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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-ab6760ab363sm760272266b.114.2025.01.28.02.45.52 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 28 Jan 2025 02:45:53 -0800 (PST) Message-ID: <5b0f9cd4-df65-4963-8d6d-5bdf759ba0c5@oss.qualcomm.com> Date: Tue, 28 Jan 2025 11:45:51 +0100 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 v3 04/13] remoteproc: qcom_q6v5_mss: Handle platforms with one power domain To: Luca Weiss , ~postmarketos/upstreaming@lists.sr.ht, phone-devel@vger.kernel.org, Bjorn Andersson , Mathieu Poirier , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Stephan Gerhold , Konrad Dybcio , =?UTF-8?Q?Matti_Lehtim=C3=A4ki?= Cc: linux-arm-msm@vger.kernel.org, linux-remoteproc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20250127-msm8226-modem-v3-0-67e968787eef@lucaweiss.eu> <20250127-msm8226-modem-v3-4-67e968787eef@lucaweiss.eu> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20250127-msm8226-modem-v3-4-67e968787eef@lucaweiss.eu> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Proofpoint-ORIG-GUID: H89QbBZ0kBy8YGauqO84KEwfNm3TMg-B X-Proofpoint-GUID: H89QbBZ0kBy8YGauqO84KEwfNm3TMg-B X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1057,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-01-28_04,2025-01-27_01,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 suspectscore=0 impostorscore=0 clxscore=1015 spamscore=0 phishscore=0 lowpriorityscore=0 mlxlogscore=918 bulkscore=0 malwarescore=0 priorityscore=1501 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2411120000 definitions=main-2501280083 On 27.01.2025 11:45 PM, Luca Weiss wrote: > For example MSM8974 has mx voltage rail exposed as regulator and only cx > voltage rail is exposed as power domain. This power domain (cx) is > attached internally in power domain and cannot be attached in this driver. > > Fixes: 8750cf392394 ("remoteproc: qcom_q6v5_mss: Allow replacing regulators with power domains") > Co-developed-by: Matti Lehtimäki > Signed-off-by: Matti Lehtimäki > Signed-off-by: Luca Weiss > --- > drivers/remoteproc/qcom_q6v5_mss.c | 20 +++++++++++++++++--- > 1 file changed, 17 insertions(+), 3 deletions(-) > > diff --git a/drivers/remoteproc/qcom_q6v5_mss.c b/drivers/remoteproc/qcom_q6v5_mss.c > index e78bd986dc3f256effce4470222c0a5faeea86ec..0e1b0934ceedd13d5790b798afc95d68a8314c75 100644 > --- a/drivers/remoteproc/qcom_q6v5_mss.c > +++ b/drivers/remoteproc/qcom_q6v5_mss.c > @@ -1831,6 +1831,13 @@ static int q6v5_pds_attach(struct device *dev, struct device **devs, > while (pd_names[num_pds]) > num_pds++; > > + /* Handle single power domain */ > + if (num_pds == 1 && dev->pm_domain) { > + devs[0] = dev; > + pm_runtime_enable(dev); This call can fail Konrad