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[108.208.224.205]) by smtp.gmail.com with ESMTPSA id 00721157ae682-8b155f8af63sm4525777b3.2.2026.10.22.14.34.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Oct 2026 14:34:14 -0700 (PDT) From: Tyler Baker To: Aswin Murugan Cc: casey.connolly@linaro.org, neil.armstrong@linaro.org, sumit.garg@kernel.org, trini@konsulko.com, lukma@nabladev.com, marek.vasut+usb@mailbox.org, Michael.Srba@seznam.cz, nathbappai@gmail.com, nikroks@mainlining.org, luca.weiss@fairphone.com, jbx6244@gmail.com, u-boot-qcom@groups.io, u-boot@lists.u-boot-project.org Subject: Re: [PATCH v3 2/8] clk: qcom: add NEGCC driver for nord Date: Thu, 22 Oct 2026 17:34:02 -0400 Message-ID: <20261022213402.765757-1-tyler.baker@oss.qualcomm.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20261021160448.3893858-3-aswin.murugan@oss.qualcomm.com> References: <20261021160448.3893858-1-aswin.murugan@oss.qualcomm.com> <20261021160448.3893858-3-aswin.murugan@oss.qualcomm.com> X-Archived-By: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDIyMDA4NSBTYWx0ZWRfX4G3VfEFh0OQ3 6hMlp+bP8U4aF6KK00fHTl8dLBJXtFfV0yhE+asQjo32lVRN7Okfq4rQ3VAD+Bk3MocIR4W01jl FDMU8X23dswpCFzC/uMFOwmHy3UTWG9gZr0ewa5N9qE1BwT/DBNHutRGcBC2jhfFfpS00iB9Nra +zZtaNpwSgMMaVDGxjp0MPXwVvApmOcI9eom5zoeWZyzUScp34WsVrregwlFjXlebNSoZ0n7CWZ la30UjWOTEhH4w6CBWg/C66CD62oIi9i4bvUltwwKCTSK/h0u0iwfy+Ay+40ZE2tw/MDYNYSJcR dYRcBUsXE7X4FZCG6Bx8nfrvYCWZQb862j1mfTqY5LUUNOF0Ag7Hv9BSW0qlJbwemSEiHlj36LV c5UNDBCo/0cK4a/t7BEPGfplU12DROESWzjVhT8lwvcEnhEWjGkRHBFtI4HEEQuUnJlfjVenCx/ rF/gI5ypvzN9pqyTEjg== X-Proofpoint-GUID: 9rCHHQd-VYU9aV-9JsNVJJXm0oJTUgE4 X-Proofpoint-Spam-Info: AW1haW4tMjYxMDIyMDA4NSBTYWx0ZWRfX69yduKWZ7mNA xLJ1CMjmmVxyN4jYbnOkQmMaovGs4vUQlc+xbaF0AbHUPhyGazm/Ke1Oh9ewf5YtswQhYfk3yWG hfb/jW9rKKFn6YNt2t82lLSbGeZz5mI= X-Authority-Analysis: v=2.4 cv=UdbE26SN c=1 sm=1 tr=0 ts=6ada8158 cx=c_pps a=0mLRTIufkjop4KoA/9S1MA==:117 a=PFxtTy0squD/fJwW5Be2sw==:17 a=IkcTkHD0fZMA:10 a=660iZSQnnn4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=YMgV9FUhrdKAYTUUvYB2:22 a=hHpV1f6ju06AK3y-cPYA:9 a=QEXdDO2ut3YA:10 a=WgItmB6HBUc_1uVUp3mg:22 X-Proofpoint-ORIG-GUID: 9rCHHQd-VYU9aV-9JsNVJJXm0oJTUgE4 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.138,FMLib:17.12.100.49 definitions=2026-10-22_06,2026-10-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 phishscore=0 bulkscore=0 clxscore=1015 adultscore=0 priorityscore=1501 suspectscore=0 lowpriorityscore=0 spamscore=0 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610190000 definitions=main-2610220085 X-BeenThere: u-boot@lists.u-boot-project.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: U-Boot discussion List-Archive: List-Post: List-Help: List-Subscribe: , X-Spam-Status: No, score=-8.9 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 On Wed, 21 Oct 2026 at 21:34, Aswin Murugan wrote: [...] > + * negcc-nord.c calls qcom_branch_set_force_mem_core() on Leftover note, drop it. [...] > + WARN(rate != 14745600, > + "Unexpected rate for NE_GCC_QUPV3_WRAP2_S1_CLK: %lu\n", rate); > + clk_rcg_set_rate_mnd(priv->base, NE_GCC_QUPV3_WRAP2_S1_CLK_CMD_RCGR, > + 1, 384, 15625, CFG_CLK_SRC_GPLL0, 16); > + return rate; The UART asks for 7372800 at 115200, so this sets 14.7456 MHz, returns 7372800 and the baud doubles. Use a freq table and return the real rate. Same in segcc. > + 3, 0, 0, CFG_CLK_SRC_GPLL0, 8); div is the raw field (2 * div - 1): 3 is /2, 300 MHz. Linux max is 240. USB20 master below gets 200 MHz, Linux max 120. > + 1, 0, 0, CFG_CLK_SRC_CXO, 0); No MND here, use clk_rcg_set_rate(). Also 20 CBCR-backed gates here use GATE_CLK, see 1/8.