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Tue, 09 Jun 2026 06:25:42 -0700 (PDT) X-Received: by 2002:a05:622a:650:b0:50e:5cc1:1de9 with SMTP id d75a77b69052e-51795c6ecdemr167578321cf.7.1781011541522; Tue, 09 Jun 2026 06:25:41 -0700 (PDT) Received: from [192.168.120.170] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-bf05176fd14sm1051546966b.11.2026.06.09.06.25.38 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 09 Jun 2026 06:25:40 -0700 (PDT) Message-ID: <03ec182f-b1a2-4ebe-8e48-9e88168f7694@oss.qualcomm.com> Date: Tue, 9 Jun 2026 15:25:37 +0200 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 1/5] dt-bindings: clock: qcom: Add bindings for PDM GP_MN clock divider To: Taniya Das , Bjorn Andersson , Michael Turquette , Stephen Boyd , Brian Masney , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Linus Walleij , Richard Cochran , Konrad Dybcio Cc: Ajit Pandey , Imran Shaik , Jagadeesh Kona , linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, netdev@vger.kernel.org References: <20260602-pdm_clk_gp_mnd_v1-v1-0-1522662b6c53@oss.qualcomm.com> <20260602-pdm_clk_gp_mnd_v1-v1-1-1522662b6c53@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260602-pdm_clk_gp_mnd_v1-v1-1-1522662b6c53@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-ORIG-GUID: hDRtfnbbHzD3SswpPlcySH5vyfTyimfm X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNjA5MDEyNyBTYWx0ZWRfX7L4MKAD1RxzP ROwocXz7k/zmp+YHR6zB5HXPL6lcOsEJBkzrxeYGGOfExIF0SzAxncXjkIkMQASRfNtxYfBAyaU nae/9mUJf6/iOyImL5hd2tpF/4irseqRckfTZ0RUsfTlE6FvQ0H1FWhmhMQr8iHGzd7Z1bNKfOb 1/tnzwzhRPZDHTL1GanqylY6tYgDR5SJ655FCHwXezS7AfPMnIcEmDGBHmb2rxnv5jbSr8D13ep e9kobiJoTPSgLj6XhGYWVpqrfxgrUAbiJNr2GTI9RUtRIRNx0mt5UoIETePdnZwcAG3SLNw6PLS 6eME+uCiSSIfJMBbGzGgOA1N0X8VOd0+T8FQdMbaWqFxs4Ygxo8MB/Co07NcCTq7KglTMjYYltb Pewi5lIoIvlUS3ebhBdttSVJvDJA8ME9EsuUZ1BUEm9WAp1nEmXQyc/jFrEBatXflVVRON7dT5L WdfVRSQyYMs6KOHF/Rg== X-Proofpoint-GUID: hDRtfnbbHzD3SswpPlcySH5vyfTyimfm X-Authority-Analysis: v=2.4 cv=doTrzVg4 c=1 sm=1 tr=0 ts=6a281456 cx=c_pps a=WeENfcodrlLV9YRTxbY/uA==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=FelO9ux0wxsA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=gowsoOTTUOVcmtlkKump:22 a=EUspDBNiAAAA:8 a=5seiv-aHSsnqfVfbp2gA:9 a=QEXdDO2ut3YA:10 a=kacYvNCVWA4VmyqE58fU:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-06-09_03,2026-06-09_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 spamscore=0 bulkscore=0 lowpriorityscore=0 priorityscore=1501 impostorscore=0 phishscore=0 clxscore=1015 malwarescore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2605210000 definitions=main-2606090127 On 6/2/26 5:21 PM, Taniya Das wrote: > Add device tree bindings for the Qualcomm Peripheral Web's PDM GP_MN > clock divider. The hardware generates a fractional output frequency > from a fixed input clock (typically TCXO4) using the relation > Fout = Fin * (M / N), with duty cycle controlled by a separate D > register. The clock output is routed over a gpio controlled pin. > > Signed-off-by: Taniya Das > --- [...] > + clock-output-names: > + maxItems: 1 This should be deferred to the driver > + > + pinctrl-0: > + description: Pin configuration for the GP_MN output in the active state. > + > + pinctrl-names: > + items: > + - const: active I think these 2 are always allowed/defined > + > + assigned-clocks: > + maxItems: 1 > + description: Parent clock phandle used to set the input frequency. > + > + assigned-clock-rates: > + maxItems: 1 > + description: | > + Rate for the parent clock in Hz. > + Supported rates: 19200000, 9600000, 6400000, 4800000. Likewise, we could simply set_rate on the GCC clock which is the parent of this one, via something like CLK_SET_RATE_PARENT Konrad