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From:   Miquel Raynal <miquel.raynal@bootlin.com>
To:     Arseniy Krasnov <avkrasnov@sberdevices.ru>,
        Liang Yang <liang.yang@amlogic.com>,
        Miquel Raynal <miquel.raynal@bootlin.com>,
        Richard Weinberger <richard@nod.at>,
        Vignesh Raghavendra <vigneshr@ti.com>,
        Neil Armstrong <neil.armstrong@linaro.org>,
        Kevin Hilman <khilman@baylibre.com>,
        Jerome Brunet <jbrunet@baylibre.com>,
        Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
        Jianxin Pan <jianxin.pan@amlogic.com>,
        Yixun Lan <yixun.lan@amlogic.com>
Cc:     linux-mtd@lists.infradead.org,
        linux-arm-kernel@lists.infradead.org,
        linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org,
        kernel@sberdevices.ru, oxffffaa@gmail.com
Subject: Re: [RFC PATCH v1] mtd: rawnand: meson: invalidate cache on polling ECC bit
Date:   Wed, 22 Mar 2023 17:07:48 +0100
Message-Id: <20230322160748.2232587-1-miquel.raynal@bootlin.com>
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On Mon, 2023-03-13 at 07:32:44 UTC, Arseniy Krasnov wrote:
> 'info_buf' memory is cached and driver polls ECC bit in it. This bit
> is set by the NAND controller. If 'usleep_range()' returns before device
> sets this bit, 'info_buf' will be cached and driver won't see update of
> this bit and will loop forever.
> 
> Fixes: 8fae856c5350 ("mtd: rawnand: meson: add support for Amlogic NAND flash controller")
> Signed-off-by: Arseniy Krasnov <AVKrasnov@sberdevices.ru>
> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>

Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git mtd/fixes, thanks.

Miquel