linux-kernel - Re: [PATCH v5 4/6] memory: stm32-fmc2-ebi: add STM32 FMC2 EBI controller driver

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Message-ID: <e30abadc-83c0-f010-be36-fe8d14c4aea9@st.com>
Date:   Tue, 30 Jun 2020 11:35:38 +0200
From:   Christophe Kerello <christophe.kerello@...com>
To:     Richard Weinberger <richard.weinberger@...il.com>
CC:     Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>, <arnd@...aro.org>,
        Alexandre Torgue <alexandre.torgue@...com>,
        Marek Vasut <marex@...x.de>, <devicetree@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        <linux-mtd@...ts.infradead.org>,
        <linux-stm32@...md-mailman.stormreply.com>
Subject: Re: [PATCH v5 4/6] memory: stm32-fmc2-ebi: add STM32 FMC2 EBI
 controller driver

Hi Richard,

On 6/30/20 11:13 AM, Richard Weinberger wrote:
> On Fri, Jun 12, 2020 at 5:24 PM Christophe Kerello
> <christophe.kerello@...com> wrote:
>>
>> The driver adds the support for the STMicroelectronics FMC2 EBI controller
>> found on STM32MP SOCs.
>>
>> Signed-off-by: Christophe Kerello <christophe.kerello@...com>
>> ---
>> +       if (!IS_ERR(rstc)) {
>> +               reset_control_assert(rstc);
>> +               reset_control_deassert(rstc);
> 
> Shouldn't there be a small delay between assert and deassert?
> Other than that the code looks good to me.
> 

Even if I have currently not met any issue, I will add a udelay(2) to be 
safe. It will be part of v6.

Thanks,
Christophe Kerello.