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Wed, 10 Dec 2025 07:47:48 -0800 (PST) X-Google-Smtp-Source: AGHT+IF6dorJamTns9GTKO04LeR4DjDWK+WEpzhDsqeXgTLByAyIlvR84qy71AQVlBexqy+DZg/83A== X-Received: by 2002:a17:90b:3dcb:b0:32d:db5b:7636 with SMTP id 98e67ed59e1d1-34a72885f90mr2617021a91.27.1765381667401; Wed, 10 Dec 2025 07:47:47 -0800 (PST) Received: from [10.218.4.141] ([202.46.22.19]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-34a70823084sm2911955a91.10.2025.12.10.07.47.42 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 10 Dec 2025 07:47:46 -0800 (PST) Message-ID: <72c817b8-0485-4769-90d3-c93a462ccef5@oss.qualcomm.com> Date: Wed, 10 Dec 2025 21:17:35 +0530 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 V1 2/3] dt-bindings: ufs: Document bindings for SA8255P UFS Host Controller To: Krzysztof Kozlowski Cc: mani@kernel.org, alim.akhtar@samsung.com, avri.altman@wdc.com, bvanassche@acm.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, James.Bottomley@hansenpartnership.com, martin.petersen@oracle.com, quic_ahari@quicinc.com, linux-arm-msm@vger.kernel.org, linux-scsi@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20251114145646.2291324-1-ram.dwivedi@oss.qualcomm.com> <20251114145646.2291324-3-ram.dwivedi@oss.qualcomm.com> <20251115-polite-kakapo-of-satiation-0a0288@kuoka> Content-Language: en-US From: Ram Kumar Dwivedi In-Reply-To: <20251115-polite-kakapo-of-satiation-0a0288@kuoka> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Authority-Analysis: v=2.4 cv=A7Jh/qWG c=1 sm=1 tr=0 ts=69399625 cx=c_pps a=RP+M6JBNLl+fLTcSJhASfg==:117 a=fChuTYTh2wq5r3m49p7fHw==:17 a=IkcTkHD0fZMA:10 a=wP3pNCr1ah4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=gEfo2CItAAAA:8 a=COk6AnOGAAAA:8 a=EUspDBNiAAAA:8 a=MfuJy7bjgNQ4vI8lL90A:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=iS9zxrgQBfv6-_F4QbHw:22 a=sptkURWiP4Gy88Gu7hUp:22 a=TjNXssC_j7lpFel5tvFf:22 X-Proofpoint-GUID: DGPflkj2ZF35iZvx713-EgjE1P_nvioq X-Proofpoint-ORIG-GUID: DGPflkj2ZF35iZvx713-EgjE1P_nvioq X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMjEwMDEyOCBTYWx0ZWRfX7B7tuGQRo+Bq 92psYW3CgPpqXZnBtM4UmvAtWDKM8HL9iCDoOYEdrN5DpmqnGQIjEivTE5X7Aj/xjg5ydyEejPz XTOG/VwE4ZMME7i3lNdlhKOGQjyoULBe/kL8FA7DhhukplV3eFfOx6Sph8Hyu8KICiR03ovmx+5 NYOUo6uaOSAnsAz3K12nB4Lp1TmkgP863nH9Te35lL7Jt/Ll3f7Qbnk1v2kCYQIh+ktik7Cr9JN jIt+HXQbGi2ZXj5Y8Rc0vCy1XgKPfHiMQy0oumy2cDUbFpr61KWzvAulhjIzyWGqsHq74f8NU1D FAegkwIBYKSjVz4q+taw8wo/+a9p+4RfgjP3B/AmS6k2mT9oUS2qYBGtoV3tvCMpaYPozybnHx/ Qi0pCL2UnpaPKwfHbSpQIUElTTnWwg== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2025-12-10_01,2025-12-09_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 malwarescore=0 priorityscore=1501 adultscore=0 phishscore=0 suspectscore=0 clxscore=1015 bulkscore=0 impostorscore=0 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2510240001 definitions=main-2512100128 On 15-Nov-25 5:25 PM, Krzysztof Kozlowski wrote: > On Fri, Nov 14, 2025 at 08:26:45PM +0530, Ram Kumar Dwivedi wrote: >> From: Ram Kumar Dwivedi >> >> Document the device tree bindings for UFS host controller on >> Qualcomm SA8255P platform which integrates firmware-managed >> resources. >> >> The platform firmware implements the SCMI server and manages >> resources such as the PHY, clocks, regulators and resets via the >> SCMI power protocol. As a result, the OS-visible DT only describes >> the controller’s MMIO, interrupt, IOMMU and power-domain interfaces. >> >> The generic "qcom,ufshc" and "jedec,ufs-2.0" compatible strings are >> removed from the binding, since this firmware managed design won't >> be compatible with the drivers doing full resource management. >> >> Co-developed-by: Anjana Hari >> Signed-off-by: Anjana Hari >> Signed-off-by: Ram Kumar Dwivedi >> --- >> .../bindings/ufs/qcom,sa8255p-ufshc.yaml | 63 +++++++++++++++++++ >> 1 file changed, 63 insertions(+) >> create mode 100644 Documentation/devicetree/bindings/ufs/qcom,sa8255p-ufshc.yaml >> >> diff --git a/Documentation/devicetree/bindings/ufs/qcom,sa8255p-ufshc.yaml b/Documentation/devicetree/bindings/ufs/qcom,sa8255p-ufshc.yaml >> new file mode 100644 >> index 000000000000..3b31f6282feb >> --- /dev/null >> +++ b/Documentation/devicetree/bindings/ufs/qcom,sa8255p-ufshc.yaml >> @@ -0,0 +1,63 @@ >> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause >> +%YAML 1.2 >> +--- >> +$id: http://devicetree.org/schemas/ufs/qcom,sa8255p-ufshc.yaml# >> +$schema: http://devicetree.org/meta-schemas/core.yaml# >> + >> +title: Qualcomm SA8255P UFS Host Controller >> + >> +maintainers: >> + - Ram Kumar Dwivedi >> + - Anjana Hari >> + >> +properties: >> + compatible: >> + const: qcom,sa8255p-ufshc >> + >> + reg: >> + maxItems: 1 >> + >> + interrupts: >> + maxItems: 1 >> + >> + iommus: >> + maxItems: 1 >> + >> + dma-coherent: > > Just :true. > >> + type: boolean Hi Krzysztof, I have updated this in latest patchset. Thanks, Ram. > > Best regards, > Krzysztof >