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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-6397c9355c3sm5880830a12.0.2025.10.07.04.42.16 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 07 Oct 2025 04:42:17 -0700 (PDT) Message-ID: <1d052b98-4dfd-4ee3-b46f-ac043b406d58@oss.qualcomm.com> Date: Tue, 7 Oct 2025 13:42:15 +0200 Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v4 1/4] dt-bindings: mmc: Add dll-hsr-list for HS400 and HS200 modes To: Ram Prakash Gupta , Rob Herring Cc: Ulf Hansson , Krzysztof Kozlowski , Conor Dooley , Adrian Hunter , Bjorn Andersson , Konrad Dybcio , linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, dmitry.baryshkov@oss.qualcomm.com, quic_pragalla@quicinc.com, quic_sayalil@quicinc.com, quic_nitirawa@quicinc.com, quic_bhaskarv@quicinc.com, kernel@oss.qualcomm.com, 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> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <817f02aa-dfb8-a134-2fd4-fbdf8e8a714e@quicinc.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-GUID: IZClZNJXPdAKjH-U_GxvuGfO2uBA9qhh X-Proofpoint-ORIG-GUID: IZClZNJXPdAKjH-U_GxvuGfO2uBA9qhh X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMDA2MDE2OCBTYWx0ZWRfX4udLIYwCWxlE TsvfOdHVDXMxJiUoJY8471l/u9TYHhbnZ7AwiLLbZvf7ljqhSV7y/Mr4DUd53T4umuKLMluW1Qp akfAamR92sTH0GCrmjVbb9D0y92TFjtHdIeWB4JIwe3gfGZ6d++/B9jR011FvQzW8PBqaouDzqV YTS3YceSaI7cfhkkXAQwvRfzngvveZWwvq5Do5pOJchCr+n7T5Wnjranq19j6ucmTXkQKv4Qoj3 9g+YVJL7VFiqpc4qAJtZKtw8D8j4UxycgmiSW6PExIrnoXGeTBlolA8y1A+RWooNzuu/JSFNr4t f5QGj28xPHoj+jzlGYq6wqSwyRBpKHizQAW9lYGZ+ZZr4VHxHgIvL7Wgev5gVz7n8HYjxHBP3Cc B0kMQeACe/nFTtX/eoZvq6aqJApkIA== X-Authority-Analysis: v=2.4 cv=BuCQAIX5 c=1 sm=1 tr=0 ts=68e4fc9d cx=c_pps a=7E5Bxpl4vBhpaufnMqZlrw==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=x6icFKpwvdMA:10 a=COk6AnOGAAAA:8 a=Nkk5IEO714fOIWWTyTAA:9 a=QEXdDO2ut3YA:10 a=pJ04lnu7RYOZP9TFuWaZ:22 a=TjNXssC_j7lpFel5tvFf: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=2025-10-06_07,2025-10-06_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 bulkscore=0 adultscore=0 priorityscore=1501 phishscore=0 lowpriorityscore=0 clxscore=1015 spamscore=0 suspectscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2509150000 definitions=main-2510060168 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