linux-kernel - Re: [PATCH v3 2/2] arm64: dts: ti: k3-j7200: Add support for higher speed modes in MMCSD subsystems

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Message-ID: <20210127151431.pzqpbtumqzpqiqop@delta>
Date:   Wed, 27 Jan 2021 09:14:31 -0600
From:   Nishanth Menon <nm@...com>
To:     Aswath Govindraju <a-govindraju@...com>
CC:     Vignesh Raghavendra <vigneshr@...com>,
        Lokesh Vutla <lokeshvutla@...com>,
        Kishon Vijay Abraham I <kishon@...com>,
        Faiz Abbas <faiz_abbas@...com>,
        Tero Kristo <kristo@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 2/2] arm64: dts: ti: k3-j7200: Add support for higher
 speed modes in MMCSD subsystems

On 20:38-20210127, Aswath Govindraju wrote:
> The following speed modes are now supported in J7200 SoC,
> - HS200 and HS400 modes at 1.8 V card voltage, in MMCSD0 subsystem [1].
> - UHS-I speed modes in MMCSD1 subsystem [1].
> 
> Add support for UHS-I modes by adding voltage regulator device tree nodes
> and corresponding pinmux details, to power cycle and voltage switch cards.
> Also set respective tags in sdhci0 and remove no-1-8-v tag from sdhci1
> device tree nodes.
> 
> [1] - section 12.3.6.1.1 MMCSD Features, in
>       https://www.ti.com/lit/ug/spruiu1a/spruiu1a.pdf
> 
> Signed-off-by: Aswath Govindraju <a-govindraju@...com>
> ---
> 
> performance test logs using EXT4 filesystem for eMMC HS400 speed mode,
> https://pastebin.ubuntu.com/p/KFphDYXj93/
> 

5.11.0-rc3-next-20210118-00004 :

a) could you make sure to post patches when you test with latest next?
b) I see 2 patches in this series, but delta seems to be 4 patches, is
there a dependency I am not aware of?

-- 
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3  1A34 DDB5 849D 1736 249D