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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-adec88fe7e0sm343611966b.76.2025.06.14.11.40.16 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 14 Jun 2025 11:40:17 -0700 (PDT) Message-ID: <9a5130bf-dc1d-47de-9dc2-f2eab4faea17@oss.qualcomm.com> Date: Sat, 14 Jun 2025 20:40:15 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 1/3] arm64: dts: qcom: msm8976: Make blsp_dma controlled-remotely To: git@apitzsch.eu, Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: ~postmarketos/upstreaming@lists.sr.ht, phone-devel@vger.kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20250613-bqx5plus-v1-0-2bc2d43707a6@apitzsch.eu> <20250613-bqx5plus-v1-1-2bc2d43707a6@apitzsch.eu> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20250613-bqx5plus-v1-1-2bc2d43707a6@apitzsch.eu> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwNjE0MDE1NyBTYWx0ZWRfXxB+3baoo/Lp4 QYNwlav8TqEHfuf7nOV/a5BZ4epzEg+toxwH8H8IIq6PjxkeW4DqVhW+Hs8KhSyXcszalPvRQdS FXkGIeCqX9PjlgicAExQOWMeCGZS8df7z5//1/572GdcN2Hc81t5MHvG9jPrhb+Z6nJHk96yl+M fBxcmpcMQhVQsTS1b4v7e77zA0Bo9uRSf8QssGJ2pzFCbgvP7bf4oxMvx2lguKjuVHe5BUgusep adIeSbzBkIGId3ICqeSlMlAc+gfq8ufeMyd61SLDhofL1+qmmtW9FBf/wdbo4L6WVHVXOohSpOl gIogwEUQIS1cwKu452xz3m9QpLWRrcAZ7tRKcxPgnBi2/kqUVHZnbdd7bbLf+lVOIWNYHq+1jEQ FDgr6H+PI1Z9LvSHFA/XgoTef9KIoexx0gwQFmPAn5HtjNMsezSUvC2uQvnJJAMAAgBjq2te X-Authority-Analysis: v=2.4 cv=CqK/cm4D c=1 sm=1 tr=0 ts=684dc213 cx=c_pps a=hnmNkyzTK/kJ09Xio7VxxA==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=6IFa9wvqVegA:10 a=qC_FGOx9AAAA:8 a=HDjIzE35AAAA:8 a=EUspDBNiAAAA:8 a=FqsyDp_bju1yIiuMhToA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=PEH46H7Ffwr30OY-TuGO:22 a=fsdK_YakeE02zTmptMdW:22 a=y3C0EFpLlIT0voqNzzLR:22 X-Proofpoint-ORIG-GUID: c-llMIzk0JYRDoGg5M43CTQr_1xTdhNo X-Proofpoint-GUID: c-llMIzk0JYRDoGg5M43CTQr_1xTdhNo X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.0.736,FMLib:17.12.80.40 definitions=2025-06-14_07,2025-06-13_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 phishscore=0 mlxlogscore=868 priorityscore=1501 lowpriorityscore=0 spamscore=0 malwarescore=0 clxscore=1015 suspectscore=0 mlxscore=0 impostorscore=0 bulkscore=0 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2505280000 definitions=main-2506140157 On 6/13/25 12:37 AM, André Apitzsch via B4 Relay wrote: > From: André Apitzsch > > The blsp_dma controller is shared between the different subsystems, > which is why it is already initialized by the firmware. We should not > reinitialize it from Linux to avoid potential other users of the DMA > engine to misbehave. > > In mainline this can be described using the "qcom,controlled-remotely" > property. In the downstream/vendor kernel from Qualcomm there is an > opposite "qcom,managed-locally" property. This property is *not* set > for the qcom,sps-dma@7884000 and qcom,sps-dma@7ac4000 [1] so adding > "qcom,controlled-remotely" upstream matches the behavior of the > downstream/vendor kernel. > > Adding this fixes booting Longcheer L9360. > > [1]: https://git.codelinaro.org/clo/la/kernel/msm-3.10/-/blob/LA.BR.1.3.7.c26/arch/arm/boot/dts/qcom/msm8976.dtsi#L1149-1163 > > Signed-off-by: André Apitzsch > --- Fixes: 0484d3ce0902 ("arm64: dts: qcom: Add DTS for MSM8976 and MSM8956 SoCs") Reviewed-by: Konrad Dybcio Konrad