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Wed, 21 Oct 2026 01:06:01 -0700 (PDT) Received: from [192.168.226.26] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-6b4030db3e8sm550186a12.8.2026.10.21.01.05.59 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 21 Oct 2026 01:06:00 -0700 (PDT) Message-ID: <3c5f973a-c97d-4a76-b357-09f8feffae28@oss.qualcomm.com> Date: Wed, 21 Oct 2026 10:05:58 +0200 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] clk: qcom: gcc-ipq6018: add fallback names for the bias PLL parents To: Julius Bairaktaris , Bjorn Andersson Cc: Stephen Boyd , Abel Vesa , Brian Masney , Jerome Brunet , Vladyslav Andreichykov , linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org References: <20261020065430.1251541-1-julius@bairaktaris.de> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20261020065430.1251541-1-julius@bairaktaris.de> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=aI5lOr9m c=1 sm=1 tr=0 ts=6ad8726a cx=c_pps a=50t2pK5VMbmlHzFWWp8p/g==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=660iZSQnnn4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=gowsoOTTUOVcmtlkKump:22 a=pGLkceISAAAA:8 a=9eXLaK2AgRjqOK-xnasA:9 a=QEXdDO2ut3YA:10 a=IoWCM6iH3mJn3m4BftBB:22 X-Proofpoint-ORIG-GUID: OJEWc-39npT85Avkm25fjCIfaHOhPr2- X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDIxMDAzMiBTYWx0ZWRfXxNyiRiQBX5K2 btbANwBtdMwxI5P+wDxF1fWtNaRnjWK0ttjaOY7X6CAnfK4e+eJwaggFAxE4ny/EwqbyofxJmyJ Um2H3L6tqwybpN/U3vmKBVpzsdhJ0z00kXgH+ZrThFhR2g11AMpas2B2l7SVyzxRqLF0MCLMI5S 0jmQcEmLhTl3gfWMNtA6EyQWGFe6zis6DUz8HiqulD3PFRwGnQtUVvxud4dZC0G3RcZCeP95Tf9 hqg6kXSG/RTssNyllh0gbWYCAvqwDJvXRjgHt0Kab36RdzRaostM5nsu0ZAO8GLgXwLrigS6TdX B/kCP8iFRqfkbp88sCniT7YA5n91g4rB9Ffhvt+Yrz4Or/lR1RtfyfuYcjXnSL6qWL8MnbONZje RriK4cKrCdnoR2/uPTsuZct22Pvwh7ws+s9pK/WcprpxcHXI+zIGBvgWm701+F9F71W15smj0N0 OC6+chBQv0iXWsl8ygA== X-Proofpoint-GUID: OJEWc-39npT85Avkm25fjCIfaHOhPr2- X-Proofpoint-Spam-Info: AW1haW4tMjYxMDIxMDAzMiBTYWx0ZWRfX2+ieRfNTkYh6 7LEwBqBtBjIBAaPjDh6c54yHocCgBZhHThjQOykHMy6fanZWKLFvLk3Fln6rHsBmHRHxsX+aa+0 2m6tq1WLNaPjTPL+rLa6pqNUnN+xukA= X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-10-21_02,2026-10-19_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 clxscore=1015 impostorscore=0 spamscore=0 bulkscore=0 malwarescore=0 suspectscore=0 adultscore=0 phishscore=0 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610190000 definitions=main-2610210032 On 10/20/26 8:54 AM, Julius Bairaktaris wrote: > From: Vladyslav Andreichykov > > bias_pll_cc_clk and bias_pll_nss_noc_clk are outputs of the CMN PLL, > which takes its AHB and SYS clocks from GCC, so the device tree does not > pass them back to GCC. With only .fw_name these parents never resolve, > nss_ppe_clk_src stays an orphan, and setting it to 300 MHz fails with > -EINVAL. The NSS clocks below it, such as gcc_nss_edma_clk, read 0 Hz. Because this is a "never could have worked" situation, we should properly fix it by adding the DT references to those clocks. This way we also get fw_devlink which will ensure the probe ordering is right. Konrad