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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-66350b86008sm6324349a12.28.2026.03.17.02.34.06 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 17 Mar 2026 02:34:07 -0700 (PDT) Message-ID: <9048a55a-e6fe-4dee-8d37-7a998d93163a@oss.qualcomm.com> Date: Tue, 17 Mar 2026 10:34:06 +0100 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 v2 2/6] arm64: dts: qcom: sm8650: Fix xo clock supply of SD host controller To: Vladimir Zapolskiy , Bjorn Andersson , Konrad Dybcio Cc: Neil Armstrong , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Abel Vesa , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org References: <20260314023715.357512-1-vladimir.zapolskiy@linaro.org> <20260314023715.357512-3-vladimir.zapolskiy@linaro.org> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260314023715.357512-3-vladimir.zapolskiy@linaro.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-GUID: XwrrckvN1Xx64hFJm5m45sQ0thoDaTXL X-Proofpoint-ORIG-GUID: XwrrckvN1Xx64hFJm5m45sQ0thoDaTXL X-Authority-Analysis: v=2.4 cv=KLxXzVFo c=1 sm=1 tr=0 ts=69b92011 cx=c_pps a=qKBjSQ1v91RyAK45QCPf5w==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=3WHJM1ZQz_JShphwDgj5:22 a=KKAkSRfTAAAA:8 a=EUspDBNiAAAA:8 a=gMOla9jSct7F-4z9eBQA:9 a=QEXdDO2ut3YA:10 a=NFOGd7dJGGMPyQGDc5-O:22 a=cvBusfyB2V15izCimMoJ:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzE3MDA4NCBTYWx0ZWRfXxqqRwDE7Qqhr ttuOE+mCMvkTrC9VJ3zLEO9OhWOUFt6/zBK9xM24eWBNzbOGSPoJX5dDsqUthymT6NkWPZCVG5w kVwIHOoI0FsffALvi7SJH+J/RfZcv+h5asGzg/0Nffe/lHVn+aEglFFS9t1uClrTklCpqmH2cy9 E9mlktGWq0clXpd73ePrVHy8LCnjtqgwz+frhucHvsbbAI8kmFecOQRPSAl+Rp37Am/PFJd6JfP 7j5s4ksejkIYvMNnEX+44kqg2h49TnP9OISjcqiRIg5rNkBxeAt/NTdsF5HfE0Wh7/+sbNb8ws2 ig63s7xxxsTkyw/yLnJPgeE6pSwT31JV6U+70YcZnjUU+3nOH1xc7MVZwzJ6DbJkvxqfSFv1sDo kn4XZPtaGOyK8co+aWfZo15VmC9BZpMnT0rZmw9zh7O8ys9FCah0sgfvi0R8BoPGZPtxiCxEpoD C3XwqLlPOJGKNdSxQ2g== 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=2026-03-17_01,2026-03-16_06,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 phishscore=0 priorityscore=1501 lowpriorityscore=0 suspectscore=0 spamscore=0 clxscore=1015 bulkscore=0 impostorscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2603170084 On 3/14/26 3:37 AM, Vladimir Zapolskiy wrote: > The expected frequency of SD host controller core supply clock is 19.2MHz, > while RPMH_CXO_CLK clock frequency on SM8650 platform is 38.4MHz. > > Apparently the overclocked supply clock could be good enough on some > boards and even with the most of SD cards, however some low-end UHS-I > SD cards in SDR104 mode of the host controller produce I/O errors in > runtime, fortunately this problem is gone, if the "xo" clock frequency > matches the expected 19.2MHz clock rate. > > Fixes: 10e024671295 ("arm64: dts: qcom: sm8650: add interconnect dependent device nodes") > Signed-off-by: Vladimir Zapolskiy > --- Reviewed-by: Konrad Dybcio Konrad