linux-kernel - Re: [PATCH 1/3] i2c: meson: fix clock setting overwrite

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Message-ID: <20201008095947.GC76290@ninjato>
Date:   Thu, 8 Oct 2020 11:59:47 +0200
From:   Wolfram Sang <wsa@...nel.org>
To:     Jerome Brunet <jbrunet@...libre.com>
Cc:     Kevin Hilman <khilman@...libre.com>,
        Nicolas Belin <nbelin@...libre.com>, linux-i2c@...r.kernel.org,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] i2c: meson: fix clock setting overwrite

On Wed, Oct 07, 2020 at 10:07:49AM +0200, Jerome Brunet wrote:
> When the slave address is written in do_start(), SLAVE_ADDR is written
> completely. This may overwrite some setting related to the clock rate
> or signal filtering.
> 
> Fix this by writing only the bits related to slave address. To avoid
> causing unexpected changed, explicitly disable filtering or high/low
> clock mode which may have been left over by the bootloader.
> 
> Fixes: 30021e3707a7 ("i2c: add support for Amlogic Meson I2C controller")
> Signed-off-by: Jerome Brunet <jbrunet@...libre.com>

Applied to for-current, thanks!


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