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Tue, 20 Oct 2026 01:33:44 -0700 (PDT) Received: from [192.168.226.26] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c4090dcf123sm456787166b.14.2026.10.20.01.33.40 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 20 Oct 2026 01:33:43 -0700 (PDT) Message-ID: Date: Tue, 20 Oct 2026 10:33:39 +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 04/10] clk: qcom: clk-rcg2: forward the gfx3d rate request to the parent To: Dmitry Baryshkov , Bjorn Andersson , Abel Vesa , Stephen Boyd , Brian Masney , Jerome Brunet , Joonwoo Park , Imran Khan , Rajendra Nayak , Jeffrey Hugo , Maxime Ripard , Vikash Garodia , Dikshita Agarwal , Bryan O'Donoghue , Mauro Carvalho Chehab , Ilia Lin , Loic Poulain , Konrad Dybcio , Yassine Oudjana , Dmitry Baryshkov , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, devicetree@vger.kernel.org References: <20261019-msm8998-fix-clocks-v1-0-370949e4d8a0@oss.qualcomm.com> <20261019-msm8998-fix-clocks-v1-4-370949e4d8a0@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20261019-msm8998-fix-clocks-v1-4-370949e4d8a0@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=aIplOr9m c=1 sm=1 tr=0 ts=6ad7276e cx=c_pps a=hnmNkyzTK/kJ09Xio7VxxA==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=660iZSQnnn4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=YMgV9FUhrdKAYTUUvYB2:22 a=EUspDBNiAAAA:8 a=RaLkOdssimeRB-vWfmoA:9 a=QEXdDO2ut3YA:10 a=PEH46H7Ffwr30OY-TuGO:22 X-Proofpoint-Spam-Info: AW1haW4tMjYxMDIwMDAzMyBTYWx0ZWRfX24bqB9WPemy/ JA3guQ2F1Hp9Bb9lLXDIwmGlWHy/esRAnXXP8ehp9nRqw69m9a+ufk8KbTh2eT2WeQF+T4cg6tE g0bTsBQdfLrUdmIxg9BhM3hEQ2H2zrs= X-Proofpoint-GUID: Vajs8y73xI0iiChhd0iIhOa0PURe7hk8 X-Proofpoint-ORIG-GUID: Vajs8y73xI0iiChhd0iIhOa0PURe7hk8 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDIwMDAzMyBTYWx0ZWRfX+w12R4KmW2Nk cfi1l0lI8YDdNNo8Z3ZpRODP6e8WJ5vx59dekCPm6NeivEKHF4CPEXCphn+eVSap9CPsU/CnRnJ ycX8B0xy1LJSqkYnTu2qx4pONEtk1ICzQWXQVMyyN5CO/tGNjYY7t7klzozbBTRS0Qn2X9F56Cc kTAsqBzYDCqiuZzFnA5oX3WVKBHHAlWmhDQLwPl6KKu+Eu6PH0Mf7OY+yC1ivOrl52Ne5FZ056w fCbe44rAJbRboPpmueo6MlAs5lA6Eabida9kecJqk1x7AwUEi4upPpMhK8uQ1GSIJ365uDR0sw2 /BromaRMKLs869il0WdGNmw+L0f1+dIasKyepgTI7E+qWeSKxtwgLvqAhcUflNWZoMwlXN/azfu NUdk54VUPy2/aeRs/25QmXLgF2mEinKEajSjJrv+aETPEwYGwH84fvtQcMA92ucGjClegN+axn4 S8ICS4vv8CYWrjGF0CA== 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=2026-10-20_01,2026-10-19_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 lowpriorityscore=0 adultscore=0 bulkscore=0 suspectscore=0 spamscore=0 impostorscore=0 phishscore=0 priorityscore=1501 clxscore=1015 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610190000 definitions=main-2610200033 On 10/19/26 3:41 PM, Dmitry Baryshkov wrote: > GPU DVFS on SDM660 never changed the GFX3D rate. clk_gfx3d_determine_rate() > builds the parent request by hand and leaves best_parent_rate at zero, so > the PLL is asked to determine a rate for a zero parent rate and the new > rate is dropped on the floor. > > Use clk_hw_forward_rate_request(), which fills in the parent's limits and > rate the way the core expects them. > > Fixes: af1e62f2ffe2 ("clk: qcom: clk-rcg2: Take clock boundaries into consideration for gfx3d") > Signed-off-by: Dmitry Baryshkov > --- Acked-by: Konrad Dybcio Konrad