linux-kernel - Re: [PATCH v4 0/2] MCAN: Add support for implementing transceiver as a phy

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Date:   Mon, 19 Jul 2021 19:47:33 +0530
From:   Aswath Govindraju <a-govindraju@...com>
To:     Marc Kleine-Budde <mkl@...gutronix.de>
CC:     Chandrasekar Ramakrishnan <rcsekar@...sung.com>,
        Wolfgang Grandegger <wg@...ndegger.com>,
        "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Rob Herring <robh+dt@...nel.org>, <linux-can@...r.kernel.org>,
        <netdev@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        Vignesh Raghavendra <vigneshr@...com>,
        Lokesh Vutla <lokeshvutla@...com>,
        Kishon Vijay Abraham I <kishon@...com>
Subject: Re: [PATCH v4 0/2] MCAN: Add support for implementing transceiver as
 a phy

Hi Marc,

On 16/06/21 2:47 pm, Marc Kleine-Budde wrote:
> On 14.06.2021 18:02:53, Aswath Govindraju wrote:
>> Hi Marc,
>>
>> On 10/05/21 10:55 am, Aswath Govindraju wrote:
>>> The following series of patches add support for implementing the
>>> transceiver as a phy of m_can_platform driver.
>>>
>>> TCAN1042 has a standby signal that needs to be pulled high for
>>> sending/receiving messages[1]. TCAN1043 has a enable signal along with
>>> standby signal that needs to be pulled up for sending/receiving
>>> messages[2], and other combinations of the two lines can be used to put the
>>> transceiver in different states to reduce power consumption. On boards
>>> like the AM654-idk and J721e-evm these signals are controlled using gpios.
>>>
>>> These gpios are set in phy driver, and the transceiver can be put in
>>> different states using phy API. The phy driver is added in the series [3].
>>>
>>> This patch series is dependent on [4].
>>>
>>
>> [4] is now part of linux-next
>>
>>> [4] - https://lore.kernel.org/patchwork/patch/1413286/
>>
>> May I know if this series is okay to be picked up ?
> 
> As soon as this hits net-next/master I can pick up this series.
> 

Thank you for reply.

I am planning on posting device tree patches to arm64 tree and
Nishanth(maintainer of the tree) requested for an immutable tag if the
dependent patches are not in master. So, after applying this patch
series, can you please provide an immutable tag ?

Thanks,
Aswath

> Marc
>