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Mon, 13 Oct 2025 13:04:51 +0000 (GMT) Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA01.qualcomm.com (8.18.1.2/8.18.1.2) with ESMTPS id 59DD4o3c032493 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 13 Oct 2025 13:04:50 GMT Received: from [10.217.216.18] (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1748.24; Mon, 13 Oct 2025 06:04:45 -0700 Message-ID: <88220541-e344-443d-353c-be738437254e@quicinc.com> Date: Mon, 13 Oct 2025 18:34:42 +0530 Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.15.1 Subject: Re: [PATCH v4 1/4] dt-bindings: mmc: Add dll-hsr-list for HS400 and HS200 modes Content-Language: en-US To: Konrad Dybcio , Rob Herring CC: Ulf Hansson , Krzysztof Kozlowski , Conor Dooley , Adrian Hunter , Bjorn Andersson , "Konrad Dybcio" , , , , , , , , , , , Sachin Gupta References: <20250929113515.26752-1-quic_rampraka@quicinc.com> <20250929113515.26752-2-quic_rampraka@quicinc.com> <20251006214830.GB625548-robh@kernel.org> <817f02aa-dfb8-a134-2fd4-fbdf8e8a714e@quicinc.com> <1d052b98-4dfd-4ee3-b46f-ac043b406d58@oss.qualcomm.com> From: Ram Prakash Gupta In-Reply-To: <1d052b98-4dfd-4ee3-b46f-ac043b406d58@oss.qualcomm.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nalasex01a.na.qualcomm.com (10.47.209.196) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: Ff5d8oTEayibpIVhbQvK0FbTVxkqdv6z X-Proofpoint-ORIG-GUID: Ff5d8oTEayibpIVhbQvK0FbTVxkqdv6z X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMDExMDAxNyBTYWx0ZWRfX/x8zUw4OyqgU jDFGVhaWOfDlodZStUtPDviW9+dWSyNFlmoi7Tn4+OFTRgQjmVCxQqYpA3wQ/fLaxblxMhx+jXV Fz9jVKJPhbNz84bWORPRZ0flSIWplKV53cj8f15Ln+M8U32VMwo5Lhb2AM1U9I7KywPkkozdyuB Q5WmT+MHGE1Z1gg6UHqlyWCKZOrMW8AVwE1hC0f7AdYUzJD2kyzDiBBnwMzNyVpLtJZu6aiFluK dF6/AjEw67+MXNF8OCDfj8Uikg0XIZ3pyPf+5sAHZDs2IeQL5KOxxiDdQj/M3NTbCE7Rx1jZ+CW kWCycwrWr6soa1ZaastG9wfeY1Bvc1tf830ufiYxrV3KxoqWGhNh3Xx+8CNvWPYzmLlLW6Rjdrm +DfXgaxUuebe0FVh8Y8XABeF8I41Xw== X-Authority-Analysis: v=2.4 cv=JLw2csKb c=1 sm=1 tr=0 ts=68ecf8f3 cx=c_pps a=ouPCqIW2jiPt+lZRy3xVPw==:117 a=ouPCqIW2jiPt+lZRy3xVPw==:17 a=GEpy-HfZoHoA:10 a=IkcTkHD0fZMA:10 a=x6icFKpwvdMA:10 a=COk6AnOGAAAA:8 a=NQjy_NEe_Y9d4xOi-4gA:9 a=QEXdDO2ut3YA:10 a=TjNXssC_j7lpFel5tvFf:22 a=cPQSjfK2_nFv0Q5t_7PE:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1117,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-10-13_04,2025-10-06_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 phishscore=0 adultscore=0 bulkscore=0 priorityscore=1501 impostorscore=0 suspectscore=0 malwarescore=0 spamscore=0 clxscore=1015 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2510020000 definitions=main-2510110017 On 10/7/2025 5:12 PM, Konrad Dybcio wrote: > On 10/7/25 1:16 PM, Ram Prakash Gupta wrote: >> On 10/7/2025 3:18 AM, Rob Herring wrote: >>> On Mon, Sep 29, 2025 at 05:05:12PM +0530, Ram Prakash Gupta wrote: >>>> From: Sachin Gupta >>>> >>>> Document the 'dll-hsr-list' property for MMC device tree bindings. >>>> The 'dll-hsr-list' property defines the DLL configurations for HS400 >>>> and HS200 modes. >>>> >>>> QC SoCs can have 0 to 4 SDHCI instances, and each one may need >>>> different tuning. >>>> >>>> Signed-off-by: Sachin Gupta >>>> Signed-off-by: Ram Prakash Gupta >>>> --- >>>> Documentation/devicetree/bindings/mmc/sdhci-msm.yaml | 5 +++++ >>>> 1 file changed, 5 insertions(+) >>>> >>>> diff --git a/Documentation/devicetree/bindings/mmc/sdhci-msm.yaml b/Documentation/devicetree/bindings/mmc/sdhci-msm.yaml >>>> index 22d1f50c3fd1..a60222473990 100644 >>>> --- a/Documentation/devicetree/bindings/mmc/sdhci-msm.yaml >>>> +++ b/Documentation/devicetree/bindings/mmc/sdhci-msm.yaml >>>> @@ -137,6 +137,11 @@ properties: >>>> $ref: /schemas/types.yaml#/definitions/uint32 >>>> description: platform specific settings for DLL_CONFIG reg. >>>> >>>> + qcom,dll-hsr-list: >>> '-list' doesn't add anything. >> list was used as there are 5 dll register, but '-list' can be >> dropped, and it can be renamed to qcom,dll-hsr, I will update in >> next patchset. >> >>> What is 'hsr'? >> Hardware Settings Reference > Maybe "qcom,dll-presets" would be more clear? > > Konrad sure, sounds good.