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
next prev parent 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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