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From: Krzysztof Kozlowski <krzk@kernel.org>
To: Sarthak Garg <quic_sartgarg@quicinc.com>,
	Ulf Hansson <ulf.hansson@linaro.org>,
	Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Bjorn Andersson <andersson@kernel.org>,
	Konrad Dybcio <konradybcio@kernel.org>,
	Adrian Hunter <adrian.hunter@intel.com>
Cc: linux-mmc@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
	quic_cang@quicinc.com, quic_nguyenb@quicinc.com,
	quic_rampraka@quicinc.com, quic_pragalla@quicinc.com,
	quic_sayalil@quicinc.com, quic_nitirawa@quicinc.com,
	quic_bhaskarv@quicinc.com, kernel@oss.qualcomm.com
Subject: Re: [PATCH V3 4/4] arm64: dts: qcom: sm8550: Remove SDR104/SDR50 broken capabilities
Date: Wed, 18 Jun 2025 09:41:11 +0200	[thread overview]
Message-ID: <5336c00d-3b80-423a-bb52-4e1ec35bc7ed@kernel.org> (raw)
In-Reply-To: <20250618072818.1667097-5-quic_sartgarg@quicinc.com>

On 18/06/2025 09:28, Sarthak Garg wrote:
> Kernel now handles all level shifter limitations related to SD card
> modes.
> As a result, the broken hardware capabilities for SDR104 and SDR50 modes
> can be removed from the device tree.
> Additionally, due to level shifter constraints, set the maximum
> frequency for High Speed (HS) mode to 37.5 MHz using the
> max-sd-hs-frequency property for sm8550.
> 
> Signed-off-by: Sarthak Garg <quic_sartgarg@quicinc.com>
> ---
>  arch/arm64/boot/dts/qcom/sm8550.dtsi | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm8550.dtsi b/arch/arm64/boot/dts/qcom/sm8550.dtsi
> index 82cabf777cd2..2c770c979d39 100644
> --- a/arch/arm64/boot/dts/qcom/sm8550.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm8550.dtsi
> @@ -3180,6 +3180,7 @@ sdhc_2: mmc@8804000 {
>  			iommus = <&apps_smmu 0x540 0>;
>  			qcom,dll-config = <0x0007642c>;
>  			qcom,ddr-config = <0x80040868>;
> +			max-sd-hs-frequency = <37500000>;
So my previous comments stay... This is SoC thus deducible from compatible.

Best regards,
Krzysztof

  reply	other threads:[~2025-06-18  7:41 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-06-18  7:28 [PATCH V3 0/4] Add level shifter support for qualcomm SOC's Sarthak Garg
2025-06-18  7:28 ` [PATCH V3 1/4] mmc: sdhci-msm: Enable tuning for SDR50 mode for SD card Sarthak Garg
2025-06-18  7:28 ` [PATCH V3 2/4] dt-bindings: mmc: controller: Add max-sd-hs-frequency property Sarthak Garg
2025-06-18  7:43   ` Krzysztof Kozlowski
2025-06-18  8:38     ` Sarthak Garg
2025-06-18  9:08       ` Krzysztof Kozlowski
2025-06-20  9:07         ` Sarthak Garg
2025-06-21 10:20     ` Konrad Dybcio
2025-06-22  9:48       ` Krzysztof Kozlowski
2025-06-23 12:08         ` Konrad Dybcio
2025-06-23 12:16           ` Krzysztof Kozlowski
2025-06-23 12:31             ` Konrad Dybcio
2025-06-24  6:06               ` Krzysztof Kozlowski
2025-07-01  9:04                 ` Konrad Dybcio
2025-07-01  9:30                   ` Krzysztof Kozlowski
2025-07-24 11:48                     ` Sarthak Garg
2025-06-18  7:28 ` [PATCH V3 3/4] mmc: core: Introduce a new flag max-sd-hs-frequency Sarthak Garg
2025-06-18  7:28 ` [PATCH V3 4/4] arm64: dts: qcom: sm8550: Remove SDR104/SDR50 broken capabilities Sarthak Garg
2025-06-18  7:41   ` Krzysztof Kozlowski [this message]
2025-06-18  8:44     ` Sarthak Garg
2025-06-18  9:08       ` Krzysztof Kozlowski
2025-06-21 10:23   ` Konrad Dybcio

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