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Mon, 28 Oct 2024 14:04:23 GMT Received: from nsssdc-sh01-lnx.ap.qualcomm.com (10.80.80.8) by nasanex01b.na.qualcomm.com (10.46.141.250) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.9; Mon, 28 Oct 2024 07:04:18 -0700 From: Luo Jie Subject: [PATCH v5 0/4] Add CMN PLL clock controller driver for IPQ9574 Date: Mon, 28 Oct 2024 22:04:07 +0800 Message-ID: <20241028-qcom_ipq_cmnpll-v5-0-339994b0388d@quicinc.com> Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-B4-Tracking: v=1; b=H4sIANeZH2cC/2XOTQ6CMBAF4KuQrq3pL1RX3sMYImWQSaBAq42Gc HcLCxPD8k3mfTMzCeARAjlnM/EQMeDgUtCHjNj27h5AsU6ZCCYUZ1zRyQ59ieNU2t6NXUerGlg uTaM4z0lqjR4afG/i9ZZyi+E5+M92IMp1ulnMiGJnRUkZNcDYyYIFU4nL9EKLzh7TIlm1qH5C+ kbvBZUEURheNBVIzfS/sCzLF1ou0X7yAAAA To: Bjorn Andersson , Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Catalin Marinas , Will Deacon , Konrad Dybcio CC: , , , , , , , , , , , , Luo Jie , Krzysztof Kozlowski X-Mailer: b4 0.14.1 X-Developer-Signature: v=1; a=ed25519-sha256; t=1730124258; l=3680; i=quic_luoj@quicinc.com; s=20240808; h=from:subject:message-id; bh=SOIvPyJRmfJFGhYZ/LtCwoJ8ea6QC7C8lqnI5ohpZWU=; b=Q8ogq98h7xQnI1EwFgrxsiytJ6hwx2Fa+PSz1A+TvIrhXe4q7BKMsvKnee2EvHG+6+QF+5Uuh g9v/6br40RhCxsASFJLuUM/JLP14rokvxXw9va/c39P7GFIvTXhYvP3 X-Developer-Key: i=quic_luoj@quicinc.com; a=ed25519; pk=P81jeEL23FcOkZtXZXeDDiPwIwgAHVZFASJV12w3U6w= X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nasanex01b.na.qualcomm.com (10.46.141.250) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: htoyhtuBrr-Vrd1PcZnwdTSInhPjOI-S X-Proofpoint-GUID: htoyhtuBrr-Vrd1PcZnwdTSInhPjOI-S X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.60.29 definitions=2024-09-06_09,2024-09-06_01,2024-09-02_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 malwarescore=0 clxscore=1015 impostorscore=0 suspectscore=0 spamscore=0 mlxscore=0 adultscore=0 priorityscore=1501 mlxlogscore=999 phishscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2409260000 definitions=main-2410280113 The CMN PLL clock controller in Qualcomm IPQ chipsets provides the clocks to the networking hardware blocks that are internal or external to the SoC, and to the GCC. This driver configures the CMN PLL clock controller to enable the output clocks. The networking blocks include the internal blocks such as PPE (Packet Process Engine) and PCS blocks, and external hardware such as Ethernet PHY or switch. The CMN PLL block also outputs fixed rate clocks to GCC, such as 24 MHZ as XO clock and 32 KHZ as sleep clock supplied to GCC. The controller expects the input reference clock from the internal Wi-Fi block acting as the clock source. The output clocks supplied by the controller are fixed rate clocks. The CMN PLL hardware block does not include any other function other than enabling the clocks to the networking hardware blocks and GCC. The driver is being enabled to support IPQ9574 SoC initially, and will be extended for other SoCs. Signed-off-by: Luo Jie --- Changes in v5: - Move the hardware configurations into set_rate() from determine_rate(). - Remove the dependency on IPQ_GCC_9574. - Correct the header files included. - Update reference clock of CMN PLL to use fixed factor clock. - Link to v4: https://lore.kernel.org/r/20241015-qcom_ipq_cmnpll-v4-0-27817fbe3505@quicinc.com Changes in v4: - Rename driver file to ipq-cmn-pll.c - Register CMN PLL as a 12 GHZ clock. - Configure CMN PLL input ref clock using clk_ops::determine_rate(). Add the additional output clocks to GCC and PCS. - Update the same information in dtbindings. - Use PM clock APIs for input clock enablement. - Link to v3: https://lore.kernel.org/r/20240827-qcom_ipq_cmnpll-v3-0-8e009cece8b2@quicinc.com Changes in v3: - Update description of dt-binding to explain scope of 'CMN' in CMN PLL. - Collect Reviewed-by tags for dtbindings and defconfig patches. - Enable PLL_LOCKED check for the stability of output clocks. - Link to v2: https://lore.kernel.org/r/20240820-qcom_ipq_cmnpll-v2-0-b000dd335280@quicinc.com Changes in v2: - Rename the dt-binding file with the compatible. - Remove property 'clock-output-names' from dt-bindings and define names in the driver. Add qcom,ipq-cmn-pll.h to export the output clock specifier. - Alphanumeric ordering of 'cmn_pll_ref_clk' node in DTS. - Fix allmodconfig error reported by test robot. - Replace usage of "common" to "CMN" to match the name with the hardware specification. - Clarify in commit message on scope of CMN PLL function. - Link to v1: https://lore.kernel.org/r/20240808-qcom_ipq_cmnpll-v1-0-b0631dcbf785@quicinc.com --- Luo Jie (4): dt-bindings: clock: qcom: Add CMN PLL clock controller for IPQ SoC clk: qcom: Add CMN PLL clock controller driver for IPQ SoC arm64: defconfig: Enable Qualcomm IPQ CMN PLL clock controller arm64: dts: qcom: Add CMN PLL node for IPQ9574 SoC .../bindings/clock/qcom,ipq9574-cmn-pll.yaml | 85 ++++ arch/arm64/boot/dts/qcom/ipq9574-rdp-common.dtsi | 16 +- arch/arm64/boot/dts/qcom/ipq9574.dtsi | 26 +- arch/arm64/configs/defconfig | 1 + drivers/clk/qcom/Kconfig | 9 + drivers/clk/qcom/Makefile | 1 + drivers/clk/qcom/ipq-cmn-pll.c | 436 +++++++++++++++++++++ include/dt-bindings/clock/qcom,ipq-cmn-pll.h | 22 ++ 8 files changed, 594 insertions(+), 2 deletions(-) --- base-commit: d61a00525464bfc5fe92c6ad713350988e492b88 change-id: 20241014-qcom_ipq_cmnpll-bde0638f4116 Best regards,