OpNF4VT/bE446ehf9fksCD9xnA175cwFg4Ob5NfnTbwD/6v9 LmE0il8aqoTJ+f9hzcbao5jB3XfRuN756MhMYP69+BFjWEl0Ub0IfkAzCKCRSYhNLpH3gxEj1A+ cT5r61QTPy5lp3eg+eAknf8PVTK1aE4MmfRPrXQDI1pYoZ6tuS8JfuCOw/o8dF0hKRvFhyxuhDP oHzSGUEfsckpbQdKylsqmcYEnpUCSnFnj1P1hUpAvMZ4zXDZTnOb+IW1ldJE6x7HNLVNVvp3YF1 /utQouQqBtZu5GmFAFQ== X-Authority-Analysis: v=2.4 cv=FPkrAeos c=1 sm=1 tr=0 ts=6a3e62ca cx=c_pps a=5HAIKLe1ejAbszaTRHs9Ug==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=FelO9ux0wxsA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=3WHJM1ZQz_JShphwDgj5:22 a=UqCG9HQmAAAA:8 a=Q5Orqy1XeLiTHnkJztkA:9 a=QEXdDO2ut3YA:10 a=gYDTvv6II1OnSo0itH1n:22 X-Proofpoint-Spam-Info: AW1haW4tMjYwNjI2MDA5MyBTYWx0ZWRfXzHK3cXQLXpxw 3CR9l01PoaKm3vWRuMeOvdWnaaqpSds9MKJpeJ+Jk776FuJ6KYfmUCTjxOBskLDxwSzXall7IbU 87hQr2Jmi5NENqWOON6ErsjIZzEqRts= X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-06-26_03,2026-06-24_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 clxscore=1015 priorityscore=1501 malwarescore=0 adultscore=0 bulkscore=0 impostorscore=0 phishscore=0 suspectscore=0 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2606260093 On 6/26/26 1:20 PM, George Moussalem wrote: > On 6/26/26 14:53, Krzysztof Kozlowski wrote: >> On Thu, Jun 25, 2026 at 06:10:08PM +0400, George Moussalem wrote: >>> Document the Qualcomm IPQ5018 Bluetooth controller. >>> >>> Signed-off-by: George Moussalem >>> --- [...] >>> + compatible = "qcom,ipq5018-bt"; >>> + >>> + qcom,ipc = <&apcs_glb 8 23>; >>> + interrupts = ; >> >> No firmware to load? > > firmware is loaded by the remoteproc in patch 1 > >> >> It feels like remoteproc node split is fake. The property qcom,rproc is >> even more supporting that case. Shouldn't this be simply one device - >> bluetooth? What sort of two devices do you have exactly? How can I >> identify them in the hardware? > > I wasn't sure how to represent the HW. Should I make this bluetooth node > a childnode of the rproc? Essentially, this is the transport layer > (using shared memory space and IPC/interrupt). > > Most QCA BT controllers are also childnodes of a serdev/uart node as > they use serdev for transport. > > From what I understand, it's simply BT firmware running on this > dedicated M0 core in the SoC itself connected to an RF. Seems like this rhymes with the WPSS remoteproc +ATH1xK_AHB situation - the Q6 core power sequences and manages the wireless controller, while Linux gets to drive the device as it would if it were connected over PCIe/ UART respectively, just with MMIO writes instead. Konrad