Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
From:   andy.shevchenko@gmail.com
Date:   Thu, 25 May 2023 13:30:06 +0300
To:     Hugo Villeneuve <hugo@hugovil.com>
Cc:     gregkh@linuxfoundation.org, robh+dt@kernel.org,
        krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org,
        jirislaby@kernel.org, jringle@gridpoint.com,
        tomasz.mon@camlingroup.com, l.perczak@camlintechnologies.com,
        linux-serial@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org,
        Hugo Villeneuve <hvilleneuve@dimonoff.com>
Subject: Re: [PATCH v3 04/11] serial: sc16is7xx: add post reset delay
Message-ID: <ZG84rnwh3XTdY-iy@surfacebook>
References: <20230525040324.3773741-1-hugo@hugovil.com>
 <20230525040324.3773741-5-hugo@hugovil.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20230525040324.3773741-5-hugo@hugovil.com>
Precedence: bulk

Thu, May 25, 2023 at 12:03:17AM -0400, Hugo Villeneuve kirjoitti:
> From: Hugo Villeneuve <hvilleneuve@dimonoff.com>
> 
> Make sure we wait at least 3us before initiating communication with
> the device after reset.

...

> +	usleep_range(3, 5);

I would put (5, 10) instead to relax a bit the scheduler.

-- 
With Best Regards,
Andy Shevchenko