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: <6f9ddf85-e1e9-426a-2436-7f323314959a@ti.com>
Date:   Wed, 27 Jan 2021 20:50:39 +0530
From:   Aswath Govindraju <a-govindraju@...com>
To:     Nishanth Menon <nm@...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

Hi Nishanth,

On 27/01/21 8:44 pm, Nishanth Menon wrote:
> 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?
> 

There are no dependencies. The other two commits are completely
unrelated. From next time I will make sure that I use the latest next
and the delta matches.

Thanks,
Aswath