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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b9b203eec9fsm219026466b.42.2026.03.27.03.10.52 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 27 Mar 2026 03:10:53 -0700 (PDT) Message-ID: Date: Fri, 27 Mar 2026 11:10:51 +0100 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 v5 1/2] dt-bindings: phy: qcom: Add CSI2 C-PHY/DPHY schema From: Konrad Dybcio To: Bryan O'Donoghue , Vinod Koul , Kishon Vijay Abraham I , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Neil Armstrong Cc: Bryan O'Donoghue , Vladimir Zapolskiy , linux-arm-msm@vger.kernel.org, linux-phy@lists.infradead.org, linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260326-x1e-csi2-phy-v5-0-0c0fc7f5c01b@linaro.org> <20260326-x1e-csi2-phy-v5-1-0c0fc7f5c01b@linaro.org> <7712fbdd-a225-49f0-aeb9-ebcbb9d5abac@oss.qualcomm.com> Content-Language: en-US In-Reply-To: <7712fbdd-a225-49f0-aeb9-ebcbb9d5abac@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzI3MDA3NSBTYWx0ZWRfX5n2xERyCQtTK ISJlgFqGH86LQOkCkQ8JxSgtDijyKiC9/26+e3ocfzvLHA8TZcJYHC3YLKWtDYxhgBLaEHVFKvl ZcdWXDkdB6AGNHkzJnwhzdjgSMoa69zf5NeAlhcMPHscgtEHFvCsItFvzJc26+mlIAJNoChAd7C YazBQmZ9LjaFwEZOfg88hOHD5JxTjS8n0Bqxh712DieDdDaDfuiF9TQVmPgThEYRX8ddep50FVo hWHilt2xYkNQd4oSaGW2qE4/v9uB1sLI+kz/9MnS/vYPM2FK45P95BAVq93mH7eQjuHZRKiJKvV VMMyw3TYEjl4YRjNp0v0pbx0T4VcxvQCGfE8pKlldqgyrG/EWodUYbn3uDY2BzqH7hHHRNTVl/5 XnROIgn3WMOCENrv5V8a15FRiaqxvajXrpeXuB+8pwlor11NZt9pJ7bv5/+WkMKDeOkYXyuzFky 1hMKUHNonaWMO4vOQIg== X-Proofpoint-GUID: bQOT2HIuclXbwfevldtAI0CUfyBOkaDK X-Proofpoint-ORIG-GUID: bQOT2HIuclXbwfevldtAI0CUfyBOkaDK X-Authority-Analysis: v=2.4 cv=JaCxbEKV c=1 sm=1 tr=0 ts=69c657af cx=c_pps a=EVbN6Ke/fEF3bsl7X48z0g==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=rJkE3RaqiGZ5pbrm-msn:22 a=-gb4YIgPANaGSZa7PYgA:9 a=QEXdDO2ut3YA:10 a=a_PwQJl-kcHnX1M80qC6:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-03-26_04,2026-03-26_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 priorityscore=1501 phishscore=0 bulkscore=0 malwarescore=0 lowpriorityscore=0 spamscore=0 impostorscore=0 adultscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2603270075 On 3/27/26 11:07 AM, Konrad Dybcio wrote: > On 3/26/26 2:04 AM, Bryan O'Donoghue wrote: >> Add a base schema initially compatible with x1e80100 to describe MIPI CSI2 >> PHY devices. >> >> The hardware can support both CPHY, DPHY and a special split-mode DPHY. We >> capture those modes as: >> >> - PHY_QCOM_CSI2_MODE_DPHY >> - PHY_QCOM_CSI2_MODE_CPHY >> - PHY_QCOM_CSI2_MODE_SPLIT_DPHY > > Does the _PHY_ DT node need to be aware about this upfront? > > If we have some sideband signal (e.g. the sensor driver specifically > requesting C-PHY mode), we can simply throw all this complexity into > phy_mode + phy_configure_opts, all at runtime Actually perhaps just phy_configure_opts, because phy_mode could be left as "MIPI_CSI" to reduce complexity (while still carrying info about D/C mode in the latter) Konrad