linux-kernel - Re: [PATCH 3/9] mmc: mmci: add a reference at mmc_host

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Date:   Mon, 27 Jan 2020 11:57:39 +0100
From:   Ludovic BARRE <ludovic.barre@...com>
To:     Ulf Hansson <ulf.hansson@...aro.org>
CC:     Rob Herring <robh+dt@...nel.org>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        DTML <devicetree@...r.kernel.org>,
        "linux-mmc@...r.kernel.org" <linux-mmc@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>
Subject: Re: [PATCH 3/9] mmc: mmci: add a reference at mmc_host_ops in mmci
 struct



Le 1/24/20 à 2:09 PM, Ulf Hansson a écrit :
> On Fri, 10 Jan 2020 at 14:49, Ludovic Barre <ludovic.barre@...com> wrote:
>>
>> This patch adds mmc_host_ops pointer in mmci struct.
>> The variant init function may need to add a mmc_host_ops,
>> for example to add the execute_tuning support if this feature
>> is available.
>>
>> Signed-off-by: Ludovic Barre <ludovic.barre@...com>
>> ---
>>   drivers/mmc/host/mmci.c | 1 +
>>   drivers/mmc/host/mmci.h | 1 +
>>   2 files changed, 2 insertions(+)
>>
>> diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
>> index 7b13d66cbb21..00b473f57047 100644
>> --- a/drivers/mmc/host/mmci.c
>> +++ b/drivers/mmc/host/mmci.c
>> @@ -1923,6 +1923,7 @@ static int mmci_probe(struct amba_device *dev,
>>
>>          host = mmc_priv(mmc);
>>          host->mmc = mmc;
>> +       host->mmc_ops = &mmci_ops;
> 
> Nitpick:
> 
> Can you please also move the assignment "mmc->ops = &mmci_ops;" to
> this place as well, as I think these belongs together.

OK

> 
>>
>>          /*
>>           * Some variant (STM32) doesn't have opendrain bit, nevertheless
>> diff --git a/drivers/mmc/host/mmci.h b/drivers/mmc/host/mmci.h
>> index ea6a0b5779d4..55acc0971a44 100644
>> --- a/drivers/mmc/host/mmci.h
>> +++ b/drivers/mmc/host/mmci.h
>> @@ -407,6 +407,7 @@ struct mmci_host {
>>          u32                     mask1_reg;
>>          u8                      vqmmc_enabled:1;
>>          struct mmci_platform_data *plat;
>> +       struct mmc_host_ops     *mmc_ops;
>>          struct mmci_host_ops    *ops;
>>          struct variant_data     *variant;
>>          struct pinctrl          *pinctrl;
>> --
>> 2.17.1
>>
> 
> Kind regards
> Uffe
>