linux-kernel - Re: [PATCH v2 1/2] hwmon: (ina3221) Do not read-back to cache reg

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Date:   Thu, 18 Apr 2019 06:37:49 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Nicolin Chen <nicoleotsuka@...il.com>
Cc:     jdelvare@...e.com, linux-hwmon@...r.kernel.org,
        linux-kernel@...r.kernel.org, corbet@....net,
        linux-doc@...r.kernel.org
Subject: Re: [PATCH v2 1/2] hwmon: (ina3221) Do not read-back to cache
 reg_config

On Wed, Apr 17, 2019 at 04:12:09PM -0700, Nicolin Chen wrote:
> Reading back the CONFIG register increases an extra I2C
> transaction. This's not necessary and could be replaced
> with a local variable caching the register settings.
> 
> So this patch replaces two readback regmap_read() calls
> with a tmp variable.
> 
> Signed-off-by: Nicolin Chen <nicoleotsuka@...il.com>

Applied to hwmon-next.

Thanks,
Guenter