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[103.229.16.4]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2c164fa00b3sm196112495ad.32.2026.06.09.01.31.14 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 09 Jun 2026 01:31:19 -0700 (PDT) Message-ID: Date: Tue, 9 Jun 2026 16:31:13 +0800 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] arm64: dts: qcom: talos-evk: fix sdhc_2 vqmmc-supply for UHS-I mode To: monish.chunara@oss.qualcomm.com, andersson@kernel.org, konradybcio@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mmc@vger.kernel.org, ulf.hansson@linaro.org, nitin.rawat@oss.qualcomm.com, pradeep.pragallapati@oss.qualcomm.com, komal.bajaj@oss.qualcomm.com, jsodhapa@qti.qualcomm.com References: <20260609073509.2453273-1-mchunara@oss.qualcomm.com> Content-Language: en-US From: Jie Gan In-Reply-To: <20260609073509.2453273-1-mchunara@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Proofpoint-GUID: ryY7RdOHMnLAddVULXKUXILgS4ptXIv2 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNjA5MDA3OCBTYWx0ZWRfXzgqZC0DQmIch n2yh7tlkhaDlxExXhxmGOrrgthdoYqyoL4G7+Hb2fJRBfTIH8k3oA1A/jn5Yh6t9HRcZd1CtqCE n/bgcGn+etdssLHHg6OtuCrOCQgqpEH77hkFWzFExPDBeCWbX7FlzdYqk+S3GBVJDIwMIz8C5ji IUmunfeDxSXpjxhEYilO0gNhATF64vfEs1yHCK7iZ/NnHvqqhoYTudqe11x0voDIaBqCJG9LpFX Jp9R8P3krcnYh3tsxXqqZ3RAGSdVemw77nzR0/p+TacPGei598S8leRhbUge65MBEt/Y3uajiv9 9bnqUhnH1WXTJpxm8t/KGoKuTvsfaSeJt+Z8ybWNRoUatAN4xou93SaPAE7Q/o8TbmBOZbU8owG +4cPP9VoP+V2loNlINF2oH7wDbn0AbkYX+f3Ulmd+QDvhyr8hrgqVlksyq3FWFXWEMOkVwnZjOg W6jj7N8GAc62+ZmqG0g== X-Authority-Analysis: v=2.4 cv=NKPlPU6g c=1 sm=1 tr=0 ts=6a27cf58 cx=c_pps a=IZJwPbhc+fLeJZngyXXI0A==:117 a=nuhDOHQX5FNHPW3J6Bj6AA==:17 a=IkcTkHD0fZMA:10 a=FelO9ux0wxsA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_K5XuSEh1TEqbUxoQ0s3:22 a=EUspDBNiAAAA:8 a=bcY_RnAor8WR6QYpvxoA:9 a=QEXdDO2ut3YA:10 a=uG9DUKGECoFWVXl0Dc02:22 X-Proofpoint-ORIG-GUID: ryY7RdOHMnLAddVULXKUXILgS4ptXIv2 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-06-09_02,2026-06-09_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 adultscore=0 spamscore=0 priorityscore=1501 lowpriorityscore=0 clxscore=1015 impostorscore=0 malwarescore=0 phishscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2605210000 definitions=main-2606090078 On 6/9/2026 3:35 PM, monish.chunara@oss.qualcomm.com wrote: > From: Monish Chunara > > SD card is detected as SDHS instead of UHS-I because sdhc_2 was > configured with vreg_s4a as vqmmc-supply, which cannot switch > between 1.8V and 3.3V. > > Switch vqmmc-supply to vreg_l2a and update its voltage range to > 1800000-2960000 uV to enable proper UHS-I signaling. > Please add Fixes tag for a fix patch. > Signed-off-by: Jaypal Sodhaparmar why is there a signed-off-by tag? Does it belong to the original author's tag? If yes, why you are the author of the posted patch. Thanks, Jie > Signed-off-by: Monish Chunara > --- > arch/arm64/boot/dts/qcom/talos-evk-som.dtsi | 4 ++-- > arch/arm64/boot/dts/qcom/talos-evk.dts | 2 +- > 2 files changed, 3 insertions(+), 3 deletions(-) > > diff --git a/arch/arm64/boot/dts/qcom/talos-evk-som.dtsi b/arch/arm64/boot/dts/qcom/talos-evk-som.dtsi > index 294354c034c3..f70823b31391 100644 > --- a/arch/arm64/boot/dts/qcom/talos-evk-som.dtsi > +++ b/arch/arm64/boot/dts/qcom/talos-evk-som.dtsi > @@ -195,8 +195,8 @@ vreg_l1a: ldo1 { > > vreg_l2a: ldo2 { > regulator-name = "vreg_l2a"; > - regulator-min-microvolt = <1650000>; > - regulator-max-microvolt = <3100000>; > + regulator-min-microvolt = <1800000>; > + regulator-max-microvolt = <2960000>; > regulator-initial-mode = ; > regulator-allow-set-load; > regulator-allowed-modes = diff --git a/arch/arm64/boot/dts/qcom/talos-evk.dts b/arch/arm64/boot/dts/qcom/talos-evk.dts > index b7f514fbc7b2..9ed48765ae6e 100644 > --- a/arch/arm64/boot/dts/qcom/talos-evk.dts > +++ b/arch/arm64/boot/dts/qcom/talos-evk.dts > @@ -189,7 +189,7 @@ &sdhc_2 { > cd-gpios = <&tlmm 99 GPIO_ACTIVE_LOW>; > > vmmc-supply = <&vreg_l10a>; > - vqmmc-supply = <&vreg_s4a>; > + vqmmc-supply = <&vreg_l2a>; > > status = "okay"; > };