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From:   Miquel Raynal <miquel.raynal@bootlin.com>
To:     Sivaprakash Murugesan <sivaprak@codeaurora.org>,
        miquel.raynal@bootlin.com, richard@nod.at, vigneshr@ti.com,
        peter.ujfalusi@ti.com, boris.brezillon@collabora.com,
        linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH V4 2/2] mtd: rawnand: qcom: set BAM mode only if not set already
Date:   Mon, 15 Jun 2020 10:59:46 +0200
Message-Id: <20200615085946.22390-1-miquel.raynal@bootlin.com>
In-Reply-To: <1591948696-16015-3-git-send-email-sivaprak@codeaurora.org>
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On Fri, 2020-06-12 at 07:58:16 UTC, Sivaprakash Murugesan wrote:
> BAM is DMA controller on QCOM ipq platforms, BAM mode on NAND driver
> is set by writing BAM_MODE_EN bit on NAND_CTRL register.
> 
> NAND_CTRL is an operational register and in BAM mode operational
> registers are read only.
> 
> So, before enabling BAM mode by writing the NAND_CTRL register, check
> if BAM mode was already enabled by the bootloader, and enable BAM mode
> only if it is not enabled already.
> 
> Signed-off-by: Sivaprakash Murugesan <sivaprak@codeaurora.org>

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

Miquel